* [Bug c/68725] suboptimal handling of constant compound literals
[not found] <bug-68725-4@http.gcc.gnu.org/bugzilla/>
@ 2016-12-08 7:36 ` lukas at wunner dot de
2021-09-30 1:53 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: lukas at wunner dot de @ 2016-12-08 7:36 UTC (permalink / raw)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68725
Lukas Wunner <lukas at wunner dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lukas at wunner dot de
--- Comment #1 from Lukas Wunner <lukas at wunner dot de> ---
I've just hit the same issue with the 128-bit UUIDs that are used all over the
place in the kernel, in particular in the EFI subsystem.
Reproducer:
#include <stdint.h>
#include <stdio.h>
#include <string.h>
typedef struct {
uint8_t b[16];
} efi_guid_t;
#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
((const efi_guid_t) \
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, \
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
#define EFI_RNG_ALGORITHM_RAW EFI_GUID(0xe43176d7, 0xb6e8,
0x4827, 0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61)
#define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551,
0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb,
0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
#define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b,
0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)
static int efi_print_guid_ptr(const efi_guid_t *vendor)
{
for (int i = 0; i < sizeof(efi_guid_t) ; i++)
printf("%hhX", vendor->b[i]);
printf("\n");
}
static int efi_print_guid(const efi_guid_t vendor)
{
for (int i = 0; i < sizeof(efi_guid_t) ; i++)
printf("%hhX", vendor.b[i]);
printf("\n");
}
void main()
{
const efi_guid_t guid1 = EFI_RNG_ALGORITHM_RAW;
const efi_guid_t guid2 = EFI_MEMORY_ATTRIBUTES_TABLE_GUID;
efi_print_guid_ptr(&guid1);
efi_print_guid_ptr(&HCDP_TABLE_GUID);
efi_print_guid(guid2);
efi_print_guid(EFI_CONSOLE_OUT_DEVICE_GUID);
}
Compiled with -O2 (no other options) on x86_64 results in:
0000000000400440 <main>:
400440: 55 push %rbp
400441: 53 push %rbx
400442: 48 83 ec 48 sub $0x48,%rsp
400446: 48 89 e7 mov %rsp,%rdi
400449: c6 04 24 d7 movb $0xd7,(%rsp)
40044d: c6 44 24 01 76 movb $0x76,0x1(%rsp)
400452: c6 44 24 02 31 movb $0x31,0x2(%rsp)
400457: c6 44 24 03 e4 movb $0xe4,0x3(%rsp)
40045c: 48 8d 5c 24 30 lea 0x30(%rsp),%rbx
400461: c6 44 24 04 e8 movb $0xe8,0x4(%rsp)
400466: c6 44 24 05 b6 movb $0xb6,0x5(%rsp)
40046b: 48 8d 6c 24 40 lea 0x40(%rsp),%rbp
400470: c6 44 24 06 27 movb $0x27,0x6(%rsp)
400475: c6 44 24 07 48 movb $0x48,0x7(%rsp)
40047a: c6 44 24 08 b7 movb $0xb7,0x8(%rsp)
40047f: c6 44 24 09 84 movb $0x84,0x9(%rsp)
400484: c6 44 24 0a 7f movb $0x7f,0xa(%rsp)
400489: c6 44 24 0b fd movb $0xfd,0xb(%rsp)
40048e: c6 44 24 0c c4 movb $0xc4,0xc(%rsp)
400493: c6 44 24 0d b6 movb $0xb6,0xd(%rsp)
400498: c6 44 24 0e 85 movb $0x85,0xe(%rsp)
40049d: c6 44 24 0f 61 movb $0x61,0xf(%rsp)
4004a2: e8 f9 01 00 00 callq 4006a0 <efi_print_guid_ptr>
4004a7: 48 8d 7c 24 10 lea 0x10(%rsp),%rdi
4004ac: c6 44 24 10 8d movb $0x8d,0x10(%rsp)
4004b1: c6 44 24 11 93 movb $0x93,0x11(%rsp)
4004b6: c6 44 24 12 51 movb $0x51,0x12(%rsp)
4004bb: c6 44 24 13 f9 movb $0xf9,0x13(%rsp)
4004c0: c6 44 24 14 0b movb $0xb,0x14(%rsp)
4004c5: c6 44 24 15 62 movb $0x62,0x15(%rsp)
4004ca: c6 44 24 16 ef movb $0xef,0x16(%rsp)
4004cf: c6 44 24 17 42 movb $0x42,0x17(%rsp)
4004d4: c6 44 24 18 82 movb $0x82,0x18(%rsp)
4004d9: c6 44 24 19 79 movb $0x79,0x19(%rsp)
4004de: c6 44 24 1a a8 movb $0xa8,0x1a(%rsp)
4004e3: c6 44 24 1b 4b movb $0x4b,0x1b(%rsp)
4004e8: c6 44 24 1c 79 movb $0x79,0x1c(%rsp)
4004ed: c6 44 24 1d 61 movb $0x61,0x1d(%rsp)
4004f2: c6 44 24 1e 78 movb $0x78,0x1e(%rsp)
4004f7: c6 44 24 1f 98 movb $0x98,0x1f(%rsp)
4004fc: e8 9f 01 00 00 callq 4006a0 <efi_print_guid_ptr>
400501: 48 8b 05 78 02 00 00 mov 0x278(%rip),%rax # 400780
<guid2.2638>
400508: 48 8b 15 79 02 00 00 mov 0x279(%rip),%rdx # 400788
<guid2.2638+0x8>
40050f: 48 89 44 24 30 mov %rax,0x30(%rsp)
400514: 48 89 54 24 38 mov %rdx,0x38(%rsp)
400519: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
400520: 0f b6 33 movzbl (%rbx),%esi
400523: 31 c0 xor %eax,%eax
400525: bf 64 07 40 00 mov $0x400764,%edi
40052a: 48 83 c3 01 add $0x1,%rbx
40052e: e8 dd fe ff ff callq 400410 <printf@plt>
400533: 48 39 eb cmp %rbp,%rbx
400536: 75 e8 jne 400520 <main+0xe0>
400538: bf 0a 00 00 00 mov $0xa,%edi
40053d: 48 8d 5c 24 20 lea 0x20(%rsp),%rbx
400542: 48 8d 6c 24 30 lea 0x30(%rsp),%rbp
400547: e8 b4 fe ff ff callq 400400 <putchar@plt>
40054c: 48 8b 05 1d 02 00 00 mov 0x21d(%rip),%rax # 400770
<C.0.2641>
400553: 48 8b 15 1e 02 00 00 mov 0x21e(%rip),%rdx # 400778
<C.0.2641+0x8>
40055a: 48 89 44 24 20 mov %rax,0x20(%rsp)
40055f: 48 89 54 24 28 mov %rdx,0x28(%rsp)
400564: 0f 1f 40 00 nopl 0x0(%rax)
400568: 0f b6 33 movzbl (%rbx),%esi
40056b: 31 c0 xor %eax,%eax
40056d: bf 64 07 40 00 mov $0x400764,%edi
400572: 48 83 c3 01 add $0x1,%rbx
400576: e8 95 fe ff ff callq 400410 <printf@plt>
40057b: 48 39 dd cmp %rbx,%rbp
40057e: 75 e8 jne 400568 <main+0x128>
400580: bf 0a 00 00 00 mov $0xa,%edi
400585: e8 76 fe ff ff callq 400400 <putchar@plt>
40058a: 48 83 c4 48 add $0x48,%rsp
40058e: 5b pop %rbx
40058f: 5d pop %rbp
400590: c3 retq
400591: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
400598: 00 00 00
40059b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
Note how the UUIDs are generated on the stack in a very time- and
space-inefficient manner, requiring 64 bytes in the text section instead of
just 16 bytes in rodata.
Note also that this only occurs if the UUIDs are passed to a function by
reference. If they're passed in by value, as is the case with the calls to
efi_print_guid(), they're put in rodata. I've also found that if guid1 is
declared static, it can be forced to rodata. But this workaround is not an
option if the compound literal is passed in directly, as in the case of
"efi_print_guid_ptr(&HCDP_TABLE_GUID);".
The C spec says that the compound literal has static storage duration if it
occurs at file scope and automatic storage duration if it occurs at block
scope. However guid1 is declared const and efi_print_guid_ptr() also declares
the argument const, so there's absolutely no reason to generate the UUID on the
stack at runtime.
Tested with gcc version 6.1.1 20160802 (Debian 6.1.1-11).
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.1.1-11'
--with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-6 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib
--disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
>From gcc-bugs-return-546938-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 07:42:10 2016
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From: "damian at sourceryinstitute dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78682] [Coarray] [OOP] ICE calling (locally) a TBP of a remote CAF derived type
Date: Thu, 08 Dec 2016 07:42:00 -0000
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Damian Rouson <damian at sourceryinstitute dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |damian at sourceryinstitute dot or
| |g
--- Comment #5 from Damian Rouson <damian at sourceryinstitute dot org> ---
In the August 31 draft of the Fortran 2015 standard, section 11.6.2, paragraph
3, the first bullet states, "if a variable is defined on an image in a segment,
it shall not be referenced, defined, or become undefined in a segment on
another image unless the segments are ordered". In Stefano's example, the
line
core_caf%core_value = 1
defines a value on on image 1 that is later referenced on image 2 via
if (this_image()==2) call core_caf[1]%core_value_print
but there is no image control statement between the definition and the
reference. That makes the code non-conforming.
>From gcc-bugs-return-546939-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 07:46:30 2016
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/68725] suboptimal handling of constant compound literals
Date: Thu, 08 Dec 2016 07:46:00 -0000
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--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this has now been fixed on the trunk. There is a pass which combines
stores for constants.
>From gcc-bugs-return-546940-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 07:49:02 2016
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Subject: [Bug rtl-optimization/78671] [7 Regression] ICE: in extract_constrain_insn, at recog.c:2213 with -Og -march=skylake-avx512
Date: Thu, 08 Dec 2016 07:49:00 -0000
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--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Vladimir Makarov from comment #3)
> It has just triggered a latent bug. It is a pretty interesting bug. The
> problem is that a TImode pseudo has class INT_SSE_REGS and r15(44) smoothly
> goes to xmm8 (45). So using available regs in LRA, r15 is ok for the pseudo.
>
> Actually on machine-depended side, a more detail implementation
> HARD_REGNO_MODE_OK could solve the problem. But it is too complicated and
> error prone and require a lot of efforts to define the macro accurately for
> all classes and modes.
On machine-dependend side, there is HARD_REGNO_NREGS macro that should be taken
into account when allocating modes that live in multiple registers. This macro
returns 2 for r15 in TImode. There is no r16 available, so r15 should be
rejected as a TImode register from the beginning.
>From gcc-bugs-return-546941-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 07:54:35 2016
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Subject: [Bug tree-optimization/77862] [7 Regression] ice in add_equivalence
Date: Thu, 08 Dec 2016 07:54:00 -0000
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--- Comment #7 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Jakub Jelinek from comment #6)
> So is this fixed now?
It seems fixed to me. Latest gcc trunk.
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Subject: [Bug tree-optimization/77862] [7 Regression] ice in add_equivalence
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kugan at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from kugan at gcc dot gnu.org ---
Fixed in trunk.
>From gcc-bugs-return-546943-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 08:47:03 2016
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From: "fmarchal at perso dot be" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/78732] New: Wrong description for Wendif-labels
Date: Thu, 08 Dec 2016 08:47:00 -0000
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Bug ID: 78732
Summary: Wrong description for Wendif-labels
Product: gcc
Version: 6.2.0
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Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
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In file gcc/c-family/c.opt, at line 421, the description for Wendif-labels is
"Warn about stray tokens after #elif and #endif."
I believe the message is about #else and #endif instead of #elif. Tokens are
expected after #elif.
>From gcc-bugs-return-546944-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 08:52:03 2016
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From: "sebastian.huber@embedded-brains.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/78694] [ARM] ICE with -mthumb -ftls-model=local-exec -O2
Date: Thu, 08 Dec 2016 08:52:00 -0000
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--- Comment #9 from Sebastian Huber <sebastian.huber@embedded-brains.de> ---
I did a fresh git clone today on gcc113 of the GCC compile farm. I built an
arm-linux-gnueabihf GCC:
./install/bin/arm-linux-gnueabihf-gcc --version --verbose
Using built-in specs.
COLLECT_GCC=./install/bin/arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/home/sh/install/libexec/gcc/arm-linux-gnueabihf/7.0.0/lto-wrapper
arm-linux-gnueabihf-gcc (GCC) 7.0.0 20161208 (experimental) [trunk revision
5b2a614:e5a02c3:beea0800baadbe98febe5a4e54112d76ea10a9d3]
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Target: arm-linux-gnueabihf
Configured with: ../gcc/configure --prefix=/home/sh/install
--target=arm-linux-gnueabihf --disable-multilib --enable-languages=c
Thread model: posix
gcc version 7.0.0 20161208 (experimental) [trunk revision
5b2a614:e5a02c3:beea0800baadbe98febe5a4e54112d76ea10a9d3] (GCC)
COLLECT_GCC_OPTIONS='--version' '-v' '-mtls-dialect=gnu'
/home/sh/install/libexec/gcc/arm-linux-gnueabihf/7.0.0/cc1 -quiet -v
help-dummy -quiet -dumpbase help-dummy -mtls-dialect=gnu -auxbase help-dummy
-version --version -o /tmp/ccDBeQFm.s
GNU C11 (GCC) version 7.0.0 20161208 (experimental) [trunk revision
5b2a614:e5a02c3:beea0800baadbe98febe5a4e54112d76ea10a9d3] (arm-linux-gnueabihf)
compiled by GNU C version 4.8.4, GMP version 5.1.3, MPFR version
3.1.2-p3, MPC version 1.0.1, isl version none
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
COLLECT_GCC_OPTIONS='--version' '-v' '-mtls-dialect=gnu'
as -v -meabi=5 --version -o /tmp/cc6waYtC.o /tmp/ccDBeQFm.s
GNU assembler version 2.24 (aarch64-linux-gnu) using BFD version (GNU Binutils
for Ubuntu) 2.24
Assembler messages:
Error: unrecognized option -meabi=5
I get:
./install/bin/arm-linux-gnueabihf-gcc -S task.i -mthumb -O2
-ftls-model=local-exec
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c: In function
‘gomp_create_target_task’:
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: error: invalid rtl
sharing found in the insn
(insn 1569 1568 1570 (unspec_volatile [
(const:SI (unspec:SI [
(symbol_ref:SI ("gomp_tls_data") [flags 0xea] <var_decl
0x7f7f4ad3f0 gomp_tls_data>)
(const_int 4 [0x4])
] UNSPEC_TLS))
] VUNSPEC_POOL_4) -1
(nil))
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: error: shared rtx
(const:SI (unspec:SI [
(symbol_ref:SI ("gomp_tls_data") [flags 0xea] <var_decl
0x7f7f4ad3f0 gomp_tls_data>)
(const_int 4 [0x4])
] UNSPEC_TLS))
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: internal compiler
error: internal consistency failure
0x7beabf verify_rtx_sharing
../../gcc/gcc/emit-rtl.c:2752
0x7bea1b verify_rtx_sharing
../../gcc/gcc/emit-rtl.c:2785
0x7bef07 verify_insn_sharing
../../gcc/gcc/emit-rtl.c:2838
0x7c3cfb verify_rtl_sharing()
../../gcc/gcc/emit-rtl.c:2861
0xa56e2f execute_function_todo
../../gcc/gcc/passes.c:1982
0xa5770f do_per_function
../../gcc/gcc/passes.c:1649
0xa578c7 execute_todo
../../gcc/gcc/passes.c:2015
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
>From gcc-bugs-return-546945-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 08:53:17 2016
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Subject: [Bug bootstrap/78733] New: [7 Regression] bootstrap broken on aarch64-linux-gnu
Date: Thu, 08 Dec 2016 08:53:00 -0000
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Bug ID: 78733
Summary: [7 Regression] bootstrap broken on aarch64-linux-gnu
Product: gcc
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trunk 20161207 fails to build on aarch64-linux-gnu in libgfortran (binutils
trunk 20161202 is used for the build):
/tmp/ccEfI0qj.s: Assembler messages:
/tmp/ccEfI0qj.s:194: Error: invalid addressing mode at operand 3 -- `ldp
x8,x9,.LC0'
/tmp/ccEfI0qj.s:1305: Error: invalid addressing mode at operand 3 -- `ldp
x10,x11,.LC9'
Makefile:2982: recipe for target 'maxval_i16.lo' failed
make[5]: *** [maxval_i16.lo] Error 1
configured as -enable-languages=c,ada,c++,go,fortran,objc,obj-c++
--prefix=/usr/lib/gcc-snapshot --program-prefix= --enable-shared
--enable-linker-build-id --disable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-libquadmath --enable-plugin --with-system-zlib --enable-multiarch
--enable-fix-cortex-a53-843419 --disable-werror --enable-checking=yes
--build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu
>From gcc-bugs-return-546946-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:02:04 2016
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |assemble-failure, build
Component|bootstrap |target
Target Milestone|--- |7.0
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I https://gcc.gnu.org/ml/gcc-testresults/2016-12/msg00866.html
>From gcc-bugs-return-546947-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:02:37 2016
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
Date: Thu, 08 Dec 2016 09:02:00 -0000
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--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I don't see it in my last build
https://gcc.gnu.org/ml/gcc-testresults/2016-12/msg00866.html
>From gcc-bugs-return-546948-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:09:23 2016
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/59997] c_pointer = c_loc(...) internal compiler error
Date: Thu, 08 Dec 2016 09:09:00 -0000
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janus at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Known to work| |4.9.4
Resolution|--- |FIXED
Target Milestone|--- |4.9.0
Known to fail| |4.7.4, 4.8.5
--- Comment #10 from janus at gcc dot gnu.org ---
(In reply to kargl from comment #9)
> The original code in comment #1 compiles and executes.
... with everything from 4.9 on upward.
> Is there some reason why this PR is still open?
I don't think so. Apparently there was some effort planned to fix it on 4.8
(which did not happen after all, it seems). That branch is closed by now.
Closing this PR.
>From gcc-bugs-return-546949-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:24:39 2016
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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James Greenhalgh <jgreenhalgh at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |jgreenhalgh at gcc dot gnu.org,
| |wdijkstr at arm dot com
--- Comment #3 from James Greenhalgh <jgreenhalgh at gcc dot gnu.org> ---
I see about 250 new failures when testing with -mcmodel=tiny after r243346.
These are of the same form as the failure you report:
FAIL: gfortran.dg/alloc_comp_assign_4.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess
errors)
/tmp/ccxfODDL.s: Assembler messages:
/tmp/ccxfODDL.s:30: Error: invalid addressing mode at operand 3 -- `ldp
x24,x25,.LC2'
I haven't seen this for other values of mcmodel in my testing. I wonder how
-mcmodel=tiny made it in to your bootstrap flags?
This patch probably should be reverted for now given the number of failures.
>From gcc-bugs-return-546950-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:26:12 2016
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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ktkachov at gcc dot gnu.org changed:
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----------------------------------------------------------------------------
CC| |ktkachov at gcc dot gnu.org
--- Comment #4 from ktkachov at gcc dot gnu.org ---
> I haven't seen this for other values of mcmodel in my testing. I wonder how
> -mcmodel=tiny made it in to your bootstrap flags?
>
Perhaps the --enable-multiarch option gets gcc to build the libraries for all
the -mcmodel variations?
>From gcc-bugs-return-546951-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:28:59 2016
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Subject: [Bug c++/77375] [5 Regression] constant object with mutable subobject allocated in read-only memory
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] constant |[5 Regression] constant
|object with mutable |object with mutable
|subobject allocated in |subobject allocated in
|read-only memory |read-only memory
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
>From gcc-bugs-return-546952-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:29:53 2016
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Subject: [Bug c++/77482] [6 Regression] Segfault when compiling ill-formed constexpr code
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug c++/77637] ICE on x86_64-linux-gnu (Segmentation fault, tree_check, cp_parser_std_attribute_list...)
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug middle-end/77624] [5 Regression] ICE on x86_64-linux-gnu (internal compiler error: in fold_builtin_atomic_always_lock_free, at builtins.c:5583)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] ICE on |[5 Regression] ICE on
|x86_64-linux-gnu (internal |x86_64-linux-gnu (internal
|compiler error: in |compiler error: in
|fold_builtin_atomic_always_ |fold_builtin_atomic_always_
|lock_free, at |lock_free, at
|builtins.c:5583) |builtins.c:5583)
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
>From gcc-bugs-return-546956-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:30:59 2016
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Subject: [Bug fortran/69860] ICE on missing end apostrophe with character(kind=4)
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----------------------------------------------------------------------------
Keywords| |ice-on-invalid-code
--- Comment #14 from janus at gcc dot gnu.org ---
(In reply to kargl from comment #13)
> Gerhard can re-do your testing. I seem to have good luck with FreeBSD
> in testing this.
On Ubuntu 16.10, I don't see any ICE with current trunk either, using the
method from comment #11.
But then, I don't even see ICEs with 5.4.1 or 6.2.0. I only see some with 4.9.
From my side, this can be closed.
>From gcc-bugs-return-546954-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:30:50 2016
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Subject: [Bug ipa/77587] [5 Regression] C compiler produces incorrect stack alignment with __attribute__((weak))
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] C compiler |[5 Regression] C compiler
|produces incorrect stack |produces incorrect stack
|alignment with |alignment with
|__attribute__((weak)) |__attribute__((weak))
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
>From gcc-bugs-return-546957-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:31:56 2016
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-546958-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:32:08 2016
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Subject: [Bug tree-optimization/77665] [5 Regression] ICE in expand_GOMP_SIMD_VF, at internal-fn.c:172
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] ICE in |[5 Regression] ICE in
|expand_GOMP_SIMD_VF, at |expand_GOMP_SIMD_VF, at
|internal-fn.c:172 |internal-fn.c:172
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug fortran/77666] ICE in gfc_omp_clause_default_ctor, at fortran/trans-openmp.c:471
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to ktkachov from comment #4)
> > I haven't seen this for other values of mcmodel in my testing. I wonder how
> > -mcmodel=tiny made it in to your bootstrap flags?
> >
>
> Perhaps the --enable-multiarch option gets gcc to build the libraries for
> all the -mcmodel variations?
My build is auto turning on multi-arch so no. I am suspecting the workaround
a53 errata is the difference that matters.
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Subject: [Bug c++/77722] -fsanitize=undefined doesn't give runtime error in function without return value, unless at least 2 instructions
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug sanitizer/66343] "Error: .Lubsan_type3 already defined" with UBSan and precompiled headers
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug fortran/77973] [6 Regression] ICE in scan_omp_1_op, at omp-low.c:3841
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug c++/77467] Segmentation fault with switch statement in constexpr function
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug c++/78089] __builtin_shuffle parsing bug
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug middle-end/78025] [5 Regression] ICE in simd_clone_adjust, at omp-simd-clone.c:1126
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] ICE in |[5 Regression] ICE in
|simd_clone_adjust, at |simd_clone_adjust, at
|omp-simd-clone.c:1126 |omp-simd-clone.c:1126
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
>From gcc-bugs-return-546966-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:34:33 2016
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Subject: [Bug rtl-optimization/77919] [5 Regression] ICE converting DC to V2DF mode
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----------------------------------------------------------------------------
Summary|[5/6 Regression] ICE |[5 Regression] ICE
|converting DC to V2DF mode |converting DC to V2DF mode
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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--- Comment #6 from Matthias Klose <doko at gcc dot gnu.org> ---
yes, I'm configuring with --enable-fix-cortex-a53-843419
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
Date: Thu, 08 Dec 2016 09:37:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-08
CC| |mpolacek at gcc dot gnu.org
Target Milestone|--- |7.0
Summary|ICE on valid code at -O2 |[7 Regression] ICE on valid
|and -O3 on |code at -O2 and -O3 on
|x86_64-linux-gnu: in |x86_64-linux-gnu: in
|set_value_range, at |set_value_range, at
|tree-vrp.c:371 |tree-vrp.c:371
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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James Greenhalgh <jgreenhalgh at gcc dot gnu.org> changed:
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--- Comment #7 from James Greenhalgh <jgreenhalgh at gcc dot gnu.org> ---
(In reply to Matthias Klose from comment #6)
> yes, I'm configuring with --enable-fix-cortex-a53-843419
And running the testsuite with -mfix-cortex-a53-843419 shows the failures.
So the problem is visible with either -mcmodel=tiny or -mfix-cortex-a53-843419
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
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--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
commit 166f817874730a11c132419554bb13a34c01963f
Author: kugan <kugan@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed Nov 9 01:41:26 2016 +0000
Fix ice in set_value_range
gcc/ChangeLog:
2016-11-09 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/78121
* ipa-cp.c (propagate_vr_accross_jump_function): Pass param type.
Also fold constant passed as argument while computing value range.
(propagate_constants_accross_call): Pass param type.
* ipa-prop.c: export ipa_get_callee_param_type.
* ipa-prop.h: export ipa_get_callee_param_type.
gcc/testsuite/ChangeLog:
2016-11-09 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/78121
* gcc.dg/ipa/pr78121.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241989
138bc75d-0d04-0410-961f-82ee72b054a4
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Subject: [Bug middle-end/78419] ICE with target_clone on invalid target
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug fortran/78299] [6 Regression] ICE in expand_omp_for_static_nochunk, at omp-low.c:9622
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug middle-end/67335] [6 Regression] ICE in compiling omp simd function with unused argument
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug c++/77285] [5 Regression] extern thread_local linkage
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] extern |[5 Regression] extern
|thread_local linkage |thread_local linkage
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug rtl-optimization/78378] [5 Regression] wrong code when combining shift + mult + zero_extend
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] wrong code |[5 Regression] wrong code
|when combining shift + mult |when combining shift + mult
|+ zero_extend |+ zero_extend
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
>From gcc-bugs-return-546978-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:41:40 2016
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Subject: [Bug c++/77739] [5 Regression] internal compiler error: in create_tmp_var, at gimple-expr.c:524
Date: Thu, 08 Dec 2016 09:41:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] internal |[5 Regression] internal
|compiler error: in |compiler error: in
|create_tmp_var, at |create_tmp_var, at
|gimple-expr.c:524 |gimple-expr.c:524
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug middle-end/78416] wrong code for division by (u128)~INT64_MAX at -O0
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug middle-end/69183] ICE when using OpenMP PRIVATE keyword in OMP DO loop not explicitly encapsulated in OMP PARALLEL region
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug c++/77591] [6 Regression] decltype(auto) and ternary operator allow returning local reference without a warning
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-546981-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:42:16 2016
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Subject: [Bug fortran/78298] ICE in lookup_decl_in_outer_ctx, bei omp-low.c:4115
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug rtl-optimization/78546] [6 Regression] wrong code at -O2 and above
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-546985-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:44:44 2016
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Subject: [Bug middle-end/78540] [6 Regression] ICE: in df_refs_verify, at df-scan.c:4062 with -O -march=core2
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[5/6 Regression] ICE on |[5 Regression] ICE on
|invalid C++ code on |invalid C++ code on
|x86_64-linux-gnu (internal |x86_64-linux-gnu (internal
|compiler error: tree check: |compiler error: tree check:
|expected class ‘type’, have |expected class ‘type’, have
|‘exceptional’ (error_mark) |‘exceptional’ (error_mark)
|in build_value_init_noctor, |in build_value_init_noctor,
|at cp/init.c:380) |at cp/init.c:380)
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 6.3+ as well.
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Subject: [Bug c++/78734] New: [C++17] P0145R3: function arguments are indeterminately sequenced
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78734
Bug ID: 78734
Summary: [C++17] P0145R3: function arguments are
indeterminately sequenced
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: jason at gcc dot gnu.org
Target Milestone: ---
P0145R3 says that function arguments are indeterminately sequenced.
Consider the following example from
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0431r0.htm:
markus@x4 /tmp % cat order.cpp
#include <stdio.h>
void foo(int a, int b, int c) { printf("%d %d %d\n", a, b, c); }
int main() {
int i = 0;
foo(++i, ++i, ++i);
}
markus@x4 /tmp % g++ -std=c++1z order.cpp
markus@x4 /tmp % ./a.out
3 3 3
This is wrong. It should be a permutation of "1 2 3".
>From gcc-bugs-return-546983-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:44:25 2016
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-546988-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:48:59 2016
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Subject: [Bug tree-optimization/78725] [7 Regression] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Target Milestone|--- |7.0
Summary|wrong code at -O3 on |[7 Regression] wrong code
|x86_64-linux-gnu (in both |at -O3 on x86_64-linux-gnu
|32-bit and 64-bit modes) |(in both 32-bit and 64-bit
| |modes)
>From gcc-bugs-return-546987-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:48:36 2016
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Subject: [Bug tree-optimization/78725] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
Date: Thu, 08 Dec 2016 09:48:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-08
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This used to work correctly, then with introduction of loop splitting in
r241374 it started to ICE:
/home/brq/mpolacek/2.c: In function ‘main’:
/home/brq/mpolacek/2.c:12:5: error: type mismatch in binary expression
int main ()
^~~~
int
int
unsigned char
_38 = _37 - d_lsm.12_20;
/home/brq/mpolacek/2.c:12:5: internal compiler error: verify_gimple failed
0xe85c03 verify_gimple_in_cfg(function*, bool)
../../gcc/tree-cfg.c:5208
0xd19da0 execute_function_todo
../../gcc/passes.c:1965
0xd18e2b do_per_function
../../gcc/passes.c:1649
0xd19f72 execute_todo
../../gcc/passes.c:2015
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
This ICE was fixed in r241551 but we've miscompiled this since.
>From gcc-bugs-return-546989-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 09:58:39 2016
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Subject: [Bug target/78694] [ARM] ICE with -mthumb -ftls-model=local-exec -O2
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ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #10 from ktkachov at gcc dot gnu.org ---
Now reproduced. Sorry for the trouble. I also had to explicitly specify:
-mcpu=arm7tdmi -mfloat-abi=soft -mfpu=vfp
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Subject: [Bug target/78694] [ARM] ICE with -mthumb -ftls-model=local-exec -O2
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--- Comment #11 from ktkachov at gcc dot gnu.org ---
Though it is quite fragile. I can't reproduce it on a cross-toolchain, but it
does trigger on a native machine
>From gcc-bugs-return-546991-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:01:49 2016
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Subject: [Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization
Date: Thu, 08 Dec 2016 10:01:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Single file testcase:
unsigned char b = 36, c = 173;
unsigned int d;
__attribute__((noinline, noclone)) void
foo (void)
{
unsigned a = ~b;
d = a * c * c + 1023094746 * a;
}
int
main ()
{
if (__SIZEOF_INT__ != 4 || __CHAR_BIT__ != 8)
return 0;
asm volatile ("" : : "g" (&b), "g" (&c) : "memory");
foo ();
if (d != 799092689)
__builtin_abort ();
return 0;
}
>From gcc-bugs-return-546992-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:03:23 2016
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Subject: [Bug libstdc++/78723] [variant] P0393r3: "Making variant greater equal again" is unimplemented
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-12-08
Ever confirmed|0 |1
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Tim Shen from comment #1)
> I refuse to implement this due to a different political stance.
That was exactly my thought too!
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Subject: [Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r220164, let me have a look.
>From gcc-bugs-return-546994-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:08:22 2016
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From: "eric at efcs dot ca" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/78723] [variant] P0393r3: "Making variant greater equal again" is unimplemented
Date: Thu, 08 Dec 2016 10:08:00 -0000
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--- Comment #3 from Eric Fiselier <eric at efcs dot ca> ---
The joke title was a lot funnier a year ago.
>From gcc-bugs-return-546998-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:02 2016
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Subject: [Bug rtl-optimization/78727] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
Date: Thu, 08 Dec 2016 10:17:00 -0000
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 78728 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-546996-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:01 2016
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Subject: [Bug rtl-optimization/78728] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 78727 ***
>From gcc-bugs-return-546997-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:01 2016
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Subject: [Bug rtl-optimization/78729] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 78727 ***
>From gcc-bugs-return-547000-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:19 2016
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Subject: [Bug rtl-optimization/78727] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 78730 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-546995-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:01 2016
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Subject: [Bug rtl-optimization/78727] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 78729 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-546999-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:17:19 2016
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Subject: [Bug rtl-optimization/78730] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 78727 ***
>From gcc-bugs-return-547001-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:27:51 2016
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Subject: [Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization
Date: Thu, 08 Dec 2016 10:27:00 -0000
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Most likely one of the endless reassoc bugs not properly updating or
invalidating range information. Before reassoc1 we have:
# RANGE [4294967040, 4294967295]
a_11 = (unsigned int) _3;
c.1_4 = c;
# RANGE [0, 255] NONZERO 255
_5 = (unsigned int) c.1_4;
# RANGE ~[1, 4294902015]
_6 = _5 * a_11;
# RANGE ~[1, 4278320895]
_7 = _5 * _6;
which looks correct, a_11 is int [-256, 1] converted to unsigned int, and c is
unsigned char.
But reassoc1 turns this into:
# RANGE [4294967040, 4294967295]
a_11 = (unsigned int) _3;
c.1_4 = c;
# RANGE [0, 255] NONZERO 255
_5 = (unsigned int) c.1_4;
# RANGE ~[1, 4278320895]
_7 = _5 * _5;
_13 = _7 + 1023094746;
_14 = _13 * a_11;
It should have reused the SSA_NAME (_7) for something different, _5 * _5 has a
range of [0, 65025] and could have been used in debug stmts later on.
>From gcc-bugs-return-547002-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 10:32:09 2016
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Subject: [Bug libstdc++/77459] [6 Regression] undefined reference to `snprintf' when building mingw-w64 cross-compiler
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Last reconfirmed| |2016-12-08
Ever confirmed|0 |1
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I'm backporting this to gcc-6-branch too.
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From: "kugan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
Date: Thu, 08 Dec 2016 10:32:00 -0000
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kugan at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kugan at gcc dot gnu.org
--- Comment #3 from kugan at gcc dot gnu.org ---
Created attachment 40280
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40280&action=edit
untested patch
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From: "sebastian.huber@embedded-brains.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/78694] [ARM] ICE with -mthumb -ftls-model=local-exec -O2
Date: Thu, 08 Dec 2016 10:57:00 -0000
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--- Comment #12 from Sebastian Huber <sebastian.huber@embedded-brains.de> ---
Its strange that it is so hard to reproduce. Maybe it has something to do with
the default architecture version.
It fails with:
-mthumb -O2 -ftls-model=local-exec -march=armv4t
-mthumb -O2 -ftls-model=local-exec -march=armv5t
-mthumb -O2 -ftls-model=local-exec -march=armv6
It works with:
-mthumb -O2 -ftls-model=local-exec -march=armv7
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Subject: [Bug middle-end/78684] [7 Regression] ICE in create_intersect_range_checks_index, at tree-vect-loop-manip.c:2074
Date: Thu, 08 Dec 2016 10:57:00 -0000
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--- Comment #9 from amker at gcc dot gnu.org ---
Author: amker
Date: Thu Dec 8 10:56:41 2016
New Revision: 243431
URL: https://gcc.gnu.org/viewcvs?rev=243431&root=gcc&view=rev
Log:
PR middle-end/78684
* tree-vect-loop-manip.c (create_intersect_range_checks_index): Check
sign bit for index step of data reference.
gcc/testsuite
PR middle-end/78684
* g++.dg/torture/pr78684.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr78684.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-loop-manip.c
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From: "pmderodat at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug debug/78112] [7 regression] invalid DWARF generated by the compiler: DIE has multiple AT_inline attributes
Date: Thu, 08 Dec 2016 11:01:00 -0000
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--- Comment #18 from pmderodat at gcc dot gnu.org ---
Author: pmderodat
Date: Thu Dec 8 11:01:03 2016
New Revision: 243432
URL: https://gcc.gnu.org/viewcvs?rev=243432&root=gcc&view=rev
Log:
[PR78112] Remove platform-dependent checks in g++.dg/pr78112.C
... as there checks failed on many platforms. As a replacement, this
commit also adds a new testcase from source reduction. The hope is that
this new testcase will get a consistent output across all platforms.
gcc/testsuite/
PR debug/78112
* g++.dg/pr78112.C: Remove platform-dependent checks.
* g++.dg/pr78112-2.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/pr78112-2.C
Modified:
trunk/gcc/testsuite/g++.dg/pr78112.C
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Subject: [Bug debug/78112] [7 regression] invalid DWARF generated by the compiler: DIE has multiple AT_inline attributes
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--- Comment #19 from pmderodat at gcc dot gnu.org ---
Author: pmderodat
Date: Thu Dec 8 11:04:11 2016
New Revision: 243433
URL: https://gcc.gnu.org/viewcvs?rev=243433&root=gcc&view=rev
Log:
Add the missing ChangeLog entry for r243432
2016-12-08 Pierre-Marie de Rodat <derodat@adacore.com>
PR debug/78112
* g++.dg/pr78112.C: Remove platform-dependent checks.
* g++.dg/pr78112-2.C: New testcase.
Modified:
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug target/78694] [ARM] ICE with -mthumb -ftls-model=local-exec -O2
Date: Thu, 08 Dec 2016 11:15:00 -0000
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ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-checking
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ktkachov at gcc dot gnu.org
Target Milestone|--- |7.0
--- Comment #13 from ktkachov at gcc dot gnu.org ---
Looks like dump_minipool should be doing a copy_rtx before emitting the
patterns.
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Subject: [Bug libstdc++/78264] [7 regression] ICE in build_noexcept_spec, at cp/except.c:1196
Date: Thu, 08 Dec 2016 11:16:00 -0000
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Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
It's the new macro in c++config:
#if __cpp_noexcept_function_type
#define _GLIBCXX_NOEXCEPT_PARM , bool _N
#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_N)
#else
#define _GLIBCXX_NOEXCEPT_PARM
#define _GLIBCXX_NOEXCEPT_QUAL
#endif
See this comment a few lines below in the same file:
// This marks string literals in header files to be extracted for eventual
// translation. It is primarily used for messages in thrown exceptions; see
// src/functexcept.cc. We use __N because the more traditional _N is used
// for something else under certain OSes (see BADNAMES).
#define __N(msgid) (msgid)
Testing trivial fix...
>From gcc-bugs-return-547010-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 11:22:53 2016
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From: "sirl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/78735] New: profiledbootstrap with --enable-checking=yes,rtl fails on trunk due to -Werror=strict-overflow
Date: Thu, 08 Dec 2016 11:22:00 -0000
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Bug ID: 78735
Summary: profiledbootstrap with --enable-checking=yes,rtl fails
on trunk due to -Werror=strict-overflow
Product: gcc
Version: 7.0
Status: UNCONFIRMED
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Priority: P3
Component: rtl-optimization
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Reporter: sirl at gcc dot gnu.org
Target Milestone: ---
Hi,
current trunk (tried r243299 and r243376) on x86_64 fails a profiledbootstrap
with --enable-checking=yes,rtl like that:
/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/./prev-gcc/xg++
-B/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/./prev-gcc/
-B/usr/x86_64-suse-linux/bin/ -nostdinc++
-B/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/src/.libs
-B/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/libsupc++/.libs
-I/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/include/x86_64-suse-linux
-I/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/include
-I/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/libstdc++-v3/libsupc++
-L/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/src/.libs
-L/home/fsirl/rpmbuild/BUILD/gcc-7.0.0-r243376/obj-x86_64-suse-linux/prev-x86_64-suse-linux/libstdc++-v3/libsupc++/.libs
-fno-PIE -c -O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -funwind-tables
-fasynchronous-unwind-tables -U_FORTIFY_SOURCE -fprofile-use -DIN_GCC
-fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing
-Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror
-fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc -I../../gcc/.
-I../../gcc/../include -I../../gcc/../libcpp/include
-I../../gcc/../libdecnumber -I../../gcc/../libdecnumber/bid -I../libdecnumber
-I../../gcc/../libbacktrace -o combine.o -MT combine.o -MMD -MP -MF
./.deps/combine.TPo ../../gcc/combine.c
In file included from ../../gcc/combine.c:83:0:
../../gcc/combine.c: In function 'int recog_for_combine(rtx_def**, rtx_insn*,
rtx_def**)':
../../gcc/rtl.h:1076:17: error: assuming signed overflow does not occur when
assuming that (X - c) > X is always false [-Werror=strict-overflow]
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
^
../../gcc/rtl.h:702:45: note: in definition of macro 'GET_CODE'
#define GET_CODE(RTX) ((enum rtx_code) (RTX)->code)
^~~
../../gcc/rtl.h:1298:28: note: in expansion of macro 'RTVEC_ELT'
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
^~~~~~~~~
../../gcc/combine.c:11088:21: note: in expansion of macro 'XVECEXP'
if (GET_CODE (XVECEXP (pat, 0, i)) == CLOBBER
^~~~~~~
../../gcc/rtl.h:1076:17: error: assuming signed overflow does not occur when
assuming that (X - c) > X is always false [-Werror=strict-overflow]
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
^
../../gcc/rtl.h:702:45: note: in definition of macro 'GET_CODE'
#define GET_CODE(RTX) ((enum rtx_code) (RTX)->code)
^~~
../../gcc/rtl.h:1298:28: note: in expansion of macro 'RTVEC_ELT'
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
^~~~~~~~~
../../gcc/combine.c:11088:21: note: in expansion of macro 'XVECEXP'
if (GET_CODE (XVECEXP (pat, 0, i)) == CLOBBER
^~~~~~~
../../gcc/rtl.h:1076:17: error: assuming signed overflow does not occur when
assuming that (X - c) > X is always false [-Werror=strict-overflow]
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
^
../../gcc/rtl.h:702:45: note: in definition of macro 'GET_CODE'
#define GET_CODE(RTX) ((enum rtx_code) (RTX)->code)
^~~
../../gcc/rtl.h:1298:28: note: in expansion of macro 'RTVEC_ELT'
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
^~~~~~~~~
../../gcc/combine.c:11088:21: note: in expansion of macro 'XVECEXP'
if (GET_CODE (XVECEXP (pat, 0, i)) == CLOBBER
^~~~~~~
More of the same errors follow. A simple "make bootstrap" works fine.
The build (actually the SRCRPM from OBS with updated sources) was configured
like that:
CFLAGS='-O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -funwind-tables
-fasynchronous-unwind-tables -U_FORTIFY_SOURCE'
CXXFLAGS='-O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -funwind-tables
-fasynchronous-unwind-tables -U_FORTIFY_SOURCE'
XCFLAGS='-O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -funwind-tables
-fasynchronous-unwind-tables -U_FORTIFY_SOURCE'
TCFLAGS='-O2 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -funwind-tables
-fasynchronous-unwind-tables -U_FORTIFY_SOURCE'
../configure CC=gcc-6 CXX=g++-6 --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,go --enable-checking=yes,rtl
--with-gxx-include-dir=/usr/include/c++/7 --enable-ssp --disable-libssp
--disable-libvtv --disable-libcc1 --disable-plugin
--with-bugurl=http://bugs.opensuse.org/ '--with-pkgversion=SUSE Linux'
--with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--with-default-libstdcxx-abi=gcc4-compatible
--enable-version-specific-runtime-libs --enable-linker-build-id
--enable-linux-futex --enable-gnu-indirect-function --program-suffix=-7
--without-system-libunwind --enable-multilib --with-arch-32=x86-64
--with-tune=generic --build=x86_64-suse-linux --host=x86_64-suse-linux
make profiledbootstrap STAGE1_CFLAGS=-g 'BOOT_CFLAGS=-O2 -g -fmessage-length=0
-D_FORTIFY_SOURCE=2 -funwind-tables -fasynchronous-unwind-tables
-U_FORTIFY_SOURCE'
>From gcc-bugs-return-547011-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 11:25:35 2016
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From: "wilco at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
Date: Thu, 08 Dec 2016 11:25:00 -0000
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wilco at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |wilco at gcc dot gnu.org
--- Comment #8 from wilco at gcc dot gnu.org ---
(In reply to James Greenhalgh from comment #7)
> (In reply to Matthias Klose from comment #6)
> > yes, I'm configuring with --enable-fix-cortex-a53-843419
>
> And running the testsuite with -mfix-cortex-a53-843419 shows the failures.
>
> So the problem is visible with either -mcmodel=tiny or
> -mfix-cortex-a53-843419
It's -mpc-relative-literal-loads (which is set by both). There is an issue in
aarch64_classify_address that doesn't correctly identify TI/TFmode as possible
LDP/STP instructions. I'm testing a fix.
>From gcc-bugs-return-547012-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:09:01 2016
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Subject: [Bug libstdc++/71856] [6/7 Regression] _GLIBCXX_DEBUG-mode breaks GNU parallel extension
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--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Dec 8 12:08:14 2016
New Revision: 243434
URL: https://gcc.gnu.org/viewcvs?rev=243434&root=gcc&view=rev
Log:
PR71856 try to fix Parallel Mode assertions again
PR libstdc++/71856
* doc/xml/manual/using.xml: Document macro.
* include/bits/c++config [_GLIBCXX_DEBUG || _GLIBCXX_PARALLEL]
(__glibcxx_assert): Rename to __glibcxx_assert_impl.
[_GLIBCXX_DEBUG] (__glibcxx_assert): Expand to __glibcxx_assert_impl.
* include/parallel/base.h [_GLIBCXX_PARALLEL_ASSERTIONS]
(_GLIBCXX_PARALLEL_ASSERT): Expand to __glibcxx_assert_impl.
[!_GLIBCXX_PARALLEL_ASSERTIONS] (_GLIBCXX_PARALLEL_ASSERT): Define as
empty.
* testsuite/25_algorithms/headers/algorithm/
parallel_algorithm_assert2.cc: New test.
Added:
trunk/libstdc++-v3/testsuite/25_algorithms/headers/algorithm/parallel_algorithm_assert2.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/doc/xml/manual/using.xml
trunk/libstdc++-v3/include/bits/c++config
trunk/libstdc++-v3/include/parallel/base.h
>From gcc-bugs-return-547013-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:28:55 2016
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From: "erika.molnar at cyberthorstudios dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/78736] New: enum warnings in GCC
Date: Thu, 08 Dec 2016 12:28:00 -0000
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Bug ID: 78736
Summary: enum warnings in GCC
Product: gcc
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Hi,
This is not a bug but when compiling with gcc-6.2 the following code:
*******
#include <stdio.h>
typedef enum {brandon, jon, mitch} name_t;
typedef enum {fred, dog, cat} name2_t;
name2_t name = brandon;
name_t hik = 3;
int hal_entry(void)
{
if (hik < name)
return(0);
return 1;
}
int main ()
{
printf ("%d\n", hal_entry());
return 0;
}
*******
There is no warning about the enum(which is correct in C) however when I
compile the same code with a different/proprietary compiler I get the following
warning:
W0511180:The evaluation period has expired.
../src/cc.c(33):W0520188:Enumerated type mixed with another type
../src/cc.c(34):W0520188:Enumerated type mixed with another type
Would you consider implementing such a warning in GCC?
__
Thank you,
Erika Molnar
>From gcc-bugs-return-547014-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:29:26 2016
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Subject: [Bug middle-end/78716] [7 Regression] ICE in gimplify_va_arg_expr, at gimplify.c:12650 (i686-linux-gnu)
Date: Thu, 08 Dec 2016 12:29:00 -0000
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>From gcc-bugs-return-547015-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:32:39 2016
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Subject: [Bug c/78736] enum warnings in GCC
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--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
We already have -Wenum-compare if that's what you want.
>From gcc-bugs-return-547016-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:41:56 2016
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Subject: [Bug libstdc++/77459] [6 Regression] undefined reference to `snprintf' when building mingw-w64 cross-compiler
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--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Dec 8 12:40:58 2016
New Revision: 243435
URL: https://gcc.gnu.org/viewcvs?rev=243435&root=gcc&view=rev
Log:
PR77459 avoid snprintf for debug mode diagnostics
Backport from mainline
2016-11-10 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/77459
* src/c++11/debug.cc (format_word): Delete.
(print_literal): New. Replace call to print_word for literals.
Modified:
branches/gcc-6-branch/libstdc++-v3/ChangeLog
branches/gcc-6-branch/libstdc++-v3/src/c++11/debug.cc
>From gcc-bugs-return-547017-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:41:56 2016
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/71856] [6/7 Regression] _GLIBCXX_DEBUG-mode breaks GNU parallel extension
Date: Thu, 08 Dec 2016 12:41:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71856
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Dec 8 12:41:07 2016
New Revision: 243436
URL: https://gcc.gnu.org/viewcvs?rev=243436&root=gcc&view=rev
Log:
PR71856 try to fix Parallel Mode assertions again
PR libstdc++/71856
* doc/xml/manual/using.xml: Document macro.
* include/bits/c++config [_GLIBCXX_DEBUG || _GLIBCXX_PARALLEL]
(__glibcxx_assert): Rename to __glibcxx_assert_impl.
[_GLIBCXX_DEBUG] (__glibcxx_assert): Expand to __glibcxx_assert_impl.
* include/parallel/base.h [_GLIBCXX_PARALLEL_ASSERTIONS]
(_GLIBCXX_PARALLEL_ASSERT): Expand to __glibcxx_assert_impl.
[!_GLIBCXX_PARALLEL_ASSERTIONS] (_GLIBCXX_PARALLEL_ASSERT): Define as
empty.
* testsuite/25_algorithms/headers/algorithm/
parallel_algorithm_assert2.cc: New test.
Added:
branches/gcc-6-branch/libstdc++-v3/testsuite/25_algorithms/headers/algorithm/parallel_algorithm_assert2.cc
Modified:
branches/gcc-6-branch/libstdc++-v3/ChangeLog
branches/gcc-6-branch/libstdc++-v3/doc/xml/manual/using.xml
branches/gcc-6-branch/libstdc++-v3/include/bits/c++config
branches/gcc-6-branch/libstdc++-v3/include/parallel/base.h
>From gcc-bugs-return-547019-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:42:40 2016
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/77459] [6 Regression] undefined reference to `snprintf' when building mingw-w64 cross-compiler
Date: Thu, 08 Dec 2016 12:42:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 6.3
>From gcc-bugs-return-547018-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:42:18 2016
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/71856] [6/7 Regression] _GLIBCXX_DEBUG-mode breaks GNU parallel extension
Date: Thu, 08 Dec 2016 12:42:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 6.3
>From gcc-bugs-return-547020-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:48:17 2016
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/61767] [OOP] ICE in generate_finalization_wrapper at fortran/class.c:1491
Date: Thu, 08 Dec 2016 12:48:00 -0000
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--- Comment #10 from janus at gcc dot gnu.org ---
(In reply to janus from comment #9)
> Thus: The patch in comment #7 should be discarded, and comment #5 is the way
> to go here.
I just realized that also comment #5 is not fully correct. Instead the problem
originates from a different place: The function 'has_finalizer_component' is
buggy and can be fixed like this ...
Index: gcc/fortran/class.c
===================================================================
--- gcc/fortran/class.c (revision 243433)
+++ gcc/fortran/class.c (working copy)
@@ -841,20 +841,19 @@ has_finalizer_component (gfc_symbol *derived)
gfc_component *c;
for (c = derived->components; c; c = c->next)
- {
- if (c->ts.type == BT_DERIVED && c->ts.u.derived->f2k_derived
- && c->ts.u.derived->f2k_derived->finalizers)
- return true;
+ if (c->ts.type == BT_DERIVED && !c->attr.pointer && !c->attr.allocatable)
+ {
+ if (c->ts.u.derived->f2k_derived
+ && c->ts.u.derived->f2k_derived->finalizers)
+ return true;
- /* Stop infinite recursion through this function by inhibiting
- calls when the derived type and that of the component are
- the same. */
- if (c->ts.type == BT_DERIVED
- && !gfc_compare_derived_types (derived, c->ts.u.derived)
- && !c->attr.pointer && !c->attr.allocatable
- && has_finalizer_component (c->ts.u.derived))
- return true;
- }
+ /* Stop infinite recursion through this function by inhibiting
+ calls when the derived type and that of the component are
+ the same. */
+ if (!gfc_compare_derived_types (derived, c->ts.u.derived)
+ && has_finalizer_component (c->ts.u.derived))
+ return true;
+ }
return false;
}
>From gcc-bugs-return-547021-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 12:53:56 2016
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Subject: [Bug c/78736] enum warnings in GCC
Date: Thu, 08 Dec 2016 12:53:00 -0000
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And it's included in -Wall
>From gcc-bugs-return-547022-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:22:44 2016
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Subject: [Bug middle-end/78720] [7 Regression] Illegal instruction in generated code
Date: Thu, 08 Dec 2016 13:22:00 -0000
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |7.0
>From gcc-bugs-return-547023-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:39:30 2016
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |tree-optimization
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
From:
void foo() ()
{
signed char var_13.0_1;
signed char _2;
int _3;
int _4;
int _5;
long int _6;
<bb 2> [0.0%]:
var_13.0_1 = var_13;
_2 = var_13.0_1 >> -14;
_3 = (int) _2;
_4 = _3 & 2097152;
_5 = 1 % _4;
_6 = (long int) _5;
rrr = _6;
return;
}
To (ccp1):
void foo() ()
{
signed char var_13.0_1;
int _5;
long int _6;
<bb 2> [0.0%]:
var_13.0_1 = var_13;
_5 = 1 % 0;
_6 = (long int) _5;
rrr = _6;
return;
}
>From gcc-bugs-return-547025-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:46:01 2016
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/67807] [5/6/7 Regression] call to public member function catalog failed on Linux -std=c++03
Date: Thu, 08 Dec 2016 13:46:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The testcase doesn't show any problem, and nothing fails as claimed.
The return value 1 does not mean opening the catalog failed, it is not an error
code, it's a handle for a catalog. After calling do_open() twice you have two
different handles (which happen to refer to the same catalog, but that's beside
the point).
The behaviour you see is conforming, and not a bug.
>From gcc-bugs-return-547024-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:46:01 2016
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From: "joseph at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/78666] conflicting attribute alloc_size accepted
Date: Thu, 08 Dec 2016 13:46:00 -0000
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--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Multiple format attributes for the same function, naming different
arguments as a format string, are perfectly valid; they mean the function
uses multiple format strings (each of which has to match the arguments
indicated by the attribute).
>From gcc-bugs-return-547026-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:56:00 2016
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
Date: Thu, 08 Dec 2016 13:56:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Already the >> -14 looks wrong.
>From gcc-bugs-return-547027-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 13:56:00 2016
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Subject: [Bug ipa/77674] [7 Regression] ICE in binds_to_current_def_p with -fkeep-inline-functions
Date: Thu, 08 Dec 2016 13:56:00 -0000
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--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I am testing the following:
Index: symtab.c
===================================================================
--- symtab.c (revision 243291)
+++ symtab.c (working copy)
@@ -2214,6 +2214,8 @@ symtab_node::binds_to_current_def_p (sym
{
if (!definition)
return false;
+ if (transparent_alias)
+ return symtab_node::binds_to_current_def_p (get_alias_target ());
if (decl_binds_to_current_def_p (decl))
return true;
>From gcc-bugs-return-547028-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 15:14:52 2016
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Subject: [Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40281
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40281&action=edit
gcc7-pr78726.patch
Untested fix.
>From gcc-bugs-return-547029-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 15:32:46 2016
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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--- Comment #9 from wilco at gcc dot gnu.org ---
Patch posted: https://gcc.gnu.org/ml/gcc-patches/2016-12/msg00653.html
>From gcc-bugs-return-547030-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 15:45:58 2016
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/78666] conflicting attribute alloc_size accepted
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--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
They sure are! (We should document it.)
But what is specifying multiple declarations of the same function with
different sets of attributes supposed to mean? Is it supposed to apply the
union of all of them? How should conflicts be resolved? Should the rules be
expected to be consistent across attributes with different names?
FWIW, I would be inclined to accept just the set of attributes on the first
declaration and ignore all the others (with a warning), and give an error on
conflicts in the same declaration.
Alternatively, take a union of non-conflicting attributes across all
declarations and warn about conflicts. This would suffer from the problem that
if the function were called after only a subset of its declarations were seen
only the set of attributes seen so far would likely apply (and it would likely
change with optimization and inlining.)
>From gcc-bugs-return-547031-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 15:52:08 2016
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From: "damian at sourceryinstitute dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/78737] New: linking error with deferred, undefined user-defined derived-type I/O
Date: Thu, 08 Dec 2016 15:52:00 -0000
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Bug ID: 78737
Summary: linking error with deferred, undefined user-defined
derived-type I/O
Product: gcc
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A linking error results when an abstract type defers a user-defined derived
type output binding that is not implemented anywhere in the program:
$ cat undefined-ud-dtio.f90
module object_interface
type, abstract :: object
contains
procedure(write_formatted_interface), deferred ::write_formatted
generic :: write(formatted)=>write_formatted
end type
abstract interface
subroutine write_formatted_interface(this,unit,iotype,vlist,iostat,iomsg)
import object
class(object), intent(in) :: this
integer, intent(in) :: unit
character (len=*), intent(in) :: iotype
integer, intent(in) :: vlist(:)
integer, intent(out) :: iostat
character (len=*), intent(inout) :: iomsg
end subroutine
end interface
contains
subroutine assert(a)
class(object):: a
write(*,*) a
end subroutine
end module
end
$ gfortran undefined-ud-dtio.f90
Undefined symbols for architecture x86_64:
"_write_formatted_interface_", referenced from:
___object_interface_MOD_assert in ccMQHXbf.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
rouson@localhost:~/xfr$ gfortran --version
GNU Fortran (MacPorts gcc7 7-20161127_0) 7.0.0 20161127 (experimental)
Adding a type that defines the binding eliminates the linking error.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78264] [7 regression] ICE in build_noexcept_spec, at cp/except.c:1196
Date: Thu, 08 Dec 2016 15:52:00 -0000
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--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Author: ebotcazou
Date: Thu Dec 8 15:52:11 2016
New Revision: 243443
URL: https://gcc.gnu.org/viewcvs?rev=243443&root=gcc&view=rev
Log:
PR libstdc++/78264
* include/bits/c++config (_GLIBCXX_NOEXCEPT_PARM): Turn _N into _NE.
(_GLIBCXX_NOEXCEPT_QUAL): Likewise.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/c++config
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Subject: [Bug libstdc++/78264] [7 regression] ICE in build_noexcept_spec, at cp/except.c:1196
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Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
.
>From gcc-bugs-return-547034-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 15:56:28 2016
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Subject: [Bug target/78695] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu
Date: Thu, 08 Dec 2016 15:56:00 -0000
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--- Comment #8 from Matthias Klose <doko at gcc dot gnu.org> ---
still seen with r243430, but you need -fstack-protector or
-fstack-protector-strong
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Subject: [Bug target/78695] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
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--- Comment #9 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Confirmed with -fstack-protector:
Program received signal SIGSEGV, Segmentation fault.
0x0000000010cf2918 in find_alignment_op (insn=0x3fffaf641a00,
base_reg=0x3fffaf580300) at ../../gcc/gcc/config/rs6000/rs6000.c:41445
41445 rtx_insn *and_insn = DF_REF_INSN (base_def_link->ref);
(gdb) l
41440
41441 struct df_link *base_def_link = DF_REF_CHAIN (base_use);
41442 if (!base_def_link || base_def_link->next)
41443 break;
41444
41445 rtx_insn *and_insn = DF_REF_INSN (base_def_link->ref);
41446 and_operation = alignment_mask (and_insn);
41447 if (and_operation != 0)
41448 break;
41449 }
(gdb) p base_def_link->ref->base->insn_info
$1 = (df_insn_info *) 0x0
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Subject: [Bug target/78695] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu
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--- Comment #10 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Excellent, thanks.
I am out of the office today but will have a look at this tomorrow.
>From gcc-bugs-return-547037-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 16:23:31 2016
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Subject: [Bug libstdc++/42679] RTLD_DEEPBIND dlopen option for shared library that uses libstdc++ std::ostream crashes
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maemarcus at gmail dot com changed:
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CC| |maemarcus at gmail dot com
--- Comment #23 from maemarcus at gmail dot com ---
FWIW, I came across this issue with SEGFAULT in cerr on g++ 4.8.5.
Interestingly, cout in the same time works fine. Got resolved either by
removing RTLD_DEEPBIND, or by adding -static-libstdc++ to link line. Hint on
adding -fPIC was not helpful, as it is already added everywhere.
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b5af40 in std::ostream::sentry::sentry (this=0x7fffffffcf10,
__os=...)
at
/build/gcc-4.8-Iyjgor/gcc-4.8-4.8.5/build/x86_64-linux-gnu/libstdc++-v3/include/bits/ostream.tcc:51
51 if (__os.tie() && __os.good())
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Subject: [Bug rtl-optimization/78738] New: [7 Regression] ICE in extract_insn, at recog.c:2311
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78738
Bug ID: 78738
Summary: [7 Regression] ICE in extract_insn, at recog.c:2311
Product: gcc
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seen with r243219 on i686-linux-gnu, either omitting the -std=c99 or
-ffast-math works around it:
$ cat fractal_cache.i
double a;
long double roundl();
void b() {
int c = roundl(a);
b(c);
}
$ gcc -c -O2 -std=c99 -ffast-math fractal_cache.i
fractal_cache.i: In function 'b':
fractal_cache.i:6:1: error: unrecognizable insn:
}
^
(insn 10 9 11 2 (set (reg:DF 93)
(plus:DF (reg:DF 92)
(reg:DF 95))) "fractal_cache.i":4 -1
(nil))
fractal_cache.i:6:1: internal compiler error: in extract_insn, at recog.c:2311
0x85c48cf _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../src/gcc/rtl-error.c:108
0x85c490c _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../src/gcc/rtl-error.c:116
0x8596890 extract_insn(rtx_insn*)
../../src/gcc/recog.c:2311
0x83eb32d instantiate_virtual_regs_in_insn
../../src/gcc/function.c:1589
0x83eb32d instantiate_virtual_regs
../../src/gcc/function.c:1956
0x83eb32d execute
../../src/gcc/function.c:2005
Please submit a full bug report,
with preprocessed source if appropriate.
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Subject: [Bug rtl-optimization/78738] [7 Regression] ICE in extract_insn, at recog.c:2311
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--- Comment #1 from Matthias Klose <doko at gcc dot gnu.org> ---
Created attachment 40282
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40282&action=edit
preprocessed source
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/66544] [F03] ICE on function with procedure-pointer result in combination with implicit none
Date: Thu, 08 Dec 2016 17:13:00 -0000
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--- Comment #8 from janus at gcc dot gnu.org ---
(In reply to janus from comment #4)
> Btw, I don't fully understand why "implicit none" should make any difference
> here.
The problem is that we simply do not know which typespec to give to 'z' (and
thus to 'f'), therefore it stays with BT_UNKNOWN which causes the ICE. When
omitting the 'implicit none', the symbols get typed implicitly, which is not
really correct either.
If you believe it's valid, one could hack around the ICE using BT_VOID or so:
Index: resolve.c
===================================================================
--- resolve.c (revision 243433)
+++ resolve.c (working copy)
@@ -220,6 +220,8 @@ resolve_procedure_interface (gfc_symbol *sym)
sym->attr.class_ok = ifc->result->attr.class_ok;
sym->as = gfc_copy_array_spec (ifc->result->as);
sym->result = sym;
+ if (sym->ts.type == BT_UNKNOWN && ifc->result->attr.proc_pointer)
+ sym->ts.type = BT_VOID;
}
else
{
But that's certainly not a very nice and clean solution and I have no idea if
it would produce the expected results at runtime.
I'm still a bit doubtful if it's really valid. Are there any other compilers
which accept such a construct?
>From gcc-bugs-return-547041-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:30:27 2016
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Subject: [Bug fortran/69398] [OOP] ICE on class with duplicate dimension attribute specified
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--- Comment #4 from janus at gcc dot gnu.org ---
Note that we also have a rejects-valid problem with the following code:
program p
type t
end type
class(t), allocatable :: z
target :: z(:)
allocate (z(2))
end
which is rejected with:
allocate (z(2))
1
Error: Syntax error in ALLOCATE statement at (1)
The problem is that the class container is built too early (and thus we build a
container for a scalar class variable).
>From gcc-bugs-return-547042-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:37:56 2016
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Pádraig Brady <P at draigBrady dot com> changed:
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----------------------------------------------------------------------------
CC| |P at draigBrady dot com
--- Comment #13 from Pádraig Brady <P at draigBrady dot com> ---
It would be good to have this backported to the 5 branch.
thanks
>From gcc-bugs-return-547043-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:47:53 2016
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Subject: [Bug fortran/69860] ICE on missing end apostrophe with character(kind=4)
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--- Comment #15 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Confirmed, this ICE is now completely gone on my environment.
>From gcc-bugs-return-547044-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:50:26 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/68439] ICE in alloc_scalar_allocatable_for_subcomponent_assignment, at fortran/trans-expr.c:6711
Date: Thu, 08 Dec 2016 17:50:00 -0000
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Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #4 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Should compile with no error, it's legal F2008 :
If an allocatable component has no corresponding component-data-source,
then that component has an allocation status of unallocated.
Because this ICE is gone and runtime behaviour is similar to that
described in pr68225, it can now be regarded as a subcase/duplicate.
*** This bug has been marked as a duplicate of bug 68225 ***
>From gcc-bugs-return-547046-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:50:28 2016
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Subject: [Bug fortran/68241] [meta-bug] [F03] Deferred-length character
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Bug 68241 depends on bug 68439, which changed state.
Bug 68439 Summary: ICE in alloc_scalar_allocatable_for_subcomponent_assignment, at fortran/trans-expr.c:6711
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68439
What |Removed |Added
----------------------------------------------------------------------------
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Subject: [Bug fortran/68225] ICE with -Wrealloc-lhs-all on structure constructor with allocatable scalar component(s)
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--- Comment #7 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
*** Bug 68439 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-547048-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:54:13 2016
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From: "jason at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/71913] [5/6/7 Regression] Missing copy elision with operator new
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--- Comment #14 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Pádraig Brady from comment #13)
> It would be good to have this backported to the 5 branch.
What do you mean? I applied the bug fix to the 5 branch back in July (comment
#7), and the testcase fix was applied in August.
>From gcc-bugs-return-547047-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 17:54:02 2016
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Subject: [Bug fortran/68225] ICE with -Wrealloc-lhs-all on structure constructor with allocatable scalar component(s)
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--- Comment #8 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Addendum :
$ cat zzp.f90
program p
type t
integer :: a
character(:), allocatable :: c
end type
type(t) :: x
x = t(a=1) ; print *, x%a, x%c
x = t(a=2, c=null()) ; print *, x%a, x%c
x = t(c=null(), a=3) ; print *, x%a, x%c
x = t(a=4, c='c4') ; print *, x%a, x%c
x = t(a=5) ; print *, x%a, x%c
x = t(6, 'c6') ; print *, x%a, x%c
x = t(c='c7', a=7) ; print *, x%a, x%c
x = t(c=null(), a=8) ; print *, x%a, x%c
x = t(9, c='c9') ; print *, x%a, x%c
x = t(10, null()) ; print *, x%a, x%c
x = t(11, 'c11') ; print *, x%a, x%c
x = t(12) ; print *, x%a, x%c
end
$ gfortran-7-20161204 -O2 zzp.f90
$ a.out
1
2
3
4 c4
5
6 c6
7 c7
8
9 c9
10
11 c11
12
Compiling with -O0 or -Og :
$ gfortran-7-20161204 -g -O0 -Wall -fcheck=all zzp.f90
$ a.out
1
2
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
#0 0x2ad486c4711f in ???
#1 0x2ad486ca38ee in ???
#2 0x410f1a in list_formatted_write_scalar
at ../../../libgfortran/io/write.c:1887
#3 0x4023d7 in p
at .../zzp.f90:9
#4 0x402e53 in main
at .../zzp.f90:19
Segmentation fault
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From: "P at draigBrady dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/71913] [5/6/7 Regression] Missing copy elision with operator new
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--- Comment #15 from Pádraig Brady <P at draigBrady dot com> ---
Actually it is backported to 5.
So it would be good to set the "Target Milestone" to 5.5
so this is obvious from this bug and from the list of bugs fixed in 5.5
https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&list_id=166767&resolution=FIXED&target_milestone=5.5
thanks!
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Subject: [Bug c++/71913] [5/6/7 Regression] Missing copy elision with operator new
Date: Thu, 08 Dec 2016 18:01:00 -0000
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--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Pádraig Brady from comment #15)
> So it would be good to set the "Target Milestone" to 5.5
But it was also fixed for 4.9.4, so that's what the target milestone says.
You can't reliably use that query for "bugs fixed in 5.5" because it doesn't
find bugs fixed in (for example) both 4.9.4 and 5.5
And if we set the milestone to 5.5 you would just have the same problem trying
to find bugs fixed in 4.9.4
>From gcc-bugs-return-547051-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:02:03 2016
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From: "gerhard.steinmetz.fortran@t-online.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78739] New: ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1477
Date: Thu, 08 Dec 2016 18:02:00 -0000
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Bug ID: 78739
Summary: ICE in gfc_get_symbol_decl, at
fortran/trans-decl.c:1477
Product: gcc
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A tiny snippet of _invalid_ code, ICEs down to at least 4.8.
Backtrace similar to that of pr68846 comment 4 and pr70864 comment 3.
$ cat z1.f90
function f(n)
f() = n
end
$ gfortran-7-20161204 -c z1.f90
z1.f90:1:0:
function f(n)
internal compiler error: in gfc_get_symbol_decl, at fortran/trans-decl.c:1477
0x75a352 gfc_get_symbol_decl(gfc_symbol*)
../../gcc/fortran/trans-decl.c:1477
0x75e5b7 generate_local_decl
../../gcc/fortran/trans-decl.c:5327
0x71825b do_traverse_symtree
../../gcc/fortran/symbol.c:3994
0x75f412 generate_local_vars
../../gcc/fortran/trans-decl.c:5527
0x75f412 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6206
0x6e73d0 translate_all_program_units
../../gcc/fortran/parse.c:6038
0x6e73d0 gfc_parse_file()
../../gcc/fortran/parse.c:6238
0x72b182 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:202
>From gcc-bugs-return-547052-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:04:29 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug testsuite/78740] New: test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
Date: Thu, 08 Dec 2016 18:04:00 -0000
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Bug ID: 78740
Summary: test case powerpc/pr78691-ppc.c fails starting with
its introduction in r243335
Product: gcc
Version: 7.0
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This fails on LE and probably just needs a test case change to restrict where
it runs.
spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.target/powerpc/pr78691-ppc.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -Os -m32 -S -o
pr78691-ppc.s
cc1: error: -m32 not supported in this configuration
compiler exited with status 1
output is:
cc1: error: -m32 not supported in this configuration
FAIL: gcc.target/powerpc/pr78691-ppc.c (test for excess errors)
Excess errors:
cc1: error: -m32 not supported in this configuration
>From gcc-bugs-return-547053-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:07:09 2016
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Subject: [Bug fortran/69860] ICE on missing end apostrophe with character(kind=4)
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----------------------------------------------------------------------------
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Target Milestone|--- |7.0
--- Comment #16 from janus at gcc dot gnu.org ---
(In reply to Gerhard Steinmetz from comment #15)
> Confirmed, this ICE is now completely gone on my environment.
Great! Closing.
>From gcc-bugs-return-547054-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:09:40 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78741] New: ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1534
Date: Thu, 08 Dec 2016 18:09:00 -0000
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Bug ID: 78741
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With invalid code (symbol "g" name clash), down to at least 4.8.
$ cat z1.f90
subroutine s(n, x)
integer :: n
character(n) :: x
character, pointer :: z(:)
x = 'a'
return
entry g(n, x)
x = 'b'
contains
subroutine g
z(1) = x(1:1)
end
end
$ gfortran-7-20161204 -c z1.f90
z1.f90:11:0:
z(1) = x(1:1)
internal compiler error: in gfc_get_symbol_decl, at fortran/trans-decl.c:1534
0x75b49a gfc_get_symbol_decl(gfc_symbol*)
../../gcc/fortran/trans-decl.c:1533
0x7731af gfc_conv_variable
../../gcc/fortran/trans-expr.c:2494
0x76ee42 gfc_conv_expr(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-expr.c:7771
0x7789e2 gfc_trans_assignment_1
../../gcc/fortran/trans-expr.c:9821
0x72e687 trans_code
../../gcc/fortran/trans.c:1790
0x75f708 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6271
0x75f557 gfc_generate_contained_functions
../../gcc/fortran/trans-decl.c:5251
0x75f557 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6200
0x6e73d0 translate_all_program_units
../../gcc/fortran/parse.c:6038
0x6e73d0 gfc_parse_file()
../../gcc/fortran/parse.c:6238
0x72b182 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:202
>From gcc-bugs-return-547055-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:30:47 2016
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Subject: [Bug fortran/69398] [OOP] ICE on class with duplicate dimension attribute specified
Date: Thu, 08 Dec 2016 18:30:00 -0000
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----------------------------------------------------------------------------
CC| |pault at gcc dot gnu.org
--- Comment #5 from janus at gcc dot gnu.org ---
(In reply to janus from comment #4)
> The problem is that the class container is built too early (and thus we
> build a container for a scalar class variable).
To fix this, we have the following options:
1) "Rebuild" the class container when the relevant attributes change (such as
DIMENSION). That is probably the simplest solution, but a bit inefficient,
since we build containers that we don't need.
2) Or: Defer the container building to resolution stage, at least for scalar
class variables, since we don't know if a dimension declaration follows
somewhere after the class declaration. This might be a bit more tricky.
3) Defer the container building to resolution stage for all class variables, no
matter if it would be possible earlier. This might be the cleanest solution,
but might require major reworking of CLASS-specific code.
>From gcc-bugs-return-547056-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 18:34:52 2016
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Subject: [Bug c++/78551] [5/6/7 Regression] Internal compiler error with constexpr initialization of union
Date: Thu, 08 Dec 2016 18:34:00 -0000
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--- Comment #12 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Thu Dec 8 18:34:04 2016
New Revision: 243448
URL: https://gcc.gnu.org/viewcvs?rev=243448&root=gcc&view=rev
Log:
PR c++/78551
* constexpr.c (extract_string_elt): New. Broken out of ...
(cxx_eval_array_reference): ... here. Call it.
(cxx_eval_store_expression): Convert init by STRING_CST into
CONSTRUCTOR, if needed.
PR c++/78551
* g++.dg/cpp1y/pr78551.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp1y/pr78551.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/constexpr.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug c++/78551] [5/6/7 Regression] Internal compiler error with constexpr initialization of union
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78551
--- Comment #13 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Thu Dec 8 18:37:03 2016
New Revision: 243451
URL: https://gcc.gnu.org/viewcvs?rev=243451&root=gcc&view=rev
Log:
PR c++/78551
* constexpr.c (extract_string_elt): New. Broken out of ...
(cxx_eval_array_reference): ... here. Call it.
(cxx_eval_store_expression): Convert init by STRING_CST into
CONSTRUCTOR, if needed.
PR c++/78551
* g++.dg/cpp1y/pr78551.C: New.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/pr78551.C
Modified:
branches/gcc-6-branch/gcc/cp/ChangeLog
branches/gcc-6-branch/gcc/cp/constexpr.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog
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From: "joseph at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/78666] conflicting attribute alloc_size accepted
Date: Thu, 08 Dec 2016 18:50:00 -0000
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--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
On Thu, 8 Dec 2016, msebor at gcc dot gnu.org wrote:
> But what is specifying multiple declarations of the same function with
> different sets of attributes supposed to mean? Is it supposed to apply the
> union of all of them? How should conflicts be resolved? Should the rules be
> expected to be consistent across attributes with different names?
It should be the result of merging them (taking the union), with conflicts
diagnosed. What conflicts depends on the attribute in question. We have
e.g. the comp_type_attributes hook for targets to use to detect conflicts
(which x86 uses for regparm and other calling convention attributes).
Note that glibc relies on being able to apply both attributes (hidden
visibility, at least) and asm renaming to built-in functions after their
built-in and explicit declarations (see include/string.h).
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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/78738] [7 Regression] ICE in extract_insn, at recog.c:2311
Date: Thu, 08 Dec 2016 18:59:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-08
CC| |jgreenhalgh at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Looks like the effect of excess_precision changes.
In i386.h, we define:
/* Whether to allow x87 floating-point arithmetic on MODE (one of
SFmode, DFmode and XFmode) in the current excess precision
configuration. */
#define X87_ENABLE_ARITH(MODE) \
(flag_excess_precision == EXCESS_PRECISION_FAST || (MODE) == XFmode)
/* Likewise, whether to allow direct conversions from integer mode
IMODE (HImode, SImode or DImode) to MODE. */
#define X87_ENABLE_FLOAT(MODE, IMODE) \
(flag_excess_precision == EXCESS_PRECISION_FAST \
|| (MODE) == XFmode \
|| ((MODE) == DFmode && (IMODE) == SImode) \
|| (IMODE) == HImode)
and relevant pattern in i386.md:
(define_insn "*fop_<mode>_comm"
[(set (match_operand:MODEF 0 "register_operand" "=f,x,v")
(match_operator:MODEF 3 "binary_fp_operator"
[(match_operand:MODEF 1 "nonimmediate_operand" "%0,0,v")
(match_operand:MODEF 2 "nonimmediate_operand" "fm,xm,vm")]))]
"((SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| (TARGET_80387 && X87_ENABLE_ARITH (<MODE>mode)))
&& COMMUTATIVE_ARITH_P (operands[3])
&& !(MEM_P (operands[1]) && MEM_P (operands[2]))"
The testcase generates the insn from ix86_emit_i387_round, where
flag_excess_precision is set to EXCESS_PRECISION_STANDARD.
IMO, we want to set flag_excess_precision to EXCESS_PRECISION_FAST for
-ffast-math.
Confirmed, CC author of the patch.
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Subject: [Bug rtl-optimization/78738] [7 Regression] ICE in extract_insn, at recog.c:2311
Date: Thu, 08 Dec 2016 19:08:00 -0000
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--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Following patch fixes the failure:
--cut here--
Index: toplev.c
===================================================================
--- toplev.c (revision 243444)
+++ toplev.c (working copy)
@@ -1691,6 +1691,8 @@ init_excess_precision (void)
{
gcc_assert (flag_excess_precision_cmdline != EXCESS_PRECISION_DEFAULT);
flag_excess_precision = flag_excess_precision_cmdline;
+ if (flag_unsafe_math_optimizations)
+ flag_excess_precision = EXCESS_PRECISION_FAST;
}
/* Initialize things that are both lang-dependent and target-dependent.
--cut here--
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Subject: [Bug other/78252] C++ demangler crashes with infinite recursion with lambda (auto)
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Paul Brannan <curlypaul924 at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |curlypaul924 at gmail dot com
--- Comment #4 from Paul Brannan <curlypaul924 at gmail dot com> ---
I can confirm Nathan's patch fixes the crash I was seeing with
_ZSt7forwardIRZN3Foo3BarEvEUlRT_iE_EOS1_RNSt16remove_referenceIS1_E4typeE
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From: "wilco at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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--- Comment #10 from wilco at gcc dot gnu.org ---
Author: wilco
Date: Thu Dec 8 19:18:33 2016
New Revision: 243456
URL: https://gcc.gnu.org/viewcvs?rev=243456&root=gcc&view=rev
Log:
This patch fixes an issue in aarch64_classify_address. TImode and TFmode
can either use a 64-bit LDP/STP or 128-bit LDR/STR. The addressing mode
must be carefully modelled as the intersection of both. This is done for
the immediate offsets, however load_store_pair_p must be set as well to
avoid LDP with a PC-relative address if aarch64_pcrelative_literal_loads
is true.
gcc/
PR target/78733
* config/aarch64/aarch64.c (aarch64_classify_address):
Set load_store_pair_p for TImode and TFmode.
testsuite/
* gcc.target/aarch64/pr78733.c: New test.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/aarch64/aarch64.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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wilco at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #11 from wilco at gcc dot gnu.org ---
Fixed in r243456.
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Subject: [Bug c++/78551] [5/6/7 Regression] Internal compiler error with constexpr initialization of union
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Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #15 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Fixed on 5, 6 & HEAD
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Subject: [Bug c++/78551] [5/6/7 Regression] Internal compiler error with constexpr initialization of union
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78551
--- Comment #14 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Thu Dec 8 19:27:32 2016
New Revision: 243457
URL: https://gcc.gnu.org/viewcvs?rev=243457&root=gcc&view=rev
Log:
PR c++/78551
* constexpr.c (extract_string_elt): New. Broken out of ...
(cxx_eval_array_reference): ... here. Call it.
(cxx_eval_store_expression): Convert init by STRING_CST into
CONSTRUCTOR, if needed.
PR c++/78551
* g++.dg/cpp1y/pr78551.C: New.
Added:
branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/pr78551.C
Modified:
branches/gcc-5-branch/gcc/cp/ChangeLog
branches/gcc-5-branch/gcc/cp/constexpr.c
branches/gcc-5-branch/gcc/testsuite/ChangeLog
>From gcc-bugs-return-547066-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 19:32:01 2016
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From: "law at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/35302] Missing partial dead store elimination
Date: Thu, 08 Dec 2016 19:32:00 -0000
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Jeffrey A. Law <law at redhat dot com> changed:
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----------------------------------------------------------------------------
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--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
Richi fixed this back in 2009:
2009-11-23 Richard Guenther <rguenther@suse.de>
* tree-dfa.c (get_ref_base_and_extent): Adjust maximum access
size for DECL bases.
>From gcc-bugs-return-547067-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 19:51:43 2016
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Subject: [Bug rtl-optimization/54421] Extra movdqa when accessing quadwords in a 128-bit SSE register
Date: Thu, 08 Dec 2016 19:51:00 -0000
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Jeffrey A. Law <law at redhat dot com> changed:
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--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
It looks like we went through a series of improvements resulting in the current
compiler generating:
movhlps %xmm0, %xmm1
movq %xmm0, %rdx
movq %xmm1, %rax
orq %rax, %rdx
sete %al
movzbl %al, %eax
ret
ie, it operates solely on registers and thus avoids the unnecessary stack
loads/stores.
Given it was a progression over time, I'm not going to bisect each improvement.
It's just not worth the effort.
>From gcc-bugs-return-547068-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 19:53:19 2016
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From: "gerhard.steinmetz.fortran@t-online.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/66544] [F03] ICE on function with procedure-pointer result in combination with implicit none
Date: Thu, 08 Dec 2016 19:53:00 -0000
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--- Comment #9 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Frankly speaking, it's difficile. Smells more invalid than valid.
As a side note, I do not have any production code using a contruct
similar to that in comment 0 or in recursive_interface_*.
Still affects some examples from testsuite/gfortran.dg :
- data_value_1.f90
- recursive_interface_1.f90
- recursive_interface_2.f90
$ gfortran-7-20161204 -c recursive_interface_1.f90
$ gfortran-7-20161204 -fimplicit-none -c recursive_interface_1.f90
recursive_interface_1.f90:16:0:
function baz() result(r3)
internal compiler error: in gfc_typenode_for_spec, at
fortran/trans-types.c:1064
0x7c7b83 gfc_typenode_for_spec(gfc_typespec*, bool)
../../gcc/fortran/trans-types.c:1064
0x7c5c03 gfc_sym_type(gfc_symbol*)
../../gcc/fortran/trans-types.c:2167
0x7c670b gfc_get_function_type(gfc_symbol*)
../../gcc/fortran/trans-types.c:3030
0x7c68bc gfc_get_function_type(gfc_symbol*)
../../gcc/fortran/trans-types.c:3023
0x75130f build_function_decl
../../gcc/fortran/trans-decl.c:2157
0x75674b gfc_create_function_decl(gfc_namespace*, bool)
../../gcc/fortran/trans-decl.c:2833
0x733137 gfc_generate_module_code(gfc_namespace*)
../../gcc/fortran/trans.c:2149
0x6e72fd translate_all_program_units
../../gcc/fortran/parse.c:6025
0x6e72fd gfc_parse_file()
../../gcc/fortran/parse.c:6238
0x72b182 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:202
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Subject: [Bug c++/64380] Missed optimization: smarter dead store elimination in dtors
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Jeffrey A. Law <law at redhat dot com> changed:
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>From gcc-bugs-return-547070-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 20:37:37 2016
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Subject: [Bug middle-end/78738] [7 Regression] ICE in extract_insn, at recog.c:2311
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Uroš Bizjak <ubizjak at gmail dot com> changed:
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----------------------------------------------------------------------------
Status|NEW |ASSIGNED
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Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
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--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
Testing a patch.
>From gcc-bugs-return-547071-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:08:44 2016
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Subject: [Bug c/78165] avoid printing type suffix for constants in %E output
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--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Dec 8 21:08:06 2016
New Revision: 243461
URL: https://gcc.gnu.org/viewcvs?rev=243461&root=gcc&view=rev
Log:
PR c/78165 - avoid printing type suffix for constants in %E output
gcc/c-family/ChangeLog:
PR c/78165
* c-pretty-print (pp_c_integer_constant): Avoid formatting type
suffix.
gcc/testsuite/ChangeLog:
Modified:
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c-pretty-print.c
trunk/gcc/testsuite/g++.dg/debug/dwarf2/integer-typedef.C
trunk/gcc/testsuite/g++.dg/debug/dwarf2/typedef1.C
trunk/gcc/testsuite/g++.dg/inherit/covariant7.C
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Subject: [Bug c/78165] avoid printing type suffix for constants in %E output
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Martin Sebor <msebor at gcc dot gnu.org> changed:
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--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Committed in r243461.
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Subject: [Bug rtl-optimization/78671] [7 Regression] ICE: in extract_constrain_insn, at recog.c:2213 with -Og -march=skylake-avx512
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78671
--- Comment #5 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Thu Dec 8 21:14:42 2016
New Revision: 243462
URL: https://gcc.gnu.org/viewcvs?rev=243462&root=gcc&view=rev
Log:
2016-12-08 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/78671
* lra-assign.c (lra-assigns.c): Check prohibited regs for an
allocno class.
2016-12-08 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/78671
* gcc.target/i386/pr78671.c: New.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr78671.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lra-assigns.c
trunk/gcc/testsuite/ChangeLog
>From gcc-bugs-return-547076-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:26:58 2016
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Subject: [Bug fortran/65173] ICE while compiling wrong code
Date: Thu, 08 Dec 2016 21:26:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65173
--- Comment #13 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Dec 8 21:26:11 2016
New Revision: 243463
URL: https://gcc.gnu.org/viewcvs?rev=243463&root=gcc&view=rev
Log:
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.dg/misplaced_implicit_character.f90: Adjust errors.
* gfortran.dg/charlen_01.f90: New test.
* gfortran.dg/charlen_02.f90: Ditto.
* gfortran.dg/charlen_03.f90: Ditto.
* gfortran.dg/charlen_04.f90: Ditto.
* gfortran.dg/charlen_05.f90: Ditto.
* gfortran.dg/charlen_06.f90: Ditto.
* gfortran.dg/charlen_07.f90: Ditto.
* gfortran.dg/charlen_08.f90: Ditto.
* gfortran.dg/charlen_09.f90: Ditto.
* gfortran.dg/charlen_10.f90: Ditto.
* gfortran.dg/charlen_11.f90: Ditto.
* gfortran.dg/charlen_12.f90: Ditto.
* gfortran.dg/charlen_13.f90: Ditto.
* gfortran.dg/charlen_14.f90: Ditto.
* gfortran.dg/charlen_15.f90: Ditto.
* gfortran.dg/charlen_16.f90: Ditto.
Added:
trunk/gcc/testsuite/gfortran.dg/charlen_01.f90
trunk/gcc/testsuite/gfortran.dg/charlen_02.f90
trunk/gcc/testsuite/gfortran.dg/charlen_03.f90
trunk/gcc/testsuite/gfortran.dg/charlen_04.f90
trunk/gcc/testsuite/gfortran.dg/charlen_05.f90
trunk/gcc/testsuite/gfortran.dg/charlen_06.f90
trunk/gcc/testsuite/gfortran.dg/charlen_07.f90
trunk/gcc/testsuite/gfortran.dg/charlen_08.f90
trunk/gcc/testsuite/gfortran.dg/charlen_09.f90
trunk/gcc/testsuite/gfortran.dg/charlen_10.f90
trunk/gcc/testsuite/gfortran.dg/charlen_11.f90
trunk/gcc/testsuite/gfortran.dg/charlen_12.f90
trunk/gcc/testsuite/gfortran.dg/charlen_13.f90
trunk/gcc/testsuite/gfortran.dg/charlen_14.f90
trunk/gcc/testsuite/gfortran.dg/charlen_15.f90
trunk/gcc/testsuite/gfortran.dg/charlen_16.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/parse.c
trunk/gcc/fortran/symbol.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/misplaced_implicit_character.f90
>From gcc-bugs-return-547075-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:26:58 2016
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Subject: [Bug fortran/69064] [5/6/7 Regression] ICE: in gfc_typenode_for_spec, at fortran/trans-types.c:1062 when LEN is set to a variable with no explicit type
Date: Thu, 08 Dec 2016 21:26:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69064
--- Comment #54 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Dec 8 21:26:11 2016
New Revision: 243463
URL: https://gcc.gnu.org/viewcvs?rev=243463&root=gcc&view=rev
Log:
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.dg/misplaced_implicit_character.f90: Adjust errors.
* gfortran.dg/charlen_01.f90: New test.
* gfortran.dg/charlen_02.f90: Ditto.
* gfortran.dg/charlen_03.f90: Ditto.
* gfortran.dg/charlen_04.f90: Ditto.
* gfortran.dg/charlen_05.f90: Ditto.
* gfortran.dg/charlen_06.f90: Ditto.
* gfortran.dg/charlen_07.f90: Ditto.
* gfortran.dg/charlen_08.f90: Ditto.
* gfortran.dg/charlen_09.f90: Ditto.
* gfortran.dg/charlen_10.f90: Ditto.
* gfortran.dg/charlen_11.f90: Ditto.
* gfortran.dg/charlen_12.f90: Ditto.
* gfortran.dg/charlen_13.f90: Ditto.
* gfortran.dg/charlen_14.f90: Ditto.
* gfortran.dg/charlen_15.f90: Ditto.
* gfortran.dg/charlen_16.f90: Ditto.
Added:
trunk/gcc/testsuite/gfortran.dg/charlen_01.f90
trunk/gcc/testsuite/gfortran.dg/charlen_02.f90
trunk/gcc/testsuite/gfortran.dg/charlen_03.f90
trunk/gcc/testsuite/gfortran.dg/charlen_04.f90
trunk/gcc/testsuite/gfortran.dg/charlen_05.f90
trunk/gcc/testsuite/gfortran.dg/charlen_06.f90
trunk/gcc/testsuite/gfortran.dg/charlen_07.f90
trunk/gcc/testsuite/gfortran.dg/charlen_08.f90
trunk/gcc/testsuite/gfortran.dg/charlen_09.f90
trunk/gcc/testsuite/gfortran.dg/charlen_10.f90
trunk/gcc/testsuite/gfortran.dg/charlen_11.f90
trunk/gcc/testsuite/gfortran.dg/charlen_12.f90
trunk/gcc/testsuite/gfortran.dg/charlen_13.f90
trunk/gcc/testsuite/gfortran.dg/charlen_14.f90
trunk/gcc/testsuite/gfortran.dg/charlen_15.f90
trunk/gcc/testsuite/gfortran.dg/charlen_16.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/parse.c
trunk/gcc/fortran/symbol.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/misplaced_implicit_character.f90
>From gcc-bugs-return-547074-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:26:58 2016
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Subject: [Bug fortran/69859] Non-deterministic ICEs on incomplete character declaration statement
Date: Thu, 08 Dec 2016 21:26:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69859
--- Comment #7 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Dec 8 21:26:11 2016
New Revision: 243463
URL: https://gcc.gnu.org/viewcvs?rev=243463&root=gcc&view=rev
Log:
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.dg/misplaced_implicit_character.f90: Adjust errors.
* gfortran.dg/charlen_01.f90: New test.
* gfortran.dg/charlen_02.f90: Ditto.
* gfortran.dg/charlen_03.f90: Ditto.
* gfortran.dg/charlen_04.f90: Ditto.
* gfortran.dg/charlen_05.f90: Ditto.
* gfortran.dg/charlen_06.f90: Ditto.
* gfortran.dg/charlen_07.f90: Ditto.
* gfortran.dg/charlen_08.f90: Ditto.
* gfortran.dg/charlen_09.f90: Ditto.
* gfortran.dg/charlen_10.f90: Ditto.
* gfortran.dg/charlen_11.f90: Ditto.
* gfortran.dg/charlen_12.f90: Ditto.
* gfortran.dg/charlen_13.f90: Ditto.
* gfortran.dg/charlen_14.f90: Ditto.
* gfortran.dg/charlen_15.f90: Ditto.
* gfortran.dg/charlen_16.f90: Ditto.
Added:
trunk/gcc/testsuite/gfortran.dg/charlen_01.f90
trunk/gcc/testsuite/gfortran.dg/charlen_02.f90
trunk/gcc/testsuite/gfortran.dg/charlen_03.f90
trunk/gcc/testsuite/gfortran.dg/charlen_04.f90
trunk/gcc/testsuite/gfortran.dg/charlen_05.f90
trunk/gcc/testsuite/gfortran.dg/charlen_06.f90
trunk/gcc/testsuite/gfortran.dg/charlen_07.f90
trunk/gcc/testsuite/gfortran.dg/charlen_08.f90
trunk/gcc/testsuite/gfortran.dg/charlen_09.f90
trunk/gcc/testsuite/gfortran.dg/charlen_10.f90
trunk/gcc/testsuite/gfortran.dg/charlen_11.f90
trunk/gcc/testsuite/gfortran.dg/charlen_12.f90
trunk/gcc/testsuite/gfortran.dg/charlen_13.f90
trunk/gcc/testsuite/gfortran.dg/charlen_14.f90
trunk/gcc/testsuite/gfortran.dg/charlen_15.f90
trunk/gcc/testsuite/gfortran.dg/charlen_16.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/parse.c
trunk/gcc/fortran/symbol.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/misplaced_implicit_character.f90
>From gcc-bugs-return-547077-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:26:59 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78350] ICE in gfc_code2string(): Bad code, at fortran/misc.c:193
Date: Thu, 08 Dec 2016 21:26:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78350
--- Comment #3 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Dec 8 21:26:11 2016
New Revision: 243463
URL: https://gcc.gnu.org/viewcvs?rev=243463&root=gcc&view=rev
Log:
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.dg/misplaced_implicit_character.f90: Adjust errors.
* gfortran.dg/charlen_01.f90: New test.
* gfortran.dg/charlen_02.f90: Ditto.
* gfortran.dg/charlen_03.f90: Ditto.
* gfortran.dg/charlen_04.f90: Ditto.
* gfortran.dg/charlen_05.f90: Ditto.
* gfortran.dg/charlen_06.f90: Ditto.
* gfortran.dg/charlen_07.f90: Ditto.
* gfortran.dg/charlen_08.f90: Ditto.
* gfortran.dg/charlen_09.f90: Ditto.
* gfortran.dg/charlen_10.f90: Ditto.
* gfortran.dg/charlen_11.f90: Ditto.
* gfortran.dg/charlen_12.f90: Ditto.
* gfortran.dg/charlen_13.f90: Ditto.
* gfortran.dg/charlen_14.f90: Ditto.
* gfortran.dg/charlen_15.f90: Ditto.
* gfortran.dg/charlen_16.f90: Ditto.
Added:
trunk/gcc/testsuite/gfortran.dg/charlen_01.f90
trunk/gcc/testsuite/gfortran.dg/charlen_02.f90
trunk/gcc/testsuite/gfortran.dg/charlen_03.f90
trunk/gcc/testsuite/gfortran.dg/charlen_04.f90
trunk/gcc/testsuite/gfortran.dg/charlen_05.f90
trunk/gcc/testsuite/gfortran.dg/charlen_06.f90
trunk/gcc/testsuite/gfortran.dg/charlen_07.f90
trunk/gcc/testsuite/gfortran.dg/charlen_08.f90
trunk/gcc/testsuite/gfortran.dg/charlen_09.f90
trunk/gcc/testsuite/gfortran.dg/charlen_10.f90
trunk/gcc/testsuite/gfortran.dg/charlen_11.f90
trunk/gcc/testsuite/gfortran.dg/charlen_12.f90
trunk/gcc/testsuite/gfortran.dg/charlen_13.f90
trunk/gcc/testsuite/gfortran.dg/charlen_14.f90
trunk/gcc/testsuite/gfortran.dg/charlen_15.f90
trunk/gcc/testsuite/gfortran.dg/charlen_16.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/parse.c
trunk/gcc/fortran/symbol.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/misplaced_implicit_character.f90
>From gcc-bugs-return-547078-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:28:04 2016
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Subject: [Bug fortran/69859] Non-deterministic ICEs on incomplete character declaration statement
Date: Thu, 08 Dec 2016 21:28:00 -0000
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kargl at gcc dot gnu.org changed:
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--- Comment #8 from kargl at gcc dot gnu.org ---
Fixed on trunk. Closing
>From gcc-bugs-return-547079-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:29:21 2016
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Subject: [Bug fortran/69064] [5/6/7 Regression] ICE: in gfc_typenode_for_spec, at fortran/trans-types.c:1062 when LEN is set to a variable with no explicit type
Date: Thu, 08 Dec 2016 21:29:00 -0000
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kargl at gcc dot gnu.org changed:
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--- Comment #55 from kargl at gcc dot gnu.org ---
Fixed on trunk. Closing.
>From gcc-bugs-return-547080-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:30:29 2016
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Subject: [Bug fortran/65173] ICE while compiling wrong code
Date: Thu, 08 Dec 2016 21:30:00 -0000
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kargl at gcc dot gnu.org changed:
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--- Comment #14 from kargl at gcc dot gnu.org ---
Fixed on trunk. Closing.
>From gcc-bugs-return-547081-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 21:31:24 2016
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Subject: [Bug fortran/78350] ICE in gfc_code2string(): Bad code, at fortran/misc.c:193
Date: Thu, 08 Dec 2016 21:31:00 -0000
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kargl at gcc dot gnu.org changed:
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--- Comment #4 from kargl at gcc dot gnu.org ---
Fixed on trunk. Closing.
>From gcc-bugs-return-547082-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 22:19:46 2016
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Subject: [Bug fortran/78737] linking error with deferred, undefined user-defined derived-type I/O
Date: Thu, 08 Dec 2016 22:19:00 -0000
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--- Comment #1 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
I cc'ed Paul on this one. Not sure what is going on here, but I will be looking
at it.
>From gcc-bugs-return-547083-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 22:20:23 2016
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From: "law at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/77485] Missed dead store elimination of aggregate store followed by partial stores
Date: Thu, 08 Dec 2016 22:20:00 -0000
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--- Comment #4 from Jeffrey A. Law <law at redhat dot com> ---
So my patches for 33562 will detect the partial dead store in "foo", but I
never wrote the bits to narrow partial dead stores.
The difficulty in optimizing this particular case will be rewriting the
CONSTRUCTOR node. Though it may be as simple as walking down the CONSTRUCTOR
and splicing out components which correspond to dead assignments -- I'll have
to familiarize myself with the guts of how to walk CONSTRUCTOR nodes.
Hopefully they're at least in-order and extracting byte offsets is easy :-)
>From gcc-bugs-return-547084-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 22:44:25 2016
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From: "damian at sourceryinstitute dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78737] linking error with deferred, undefined user-defined derived-type I/O
Date: Thu, 08 Dec 2016 22:44:00 -0000
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--- Comment #2 from Damian Rouson <damian at sourceryinstitute dot org> ---
Upon further investigation, the workaround mentioned in the final line of the
original report appears not to work. The only workaround I have come up with
is to make the "object" type non-abstract, which then necessitates making the
write_formatted binding non-deferred, which then necessitates replacing the
abstract interface with an actual implementation. It's pretty major surgery,
but not the worst problem in the world.
>From gcc-bugs-return-547085-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 23:45:54 2016
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Subject: [Bug tree-optimization/78742] New: internal compiler error: in int_cst_value, at tree.c:10782
Date: Thu, 08 Dec 2016 23:45:00 -0000
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Bug ID: 78742
Summary: internal compiler error: in int_cst_value, at
tree.c:10782
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: dabler at gmail dot com
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Created attachment 40283
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40283&action=edit
testcase
On x86_64 Linux:
$ gcc -v -save-temps -O3 -o libmp-test.o libmp.c -c
Using built-in specs.
COLLECT_GCC=gcc
Target: x86_64-linux
Configured with: ../configure --build=x86_64-linux --with-arch=core2
--with-tune=westmere --with-thread=posix --with-as=/usr/bin/as
--with-ld=/usr/bin/ld --with-system-zlib --program-suffix=-5.4
Thread model: posix
gcc version 5.4.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-o' 'libmp-test.o' '-c'
'-mtune=westmere' '-march=core2'
/usr/local/libexec/gcc/x86_64-linux/5.4.0/cc1 -E -quiet -v libmp.c
-mtune=westmere -march=core2 -O3 -fpch-preprocess -o libmp.i
ignoring duplicate directory
"/usr/local/lib/gcc/x86_64-linux/5.4.0/../../../../x86_64-linux/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/lib/gcc/x86_64-linux/5.4.0/include
/usr/local/include
/usr/local/lib/gcc/x86_64-linux/5.4.0/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-o' 'libmp-test.o' '-c'
'-mtune=westmere' '-march=core2'
/usr/local/libexec/gcc/x86_64-linux/5.4.0/cc1 -fpreprocessed libmp.i -quiet
-dumpbase libmp.c -mtune=westmere -march=core2 -auxbase-strip libmp-test.o -O3
-version -o libmp.s
GNU C11 (GCC) version 5.4.0 (x86_64-linux)
compiled by GNU C version 5.4.0, GMP version 4.3.1, MPFR version 2.4.1,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C11 (GCC) version 5.4.0 (x86_64-linux)
compiled by GNU C version 5.4.0, GMP version 4.3.1, MPFR version 2.4.1,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 6af85bd5d50765bfdcb33ae94df5c82d
libmp.c: In function ‘func’:
libmp.c:3:6: internal compiler error: in int_cst_value, at tree.c:10782
void func()
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ cat libmp.c
void foo();
void func()
{
int m;
int tab[m];
__int128 j;
for(; j; j++)
{
tab[j] = 0;
tab[j+1] = 0;
}
foo();
}
Affected gcc versions I have found: 5.x.x, 6.x.x
>From gcc-bugs-return-547086-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 23:48:31 2016
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From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78737] linking error with deferred, undefined user-defined derived-type I/O
Date: Thu, 08 Dec 2016 23:48:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78737
--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
I am not sure what you are expecting. The module has an empty main program and
nothing allocated to link to.. Since the interface is abstract it creates
nothing until it is used I think.
$ gfc pr78737.f03
/tmp/ccBH9og7.o: In function `__object_interface_MOD_assert':
pr78737.f03:(.text+0x59): undefined reference to `write_formatted_interface_'
collect2: error: ld returned 1 exit status
$ gfc -c pr78737.f03
$
>From gcc-bugs-return-547087-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 23:51:30 2016
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Subject: [Bug c/78284] warn on malloc with very large arguments
Date: Thu, 08 Dec 2016 23:51:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78284
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Dec 8 23:50:40 2016
New Revision: 243470
URL: https://gcc.gnu.org/viewcvs?rev=243470&root=gcc&view=rev
Log:
PR c/77531 - __attribute__((alloc_size(1,2))) could also warn on multiplication
overflow
PR c/78284 - warn on malloc with very large arguments
gcc/c-family/ChangeLog:
PR c/78284
* c.opt (-Walloc-zero, -Walloc-size-larger-than): New options.
gcc/ChangeLog:
PR c/78284
* builtin-attrs.def (ATTR_ALLOC_SIZE, ATTR_RETURNS_NONNULL): New
identifier tree nodes.
(ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST): New attribute list.
(ATTR_MALLOC_SIZE_1_NOTHROW_LIST): Same.
(ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST): Same.
(ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST): Same.
(ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST): Same.
* builtins.c (expand_builtin_alloca): Call
maybe_warn_alloc_args_overflow.
* builtins.def (aligned_alloc, calloc, malloc, realloc):
Add attribute alloc_size.
(alloca): Add attribute alloc_size and returns_nonnull.
* calls.h (maybe_warn_alloc_args_overflow): Declare.
* calls.c (alloc_max_size, operand_signed_p): New functions.
(maybe_warn_alloc_args_overflow): Define.
(initialize_argument_information): Diagnose overflow in functions
declared with attaribute alloc_size.
* doc/invoke.texi (Warning Options): Document -Walloc-zero and
-Walloc-size-larger-than.
gcc/testsuite/ChangeLog:
PR c/78284
* gcc.dg/attr-alloc_size-3.c: New test.
* gcc.dg/attr-alloc_size-4.c: New test.
* gcc.dg/attr-alloc_size-5.c: New test.
* gcc.dg/attr-alloc_size-6.c: New test.
* gcc.dg/attr-alloc_size-7.c: New test.
* gcc.dg/attr-alloc_size-8.c: New test.
* gcc.dg/attr-alloc_size-9.c: New test.
* gcc/testsuite/gcc.dg/errno-1.c: Adjust.
Added:
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-3.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-4.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-5.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-6.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-7.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-8.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-9.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c.opt
trunk/gcc/calls.c
trunk/gcc/calls.h
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/errno-1.c
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Subject: [Bug c/77531] __attribute__((alloc_size(1,2))) could also warn on multiplication overflow
Date: Thu, 08 Dec 2016 23:51:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77531
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Dec 8 23:50:40 2016
New Revision: 243470
URL: https://gcc.gnu.org/viewcvs?rev=243470&root=gcc&view=rev
Log:
PR c/77531 - __attribute__((alloc_size(1,2))) could also warn on multiplication
overflow
PR c/78284 - warn on malloc with very large arguments
gcc/c-family/ChangeLog:
PR c/78284
* c.opt (-Walloc-zero, -Walloc-size-larger-than): New options.
gcc/ChangeLog:
PR c/78284
* builtin-attrs.def (ATTR_ALLOC_SIZE, ATTR_RETURNS_NONNULL): New
identifier tree nodes.
(ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST): New attribute list.
(ATTR_MALLOC_SIZE_1_NOTHROW_LIST): Same.
(ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST): Same.
(ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST): Same.
(ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST): Same.
* builtins.c (expand_builtin_alloca): Call
maybe_warn_alloc_args_overflow.
* builtins.def (aligned_alloc, calloc, malloc, realloc):
Add attribute alloc_size.
(alloca): Add attribute alloc_size and returns_nonnull.
* calls.h (maybe_warn_alloc_args_overflow): Declare.
* calls.c (alloc_max_size, operand_signed_p): New functions.
(maybe_warn_alloc_args_overflow): Define.
(initialize_argument_information): Diagnose overflow in functions
declared with attaribute alloc_size.
* doc/invoke.texi (Warning Options): Document -Walloc-zero and
-Walloc-size-larger-than.
gcc/testsuite/ChangeLog:
PR c/78284
* gcc.dg/attr-alloc_size-3.c: New test.
* gcc.dg/attr-alloc_size-4.c: New test.
* gcc.dg/attr-alloc_size-5.c: New test.
* gcc.dg/attr-alloc_size-6.c: New test.
* gcc.dg/attr-alloc_size-7.c: New test.
* gcc.dg/attr-alloc_size-8.c: New test.
* gcc.dg/attr-alloc_size-9.c: New test.
* gcc/testsuite/gcc.dg/errno-1.c: Adjust.
Added:
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-3.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-4.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-5.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-6.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-7.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-8.c
trunk/gcc/testsuite/gcc.dg/attr-alloc_size-9.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c.opt
trunk/gcc/calls.c
trunk/gcc/calls.h
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/errno-1.c
>From gcc-bugs-return-547090-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 23:52:40 2016
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Subject: [Bug c/77531] __attribute__((alloc_size(1,2))) could also warn on multiplication overflow
Date: Thu, 08 Dec 2016 23:52:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
Implemented in r243470.
>From gcc-bugs-return-547089-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Dec 08 23:52:06 2016
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Subject: [Bug c/78284] warn on malloc with very large arguments
Date: Thu, 08 Dec 2016 23:52:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Implemented in r243470.
>From gcc-bugs-return-547091-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 01:15:46 2016
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From: "matthijsvanduin at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/50481] builtin to reverse the bit order
Date: Fri, 09 Dec 2016 01:15:00 -0000
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Matthijs van Duin <matthijsvanduin at gmail dot com> changed:
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----------------------------------------------------------------------------
CC| |matthijsvanduin at gmail dot com
--- Comment #3 from Matthijs van Duin <matthijsvanduin at gmail dot com> ---
Bump! Proper intrinsics for bitreverse would be much appreciated! A plain C
implementation is ugly and results in equally awful code output, while using
inline asm breaks portability and can't be constant-folded or used in
constexpr.
What makes the continued lack of a __builtin_arm_rbit() in gcc a bit bizarre is
that the (identically named) Neon versions of this instruction on AArch64
actually *did* receive proper intrinsics! [1]
It's worth mentioning that clang does support __builtin_arm_rbit(), and they've
actually generalized this to a full set of target-independent bitreverse
builtins [2].
[1] https://gcc.gnu.org/ml/gcc-patches/2014-08/msg01913.html
[2] http://clang.llvm.org/docs/LanguageExtensions.html#builtin-bitreverse
>From gcc-bugs-return-547092-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 04:35:28 2016
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Subject: [Bug tree-optimization/78731] Possible bug with switch when optimization is turned on.
Date: Fri, 09 Dec 2016 04:35:00 -0000
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--- Comment #2 from Jim Wilson <wilson at gcc dot gnu.org> ---
The compiler is failing in jump threading as called by dom2. Jeff's 2015-09-30
patch is triggering in dom1, and changing the CFG just enough to prevent the
jump threading bug from triggering. So it isn't a proper fix.
Disabling it, and bisecting again, I found bug 67892, another patch from Jeff,
which looks like a proper fix. However, there is a problem. The bug was
reported against gcc 5, fixed in gcc 6, and then closed, but is still broken in
gcc 5. I think it is in the wrong state. Presumably, it should still be open,
and then fixed in gcc 5 if reasonably safe, or documented as a known bug that
we won't fix in gcc 5.
>From gcc-bugs-return-547093-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 07:54:39 2016
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Subject: [Bug rtl-optimization/78671] [7 Regression] ICE: in extract_constrain_insn, at recog.c:2213 with -Og -march=skylake-avx512
Date: Fri, 09 Dec 2016 07:54:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Assuming fixed.
>From gcc-bugs-return-547094-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 07:57:22 2016
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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/77485] Missed dead store elimination of aggregate store followed by partial stores
Date: Fri, 09 Dec 2016 07:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77485
--- Comment #5 from rguenther at suse dot de <rguenther at suse dot de> ---
On Thu, 8 Dec 2016, law at redhat dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77485
>
> --- Comment #4 from Jeffrey A. Law <law at redhat dot com> ---
> So my patches for 33562 will detect the partial dead store in "foo", but I
> never wrote the bits to narrow partial dead stores.
>
> The difficulty in optimizing this particular case will be rewriting the
> CONSTRUCTOR node. Though it may be as simple as walking down the CONSTRUCTOR
> and splicing out components which correspond to dead assignments -- I'll have
> to familiarize myself with the guts of how to walk CONSTRUCTOR nodes.
> Hopefully they're at least in-order and extracting byte offsets is easy :-)
Should be.
But I still think any "real" DSE work should be done by unifying what
SRA, update-address-taken, store-merging and current DSE do (eventually
even the bswap pass). Those are all related and they share basic analysis
(and dataflow) parts and would benefit from each other transform "tricks".
And all of them would benefit from being flow-sensitive in a way to
consider parts of the CFG where for example addresses do not escape
and doing some (eventually expensive) stuff at such (cold?) region
boundaries.
>From gcc-bugs-return-547095-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:05:59 2016
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Subject: [Bug target/72683] [7 Regression] MPX test failures with LTO
Date: Fri, 09 Dec 2016 08:05:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes.
>From gcc-bugs-return-547096-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:20:06 2016
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
Date: Fri, 09 Dec 2016 08:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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>From gcc-bugs-return-547098-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:44:46 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78482] [5/6 Regression] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu
Date: Fri, 09 Dec 2016 08:44:00 -0000
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--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547100-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:00 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78224] [5/6 Regression] g++ ICE at -O2(-O1 on gcc6) and above in verify_loop_structure, at cfgloop.c:1646
Date: Fri, 09 Dec 2016 08:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78224
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547097-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:44:46 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78542] [6 Regression] wrong code at -Og results in endless loop
Date: Fri, 09 Dec 2016 08:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78542
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547102-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:42 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/77646] [5/6 Regression] GCC Segfault with -O3
Date: Fri, 09 Dec 2016 08:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77646
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547103-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:46 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/71575] [6 Regression] [graphite] internal compiler error: in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2500
Date: Fri, 09 Dec 2016 08:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71575
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547099-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:00 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/71762] [5/6 Regression] ~X & Y to X < Y doesn't work for uninitialized values
Date: Fri, 09 Dec 2016 08:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71762
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547101-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:00 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/71848] [7 Regression] libstdc++ testsuite error on AIX
Date: Fri, 09 Dec 2016 08:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71848
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547107-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:46:22 2016
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78739] ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1477
Date: Fri, 09 Dec 2016 08:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78739
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-invalid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |marxin at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, all releases I have ICE (4.5.0+).
>From gcc-bugs-return-547104-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:47 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/78188] [7 Regression] AIX Bootstrap broken by tree-vrp.c change
Date: Fri, 09 Dec 2016 08:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #27 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 08:43:50 2016
New Revision: 243475
URL: https://gcc.gnu.org/viewcvs?rev=243475&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/78542
* tree-ssa-ccp.c (evaluate_stmt): Only valueize simplification
if allowed.
* gcc.dg/torture/pr78542.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/78482
* tree-cfgcleanup.c: Include tree-ssa-loop-niter.h.
(remove_forwarder_block_with_phi): When merging with a loop
header creates a new latch reset number of iteration information
of the loop.
* gcc.dg/torture/pr78482.c: New testcase.
2016-11-23 Richard Biener <rguenther@suse.de>
PR middle-end/71762
* match.pd ((~X & Y) -> X < Y, (X & ~Y) -> Y < X,
(~X | Y) -> X <= Y, (X | ~Y) -> Y <= X): Remove.
* gcc.dg/torture/pr71762-1.c: New testcase.
* gcc.dg/torture/pr71762-2.c: Likewise.
* gcc.dg/torture/pr71762-3.c: Likewise.
* gcc.dg/tree-ssa/forwprop-28.c: XFAIL.
2016-11-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71575
* graphite-isl-ast-to-gimple.c (copy_cond_phi_nodes): Remove
bogus assert.
* gcc.dg/graphite/pr71575-1.c: New testcase.
* gcc.dg/graphite/pr71575-2.c: Likewise.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78224
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds):
Split the fallthru edge in case its successor may have PHIs.
* g++.dg/torture/pr78224.C: New testcase.
2016-11-05 David Edelsohn <dje.gcc@gmail.com>
Richard Biener <rguenther@suse.de>
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.
* g++.dg/ipa/pr78188.C: New test.
2016-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/77646
* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
a VDEF.
* gcc.dg/torture/pr77646.c: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78224.C
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr71575-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-2.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr71762-3.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78482.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr78542.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/graphite-isl-ast-to-gimple.c
branches/gcc-6-branch/gcc/ipa-comdats.c
branches/gcc-6-branch/gcc/match.pd
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
branches/gcc-6-branch/gcc/tree-call-cdce.c
branches/gcc-6-branch/gcc/tree-cfgcleanup.c
branches/gcc-6-branch/gcc/tree-ssa-ccp.c
branches/gcc-6-branch/gcc/tree-ssa-sccvn.c
>From gcc-bugs-return-547105-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:45:48 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/71575] [6 Regression] [graphite] internal compiler error: in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2500
Date: Fri, 09 Dec 2016 08:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71575
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-547106-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:46:02 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/59859] [meta-bug] GRAPHITE issues
Date: Fri, 09 Dec 2016 08:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59859
Bug 59859 depends on bug 71575, which changed state.
Bug 71575 Summary: [6 Regression] [graphite] internal compiler error: in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2500
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71575
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
>From gcc-bugs-return-547108-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 08:47:28 2016
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Subject: [Bug fortran/78741] ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1534
Date: Fri, 09 Dec 2016 08:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78741
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-invalid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |marxin at gcc dot gnu.org
Known to work| |4.5.0
Ever confirmed|0 |1
Known to fail| |4.6.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with 4.6.0.
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Subject: [Bug tree-optimization/78542] [6 Regression] wrong code at -Og results in endless loop
Date: Fri, 09 Dec 2016 08:47:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |6.2.1, 7.0
Resolution|--- |FIXED
Known to fail|7.0 |6.2.0
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 08:49:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |mpolacek at gcc dot gnu.org
Known to work| |4.9.0
Target Milestone|--- |5.5
Summary|internal compiler error: in |[5/6/7 Regression] internal
|int_cst_value, at |compiler error: in
|tree.c:10782 |int_cst_value, at
| |tree.c:10782
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 08:53:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
CC| |marxin at gcc dot gnu.org
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Back-trace:
/home/marxin/Programming/testcases/pr78742.c:3:6: internal compiler error: in
int_cst_value, at tree.c:11484
void func()
^~~~
0x1284ec8 int_cst_value(tree_node const*)
../../gcc/tree.c:11484
0x19018af initialize_matrix_A
../../gcc/tree-data-ref.c:2123
0x1902aad analyze_subscript_affine_affine
../../gcc/tree-data-ref.c:2539
0x1903ba4 analyze_siv_subscript
../../gcc/tree-data-ref.c:2858
0x190452d analyze_overlapping_iterations
../../gcc/tree-data-ref.c:3089
0x190594a subscript_dependence_tester_1
../../gcc/tree-data-ref.c:3614
0x1905a7b subscript_dependence_tester
../../gcc/tree-data-ref.c:3661
0x1905cae compute_affine_dependence(data_dependence_relation*, loop*)
../../gcc/tree-data-ref.c:3720
0xfd8709 pg_add_dependence_edges
../../gcc/tree-loop-distribution.c:1388
0xfd9194 distribute_loop
../../gcc/tree-loop-distribution.c:1623
0xfd9c31 execute
../../gcc/tree-loop-distribution.c:1844
Problematic constant:
(gdb) p debug_tree(x)
<integer_cst 0x7ffff69b42d0 type <integer_type 0x7ffff689e9d8 __int128>
constant 1>
│11483 /* Make sure the sign-extended value will fit in a HOST_WIDE_INT.
*/│
B+>│11484 gcc_assert (cst_and_fits_in_hwi (x));│
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
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--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with
commit 6b66bc4ba37a18494643bf1d9dd8721f77baff96
Merge: 5c3f347 6c86f9e
Author: mrs <mrs@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue May 6 16:25:05 2014 +0000
Merge in wide-int.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210113
138bc75d-0d04-0410-961f-82ee72b054a4
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Subject: [Bug tree-optimization/78699] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu (memory-hog)
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Subject: [Bug c++/78701] [6/7 Regression] ICE: unexpected expression N of kind template_parm_index
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----------------------------------------------------------------------------
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-12-09
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a looksee.
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78704] operator-> pointer return type is not recognized as pointer type
Date: Fri, 09 Dec 2016 09:14:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78704
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|7.0 |---
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78707] [5/6 Regression] internal compiler error: in push_reload, at reload.c:1349
Date: Fri, 09 Dec 2016 09:15:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |5.5
Summary|[4.8/4.9/5/6 Regression] |[5/6 Regression] internal
|internal compiler error: in |compiler error: in
|push_reload, at |push_reload, at
|reload.c:1349 |reload.c:1349
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From: "bjarni.sigurdsson at marel dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78743] New: g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 09:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78743
Bug ID: 78743
Summary: g++ segfaults when printing warning for captured
constexpr variable
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: bjarni.sigurdsson at marel dot com
Target Milestone: ---
The following code will result in a segmentation fault when compiled with g++
version 6.2.0.
// --------------------------------------------------
static constexpr double foo = 10000.0;
int main()
{
auto foobar = [foo](){return (double)foo;};
return 0;
}
// --------------------------------------------------
Example compile output from "g++ test_crash.cpp":
test_crash.cpp: In function 'int main()':
test_crash.cpp:5:20: warning: capture of variable 'foo' with non-automatic
storage duration
auto foobar = [foo](){return (double)foo;};
^~~
'
Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Fixing the warning of course resolves the crash, but also removing the
constexpr:
// --------------------------------------------------
static double foo = 10000.0;
int main()
{
auto foobar = [foo](){return (double)foo;};
return 0;
}
// --------------------------------------------------
Example output from "g++ test_ok.cpp":
test_ok.cpp: In function 'int main()':
test_ok.cpp:5:20: warning: capture of variable 'foo' with non-automatic storage
duration
auto foobar = [foo](){return (double)foo;};
^~~
test_ok.cpp:1:15: note: 'double foo' declared here
static double foo = 10000.0;
^~~
GCC 6.2.0 was built with the following options:
Configured with: ../gcc-6.2.0/configure --prefix=/opt/plutotoolchain
--target=i686-marel-linux-gnu --with-sysroot=/opt/pluto-targets/i386-rootfs/
--enable-languages=c,c++ --enable-threads=posix --enable-shared
--disable-multilib --enable-__cxa_atexit --disable-sjlj-exceptions
--disable-nls --disable-decimal-float --disable-fixed-point
--enable-checking=release --enable-symvers=gnu --enable-c99 --enable-long-long
--enable-profile --with-system-zlib
--with-default-libstdcxx-abi=gcc4-compatible --with-tune=intel
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From: "tschwinge at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/78027] [6/7 Regression] ICE in new_oacc_loop_routine, at omp-low.c:19000
Date: Fri, 09 Dec 2016 09:17:00 -0000
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Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Component|fortran |ipa
Assignee|unassigned at gcc dot gnu.org |cesar at gcc dot gnu.org
--- Comment #3 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
<https://gcc.gnu.org/ml/gcc-patches/2016-12/msg00704.html>.
>From gcc-bugs-return-547121-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:17:53 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78709] Code size is bigger at -Os than at -O3, -Os does not enable -ftree-loop-distribute-patterns
Date: Fri, 09 Dec 2016 09:17:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
Summary|Code size is bigger at -Os |Code size is bigger at -Os
|than at -O3 |than at -O3, -Os does not
| |enable
| |-ftree-loop-distribute-patt
| |erns
Ever confirmed|0 |1
Severity|normal |enhancement
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Just enable it yourself... As of it's current implementation it's not always a
code-size win (its cost model would need adjustments).
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
Date: Fri, 09 Dec 2016 09:18:00 -0000
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40284
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40284&action=edit
gcc7-pr78720.patch
Untested fix.
>From gcc-bugs-return-547123-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:21:58 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78713] [missed optimization] gcc doesn't use clobbers to optimize constructors
Date: Fri, 09 Dec 2016 09:21:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
Component|tree-optimization |libstdc++
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Depends on the size of the optional thing of course. A libstdc++ issue, the
middle-end can not know it is allowed to clobber the destination here.
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization
Date: Fri, 09 Dec 2016 09:22:00 -0000
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 9 09:21:36 2016
New Revision: 243476
URL: https://gcc.gnu.org/viewcvs?rev=243476&root=gcc&view=rev
Log:
PR tree-optimization/78726
* tree-ssa-reassoc.c (make_new_ssa_for_def): Add OPCODE and OP
argument. For lhs uses in debug stmts, don't replace lhs with
new_lhs, but with a debug temp set to new_lhs opcode op.
(make_new_ssa_for_all_defs): Add OPCODE argument, pass OPCODE and
OP down to make_new_ssa_for_def.
(zero_one_operation): Call make_new_ssa_for_all_defs even when
stmts_to_fix is empty, if *def has not changed yet. Pass
OPCODE to make_new_ssa_for_all_defs.
* gcc.c-torture/execute/pr78726.c: New test.
* gcc.dg/guality/pr78726.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr78726.c
trunk/gcc/testsuite/gcc.dg/guality/pr78726.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-reassoc.c
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Subject: [Bug c++/78743] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 09:22:00 -0000
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--- Comment #1 from bjarni.sigurdsson at marel dot com ---
FYI: This code does not cause a segfault for GCC 5.2.0.
>From gcc-bugs-return-547127-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:23:36 2016
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Subject: [Bug middle-end/78726] [5/6 Regression] Incorrect unsigned arithmetic optimization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |5.5
Summary|[5/6/7 Regression] |[5/6 Regression] Incorrect
|Incorrect unsigned |unsigned arithmetic
|arithmetic optimization |optimization
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed on the trunk so far.
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Subject: [Bug middle-end/78716] [7 Regression] ICE in gimplify_va_arg_expr, at gimplify.c:12650 (i686-linux-gnu)
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/78264] [7 regression] ICE in build_noexcept_spec, at cp/except.c:1196
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--- Comment #10 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
Hi Eric,
thanks for fixing this. Shouldn't we keep the PR open, though? It's
still an ice-on-invalid.
Rainer
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Subject: [Bug tree-optimization/78725] [7 Regression] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug middle-end/78726] [5/6 Regression] Incorrect unsigned arithmetic optimization
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug rtl-optimization/78727] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
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--- Comment #1 from amker at gcc dot gnu.org ---
Hmm, I am not familiar with powerpc targets, how should I restrict test case on
targets that support -m32? In gcc.target/powerpc/fusion4.c, there are
/* { dg-do compile { target { powerpc*-*-* && ilp32 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-require-effective-target powerpc_p9vector_ok } */
/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } {
"-mcpu=power7" } } */
/* { dg-options "-mcpu=power7 -mtune=power9 -O3 -msoft-float -m32" } */
>From gcc-bugs-return-547136-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:33:42 2016
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Subject: [Bug middle-end/78738] [7 Regression] ICE in extract_insn, at recog.c:2311
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>From gcc-bugs-return-547135-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:33:30 2016
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Subject: [Bug c/78736] enum warnings in GCC
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
.
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From: "aroldan at protonmail dot ch" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/78744] New: Build errors on OS X 12.1 with Xcode 8.1 on GCC 4.8.3
Date: Fri, 09 Dec 2016 09:34:00 -0000
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Bug ID: 78744
Summary: Build errors on OS X 12.1 with Xcode 8.1 on GCC 4.8.3
Product: gcc
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warning: couldn't understand kern.osversion '16.1.0 when make
>From gcc-bugs-return-547138-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:34:44 2016
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From: "fmarchal at perso dot be" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug translation/78745] New: Truncated messages in po file
Date: Fri, 09 Dec 2016 09:34:00 -0000
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Bug ID: 78745
Summary: Truncated messages in po file
Product: gcc
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Multiline parameter descriptions in gcc/c-family/c.opt are truncated in po
files provided to translators.
For instance, on line 1053:
fcheck-pointer-bounds
C ObjC C++ ObjC++ LTO Report Var(flag_check_pointer_bounds)
Add Pointer Bounds Checker instrumentation. fchkp-* flags are used to
control instrumentation. Currently available for C, C++ and ObjC.
is seen by the translator as
#: c-family/c.opt:1055
msgid "Add Pointer Bounds Checker instrumentation. fchkp-* flags are used to"
That message can't be translated as only the first line is visible.
>From gcc-bugs-return-547139-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:34:44 2016
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 09:34:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look.
>From gcc-bugs-return-547140-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:36:48 2016
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Subject: [Bug tree-optimization/78731] Possible bug with switch when optimization is turned on.
Date: Fri, 09 Dec 2016 09:36:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 40285
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40285&action=edit
patch
Ah, finally a testcase! (I have one I can't disclose and thus didn't post the
patch without a good testcase for Jeff to look at)
The issue is that jump threading across backedges may, when following the SSA
value chain, pick up values from a previous iteration.
>From gcc-bugs-return-547141-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:49:08 2016
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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78264] [7 regression] ICE in build_noexcept_spec, at cp/except.c:1196
Date: Fri, 09 Dec 2016 09:49:00 -0000
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--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> thanks for fixing this. Shouldn't we keep the PR open, though? It's
> still an ice-on-invalid.
Given that it didn't raise much interest as ice-on-valid-code, I wouldn't
expect it to raise interest as ice-on-invalid at all. :-)
More seriously, the ICE is not a regression and only enabled with checking:
if (TREE_CODE (expr) == INTEGER_CST)
{
if (operand_equal_p (expr, boolean_true_node, 0))
return noexcept_true_spec;
else
{
gcc_checking_assert (operand_equal_p (expr, boolean_false_node, 0));
return noexcept_false_spec;
}
}
so I wouldn't bother about it.
>From gcc-bugs-return-547142-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:53:57 2016
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Subject: [Bug translation/78745] Truncated messages in po file
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----------------------------------------------------------------------------
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. Newlines need to be removed.
>From gcc-bugs-return-547143-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:54:51 2016
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Subject: [Bug c++/78744] Build errors on OS X 12.1 with Xcode 8.1 on GCC 4.8.3
Date: Fri, 09 Dec 2016 09:54:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |build
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2016-12-09
Version|unknown |4.8.3
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note GCC 4.8.3 is no longer supported, please try GCC 5.4 or newer.
>From gcc-bugs-return-547144-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 09:56:52 2016
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 09:56:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Status|UNCONFIRMED |NEW
Known to work| |5.4.0, 7.0
Keywords| |ice-on-valid-code
Last reconfirmed| |2016-12-09
Ever confirmed|0 |1
Summary|g++ segfaults when printing |[6 Regression] g++
|warning for captured |segfaults when printing
|constexpr variable |warning for captured
| |constexpr variable
Target Milestone|--- |6.3
Known to fail| |6.2.0
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
> g++-6 t.C -B /abuild/rguenther/gcc6-g/gcc
t.C: In function ‘int main()’:
t.C:5:22: warning: capture of variable ‘foo’ with non-automatic storage
duration
auto foobar = [foo](){return (double)foo;};
^~~
‘
Segmentation fault
0x10af970 crash_signal
/space/rguenther/src/svn/gcc-6-branch/gcc/toplev.c:333
0x8cd990 dump_simple_decl
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/error.c:965
0x8ce5b3 dump_decl
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/error.c:1071
0x8d79be decl_to_string
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/error.c:2973
0x8d9a14 cp_printer
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/error.c:3553
0x1ae257c pp_format(pretty_printer*, text_info*)
/space/rguenther/src/svn/gcc-6-branch/gcc/pretty-print.c:632
0x1adb34e diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
/space/rguenther/src/svn/gcc-6-branch/gcc/diagnostic.c:823
0x1adb9e9 inform(unsigned int, char const*, ...)
/space/rguenther/src/svn/gcc-6-branch/gcc/diagnostic.c:954
0x8f0b73 cp_parser_lambda_introducer
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/parser.c:9955
0x8f02e0 cp_parser_lambda_expression
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/parser.c:9711
0x8e5f34 cp_parser_primary_expression
/space/rguenther/src/svn/gcc-6-branch/gcc/cp/parser.c:4935
...
>From gcc-bugs-return-547145-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:03:34 2016
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 10:03:00 -0000
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--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
FWIW, my untested fix was
--- a/gcc/tree-data-ref.c
+++ b/gcc/tree-data-ref.c
@@ -2781,6 +2781,10 @@ can_use_analyze_subscript_affine_affine (tree *chrec_a,
tree *chrec_b)
/* FIXME: For the moment not handled. Might be refined later. */
return false;
+ if (!cst_and_fits_in_hwi (CHREC_RIGHT (*chrec_a))
+ || !cst_and_fits_in_hwi (CHREC_RIGHT (*chrec_b)))
+ return false;
+
type = chrec_type (*chrec_a);
left_a = CHREC_LEFT (*chrec_a);
left_b = chrec_convert (type, CHREC_LEFT (*chrec_b), NULL);
>From gcc-bugs-return-547146-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:06:25 2016
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Subject: [Bug fortran/78746] New: charlen_15.f90, charlen_03, charlen_10 ICE
Date: Fri, 09 Dec 2016 10:06:00 -0000
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Bug ID: 78746
Summary: charlen_15.f90, charlen_03, charlen_10 ICE
Product: gcc
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Target Milestone: ---
Hello,
The new gfortran tests (charlen_15.f90, charlen_03, charlen_10) added at
r243463
are failing on aarch64 and arm, as follows:
on arm-none-linux-gnueabihf:
gfortran.dg/charlen_03.f90 -O (internal compiler error)
gfortran.dg/charlen_10.f90 -O (internal compiler error)
on aarch64-none-linux-gnu and arm-none-linux-gnueabi:
gfortran.dg/charlen_15.f90 -O0 (internal compiler error)
gfortran.dg/charlen_15.f90 -O0 (test for excess errors)
gfortran.dg/charlen_15.f90 -O1 (internal compiler error)
gfortran.dg/charlen_15.f90 -O1 (test for excess errors)
gfortran.dg/charlen_15.f90 -O2 (internal compiler error)
gfortran.dg/charlen_15.f90 -O2 (test for excess errors)
gfortran.dg/charlen_15.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (internal compiler error)
gfortran.dg/charlen_15.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
gfortran.dg/charlen_15.f90 -O3 -g (internal compiler error)
gfortran.dg/charlen_15.f90 -O3 -g (test for excess errors)
gfortran.dg/charlen_15.f90 -Os (internal compiler error)
gfortran.dg/charlen_15.f90 -Os (test for excess errors)
You can have more details by clicking on the related "log" link in the gfortran
column at:
http://people.linaro.org/~christophe.lyon/cross-validation/gcc/trunk/243473/report-build-info.html
>From gcc-bugs-return-547147-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:10:14 2016
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 10:10:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org,
| |mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I think this was fixed with
commit e6db887a54f49ed28f49371d3326cd0143cc7f18
Author: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Sep 16 20:25:17 2016 +0000
PR c++/77482
* error.c (dump_simple_decl): Only check DECL_DECLARED_CONCEPT_P
if DECL_LANG_SPECIFIC is non-NULL. Fix up formatting.
* g++.dg/cpp0x/constexpr-77482.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240198
138bc75d-0d04-0410-961f-82ee72b054a4
I can backport the patch.
>From gcc-bugs-return-547148-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:11:23 2016
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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/65173] ICE while compiling wrong code
Date: Fri, 09 Dec 2016 10:11:00 -0000
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Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ro at gcc dot gnu.org
--- Comment #15 from Rainer Orth <ro at gcc dot gnu.org> ---
Two of the new testcases XPASS on Solaris (i386-pc-solaris2.12,
sparc-sun-solaris2.12, 32 and 64-bit):
XPASS: gfortran.dg/charlen_03.f90 -O (test for excess errors)
XPASS: gfortran.dg/charlen_10.f90 -O (test for excess errors)
Rainer
>From gcc-bugs-return-547149-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:14:56 2016
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 10:14:00 -0000
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That has been backported already, see r243382.
>From gcc-bugs-return-547150-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:16:08 2016
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Subject: [Bug libstdc++/78747] New: Duplicate _S_empty_rep_storage causes crash when STV_HIDDEN
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78747
Bug ID: 78747
Summary: Duplicate _S_empty_rep_storage causes crash when
STV_HIDDEN
Product: gcc
Version: 6.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: jengelh at inai dot de
Target Milestone: ---
The following testcase produces a crashing program.
The gist seems to be that main.o and lib1.o each get a copy of the
std::basic_string<T>::Rep::_M_dispose function, and along with it, the
_ZNSbIDsSt11char_traitsIDsESaIDsEE4_Rep20_S_empty_rep_storageE symbol. They get
marked hidden by the used symbol visiblity file (see below), which means that
they will not be combined by the runtime linker, and each _M_dispose tests for
its own empty_rep only, leading to Undesired Behavior when one _M_dispose gets
the other _S_empty_rep_storage.
void
_M_dispose(const _Alloc& __a) _GLIBCXX_NOEXCEPT
{
#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0
if (__builtin_expect(this != &_S_empty_rep(), false))
#endif
In other words, a situation arises which is loosely described in the gcc
manpage: "-fvisibility-inlines-hidden This switch declares that the user
does not attempt to compare pointers to inline functions or methods", but here,
we have a third case, a static object.
So, are version-scripts with local:* basically incompatible with C++? Trying to
figure out whether this is just a documentation RFE, or whether there is
something that could be done to libstdc++ to improve the situation (abandoning
pointerish comparisons?) Maybe bug #54173 is related too.
---main.cpp--
#include <string>
__attribute__((visibility("default"))) void l1_func(std::u16string &);
int main(void)
{
std::u16string a;
a.append(a);
l1_func(a);
return 0;
}
---lib1.cpp---
#include <string>
__attribute__((visibility("default"))) void l1_func(std::u16string &);
void l1_func(std::u16string &a) {
static const char16_t t[] = {41, 42};
a.append(t, 2);
}
---lib.sym---
ABC { global: *l1_func*; local: *; };
---makeit.sh---
g++ -std=gnu++11 lib1.cpp -shared -fPIC -o lib1.so -Wl,--version-script=lib.sym
g++ -std=gnu++11 ldr.cpp ./lib1.so
--- Observed behavior ---
11:13 zap:/dev/shm/t > ./mk
11:13 zap:/dev/shm/t > ./a.out
*** Error in `./a.out': free(): invalid pointer: 0x00000000006020a0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x721af)[0x7f794e17c1af]
/lib64/libc.so.6(+0x779d6)[0x7f794e1819d6]
/lib64/libc.so.6(+0x78723)[0x7f794e182723]
./lib1.so(+0x149a)[0x7f794ed4b49a]
./lib1.so(+0x140d)[0x7f794ed4b40d]
./lib1.so(+0x11d0)[0x7f794ed4b1d0]
./lib1.so(+0xf19)[0x7f794ed4af19]
./lib1.so(+0xbd8)[0x7f794ed4abd8]
./lib1.so(_Z7l1_funcRSbIDsSt11char_traitsIDsESaIDsEE+0x24)[0x7f794ed4aaaa]
./a.out[0x4009de]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f794e12a6e5]
./a.out[0x400839]
Using built-in specs.
COLLECT_GCC=g++-6
COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/6/lto-wrapper
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada,go
--enable-offload-targets=hsa --enable-checking=release
--with-gxx-include-dir=/usr/include/c++/6 --enable-ssp --disable-libssp
--disable-libvtv --disable-libcc1 --disable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--disable-libgcj --with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--with-default-libstdcxx-abi=gcc4-compatible
--enable-version-specific-runtime-libs --enable-linker-build-id
--enable-linux-futex --enable-gnu-indirect-function --program-suffix=-6
--without-system-libunwind --enable-multilib --with-arch-32=x86-64
--with-tune=generic --build=x86_64-suse-linux --host=x86_64-suse-linux
Thread model: posix
gcc version 6.2.1 20161121 [gcc-6-branch revision 242657] (SUSE Linux)
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 10:21:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78743
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Then let's close this.
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From: "doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78748] New: [7 Regression] ICE in extract_insn, at recog.c:2311 (s390x-linux-gnu)
Date: Fri, 09 Dec 2016 10:22:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78748
Bug ID: 78748
Summary: [7 Regression] ICE in extract_insn, at recog.c:2311
(s390x-linux-gnu)
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
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seen with r243430 on s390x-linux-gnu
configured with --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++
--prefix=/usr --program-suffix=-7 --program-prefix=s390x-linux-gnu-
--enable-shared --enable-linker-build-id --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --libdir=/usr/lib
--enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-libsanitizer --disable-libquadmath
--enable-plugin --enable-default-pie --with-system-zlib --enable-objc-gc=auto
--enable-multiarch --disable-werror --with-arch=zEC12 --with-long-double-128
--enable-multilib --enable-checking=release --build=s390x-linux-gnu
--host=s390x-linux-gnu --target=s390x-linux-gnu
$ cat 32bpp.i
int a, b;
void c() { b = a & ~b; }
$ gcc -c -O2 32bpp.i
32bpp.i: In function 'c':
32bpp.i:2:1: error: unrecognizable insn:
void c() { b = a & ~b; }
^~~~
(insn 17 16 0 2 (parallel [
(set (mem/c:SI (reg/f:DI 64) [1 b+0 S4 A32])
(xor:SI (reg:SI 71)
(mem/c:SI (reg/f:DI 68) [1 a+0 S4 A32])))
(clobber (reg:CC 33 %cc))
]) "32bpp.i":2 -1
(expr_list:REG_DEAD (reg:SI 71)
(expr_list:REG_DEAD (reg/f:DI 68)
(expr_list:REG_DEAD (reg/f:DI 64)
(expr_list:REG_UNUSED (reg:CC 33 %cc)
(nil))))))
32bpp.i:2:1: internal compiler error: in extract_insn, at recog.c:2311
0x15ce0dd _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../src/gcc/rtl-error.c:108
0x15ce11d _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../src/gcc/rtl-error.c:116
0x159d26f extract_insn(rtx_insn*)
../../src/gcc/recog.c:2311
0x14a3725 scan_one_insn
../../src/gcc/ira-costs.c:1432
0x14a3725 process_bb_for_costs
../../src/gcc/ira-costs.c:1593
0x14a5dcd find_costs_and_classes
../../src/gcc/ira-costs.c:1700
0x14a66eb ira_set_pseudo_classes(bool, _IO_FILE*)
../../src/gcc/ira-costs.c:2240
0x1b04a7f alloc_global_sched_pressure_data
../../src/gcc/haifa-sched.c:7230
0x1b04a7f sched_init()
../../src/gcc/haifa-sched.c:7383
0x1b05fd7 haifa_sched_init()
../../src/gcc/haifa-sched.c:7395
0x15e2375 schedule_insns()
../../src/gcc/sched-rgn.c:3490
0x15e2b29 schedule_insns()
../../src/gcc/sched-rgn.c:3484
0x15e2b29 rest_of_handle_sched
../../src/gcc/sched-rgn.c:3703
0x15e2b29 execute
../../src/gcc/sched-rgn.c:3811
Please submit a full bug report,
with preprocessed source if appropriate.
>From gcc-bugs-return-547153-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:27:26 2016
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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 10:27:00 -0000
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--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 9 Dec 2016, mpolacek at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78742
>
> --- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
> FWIW, my untested fix was
>
> --- a/gcc/tree-data-ref.c
> +++ b/gcc/tree-data-ref.c
> @@ -2781,6 +2781,10 @@ can_use_analyze_subscript_affine_affine (tree *chrec_a,
> tree *chrec_b)
> /* FIXME: For the moment not handled. Might be refined later. */
> return false;
>
> + if (!cst_and_fits_in_hwi (CHREC_RIGHT (*chrec_a))
> + || !cst_and_fits_in_hwi (CHREC_RIGHT (*chrec_b)))
> + return false;
> +
> type = chrec_type (*chrec_a);
> left_a = CHREC_LEFT (*chrec_a);
> left_b = chrec_convert (type, CHREC_LEFT (*chrec_b), NULL);
In fact initialize_matrix_A relies on the value fitting an int ...
I'll see to a better fix.
>From gcc-bugs-return-547154-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:31:49 2016
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From: "bjarni.sigurdsson at marel dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 10:31:00 -0000
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--- Comment #6 from bjarni.sigurdsson at marel dot com ---
Is this fix part of 6.2.1 ?
>From gcc-bugs-return-547155-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:43:38 2016
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 10:43:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78743
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
6.2.1 stands for a 6 branch snapshot in between the 6.2 and 6.3 releases. Most
of those snapshots of course don't have that fix, only those from the last day
and half or so do. 6.3 is planned to be released in less than 2 weeks if all
goes well.
>From gcc-bugs-return-547156-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:50:45 2016
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
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--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is also that
bool
cst_and_fits_in_hwi (const_tree x)
{
return (TREE_CODE (x) == INTEGER_CST
&& TYPE_PRECISION (TREE_TYPE (x)) <= HOST_BITS_PER_WIDE_INT);
}
returns false for a __int128 constant of value 1.
And that tree-data-ref.c happily uses int's to store the result of
int_cst_value.
>From gcc-bugs-return-547157-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 10:56:30 2016
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 10:56:00 -0000
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--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Yea, I noticed these as well. Let me know if you want me to do some cleanups
here.
>From gcc-bugs-return-547158-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 11:06:18 2016
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Subject: [Bug c++/78749] New: [7 Regression] bogus warning for friend member function in anonymous namespace
Date: Fri, 09 Dec 2016 11:06:00 -0000
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Bug ID: 78749
Summary: [7 Regression] bogus warning for friend member
function in anonymous namespace
Product: gcc
Version: 7.0
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% cat t.ii
namespace {
template <typename> struct A {
friend void foo() {}
};
struct C : A<int> {};
}
% g++ -Wall -c t.ii
MallocChecker.ii:3:15: warning: ‘void {anonymous}::foo()’ declared ‘static’ but
never defined [-Wunused-function]
friend void foo() {}
^~~
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Subject: [Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable
Date: Fri, 09 Dec 2016 11:07:00 -0000
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--- Comment #8 from bjarni.sigurdsson at marel dot com ---
Sorry, I mixed up the dates in the changelog (2016-09-16 vs. 2016-12-07)
Of course I don't expect a 36 hour fix to be available in an older snapshot :)
Thanks for the quick response. We will wait for 6.3.
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Subject: [Bug tree-optimization/78742] [5/6/7 Regression] internal compiler error: in int_cst_value, at tree.c:10782
Date: Fri, 09 Dec 2016 11:18:00 -0000
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--- Comment #9 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 9 Dec 2016, mpolacek at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78742
>
> --- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
> Yea, I noticed these as well. Let me know if you want me to do some cleanups
> here.
I think a good move would be to make those 'int's HOST_WIDE_INTs (it looks
like there's a lot of places to fix though).
Actually catching the doesn-not-fit issue would be still something
separate (and also catch the overflow in the multiplication...).
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Subject: [Bug tree-optimization/78731] [5 Regression] Possible bug with switch when optimization is turned on.
Date: Fri, 09 Dec 2016 11:18:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Known to work| |4.9.4, 6.1.0
Target Milestone|--- |5.5
Summary|Possible bug with switch |[5 Regression] Possible bug
|when optimization is turned |with switch when
|on. |optimization is turned on.
Known to fail| |5.4.0
>From gcc-bugs-return-547162-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 11:29:18 2016
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Subject: [Bug sanitizer/78708] [7 Regression][ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN
Date: Fri, 09 Dec 2016 11:29:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
Ever confirmed|0 |1
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Ok, just verified this is already older problem e.g. with UBSAN_VPTR internal
call.
Testcase:
cp -a .../gcc/testsuite/g++.dg/ubsan/vptr-11.C .
./xg++ -B ./ -c -O2 -fsanitize=vptr vptr-11.C -o vptr-11.o -flto
./xg++ -B ./ -r -O2 -o vptr-11.ro vptr-11.o -flto -nostdlib
vptr-11.C: In function ‘foo’:
vptr-11.C:63:8: internal compiler error: in expand_UBSAN_VPTR, at
internal-fn.c:356
p->f ();
^
0xa8178e expand_UBSAN_VPTR
../../gcc/internal-fn.c:356
0xa8b0a6 expand_internal_call(internal_fn, gcall*)
../../gcc/internal-fn.c:2783
0xa8b0d1 expand_internal_call(gcall*)
../../gcc/internal-fn.c:2791
0x7c941f expand_call_stmt
../../gcc/cfgexpand.c:2569
0x7ccc8e expand_gimple_stmt_1
../../gcc/cfgexpand.c:3571
0x7cd365 expand_gimple_stmt
../../gcc/cfgexpand.c:3737
0x7d4451 expand_gimple_basic_block
../../gcc/cfgexpand.c:5744
0x7d5e59 execute
../../gcc/cfgexpand.c:6355
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: fatal error: ./xg++ returned 1 exit status
compilation terminated.
/usr/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
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Subject: [Bug tree-optimization/78699] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu (memory-hog)
Date: Fri, 09 Dec 2016 11:38:00 -0000
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
#12 0x00000000013e3c0a in vectorizable_load (
stmt=<gimple_assign 0x2aaaaec39780>, gsi=0x7fffffffd140,
vec_stmt=0x7fffffffd058, slp_node=0x296b970, slp_node_instance=0x278b4e0)
at /space/rguenther/src/svn/trunk/gcc/tree-vect-stmts.c:7455
7455 stmt, NULL_TREE);
(gdb) l
7450 {
7451 for (i = 0; i < vec_num; i++)
7452 {
7453 if (i > 0)
7454 dataref_ptr = bump_vector_ptr (dataref_ptr, ptr_incr,
gsi,
7455 stmt, NULL_TREE);
7456
7457 /* 2. Create the vector-load in the loop. */
7458 switch (alignment_support_scheme)
7459 {
(gdb) p vec_num
$1 = 7406755
ah, I thought we have fixed all those instances... (ah, no, I fixed cost
calculation!)
(gdb) p stmt_info->gap
$7 = 14716900
So the ultimate issue is that we are kind-of stupid when generating code
for SLP permutations. Maybe it's time to fix that...
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Subject: [Bug c++/78749] [7 Regression] bogus warning for friend member function in anonymous namespace
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
Target Milestone|--- |7.0
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Subject: [Bug middle-end/78748] [7 Regression] ICE in extract_insn, at recog.c:2311 (s390x-linux-gnu)
Date: Fri, 09 Dec 2016 11:39:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |7.0
>From gcc-bugs-return-547166-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 11:41:38 2016
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Subject: [Bug c++/78749] [7 Regression] bogus warning for friend member function in anonymous namespace
Date: Fri, 09 Dec 2016 11:41:00 -0000
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |jason at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Started with r242056:
commit 31db86df8fa1d3248c97de6c47dbd76fb74eaa8e
Author: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Nov 10 21:42:36 2016 +0000
PR c++/77337 - auto return and lambda
>From gcc-bugs-return-547167-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 11:43:25 2016
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Subject: [Bug c++/78749] [7 Regression] bogus warning for friend member function in anonymous namespace
Date: Fri, 09 Dec 2016 11:43:00 -0000
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--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
This warning happens a lot when compiling LLVM (for friend operators).
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Subject: [Bug rtl-optimization/78610] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
Date: Fri, 09 Dec 2016 11:48:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
No backport planned anymore; no problems seen "in the wild", and the
related bugfixes are too invasive to backport. I cannot get this to
fail on 6 or older, either. Closing as fixed.
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Subject: [Bug middle-end/78750] New: [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
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Bug ID: 78750
Summary: [7 Regression] ICE in get_range_info, at
tree-ssanames.c:375
Product: gcc
Version: 7.0
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seen with r243430
$ cat DateTime.ii
template <typename> using b = void;
template <typename, typename, template <typename...> class, typename...>
struct c {
using a = int;
};
template <typename aa, template <typename...> class d, typename... e>
struct c<aa, b<d<e...>>, d, e...> {
using a = d<e...>;
};
template <typename aa, template <typename...> class d, typename... e>
using f = c<aa, void, d, e...>;
template <typename aa, template <typename...> class d, typename... e>
using g = typename f<aa, d, e...>::a;
template <template <typename...> class aa, template <typename...> class d,
typename... e>
using h = g<aa<e...>, d, e...>;
template <typename, typename> using i = int;
class ab {
template <typename> struct j { typedef ab k; };
};
struct l {
template <typename ac, typename n> using o = typename ac::template j<n>::k;
template <typename q> using r = typename q::d;
template <typename q> using ae = typename q::f;
};
template <typename ac, typename n> using ag = h<i, l::o, ac, n>;
struct s : l {
using ad = g<char, r>;
using af = g<int, ae>;
template <typename q> using w = ag<ab, q>;
};
struct ah : s {
template <typename> struct ak { typedef w<int> k; };
};
int u;
class al {
public:
struct x {
x(ah::ad, ab);
} ai;
template <typename aj> void y(aj, aj);
ah::ak<char>::k am();
al(const al &) : ai(0, am()) {
int v = ao();
y(u, v);
}
ab z;
al(const char *) : ai(0, z) {}
ah::af ao() const;
};
extern "C" char *strcpy(char *, const char *);
int an(char *, const char *, long);
class aq {};
template <class ap> class ar : public aq {
public:
ar(al, ap as) : m(m) { char t = *strcpy(&t, as); }
al m;
};
class at {
public:
template <class ap> at(al aw, ap &as) : p(new ar<ap>(aw, as)) {}
aq *p;
};
enum au { av };
class ax {
public:
ax(al);
template <class ap> void ay(au, al as, ap &az) { at(as, az); }
};
class ba {
ba(const al &);
};
ax a("");
ba::ba(const al &aw) {
if (aw.ao() == 4) {
char b[1];
if (an(b, "", 3))
if (an(b, "", 3))
if (an(b, "", 3))
if (an(b, "", 3))
if (an(b, "", 3))
a.ay(av, "", b);
}
}
$ g++ -c -O2 -Wno-deprecated DateTime.ii
DateTime.ii: In constructor 'at::at(al, ap&) [with ap = char [1]]':
DateTime.ii:56:42: internal compiler error: in get_range_info, at
tree-ssanames.c:375
ar(al, ap as) : m(m) { char t = *strcpy(&t, as); }
~~~~~~^~~~~~~~
0xca7bdf get_range_info(tree_node const*, generic_wide_int<wide_int_storage>*,
generic_wide_int<wide_int_storage>*)
../../src/gcc/tree-ssanames.c:375
0x792217 get_size_range
../../src/gcc/builtins.c:3031
0x793855 check_sizes
../../src/gcc/builtins.c:3136
0x79e846 expand_builtin_strcpy
../../src/gcc/builtins.c:3597
0x79e846 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
../../src/gcc/builtins.c:6694
0x89864b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../src/gcc/expr.c:10772
0x7b6a94 expand_expr
../../src/gcc/expr.h:276
0x7b6a94 expand_call_stmt
../../src/gcc/cfgexpand.c:2658
0x7b6a94 expand_gimple_stmt_1
../../src/gcc/cfgexpand.c:3571
0x7b6a94 expand_gimple_stmt
../../src/gcc/cfgexpand.c:3737
0x7b794f expand_gimple_basic_block
../../src/gcc/cfgexpand.c:5744
0x7bcb26 execute
../../src/gcc/cfgexpand.c:6355
Please submit a full bug report,
with preprocessed source if appropriate.
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Subject: [Bug fortran/44265] Link error with reference to parameter array in specification expression
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--- Comment #18 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Fri Dec 9 11:55:27 2016
New Revision: 243478
URL: https://gcc.gnu.org/viewcvs?rev=243478&root=gcc&view=rev
Log:
2016-12-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/44265
* gfortran.h : Add fn_result_spec bitfield to gfc_symbol.
* resolve.c (flag_fn_result_spec): New function.
(resolve_fntype): Call it for character result lengths.
* symbol.c (gfc_new_symbol): Set fn_result_spec to zero.
* trans-decl.c (gfc_sym_mangled_identifier): Include the
procedure name in the mangled name for symbols with the
fn_result_spec bit set.
(gfc_finish_var_decl): Mark the decls of these symbols
appropriately for the case where the function is external.
(gfc_get_symbol_decl): Mangle the name of these symbols.
(gfc_create_module_variable): Allow them through the assert.
(gfc_generate_function_code): Remove the assert before the
initialization of sym->tlink because the frontend no longer
uses this field.
* trans-expr.c (gfc_map_intrinsic_function): Add a case to
treat the LEN_TRIM intrinsic.
(gfc_trans_string_copy): Deal with Wstringop-overflow warning
that can occur with constant source lengths at -O3.
2016-12-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/44265
* gfortran.dg/char_result_14.f90: New test.
* gfortran.dg/char_result_15.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/char_result_14.f90
trunk/gcc/testsuite/gfortran.dg/char_result_15.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/resolve.c
trunk/gcc/fortran/symbol.c
trunk/gcc/fortran/trans-decl.c
trunk/gcc/fortran/trans-expr.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug rtl-optimization/78727] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2656 (error: flow control insn inside a basic block)
Date: Fri, 09 Dec 2016 12:03:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
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--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Confirmed.
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Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 12:04:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
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--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed, must be a recent regression.
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Subject: [Bug tree-optimization/78699] [7 Regression] ICE (segfault) on powerpc64le-linux-gnu (memory-hog)
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, not easily (that's even an understatement...). It's going to be
Index: gcc/tree-vect-data-refs.c
===================================================================
--- gcc/tree-vect-data-refs.c (revision 243474)
+++ gcc/tree-vect-data-refs.c (working copy)
@@ -2390,7 +2416,7 @@ vect_analyze_group_access_1 (struct data
if (groupsize == 0)
groupsize = count + gaps;
- if (groupsize > UINT_MAX)
+ if (groupsize > 4096)
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
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| |trippels at gcc dot gnu.org
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Most likely r243419.
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Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
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--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed it's r243419.
>From gcc-bugs-return-547176-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 12:19:13 2016
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Subject: [Bug c++/78550] [6/7 Regression] bit field and std::initializer_list
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--- Comment #2 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Fri Dec 9 12:18:36 2016
New Revision: 243479
URL: https://gcc.gnu.org/viewcvs?rev=243479&root=gcc&view=rev
Log:
PR c++/78550
* convert.c (convert_to_integer_1): Maybe fold conversions to
integral types with fewer bits than its mode.
testsuite/
PR c++/78550
* g++.dg/cpp1y/pr78550.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp1y/pr78550.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/convert.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug c++/78744] Build errors on OS X 12.1 with Xcode 8.1 GCC 6.2.0
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aroldan <aroldan at protonmail dot ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Build errors on OS X 12.1 |Build errors on OS X 12.1
|with Xcode 8.1 on GCC 6.2.0 |with Xcode 8.1 GCC 6.2.0
--- Comment #2 from aroldan <aroldan at protonmail dot ch> ---
c++: warning: couldn't understand kern.osversion '16.1.0
Undefined symbols for architecture x86_64:
>From gcc-bugs-return-547178-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 12:30:46 2016
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Subject: [Bug fortran/44265] Link error with reference to parameter array in specification expression
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--- Comment #19 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 40286
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40286&action=edit
Failing testcases with -flto under Darwin
The PR is fixed under Linux but gives a link error under Darwin with -flto.
From Dominique's message to the list on 7th December:
The tests gfortran.dg/char_result_16.f90 and gfortran.dg/char_result_17.f90
fail with
lto1: error: two or more sections for
.gnu.lto___get_PROC_names.3e3ee55b08747e7c
lto1: internal compiler error: cannot read LTO decls from
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccEJosbA.o
This may be darwin specific as the linker is more picky than the linux one.
As soon as the cause is identified, the two attached testcases can be added to
the testsuite.
Cheers
Paul
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Subject: [Bug tree-optimization/78189] [5 Regression] movaps generated for unaligned store in aligned struct, when struct is referenced via unaligned member.
Date: Fri, 09 Dec 2016 12:36:00 -0000
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 9 12:35:56 2016
New Revision: 243481
URL: https://gcc.gnu.org/viewcvs?rev=243481&root=gcc&view=rev
Log:
2016-12-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2016-11-09 Richard Biener <rguenther@suse.de>
* tree-vect-data-refs.c (vect_compute_data_ref_alignment):
Look at the DR_BASE_ADDRESS object for forcing alignment.
2016-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/78189
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Fix
alignment computation.
* g++.dg/torture/pr78189.C: New testcase.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr78189.C
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/tree-vect-data-refs.c
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 12:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78750
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Target Milestone|--- |7.0
>From gcc-bugs-return-547181-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 12:47:44 2016
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Subject: [Bug fortran/78505] [F08] Coarray source allocation not synchronizing on oversubscribed cores
Date: Fri, 09 Dec 2016 12:47:00 -0000
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--- Comment #3 from vehre at gcc dot gnu.org ---
Author: vehre
Date: Fri Dec 9 12:46:57 2016
New Revision: 243482
URL: https://gcc.gnu.org/viewcvs?rev=243482&root=gcc&view=rev
Log:
gcc/fortran/ChangeLog:
2016-12-09 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/78505
* trans-stmt.c (gfc_trans_allocate): Add sync all after the execution
of the whole allocate-statement to adhere to the standard.
gcc/testsuite/ChangeLog:
2016-12-09 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/78505
* gfortran.dg/coarray_alloc_with_implicit_sync_1.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/coarray_alloc_with_implicit_sync_1.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/trans-stmt.c
trunk/gcc/testsuite/ChangeLog
>From gcc-bugs-return-547182-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 12:49:59 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/78751] New: [7 Regression] ICE in extract_insn, at recog.c:2311 (error: unrecognizable insn) w/ -Os -misel
Date: Fri, 09 Dec 2016 12:49:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78751
Bug ID: 78751
Summary: [7 Regression] ICE in extract_insn, at recog.c:2311
(error: unrecognizable insn) w/ -Os -misel
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu*
1. gcc-7.0.0-alpha20161204 snapshot ICEs when compiling the following reduced
snippet:
long long int ow;
int
sf (int xs, short int go)
{
short int qu = (go > 0) ^ !!ow;
if (qu != 0)
for (qu = 1; qu != 0; ++qu)
{
}
else
for (;;)
if (go != 0)
go = &qu;
return xs / 0;
}
% powerpc-e300c3-linux-gnu-gcc-7.0.0-alpha20161204 -misel -Os -w -c akrtpsd2.c
akrtpsd2.c: In function 'sf':
akrtpsd2.c:18:1: error: unrecognizable insn:
}
^
(insn 64 63 65 2 (set (reg:SI 190)
(ne:SI (reg:CC 179)
(const_int 0 [0]))) -1
(nil))
akrtpsd2.c:18:1: internal compiler error: in extract_insn, at recog.c:2311
0x3125251cc35 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/rtl-error.c:108
0x3125251cc8c _fatal_insn_not_found(rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/rtl-error.c:116
0x312524e7d6f extract_insn(rtx_insn*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/recog.c:2311
0x31252cf82d9 decompose_multiword_subregs
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/lower-subreg.c:1467
0x31252cf97fc execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/lower-subreg.c:1734
2. gcc ICEs in elimination_costs_in_insn after changing the testcase in the
following ways:
--- akrtpsd2.c 2016-12-09 19:44:19.516180848 +0700
+++ u0fm5eug.c 2016-12-09 19:43:22.040670924 +0700
@@ -1,4 +1,4 @@
-long long int ow;
+long int ow;
int
sf (int xs, short int go)
or
--- akrtpsd2.c 2016-12-09 19:47:55.879831963 +0700
+++ mtgaxlsn.c 2016-12-09 19:47:44.145614943 +0700
@@ -3,7 +3,7 @@ long long int ow;
int
sf (int xs, short int go)
{
- short int qu = (go > 0) ^ !!ow;
+ short int qu = (go > 0) ^ !!go;
if (qu != 0)
for (qu = 1; qu != 0; ++qu)
% powerpc-e300c3-linux-gnu-gcc-7.0.0-alpha20161204 -misel -w -Os -c u0fm5eug.c
u0fm5eug.c: In function 'sf':
u0fm5eug.c:18:1: internal compiler error: in elimination_costs_in_insn, at
reload1.c:3615
}
^
0x30cbc1b6ede elimination_costs_in_insn
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/reload1.c:3612
0x30cbc1b7a4f calculate_elim_costs_all_insns()
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/reload1.c:1607
0x30cbc053536 ira_costs()
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/ira-costs.c:2222
0x30cbc04c549 ira_build()
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/ira-build.c:3420
0x30cbc0425dc ira
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/ira.c:5222
0x30cbc0425dc execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20161204/work/gcc-7-20161204/gcc/ira.c:5527
Both ICEs can also be reproduced w/ e500 gnuspe target (where -misel is on by
default).
>From gcc-bugs-return-547183-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 12:59:10 2016
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Subject: [Bug libstdc++/78713] [missed optimization] gcc doesn't use clobbers to optimize constructors
Date: Fri, 09 Dec 2016 12:59:00 -0000
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--- Comment #2 from Avi Kivity <avi@cloudius-systems.com> ---
I think the middle-end knows it is safe to write to *this, because this is
happening in a constructor, so all of the object's memory is known clobbered.
Similarly, if the assignment operator is written as
optional& optional::operator=(optional&& x) noexcept(...) {
if (this != &x) {
this->~optional();
new (this) optional(std::move(x));
}
}
then it has the same information during assignment.
Implementation in the middle end is more useful, because then you don't need
very careful coding of the type, or to depend on is_trivial_foo<>; more user
code will benefit.
>From gcc-bugs-return-547184-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 13:01:38 2016
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Subject: [Bug fortran/78505] [F08] Coarray source allocation not synchronizing on oversubscribed cores
Date: Fri, 09 Dec 2016 13:01:00 -0000
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--- Comment #4 from vehre at gcc dot gnu.org ---
Waiting one week for regression reports.
>From gcc-bugs-return-547185-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 13:06:27 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78713] [missed optimization] gcc doesn't use clobbers to optimize constructors
Date: Fri, 09 Dec 2016 13:06:00 -0000
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Currently the middle-end only knows about constructors via
DECL_CXX_CONSTRUCTOR_P. I suppose it would be more useful to communicate that
a function fully initializes an object pointed to by parameter X.
That said, still easier to handle in libstdc++. The middle-end needs that
extra info to make the store unconditional (it would be still a very odd
transform...)
>From gcc-bugs-return-547186-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 13:07:06 2016
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 13:07:00 -0000
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--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The following should fix it.
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 20515e7..08bf148 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -3025,7 +3025,8 @@ get_size_range (tree exp, tree range[2])
return true;
}
- if (TREE_CODE (exp) == SSA_NAME)
+ tree type = TREE_TYPE (exp);
+ if (TREE_CODE (exp) == SSA_NAME && INTEGRAL_TYPE_P (type))
{
wide_int min, max;
enum value_range_type range_type = get_range_info (exp, &min, &max);
@@ -3033,8 +3034,8 @@ get_size_range (tree exp, tree range[2])
if (range_type == VR_RANGE)
{
/* Interpret the bound in the variable's type. */
- range[0] = wide_int_to_tree (TREE_TYPE (exp), min);
- range[1] = wide_int_to_tree (TREE_TYPE (exp), max);
+ range[0] = wide_int_to_tree (type, min);
+ range[1] = wide_int_to_tree (type, max);
return true;
}
else if (range_type == VR_ANTI_RANGE)
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Subject: [Bug rtl-optimization/78751] [7 Regression] ICE in extract_insn, at recog.c:2311 (error: unrecognizable insn) w/ -Os -misel
Date: Fri, 09 Dec 2016 13:15:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78751
Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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>From gcc-bugs-return-547188-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 13:16:17 2016
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From: "avi@cloudius-systems.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78713] [missed optimization] gcc doesn't use clobbers to optimize constructors
Date: Fri, 09 Dec 2016 13:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78713
--- Comment #4 from Avi Kivity <avi@cloudius-systems.com> ---
This bug has a cousin https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61982 where
the optimizer doesn't eliminate a store to an object that is about to be
destroyed. While for sure it is easier to implement in the library, I think
there is a lot of potential for similar optimizations if the optimizer does get
the information it craves.
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Subject: [Bug fortran/61767] [OOP] ICE in generate_finalization_wrapper at fortran/class.c:1491
Date: Fri, 09 Dec 2016 13:22:00 -0000
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--- Comment #11 from janus at gcc dot gnu.org ---
Author: janus
Date: Fri Dec 9 13:21:44 2016
New Revision: 243483
URL: https://gcc.gnu.org/viewcvs?rev=243483&root=gcc&view=rev
Log:
2016-12-09 Janus Weil <janus@gcc.gnu.org>
PR fortran/61767
* class.c (has_finalizer_component): Fix this function to detect only
non-pointer non-allocatable components which have a finalizer.
2016-12-09 Janus Weil <janus@gcc.gnu.org>
PR fortran/61767
* gfortran.dg/finalize_31.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/finalize_31.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/class.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug fortran/61767] [OOP] ICE in generate_finalization_wrapper at fortran/class.c:1491
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janus at gcc dot gnu.org changed:
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----------------------------------------------------------------------------
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--- Comment #12 from janus at gcc dot gnu.org ---
Fixed with r243483 on 7-trunk. Closing.
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Subject: [Bug fortran/37336] [F03] Finish derived-type finalization
Date: Fri, 09 Dec 2016 13:23:00 -0000
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Bug 37336 depends on bug 61767, which changed state.
Bug 61767 Summary: [OOP] ICE in generate_finalization_wrapper at fortran/class.c:1491
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61767
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 13:26:00 -0000
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--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Actually, this should be better:
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -3091,7 +3091,7 @@ check_sizes (int opt, tree exp, tree size, tree maxlen,
tree str, tree objsize)
{
/* STR is normally a pointer to string but as a special case
it can be an integer denoting the length of a string. */
- if (TREE_CODE (TREE_TYPE (str)) == POINTER_TYPE)
+ if (POINTER_TYPE_P (TREE_TYPE (str)))
{
/* Try to determine the range of lengths the source string
refers to. If it can be determined add one to it for
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From: "tcbrindle at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78752] New: [concepts] ICE with constrained variadic member function
Date: Fri, 09 Dec 2016 13:27:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78752
Bug ID: 78752
Summary: [concepts] ICE with constrained variadic member
function
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tcbrindle at gmail dot com
Target Milestone: ---
Created attachment 40287
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40287&action=edit
Short test case causing ICE
Test code:
#include <type_traits>
template <class T, class U>
concept bool Same = std::is_same<T, U>::value;
struct test {
template <Same<int>... Ints>
void func(Ints... ints) {}
};
int main()
{
test t;
t.func(1, 2, 3);
}
Compiling with g++ -fconcepts -std=c++17 gives:
concepts_ice.cpp: In substitution of 'template<class ... Ints> requires
Same<Ints, int>... void test::func(Ints ...) [with Ints = {int, int, int}]':
concepts_ice.cpp:14:19: required from here
concepts_ice.cpp:9:10: internal compiler error: in tsubst_constraint, at
cp/constraint.cc:1957
void func(Ints... ints) {}
^~~~
concepts_ice.cpp:9:10: internal compiler error: Abort trap: 6
g++-6: internal compiler error: Abort trap: 6 (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
----
If we replace the member function definition with the more verbose
struct test {
template <class... Ints>
requires (Same<Ints, int> && ...)
void func(Ints... ints) {}
};
then this compiles correctly. Replacing it with the abbreviated syntax
struct test {
void func(Same<int>... ints) {}
};
gives "constraints not satisfied" when calling `test{}.func(1, 2, 3);`, but no
ICE.
This seems to be specific to member functions: the free function
template <Same<int>... Ints>
void func(Ints... ints) {}
func(1, 2, 3);
works as expected, but the abbreviated version
void func(Same<int>... ints) {}
still reports constraints not satisfied.
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Subject: [Bug tree-optimization/78725] [7 Regression] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
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Michael Matz <matz at gcc dot gnu.org> changed:
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--- Comment #2 from Michael Matz <matz at gcc dot gnu.org> ---
Mine.
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Subject: [Bug tree-optimization/78725] [7 Regression] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
Date: Fri, 09 Dec 2016 13:43:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
>From gcc-bugs-return-547196-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 13:47:00 2016
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From: "jgreenhalgh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78696] [7 Regression] -fprintf-return-value misoptimizes %.Ng where N is greater than 10
Date: Fri, 09 Dec 2016 13:47:00 -0000
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--- Comment #14 from James Greenhalgh <jgreenhalgh at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #13)
> Created attachment 40272 [details]
> Lightly tested patch.
>
> (In reply to Martin Sebor from comment #6)
>
> After some more testing, although the patch I showed happens to fix the
> problem in the test case, it's not actually correct. I found a few other
> subtle issues in the function that need to fixed. I'm testing a more
> comprehensive patch that should fix it the right way.
This patch also fixes the issue I've been seeing with the code base which is
being miscompiled.
Did you accidentally commit it as part of r243419? I don't see the changes
marked in your ChangeLog, nor did you tag that revision as a fix for this bug,
but the code above has found its way in to trunk, and so the failures I've been
seeing with our code base have been fixed.
I've got no opinion on whether the pass should be disabled by default - I do
agree with Joseph's points that this seems like it has the potential to
introduce or mask some very frightening security issues if a library is
non-conformant.
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 13:48:00 -0000
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--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Reduced:
extern "C" char *strcpy (char *, const char *);
void
fn (char *p, char &as)
{
strcpy (p, &as);
}
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
Date: Fri, 09 Dec 2016 13:59:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
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--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Testing the latter patch.
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/78752] [concepts] ICE with constrained variadic member function
Date: Fri, 09 Dec 2016 14:00:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |jason at gcc dot gnu.org,
| |marxin at gcc dot gnu.org
Known to work| |6.1.0
Ever confirmed|0 |1
Known to fail| |6.2.0, 7.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r238558.
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From: "barry.revzin at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/78753] New: non-ambiguous overload resolution with function template partial ordering rules
Date: Fri, 09 Dec 2016 14:03:00 -0000
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Bug ID: 78753
Summary: non-ambiguous overload resolution with function
template partial ordering rules
Product: gcc
Version: 6.2.0
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In this example:
template <class...> struct pack { };
// (1)
template <class T>
void foo(pack<T> ) { }
// (2)
template <class T, class... Ts>
void foo(pack<T, Ts...> ) { }
int main() {
foo(pack<int>{});
}
gcc (every version I've tried) accepts the code and invokes (1). But
[temp.deduct.type]/9 states arguments that come from pack expansions should be
ignored if P does not contain a template argument corresponding to it - which
is the case here. So partial ordering deduction should succeed in both cases,
making this ambiguous.
Unfortunately.
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From: "nathan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/78550] [6/7 Regression] bit field and std::initializer_list
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--- Comment #3 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Fri Dec 9 14:04:53 2016
New Revision: 243484
URL: https://gcc.gnu.org/viewcvs?rev=243484&root=gcc&view=rev
Log:
PR c++/78550
* convert.c (convert_to_integer_1): Maybe fold conversions to
integral types with fewer bits than its mode.
testsuite/
PR c++/78550
* g++.dg/cpp1y/pr78550.C: New.
Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/pr78550.C
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/convert.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78593] [6/7 Regression] ICE in gfc_match_varspec, at fortran/primary.c:2053
Date: Fri, 09 Dec 2016 14:07:00 -0000
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--- Comment #5 from janus at gcc dot gnu.org ---
Author: janus
Date: Fri Dec 9 14:06:47 2016
New Revision: 243485
URL: https://gcc.gnu.org/viewcvs?rev=243485&root=gcc&view=rev
Log:
2016-12-09 Janus Weil <janus@gcc.gnu.org>
Backport from trunk
PR fortran/78593
* primary.c (gfc_match_varspec): Check if sym is non-null to avoid ICE.
2016-12-09 Janus Weil <janus@gcc.gnu.org>
Backport from trunk
PR fortran/78593
* gfortran.dg/derived_result.f90: New test case.
Added:
branches/gcc-6-branch/gcc/testsuite/gfortran.dg/derived_result.f90
Modified:
branches/gcc-6-branch/gcc/fortran/ChangeLog
branches/gcc-6-branch/gcc/fortran/primary.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog
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Subject: [Bug tree-optimization/78696] [7 Regression] -fprintf-return-value misoptimizes %.Ng where N is greater than 10
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--- Comment #15 from James Greenhalgh <jgreenhalgh at gcc dot gnu.org> ---
(In reply to James Greenhalgh from comment #14)
> Did you accidentally commit it as part of r243419? I don't see the changes
> marked in your ChangeLog, nor did you tag that revision as a fix for this
> bug, but the code above has found its way in to trunk, and so the failures
> I've been seeing with our code base have been fixed.
I take that back, it is the fix in comment #6 that I see in tree, not the
expanded fix from comment #13.
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Subject: [Bug c++/78550] [6/7 Regression] bit field and std::initializer_list
Date: Fri, 09 Dec 2016 14:08:00 -0000
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Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #4 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Fixed on trunk & 6 branches
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Subject: [Bug c++/78749] [7 Regression] bogus warning for friend member function in anonymous namespace
Date: Fri, 09 Dec 2016 14:10:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
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CC| |mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This is because we no longer set DECL_INITIAL when tsubst_friend_function, so
924 if (TREE_CODE (decl) == FUNCTION_DECL
925 && DECL_INITIAL (decl) == 0
is true in wrapup_globals_for_namespace.
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Subject: [Bug fortran/78593] [6/7 Regression] ICE in gfc_match_varspec, at fortran/primary.c:2053
Date: Fri, 09 Dec 2016 14:10:00 -0000
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janus at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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Target Milestone|6.4 |6.3
--- Comment #6 from janus at gcc dot gnu.org ---
Fixed for the upcoming releases 7.0 and 6.3. Closing.
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Subject: [Bug target/78516] [7 Regression] ICE in lra_assign for e500v2
Date: Fri, 09 Dec 2016 14:21:00 -0000
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--- Comment #2 from Peter Bergner <bergner at gcc dot gnu.org> ---
So we're hitting this code in lra-assigns.c:lra_assign():1612:
if (flag_checking && !flag_ipa_ra)
for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++)
if (lra_reg_info[i].nrefs != 0 && reg_renumber[i] >= 0
&& lra_reg_info[i].call_p
&& overlaps_hard_reg_set_p (call_used_reg_set,
PSEUDO_REGNO_MODE (i), reg_renumber[i]))
gcc_unreachable ();
Our pseudo (i == 184) had been assigned to r9 (a call clobbered reg) and yet
lra_reg_info[184].call_p is true, leading to the assert.
Looking through the rtl dumps, pseudo 184 is live only over two consecutive
insns, so clearly call_p should not be true here. I'm tracking down where that
is getting set.
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Subject: [Bug target/78733] [7 Regression] bootstrap broken on aarch64-linux-gnu
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--- Comment #12 from wilco at gcc dot gnu.org ---
Author: wilco
Date: Fri Dec 9 14:26:07 2016
New Revision: 243486
URL: https://gcc.gnu.org/viewcvs?rev=243486&root=gcc&view=rev
Log:
Add the test this time...
PR target/78733
* gcc.target/aarch64/pr78733.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/aarch64/pr78733.c
Modified:
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug fortran/78737] [OOP] linking error with deferred, undefined user-defined derived-type I/O
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janus at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |janus at gcc dot gnu.org
Summary|linking error with |[OOP] linking error with
|deferred, undefined |deferred, undefined
|user-defined derived-type |user-defined derived-type
|I/O |I/O
Ever confirmed|0 |1
--- Comment #4 from janus at gcc dot gnu.org ---
Looking at the dump, one probably needs a polymorphic reference to
'a->_vptr->write_formatted' instead of using the interface?
_gfortran_transfer_derived (&dt_parm.0, (struct
__class_object_interface_Object_t *) a, write_formatted_interface);
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Subject: [Bug target/70321] [6/7 Regression] STV generates less optimized code
Date: Fri, 09 Dec 2016 14:29:00 -0000
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So shall we still consider moving 32-bit stv pass before the combiner instead
of after it? The argument about andn is no longer relevant, we have a
one_cmpldi3_doubleword pattern now.
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Subject: [Bug fortran/78737] [OOP] linking error with deferred, undefined user-defined derived-type I/O
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--- Comment #5 from janus at gcc dot gnu.org ---
(In reply to janus from comment #4)
> Looking at the dump, one probably needs a polymorphic reference to
> 'a->_vptr->write_formatted' instead of using the interface?
Btw, such wrong-code behavior is also seen in the non-abstract version:
module object_interface
type :: object
contains
procedure :: write_formatted
generic :: write(formatted) => write_formatted
end type
contains
subroutine write_formatted(this,unit,iotype,vlist,iostat,iomsg)
class(object), intent(in) :: this
integer, intent(in) :: unit
character (len=*), intent(in) :: iotype
integer, intent(in) :: vlist(:)
integer, intent(out) :: iostat
character (len=*), intent(inout) :: iomsg
end subroutine
subroutine assert(a)
class(object):: a
write(*,*) a
end subroutine
end module
end
If the write procedure is overwritten in an extended type, then the write
statement still calls the one from the base class, which is wrong.
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Subject: [Bug target/72861] [7 Regression] 25% tramp3d-v4 performance regression on ppc64le
Date: Fri, 09 Dec 2016 14:38:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Is that still the case? Has it been bisected?
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From: "cesar at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/78027] [6/7 Regression] ICE in new_oacc_loop_routine, at omp-low.c:19000
Date: Fri, 09 Dec 2016 14:46:00 -0000
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--- Comment #4 from cesar at gcc dot gnu.org ---
Author: cesar
Date: Fri Dec 9 14:45:54 2016
New Revision: 243488
URL: https://gcc.gnu.org/viewcvs?rev=243488&root=gcc&view=rev
Log:
PR ipa/78027
gcc/
* ipa-icf.c (sem_function::parse): Don't process functions with
oacc decl attributes, as they may be OpenACC routines.
gcc/testsuite/
* c-c++-common/goacc/acc-icf.c: New test.
* gfortran.dg/goacc/pr78027.f90: New test.
Added:
trunk/gcc/testsuite/c-c++-common/goacc/acc-icf.c
trunk/gcc/testsuite/gfortran.dg/goacc/pr78027.f90
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-icf.c
trunk/gcc/testsuite/ChangeLog
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From: "felix.morgner at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78754] New: incorrectly accepts non-deductible template parameter pack in function template
Date: Fri, 09 Dec 2016 14:57:00 -0000
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Bug ID: 78754
Summary: incorrectly accepts non-deductible template parameter
pack in function template
Product: gcc
Version: 6.2.1
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g++ incorrectly accepts the following code that contains a non-deductible
template parameter pack:
#include <utility>
template<std::size_t ...Ns, typename ...Ts>
void foo(std::index_sequence<Ns...>)
{
}
int main()
{
foo(std::make_index_sequence<5>{});
}
ISO14882:2014 states the following in [temp.param]:
(9) [...] A default template-argument may be specified for any kind of
template-parameter (type, non-type, template) that is not a template parameter
pack (14.5.3). [...]
(11) [...] A template parameter pack of a function template shall not be
followed by another template parameter unless that template parameter can be
deduced from the parameter-type-list of the function template or has a default
argument (14.8.2).
It also gives an example similar to the above. As far as I can tell, it is
neither possible to deduce nor to specify the types for 'Ts' and thus this
template function should be rejected.
The example code was compiled with the following command line invocation:
g++ -Wall -Wextra -pedantic -pedantic-errors -Werror -std=c++14 templ.cpp
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
Date: Fri, 09 Dec 2016 15:00:00 -0000
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--- Comment #2 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
I think the target restriction
/* { dg-do compile { target { powerpc*-*-* && ilp32 } } } */
is probably sufficient to fix this. I can test that in a bit.
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
Date: Fri, 09 Dec 2016 15:16:00 -0000
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--- Comment #3 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Yes, that works:
Running
/home/wschmidt/gcc/gcc-mainline-test/gcc/testsuite/gcc.target/powerpc/powerpc.exp
...
=== gcc Summary for unix/-m64 ===
# of unsupported tests 1
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Subject: [Bug c++/78749] [7 Regression] bogus warning for friend member function in anonymous namespace
Date: Fri, 09 Dec 2016 15:18:00 -0000
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--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
It's tempting to write just
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -922,11 +922,12 @@ wrapup_globals_for_namespace (tree name_space, void* data
ATTRIBUTE_UNUSED)
unsigned int i;
FOR_EACH_VEC_SAFE_ELT (statics, i, decl)
if (TREE_CODE (decl) == FUNCTION_DECL
- && DECL_INITIAL (decl) == 0
+ && DECL_INITIAL (decl) == NULL_TREE
&& DECL_EXTERNAL (decl)
&& !TREE_PUBLIC (decl)
&& !DECL_ARTIFICIAL (decl)
- && !TREE_NO_WARNING (decl))
+ && !TREE_NO_WARNING (decl)
+ && !DECL_FRIEND_P (decl))
{
warning_at (DECL_SOURCE_LOCATION (decl),
OPT_Wunused_function,
given that "Storage class specifiers are not allowed in friend function
declarations. A function that is defined in the friend declaration has external
linkage, a function that was previously defined, keeps the linkage it was
defined with." But maybe somebody has an example of a friend member function
that we'd want to warn for?
>From gcc-bugs-return-547218-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 15:18:48 2016
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
Date: Fri, 09 Dec 2016 15:18:00 -0000
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--- Comment #4 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Since the test doesn't have a { dg-do ... }, I don't know whether you were
intending compile-only or an executable test. Use { dg-do run { target ... } }
as needed.
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Subject: [Bug tree-optimization/78696] [7 Regression] -fprintf-return-value misoptimizes %.Ng where N is greater than 10
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--- Comment #16 from Martin Sebor <msebor at gcc dot gnu.org> ---
(In reply to James Greenhalgh from comment #15)
> (In reply to James Greenhalgh from comment #14)
> > Did you accidentally commit it as part of r243419? I don't see the changes
> > marked in your ChangeLog, nor did you tag that revision as a fix for this
> > bug, but the code above has found its way in to trunk, and so the failures
> > I've been seeing with our code base have been fixed.
>
> I take that back, it is the fix in comment #6 that I see in tree, not the
> expanded fix from comment #13.
I think that hunk was indeed accidental (though benign). I wondered where it
came from myself just last night as I was rebasing my patch on top of the top
of trunk.
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--- Comment #5 from amker at gcc dot gnu.org ---
(In reply to Bill Schmidt from comment #4)
> Since the test doesn't have a { dg-do ... }, I don't know whether you were
> intending compile-only or an executable test. Use { dg-do run { target ...
> } } as needed.
Hi,
Thanks very much for helping. The original case doesn't have main function
thus for compile only. BTW, will you send the patch too?
Thanks,
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
Date: Fri, 09 Dec 2016 15:24:00 -0000
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Bill Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
Ever confirmed|0 |1
--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Sure, I can fix it up. Thanks for the clarification!
Bill
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Subject: [Bug target/77933] Stack corruption on ARM when using high registers and __builtin_return_address
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--- Comment #7 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> ---
Author: thopre01
Date: Fri Dec 9 15:26:17 2016
New Revision: 243490
URL: https://gcc.gnu.org/viewcvs?rev=243490&root=gcc&view=rev
Log:
2016-12-09 Thomas Preud'homme <thomas.preudhomme@arm.com>
Backport from mainline
2016-11-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR target/77933
* config/arm/arm.c (thumb1_expand_prologue): Distinguish between lr
being live in the function and lr needing to be saved. Distinguish
between already saved pushable registers and registers to push.
Check for LR being an available pushable register.
gcc/testsuite/
PR target/77933
* gcc.target/arm/pr77933-1.c: New test.
* gcc.target/arm/pr77933-2.c: Likewise.
Added:
branches/gcc-6-branch/gcc/testsuite/gcc.target/arm/pr77933-1.c
branches/gcc-6-branch/gcc/testsuite/gcc.target/arm/pr77933-2.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/config/arm/arm.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog
>From gcc-bugs-return-547223-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 15:28:09 2016
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Subject: [Bug rtl-optimization/78751] [7 Regression] ICE in extract_insn, at recog.c:2311 (error: unrecognizable insn) w/ -Os -misel
Date: Fri, 09 Dec 2016 15:28:00 -0000
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Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |aldyh at gcc dot gnu.org,
| |meissner at gcc dot gnu.org,
| |segher at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Confirmed. Started with the patch below, though it is unlikely to be the
problem, as this is a back end problem. It is most likely associated with a
handful of rs6000 changes by Meissner or Segher around the same time.
commit 0d56015c6a1200605edf7bb30bea06f0b436a183
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Nov 11 16:00:47 2016 +0000
* gimple-ssa-isolate-paths.c (is_divmod_with_given_divisor): New
function.
(stmt_uses_name_in_undefined_way): New function, extracted from
find_implicit_erroneous_behavior and extended for div/mod case.
(stmt_uses_0_or_null_in_undefined_way): New function, extracted from
find_explicit_erroneous_behavior and extended for div/mod case.
(find_implicit_erroneous_behavior): Use new helper function.
(find_explicit_erroneous_behavior): Use new helper function.
* gcc.dg/tree-ssa/isolate-6.c: New test.
* gcc.dg/tree-ssa/isolate-7.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242075
138bc75d-0d04-0410-961f-82ee72b054a4
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From: "vincent-gcc at vinc17 dot net" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/25733] missed diagnostic about assignment used as truth value.
Date: Fri, 09 Dec 2016 15:35:00 -0000
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--- Comment #13 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
Another example:
int f1 (int a, int b, int c, int d)
{
if (a = c && b == d)
return 0;
else
return 1;
}
int f2 (int a, int b, int c, int d)
{
if (a == b || (a = c && b == d))
return 0;
else
return 1;
}
int f3 (int a, int b, int c, int d)
{
if (a == b && (a = c && b == d))
return 0;
else
return 1;
}
GCC emits a warning for f1 (this is the usual case), but neither for f2, nor
for f3. Note that for f2, the parentheses around what should be a == c && b ==
d are optional, but strongly recommended (GCC has a warning for that), so one
would really expect
if (a == b || (a == c && b == d))
or
if (a == b || ((a = c && b == d)))
For f3, the parentheses around what should be a == c && b == d are not
specially recommended (but may be useful to emphasize on some symmetry in some
context), but I think that there should be the same rule as f2.
FYI, MPFR had an undetected bug corresponding to f3 and a warning would have
really been useful:
https://gforge.inria.fr/scm/viewvc.php/mpfr/trunk/src/sqrt.c?r1=11021&r2=11022
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Subject: [Bug target/72861] [7 Regression] 25% tramp3d-v4 performance regression on ppc64le
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Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #1)
> Is that still the case? Has it been bisected?
The issue seems to be fixed now.
>From gcc-bugs-return-547226-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 15:43:56 2016
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Subject: [Bug c++/61636] generic lambda: segfault / "cannot call member function without object"
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Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nathan at gcc dot gnu.org
--- Comment #21 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Created attachment 40288
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40288&action=edit
smaller testcase
reduced testcase avoiding nullptr_t indeterminacy
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78748] [7 Regression] ICE in extract_insn, at recog.c:2311 (s390x-linux-gnu)
Date: Fri, 09 Dec 2016 15:47:00 -0000
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Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
CC| |aldyh at gcc dot gnu.org,
| |krebbel at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Confirmed, though it is unlikely to be the revision quoted, as that patch is an
aarch64 specific patch.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/72742] [7 Regression] ICE in extract_insn, at recog.c:2309 (error: unrecognizable insn) w/ -Os -mlra
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72742
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |jakub at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40289
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40289&action=edit
gcc7-pr72742.patch
Untested fix. From my limited understanding, rs6000.md has
*and<mode>3_imm_dot/*and<mode>3_imm_dot2 patterns which test that the immediate
is not rs6000_is_valid_and_mask, clobber also "x" if they don't have "x" as
destination and are split into *and<mode>3_imm followed by comparison. And
then there are very similar *and<mode>3_imm_mask_dot/*and<mode>3_imm_mask_dot2
patterns that don't clobber "x" even if they don't have "x" as destination and
are split into the *and<mode>3_mask pattern which doesn't clobber "x". But,
for this to work, the immediate has to be a valid mask. I bet for -mno-lra it
happened to work because the first patterns were picked up if the constants
weren't valid masks. The patch just tightens up the second patterns so that
even LRA knows they should not be used it the immediate is not a valid mask.
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Subject: [Bug c++/68903] missing default initialization of member when combined with virtual inheritance
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--- Comment #1 from trzeci <spam at trzeci dot pl> ---
Created attachment 40290
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40290&action=edit
simpler testcase
should output: 3 3 3
usually outputs: 3 3 0
C::c remains uninitialized after construction
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From: "law at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78731] [5 Regression] Possible bug with switch when optimization is turned on.
Date: Fri, 09 Dec 2016 16:16:00 -0000
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Jeffrey A. Law <law at redhat dot com> changed:
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----------------------------------------------------------------------------
CC| |law at redhat dot com
--- Comment #4 from Jeffrey A. Law <law at redhat dot com> ---
I'm convinced that a table based jump threader that traverses backedges is
fundamentally a bad idea. That's why I ripped it out and we rely on
Sebastian's code to handle those cases -- Sebastian's code doesn't have to deal
with table invalidation.
You might consider just disabling threading across the backedges. There'll be
testsuite fallout, but in the end the layers upon layers of complexity to deal
with invalidation just isn't worth it.
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Subject: [Bug middle-end/78748] [7 Regression] ICE in extract_insn, at recog.c:2311 (s390x-linux-gnu)
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r239685.
>From gcc-bugs-return-547232-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 16:47:28 2016
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Subject: [Bug rtl-optimization/78255] [5/6/7 regression] Indirect sibling call causing wrong code generation for ARM
Date: Fri, 09 Dec 2016 16:47:00 -0000
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--- Comment #12 from avieira at gcc dot gnu.org ---
Author: avieira
Date: Fri Dec 9 16:46:42 2016
New Revision: 243494
URL: https://gcc.gnu.org/viewcvs?rev=243494&root=gcc&view=rev
Log:
PR78255: Make postreload aware of NO_FUNCTION_CSE
gcc/ChangeLog:
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR rtl-optimization/78255
* gcc/postreload.c (reload_cse_simplify): Do not CSE a function if
NO_FUNCTION_CSE is true.
gcc/testsuite/ChangeLog:
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR rtl-optimization/78255
* gcc.target/aarch64/pr78255.c: New.
* gcc.target/arm/pr78255-1.c: New.
* gcc.target/arm/pr78255-2.c: New.
Added:
trunk/gcc/testsuite/gcc.target/aarch64/pr78255.c
trunk/gcc/testsuite/gcc.target/arm/pr78255-1.c
trunk/gcc/testsuite/gcc.target/arm/pr78255-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/postreload.c
trunk/gcc/testsuite/ChangeLog
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/78755] New: Thread sanitizer reports race with std::promise with -O0, works with -O{1,2,3}
Date: Fri, 09 Dec 2016 16:55:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78755
Bug ID: 78755
Summary: Thread sanitizer reports race with std::promise with
-O0, works with -O{1,2,3}
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: csaba_22 at yahoo dot co.uk
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
Hand-built GCC on Ubuntu 14.04LTS.
$ g++-620 -v
Using built-in specs.
COLLECT_GCC=g++-620
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-pc-linux-gnu/6.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-6.2.0/configure --program-suffix=-620
--enable-version-specific-runtime-libs --enable-languages=c,c++,lto
Thread model: posix
gcc version 6.2.0 (GCC)
Source:
#include <thread>
#include <future>
#include <atomic>
#include <memory>
#include <iostream>
class SD {
public:
~SD()
{
stop();
}
//
void start();
void stop();
void operator()();
private:
std::unique_ptr<std::thread> thread_; ///< The thread object.
std::promise<void> promise_; ///< The synchronization
promise.
std::atomic_bool bored_{false}; ///< Loop exit flag
};
void SD::start()
{
thread_.reset(new std::thread{std::ref(*this)});
// Indicating that the thread_ object can be used.
promise_.set_value(); // data race: write
}
void SD::stop()
{
if (thread_) { // it's running
bored_ = true; // tell it to stop
thread_->join(); // wait for it to stop
}
}
void SD::operator ()()
{
// Making sure that the thread_ object has been set properly.
promise_.get_future().wait(); // data race: read
while (!bored_) {
std::cout << (bored_ ? " " : "not") << " bored\n";
std::this_thread::sleep_for(std::chrono::seconds{1});
}
}
int main()
{
SD s;
std::cout << "Thread created\n";
s.start();
std::cout << "Thread is running\n";
std::this_thread::sleep_for(std::chrono::seconds{2});
std::cout << "Goodbye\n";
}
$ g++-620 -fsanitize=thread -g -O0 -pthread -std=gnu++0x -Wall -pedantic
-Wextra -Wformat=2 -I ~/workspace/zarquon -o "promise" "promise-std.cc"
-lboost_thread -lboost_system -save-temps
(no errors)
$ ./promise
Thread created
Thread is running
==================
WARNING: ThreadSanitizer: data race (pid=23398)
Read of size 8 at 0x7d0c0000efe8 by thread T1:
#0 std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter>::get() const
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/unique_ptr.h:305
(promise+0x000000405d59)
#1 std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter>::operator*() const
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/unique_ptr.h:291
(promise+0x000000404334)
#2 std::__future_base::_State_baseV2::wait()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:329
(promise+0x00000040343b)
#3 std::__basic_future<void>::wait() const
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:662
(promise+0x0000004056b4)
#4 SD::operator()() /tmp/promise-std.cc:41 (promise+0x0000004024f5)
#5 void std::__invoke_impl<void, SD&>(std::__invoke_other, SD&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:218
(promise+0x0000004091f7)
#6 std::result_of<SD& ()>::type std::__invoke<SD&>(SD&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:260
(promise+0x0000004091a6)
#7 std::result_of<SD& ()>::type std::reference_wrapper<SD>::operator()<>()
const /usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:474
(promise+0x000000409108)
#8 void std::_Bind_simple<std::reference_wrapper<SD>
()>::_M_invoke<>(std::_Index_tuple<>)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:1400
(promise+0x0000004090b8)
#9 std::_Bind_simple<std::reference_wrapper<SD> ()>::operator()()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:1389
(promise+0x000000408f91)
#10 std::thread::_State_impl<std::_Bind_simple<std::reference_wrapper<SD>
()> >::_M_run()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/thread:196
(promise+0x000000408ed8)
#11 execute_native_thread_routine
../../../../../gcc-6.1.0/libstdc++-v3/src/c++11/thread.cc:83
(libstdc++.so.6+0x0000000b8901)
Previous write of size 8 at 0x7d0c0000efe8 by main thread:
#0
std::enable_if<std::__and_<std::is_move_constructible<std::__future_base::_Result_base*>,
std::is_move_assignable<std::__future_base::_Result_base*> >::value,
void>::type
std::swap<std::__future_base::_Result_base*>(std::__future_base::_Result_base*&,
std::__future_base::_Result_base*&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/move.h:191
(promise+0x000000407f6e)
#1 std::_Tuple_impl<0ul, std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>::_M_swap(std::_Tuple_impl<0ul,
std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/tuple:331
(promise+0x000000407bd4)
#2 std::tuple<std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>::swap(std::tuple<std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/tuple:1215
(promise+0x0000004070aa)
#3 void std::swap<std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>(std::tuple<std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>&,
std::tuple<std::__future_base::_Result_base*,
std::__future_base::_Result_base::_Deleter>&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/tuple:1548
(promise+0x000000405fd2)
#4 std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter>::swap(std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter>&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/unique_ptr.h:352
(promise+0x0000004048fa)
#5
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:538
(promise+0x000000403885)
#6 void std::__invoke_impl<void, void (std::__future_base::_State_baseV2::*
const&)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*,
bool*>(std::__invoke_memfun_deref, void (std::__future_base::_State_baseV2::*
const&)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*&&,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*&&, bool*&&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:235
(promise+0x000000408771)
#7 std::result_of<void (std::__future_base::_State_baseV2::*
const&(std::__future_base::_State_baseV2*&&,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*&&,
bool*&&))(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>::type
std::__invoke<void (std::__future_base::_State_baseV2::*
const&)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*>(void
(std::__future_base::_State_baseV2::*
const&)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*&&,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*&&, bool*&&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:260
(promise+0x0000004081fb)
#8 decltype (__invoke((*this)._M_pmf,
(forward<std::__future_base::_State_baseV2*>)({parm#1}),
(forward<std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*>)({parm#1}),
(forward<bool*>)({parm#1}))) std::_Mem_fn_base<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
true>::operator()<std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*,
bool*>(std::__future_base::_State_baseV2*&&,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*&&, bool*&&) const
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:613
(promise+0x000000407ecf)
#9 void std::_Bind_simple<std::_Mem_fn<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>
(std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>::_M_invoke<0ul, 1ul,
2ul>(std::_Index_tuple<0ul, 1ul, 2ul>)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:1400
(promise+0x000000407b6a)
#10 std::_Bind_simple<std::_Mem_fn<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>
(std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>::operator()()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/functional:1389
(promise+0x000000407057)
#11 void std::__once_call_impl<std::_Bind_simple<std::_Mem_fn<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>
(std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)> >()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/mutex:587
(promise+0x000000405f82)
#12 pthread_once
../../../../gcc-6.1.0/libsanitizer/tsan/tsan_interceptors.cc:1304
(libtsan.so.0+0x0000000294af)
#13 __gthread_once
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/x86_64-pc-linux-gnu/bits/gthr-default.h:699
(promise+0x000000402190)
#14 void std::call_once<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*>(std::once_flag&, void
(std::__future_base::_State_baseV2::*&&)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*),
std::__future_base::_State_baseV2*&&,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*&&, bool*&&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/mutex:619
(promise+0x00000040471a)
#15
std::__future_base::_State_baseV2::_M_set_result(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>, bool)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:393
(promise+0x00000040353c)
#16 std::promise<void>::set_value()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:1308
(promise+0x000000403d82)
#17 SD::start() /tmp/promise-std.cc:27 (promise+0x000000402411)
#18 main /tmp/promise-std.cc:53 (promise+0x0000004025f7)
Location is heap block of size 48 at 0x7d0c0000efd0 allocated by main thread:
#0 operator new(unsigned long)
../../../../gcc-6.1.0/libsanitizer/tsan/tsan_new_delete.cc:43
(libtsan.so.0+0x000000065833)
#1
__gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
>::allocate(unsigned long, void const*)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/ext/new_allocator.h:104
(promise+0x000000408a1f)
#2
std::allocator_traits<std::allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
>
>::allocate(std::allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
>&, unsigned long)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/alloc_traits.h:416
(promise+0x0000004087e5)
#3
std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
> >
std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
>
>(std::allocator<std::_Sp_counted_ptr_inplace<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>, (__gnu_cxx::_Lock_policy)2>
>&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/allocated_ptr.h:103
(promise+0x000000408307)
#4
std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>>(std::_Sp_make_shared_tag,
std::__future_base::_State_baseV2*,
std::allocator<std::__future_base::_State_baseV2> const&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/shared_ptr_base.h:613
(promise+0x00000040806f)
#5 std::__shared_ptr<std::__future_base::_State_baseV2,
(__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<std::__future_base::_State_baseV2>>(std::_Sp_make_shared_tag,
std::allocator<std::__future_base::_State_baseV2> const&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/shared_ptr_base.h:1100
(promise+0x000000407c54)
#6
std::shared_ptr<std::__future_base::_State_baseV2>::shared_ptr<std::allocator<std::__future_base::_State_baseV2>>(std::_Sp_make_shared_tag,
std::allocator<std::__future_base::_State_baseV2> const&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/shared_ptr.h:319
(promise+0x000000407136)
#7 std::shared_ptr<std::__future_base::_State_baseV2>
std::allocate_shared<std::__future_base::_State_baseV2,
std::allocator<std::__future_base::_State_baseV2>>(std::allocator<std::__future_base::_State_baseV2>
const&)
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/shared_ptr.h:620
(promise+0x0000004060ec)
#8 std::shared_ptr<std::__future_base::_State_baseV2>
std::make_shared<std::__future_base::_State_baseV2>()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/shared_ptr.h:636
(promise+0x000000404b2a)
#9 std::promise<void>::promise()
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/future:1223
(promise+0x000000403ac2)
#10 SD::SD() /tmp/promise-std.cc:7 (promise+0x000000403fbc)
#11 main /tmp/promise-std.cc:51 (promise+0x0000004025dc)
Thread T1 (tid=23400, running) created by main thread at:
#0 pthread_create
../../../../gcc-6.1.0/libsanitizer/tsan/tsan_interceptors.cc:876
(libtsan.so.0+0x000000027bfd)
#1 __gthread_create
/home/csabaraduly/workspace/GCC61/__build_with_isl/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:662
(libstdc++.so.6+0x0000000b8bf4)
#2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State,
std::default_delete<std::thread::_State> >, void (*)())
../../../../../gcc-6.1.0/libstdc++-v3/src/c++11/thread.cc:163
(libstdc++.so.6+0x0000000b8bf4)
#3 SD::start() /tmp/promise-std.cc:25 (promise+0x0000004023f2)
#4 main /tmp/promise-std.cc:53 (promise+0x0000004025f7)
SUMMARY: ThreadSanitizer: data race
/usr/local/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/c++/bits/unique_ptr.h:305
in std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter>::get() const
==================
not bored
not bored
Goodbye
ThreadSanitizer: reported 1 warnings
If compiled with -O1 or higher, the program runs without a complaint.
>From gcc-bugs-return-547234-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 16:56:35 2016
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Subject: [Bug sanitizer/78755] Thread sanitizer reports race with std::promise with -O0, works with -O{1,2,3}
Date: Fri, 09 Dec 2016 16:56:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78755
--- Comment #1 from Csaba Ráduly <csaba_22 at yahoo dot co.uk> ---
Created attachment 40291
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40291&action=edit
Preprocessed source
>From gcc-bugs-return-547235-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 17:17:31 2016
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78746] charlen_15.f90, charlen_03, charlen_10 ICE
Date: Fri, 09 Dec 2016 17:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
--- Comment #1 from kargl at gcc dot gnu.org ---
(In reply to Christophe Lyon from comment #0)
> Hello,
>
> The new gfortran tests (charlen_15.f90, charlen_03, charlen_10) added at
> r243463
> are failing on aarch64 and arm, as follows:
> on arm-none-linux-gnueabihf:
I don't have access to aarch64 or arm.
>From gcc-bugs-return-547236-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 17:19:50 2016
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From: "mojca at macports dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/78756] New: Missing prefix in the name of gfortran.info
Date: Fri, 09 Dec 2016 17:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78756
Bug ID: 78756
Summary: Missing prefix in the name of gfortran.info
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: mojca at macports dot org
Target Milestone: ---
I'm trying to build GCC for the MinGW-w64 cross-compiler with fortran support.
I end up with the following set of files:
$prefix/share/info/gfortran.info
$prefix/share/info/i686-w64-mingw32-cpp.info
$prefix/share/info/i686-w64-mingw32-cppinternals.info
$prefix/share/info/i686-w64-mingw32-gcc.info
$prefix/share/info/i686-w64-mingw32-gccinstall.info
$prefix/share/info/i686-w64-mingw32-gccint.info
...
The binary itself is called
/opt/local/bin/i686-w64-mingw32-gfortran
and the man page is at
/opt/local/share/man/man1/i686-w64-mingw32-gfortran.1.gz
Because I'm building for both i686 and x86_64, this creates a conflict between
both packages. I would like to request fixing the name to
${target}-gfortran.info.
I wasn't sure which component to pick, but I add "bootstrap" after seeing this
(related) bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26500
It's probably not important, but just for completeness here are the configure
flags I'm using:
--prefix=/opt/local --target=i686-w64-mingw32 --infodir=/opt/local/share/info
--mandir=/opt/local/share/man
--datarootdir=/opt/local/share/i686-w64-mingw32-gcc --with-system-zlib
--with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local
--enable-stage1-checking --disable-multilib
--libdir=/opt/local/lib/i686-w64-mingw32 --enable-shared --with-dwarf
--enable-fully-dynamic-string --enable-libssp --with-cloog=/opt/local
--with-ppl=/opt/local --enable-lto --enable-languages="c c++ fortran objc
obj-c++"
>From gcc-bugs-return-547237-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 17:21:46 2016
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Subject: [Bug target/78748] [7 Regression] ICE in extract_insn, at recog.c:2311 (s390x-linux-gnu)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78748
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40292
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40292&action=edit
gcc7-pr78748.patch
Untested fix (though, I don't have a quick setup to bootstrap/regtest it in the
next week or so).
The bug seems to be that if reg_overlap_mentioned_p returns true in between op0
and op2, perhaps better testcase for that would be:
/* PR target/78748 */
void
foo (int *p, int *q)
{
*q = *p & ~*q;
}
void
bar (int *p, int *q)
{
*q = ~*p & *q;
}
where indeed there is a potential overlap in between the two, then the op1 &
op2 result is forced into a pseudo, but if op0 is a MEM that matched op1, that
means the xor violates s390_logical_operator_ok_p, as the destination does not
match any of the operands, even when it is a memory.
The patch makes sure it is either not a MEM, or matches op2, which appears in
both instructions.
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Subject: [Bug rtl-optimization/78255] [5/6/7 regression] Indirect sibling call causing wrong code generation for ARM
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78255
--- Comment #13 from avieira at gcc dot gnu.org ---
Author: avieira
Date: Fri Dec 9 17:22:20 2016
New Revision: 243496
URL: https://gcc.gnu.org/viewcvs?rev=243496&root=gcc&view=rev
Log:
PR78255: Make postreload aware of NO_FUNCTION_CSE
gcc/ChangeLog.arm:
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from mainline
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR rtl-optimization/78255
* gcc/postreload.c (reload_cse_simplify): Do not CSE a function if
NO_FUNCTION_CSE is true.
gcc/testsuite/ChangeLog.arm:
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from mainline
2016-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR rtl-optimization/78255
* gcc.target/aarch64/pr78255.c: New.
* gcc.target/arm/pr78255-1.c: New.
* gcc.target/arm/pr78255-2.c: New.
Added:
branches/ARM/embedded-6-branch/gcc/testsuite/gcc.target/aarch64/pr78255.c
branches/ARM/embedded-6-branch/gcc/testsuite/gcc.target/arm/pr78255-1.c
branches/ARM/embedded-6-branch/gcc/testsuite/gcc.target/arm/pr78255-2.c
Modified:
branches/ARM/embedded-6-branch/gcc/ChangeLog.arm
branches/ARM/embedded-6-branch/gcc/postreload.c
branches/ARM/embedded-6-branch/gcc/testsuite/ChangeLog.arm
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Subject: [Bug fortran/78746] charlen_15.f90, charlen_03, charlen_10 ICE
Date: Fri, 09 Dec 2016 18:04:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|arm aarch64 |
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-12-09
Ever confirmed|0 |1
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed on x86 as well: see
https://gcc.gnu.org/ml/gcc-testresults/2016-12/msg01049.html. They are all
heap-use-after-free:
[Book15] f90/bug% gfcg /opt/gcc/work/gcc/testsuite/gfortran.dg/charlen_15.f90
=================================================================
==52586==ERROR: AddressSanitizer: heap-use-after-free on address 0x604000001110
at pc 0x0001001ea062 bp 0x7fff5fbfe5b0 sp 0x7fff5fbfe5a8
READ of size 8 at 0x604000001110 thread T0
#0 0x1001ea061 in mio_expr(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001ea061)
#1 0x1001eb55a in mio_charlen(gfc_charlen**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001eb55a)
#2 0x1001ebb2b in mio_typespec(gfc_typespec*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001ebb2b)
#3 0x1001e9f6e in mio_expr(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001e9f6e)
#4 0x1001edb45 in mio_component(gfc_component*, int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001edb45)
#5 0x1001ede9e in mio_component_list(gfc_component**, int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001ede9e)
#6 0x1001f2045 in mio_symbol(gfc_symbol*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001f2045)
#7 0x1001f2c7c in write_symbol(int, gfc_symbol*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001f2c7c)
#8 0x1001fbc3c in write_symbol0(gfc_symtree*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001fbc3c)
#9 0x1001fb8d4 in write_symbol0(gfc_symtree*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001fb8d4)
#10 0x1001fc21d in write_module()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001fc21d)
#11 0x1001fc697 in dump_module(char const*, int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001fc697)
#12 0x1001fcdd4 in gfc_dump_module(char const*, int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001fcdd4)
#13 0x1002a824f in gfc_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1002a824f)
#14 0x100405ab7 in gfc_be_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100405ab7)
#15 0x104b3dc50 in compile_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x104b3dc50)
#16 0x104b466e9 in do_compile()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x104b466e9)
#17 0x106c28c4e in toplev::main(int, char**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x106c28c4e)
#18 0x106c2df67 in main
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x106c2df67)
#19 0x7fffe8d83254 in start (/usr/lib/system/libdyld.dylib+0x5254)
0x604000001110 is located 0 bytes inside of 48-byte region
[0x604000001110,0x604000001140)
freed by thread T0 here:
#0 0x152bf48b0 in wrap_free.part.0
(/opt/gcc/gcc7a/lib/libasan.4.dylib+0x638b0)
#1 0x10031c473 in resolve_structure_cons(gfc_expr*, int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x10031c473)
#2 0x10035169b in resolve_values(gfc_symbol*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x10035169b)
#3 0x1003ad64e in do_traverse_symtree(gfc_symtree*, void (*)(gfc_symtree*),
void (*)(gfc_symbol*))
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1003ad64e)
#4 0x1003c60c3 in gfc_traverse_ns(gfc_namespace*, void (*)(gfc_symbol*))
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1003c60c3)
#5 0x1003567a1 in resolve_types(gfc_namespace*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1003567a1)
#6 0x1003052d7 in gfc_resolve(gfc_namespace*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1003052d7)
#7 0x1002a7e8d in gfc_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1002a7e8d)
#8 0x100405ab7 in gfc_be_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100405ab7)
#9 0x104b3dc50 in compile_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x104b3dc50)
#10 0x104b466e9 in do_compile()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x104b466e9)
#11 0x106c28c4e in toplev::main(int, char**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x106c28c4e)
#12 0x106c2df67 in main
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x106c2df67)
#13 0x7fffe8d83254 in start (/usr/lib/system/libdyld.dylib+0x5254)
previously allocated by thread T0 here:
#0 0x152bf3f30 in wrap_calloc (/opt/gcc/gcc7a/lib/libasan.4.dylib+0x62f30)
#1 0x1069e7b07 in xcalloc
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1069e7b07)
#2 0x1003c32dd in gfc_new_charlen(gfc_namespace*, gfc_charlen*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1003c32dd)
#3 0x100086558 in gfc_match_char_spec(gfc_typespec*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100086558)
#4 0x1001b3da7 in gfc_match_type_spec(gfc_typespec*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001b3da7)
#5 0x100019611
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100019611)
#6 0x1001c923a in match_primary(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001c923a)
#7 0x1001c952b in match_level_1(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001c952b)
#8 0x1001c9904 in match_mult_operand(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001c9904)
#9 0x1001ca1e0 in match_add_operand(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001ca1e0)
#10 0x1001cac48 in match_level_2(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cac48)
#11 0x1001cb1bc in match_level_3(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cb1bc)
#12 0x1001cb6a4 in match_level_4(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cb6a4)
#13 0x1001cc6b9 in match_and_operand(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cc6b9)
#14 0x1001cc9b3 in match_or_operand(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cc9b3)
#15 0x1001cce6a in match_equiv_operand(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cce6a)
#16 0x1001cd327 in match_level_5(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001cd327)
#17 0x1001c8d10 in gfc_match_expr(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001c8d10)
#18 0x1000f1600 in gfc_match_init_expr(gfc_expr**)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1000f1600)
#19 0x1000a71a3 in variable_decl(int)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1000a71a3)
#20 0x1000a7bd3 in gfc_match_data_decl()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1000a7bd3)
#21 0x10028bdb8 in match_word(char const*, match (*)(), locus*)
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x10028bdb8)
#22 0x10029728e in decode_statement()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x10029728e)
#23 0x100299861 in next_free()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100299861)
#27 0x1002a70ba in parse_module()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1002a70ba)
#28 0x1002a806c in gfc_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1002a806c)
#29 0x100405ab7 in gfc_be_parse_file()
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x100405ab7)
SUMMARY: AddressSanitizer: heap-use-after-free
(/opt/gcc/gcc7g/libexec/gcc/x86_64-apple-darwin16.1.0/7.0.0/f951+0x1001ea061)
in mio_expr(gfc_expr**)
Shadow bytes around the buggy address:
0x1c08000001d0: fa fa 00 00 00 00 00 00 fa fa 00 00 00 00 00 00
0x1c08000001e0: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd
0x1c08000001f0: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fa
0x1c0800000200: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fa
0x1c0800000210: fa fa fd fd fd fd fd fa fa fa 00 00 00 00 00 00
=>0x1c0800000220: fa fa[fd]fd fd fd fd fd fa fa 00 00 00 00 00 00
0x1c0800000230: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd
0x1c0800000240: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd
0x1c0800000250: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fd
0x1c0800000260: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd
0x1c0800000270: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==52586==ABORTING
f951: internal compiler error: Abort trap: 6
gfcg: internal compiler error: Abort trap: 6 (program f951)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
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Subject: [Bug target/70321] [6/7 Regression] STV generates less optimized code
Date: Fri, 09 Dec 2016 18:29:00 -0000
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--- Comment #14 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #13)
> So shall we still consider moving 32-bit stv pass before the combiner
> instead of after it? The argument about andn is no longer relevant, we have
> a one_cmpldi3_doubleword pattern now.
Previously moving the pass caused regressions. If no regressions appear now
then we should do it. It might enable some additional optimizations.
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Subject: [Bug bootstrap/26500] [4.2 Regression] info/gfortran.info is no longer being installed
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Mojca Miklavec <mojca at macports dot org> changed:
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----------------------------------------------------------------------------
CC| |mojca at macports dot org
--- Comment #6 from Mojca Miklavec <mojca at macports dot org> ---
gfortran.info is installed under the wrong name.
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78756
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Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
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--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Fri Dec 9 19:05:28 2016
New Revision: 243498
URL: https://gcc.gnu.org/viewcvs?rev=243498&root=gcc&view=rev
Log:
PR middle-end/78750
* builtins.c (check_sizes): Use POINTER_TYPE_P.
* g++.dg/torture/pr78750.C: New.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr78750.C
Modified:
trunk/gcc/builtins.c
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Subject: [Bug middle-end/78750] [7 Regression] ICE in get_range_info, at tree-ssanames.c:375
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
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--- Comment #9 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug preprocessor/78680] [7 Regression] ICE in get_substring_ranges_for_loc, at input.c:1398
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Eric Gallager <egall at gwmail dot gwu.edu> changed:
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CC| |egall at gwmail dot gwu.edu
--- Comment #4 from Eric Gallager <egall at gwmail dot gwu.edu> ---
I'm running into this issue, too, with a different source file, but the line
number at input.c is 1388 instead of 1398. Should I open a separate bug?
>From gcc-bugs-return-547245-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 19:31:54 2016
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Subject: [Bug target/78683] [ppc] __builtin_ctzl code gen can be improved for -mcpu=power8 and earlier
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--- Comment #1 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Fri Dec 9 19:31:06 2016
New Revision: 243499
URL: https://gcc.gnu.org/viewcvs?rev=243499&root=gcc&view=rev
Log:
rs6000: clz/ctz/ffs improvement (PR78683)
On CPUs that implement popcnt[wd] but not cnttz[wd] we can do better for
the ctz sequences than we do today.
CL[TZ]_DEFINED_VALUE_AT_ZERO can return 2, since we always return the
same fixed value (only dependent on TARGET_* options).
PR target/78683
* config/rs6000/rs6000.h (CLZ_DEFINED_VALUE_AT_ZERO): Use
GET_MODE_BITSIZE. Return 2.
(CTZ_DEFINED_VALUE_AT_ZERO): Use GET_MODE_BITSIZE. Return 2. Handle
TARGET_POPCNTD the same as TARGET_CTZ.
* config/rs6000/rs6000.md (ctz<mode>2): Reimplement.
(ffs<mode>2): Reimplement.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/rs6000.h
trunk/gcc/config/rs6000/rs6000.md
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Subject: [Bug target/72742] [7 Regression] ICE in extract_insn, at recog.c:2309 (error: unrecognizable insn) w/ -Os -mlra
Date: Fri, 09 Dec 2016 19:36:00 -0000
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 9 19:35:18 2016
New Revision: 243500
URL: https://gcc.gnu.org/viewcvs?rev=243500&root=gcc&view=rev
Log:
PR target/72742
* config/rs6000/rs6000.md (*and<mode>3_imm_mask_dot,
*and<mode>3_imm_mask_dot2): Add rs6000_is_valid_and_mask to insn
condition.
* gcc.c-torture/compile/pr72742.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr72742.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/rs6000.md
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
Date: Fri, 09 Dec 2016 19:47:00 -0000
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--- Comment #4 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Fri Dec 9 19:47:10 2016
New Revision: 243501
URL: https://gcc.gnu.org/viewcvs?rev=243501&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:
2016-12-09 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/78721
* gcc.dg/pr78721.c: New test.
gcc/ChangeLog:
2016-12-09 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/78721
* ipa-cp.c (propagate_vr_accross_jump_function): drop_tree_overflow
after fold_convert.
Added:
trunk/gcc/testsuite/gcc.dg/pr78721.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-cp.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug target/72742] [7 Regression] ICE in extract_insn, at recog.c:2309 (error: unrecognizable insn) w/ -Os -mlra
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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From: "jb at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/78757] New: ICE with function returning a pointer to a character
Date: Fri, 09 Dec 2016 21:04:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78757
Bug ID: 78757
Summary: ICE with function returning a pointer to a character
Product: gcc
Version: unknown
Status: UNCONFIRMED
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Priority: P3
Component: fortran
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The following testcase causes an ICE when compiling with -O1 on
x86_64-pc-linux-gnu on todays (2016-12-09) trunk:
! Reduced and modified from char_result_8.f90
! { dg-do run }
program main
implicit none
character (len = 30), target :: string
character(len=30), pointer :: s
s => f4(70_8)
contains
function f4 (i)
integer(8) :: i
character (len = i), pointer :: f4
f4 => string
end function f4
end program main
A slightly different way of causing (most likely) the same bug to appear
(compile with "-O1 -fdefault-integer-8"):
! Reduced from char_result_8.f90
! { dg-options "-fdefault-integer-8" }
! { dg-do run }
program main
implicit none
character (len = 30), target :: string
character(len=30), pointer :: s
s => f4(70)
contains
function f4 (i)
integer :: i
character (len = i), pointer :: f4
f4 => string
end function f4
end program main
>From gcc-bugs-return-547250-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Dec 09 21:33:55 2016
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Subject: [Bug fortran/78758] New: [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
Date: Fri, 09 Dec 2016 21:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78758
Bug ID: 78758
Summary: [7 Regression] Warning: '__builtin_memcpy' ...
overflows the destination for string assignment
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I just saw the following warning:
% gfc-trunk -c gfcbug137.f90 -O
gfcbug137.f90:7:0:
longname(5:) = " " // adjustl (name(5:))
Warning: '__builtin_memcpy' writing 12 bytes into a region of size 11 overflows
the destination [-Wstringop-overflow=]
for the simple code:
% cat gfcbug137.f90
integer function get_satid (name)
character(len=*), intent(in) :: name
character(len=16) :: longname
longname = name
if (name(1:4) == "GOES" .and. name(5:5) /= " ") then
longname(5:) = " " // adjustl (name(5:))
end if
get_satid = satid_longname (longname)
end function get_satid
% gfc-trunk --version | head -1
GNU Fortran (GCC) 7.0.0 20161208 (experimental)
Note: optimization (-O or higher) is essential; there is no warning
with -O0 or -Og.
For Fortran code, the expected behavior in string assignment is that there
should be no overflow.
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Subject: [Bug fortran/78758] [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
Date: Fri, 09 Dec 2016 21:59:00 -0000
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--- Comment #1 from Harald Anlauf <anlauf at gmx dot de> ---
Slightly reduced variant:
integer function get_satid (name)
character(len=*), intent(in) :: name
character(len=16) :: longname
integer, external :: satid_longname
! longname(1:) = " " // adjustl (name(1:)) ! No warning
longname(2:) = " " // adjustl (name(2:)) ! Warning
get_satid = satid_longname (longname)
end function get_satid
produces:
gfcbug137.f90:7:0:
longname(2:) = " " // adjustl (name(2:)) ! Warning
Warning: '__builtin_memcpy' writing 15 bytes into a region of size 14 overflows
the destination [-Wstringop-overflow=]
I looked at the dump tree differences for the two variants indicated above,
but frankly, I do not understand what's going on here.
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
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--- Comment #7 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Fri Dec 9 22:02:04 2016
New Revision: 243506
URL: https://gcc.gnu.org/viewcvs?rev=243506&root=gcc&view=rev
Log:
2016-12-09 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR testsuite/78740
* gcc.target/powerpc/pr78691-ppc.c: Remove -m32.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/powerpc/pr78691-ppc.c
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Subject: [Bug testsuite/78740] test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335
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Bill Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Fixed by removing -m32 option. Test can be compiled everywhere without
problem.
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78758] [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
Date: Fri, 09 Dec 2016 22:10:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
__builtin_object_size, being a C-family builtin, has been written with the
assumption of C-family languages. When it is used for other languages, it is
no wonder it doesn't handle them well.
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Subject: [Bug libgcc/78759] New: __gcc_qadd could have been "more commutative" when a+c is infinity, but a+c+aa+cc is not
Date: Fri, 09 Dec 2016 22:20:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78759
Bug ID: 78759
Summary: __gcc_qadd could have been "more commutative" when a+c
is infinity, but a+c+aa+cc is not
Product: gcc
Version: 7.0
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#include <cstdio>
#include <cstdint>
#include <cstring>
#include <cfenv>
int main() {
static_assert(sizeof(long double) == 16, "");
uint64_t raw_input[4] = { 0x7c90000000000000ull, 0, 0x7fefffffffffffffull,
0xf950000000000000ull, };
long double input[2];
memcpy(&input[0], &raw_input[0], sizeof(input));
long double result = input[0] + input[1];
uint64_t output[2];
memcpy(output, &result, sizeof(result));
printf("%lx %lx\n", output[0], output[1]);
return 0;
}
The code above prints:
7ff0000000000000
0
Which stands for inifinity. However, if the addends are exchanged:
- uint64_t raw_input[4] = { 0x7c90000000000000ull, 0, 0x7fefffffffffffffull,
0xf950000000000000ull, };
+ uint64_t raw_input[4] = { 0x7fefffffffffffffull, 0xf950000000000000ull,
0x7c90000000000000ull, 0, };
the result is finite:
7fefffffffffffff
7c8fffffffffffff
Proof of concept fix:
diff --git a/libgcc/config/rs6000/ibm-ldouble.c
b/libgcc/config/rs6000/ibm-ldouble.c
index 3116cf4..d7b5a92 100644
--- a/libgcc/config/rs6000/ibm-ldouble.c
+++ b/libgcc/config/rs6000/ibm-ldouble.c
@@ -118,7 +118,10 @@ __gcc_qadd (double a, double aa, double c, double cc)
{
if (fabs (z) != inf())
return z;
- z = cc + aa + c + a;
+ if (fabs(a) > fabs(c))
+ z = cc + aa + c + a;
+ else
+ z = cc + aa + a + c;
if (nonfinite (z))
return z;
xh = z; /* Will always be DBL_MAX. */
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Subject: [Bug fortran/77903] [F08] gfortran 6.1.0/7.0.0 accept invalid code with conflicting module/submodule interfaces
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--- Comment #12 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Fri Dec 9 22:25:26 2016
New Revision: 243507
URL: https://gcc.gnu.org/viewcvs?rev=243507&root=gcc&view=rev
Log:
2016-12-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/77903
* decl.c (get_proc_name): Use the symbol tlink field instead of
the typespec interface field.
(gfc_match_function_decl, gfc_match_submod_proc): Ditto.
* gfortran.h : Since the symbol tlink field is no longer used
by the frontend for change management, change the comment to
reflect its current uses.
* parse.c (get_modproc_result): Same as decl.c changes.
* resolve.c (resolve_fl_procedure): Ditto.
2016-12-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/77903
* gfortran.dg/submodule_20.f08: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/submodule_20.f08
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/decl.c
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/parse.c
trunk/gcc/fortran/resolve.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug fortran/77903] [F08] gfortran 6.1.0/7.0.0 accept invalid code with conflicting module/submodule interfaces
Date: Fri, 09 Dec 2016 22:29:00 -0000
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Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #13 from Paul Thomas <pault at gcc dot gnu.org> ---
Fixed on trunk.
Thanks for the report.
Paul
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Subject: [Bug fortran/78758] [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-12-09
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40293
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40293&action=edit
gcc7-pr78758.patch
Untested fix.
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/59781] [5/6 Regression] [F03] Incorrect initialisation of derived type
Date: Sat, 10 Dec 2016 00:18:00 -0000
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janus at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |7.0
Summary|[5/6/7 Regression] [F03] |[5/6 Regression] [F03]
|Incorrect initialisation of |Incorrect initialisation of
|derived type |derived type
Known to fail| |5.4.1, 6.2.0
--- Comment #12 from janus at gcc dot gnu.org ---
(In reply to janus from comment #3)
> The following variant works with 4.4 (printing '1' as expected), but fails
> with 4.6 and above (printing some random number):
The test case from comment #3 fails up to version 6, but apparently works on
current trunk (printing '1').
It seems like the bug has been fixed on trunk.
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Subject: [Bug fortran/78737] [OOP] linking error with deferred, undefined user-defined derived-type I/O
Date: Sat, 10 Dec 2016 00:24:00 -0000
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--- Comment #6 from Damian Rouson <damian at sourceryinstitute dot org> ---
Janus, thanks for your additional investigation and comments.
Jerry, below is a better example in which I extend the abstract type and
implement the deferred binding in the non-abstract child type but invoke the
UDDTIO procedure via the deferred binding. I still get the same linking error.
Deleting the "write(*,*) a" statement eliminates the linking error, but doing
also would also prevent an important element of my intended usage of UDDTIO.
$ cat undefined-ud-dtio.f90
module object_interface
type, abstract :: object
contains
procedure(write_formatted_interface), deferred ::write_formatted
generic :: write(formatted)=>write_formatted
end type
abstract interface
subroutine write_formatted_interface(this,unit,iotype,vlist,iostat,iomsg)
import object
class(object), intent(in) :: this
integer, intent(in) :: unit
character (len=*), intent(in) :: iotype
integer, intent(in) :: vlist(:)
integer, intent(out) :: iostat
character (len=*), intent(inout) :: iomsg
end subroutine
end interface
type, extends(object) :: non_abstract_child
contains
procedure :: write_formatted
end type
contains
subroutine write_formatted(this,unit,iotype,vlist,iostat,iomsg)
class(non_abstract_child), intent(in) :: this
integer, intent(in) :: unit
character (len=*), intent(in) :: iotype
integer, intent(in) :: vlist(:)
integer, intent(out) :: iostat
character (len=*), intent(inout) :: iomsg
end subroutine
subroutine assert(a)
class(object):: a
write(*,*) a
end subroutine
end module
end
$ gfortran undefined-ud-dtio.f90
Undefined symbols for architecture x86_64:
"_write_formatted_interface_", referenced from:
___object_interface_MOD_assert in ccXYfdSK.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
$ gfortran --version
GNU Fortran (MacPorts gcc7 7-20161204_0) 7.0.0 20161204 (experimental)
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Subject: [Bug middle-end/78760] New: strcpy buffer overflow not diagnosed with -Wstringop-overflow
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Bug ID: 78760
Summary: strcpy buffer overflow not diagnosed with
-Wstringop-overflow
Product: gcc
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With the new -Wstringop-overflow option GCC diagnoses the more involved buffer
overflow in function foo() but misses the more straightforward case of the same
overflow in bar(). This because the second call to __builtin_strcpy is
transformed into __builtin_memcpy by one of the optimization passes, apparently
without regard to the possibility of overflow.
$ cat x.C && gcc -O2 -S -Wstringop-overflow=2 x.C
struct S {
char a[3];
void (*pf)(void);
};
void foo (struct S *s, int i)
{
const char *str = i ? "1234578" : "87654321";
__builtin_strcpy (s->a, str);
}
void bar (struct S *s, int i)
{
const char *str = "1234578";
__builtin_strcpy (s->a, str); // missing -Wstringop-overflow
}
x.C: In function ‘void foo(S*, int)’:
x.C:9:31: warning: ‘char* __builtin_strcpy(char*, const char*)’ writing 8 bytes
into a region of size 3 overflows the destination [-Wstringop-overflow=]
__builtin_strcpy (s->a, str);
^
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/70863] [F03] Finalization of array of derived type causes segfault
Date: Sat, 10 Dec 2016 00:34:00 -0000
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--- Comment #2 from janus at gcc dot gnu.org ---
Slightly reduced test case:
module b_module
implicit none
type :: b
character(len=4) :: name = "none"
contains
final :: destroy_b
end type
contains
impure elemental subroutine destroy_b (this)
type(b), intent(inout) :: this
print *, "destroying b: ", loc(this)
print *, " name = ", this%name
end subroutine
end module
program main
use b_module
implicit none
call f ()
contains
subroutine f()
type :: c
type(b) :: object_b(2)
end type
type(c) :: x
x%object_b(1)%name = "b(1)"
x%object_b(2)%name = "b(2)"
print *, 'loc of c ', loc(x)
print *, 'loc of b(1) ', loc(x%object_b(1))
print *, 'loc of b(2) ', loc(x%object_b(2))
end subroutine
end
Obviously the second destroyed object has the wrong address.
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Subject: [Bug fortran/70863] [F03] Finalization of array of derived type causes segfault
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--- Comment #3 from janus at gcc dot gnu.org ---
(In reply to Dominique d'Humieres from comment #1)
> related to/duplicate of pr69298?
Yes, I think it's the same problem.
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Subject: [Bug target/71112] [6/7 Regression] ICE with -fpie on aarch64 ILP32 big-endian
Date: Sat, 10 Dec 2016 04:27:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71112
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |NEW
Known to work| |5.4.0, 7.0
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--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed on the trunk.
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Subject: [Bug c++/78761] New: C++14, compiler generate mangled name that can not be demangled
Date: Sat, 10 Dec 2016 04:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78761
Bug ID: 78761
Summary: C++14, compiler generate mangled name that can not be
demangled
Product: gcc
Version: 6.1.0
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cat t.cc
template <class T>
decltype(auto) g_1(T t) {
return t;
}
template <class T>
auto g_2(T t) {
return t;
}
int main() {
decltype(auto) res = g_1<int>(10);
decltype(auto) res2 = g_2<int>(10);
return 0;
}
==========================================
g++ -g t.cc
> nm a.out | grep g_2
[71] | 4198535| 12|FUNC |WEAK |0 |20 |_Z3g_2IiEDaT_
> /pkg/gnu/bin/gnu-c++filt _Z3g_2IiEDaT_
auto g_2<int>(int) <=== this is OK
> nm a.out | grep g_1
[84] | 4198523| 12|FUNC |WEAK |0 |19 |_Z3g_1IiEDcT_
> /pkg/gnu/bin/gnu-c++filt _Z3g_1IiEDcT_
_Z3g_1IiEDcT_ <=== can not be demangled
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Subject: [Bug sanitizer/78708] [7 Regression][ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN
Date: Sat, 10 Dec 2016 08:02:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78708
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Dec 10 08:01:17 2016
New Revision: 243514
URL: https://gcc.gnu.org/viewcvs?rev=243514&root=gcc&view=rev
Log:
PR sanitizer/78708
* lto-streamer-in.c (input_function): In addition to debug stmts
without -g, remove IFN_*SAN_* calls if corresponding flag_sanitize
bit is not enabled.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lto-streamer-in.c
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Subject: [Bug sanitizer/78708] [7 Regression][ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug fortran/78758] [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
Date: Sat, 10 Dec 2016 08:03:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78758
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Dec 10 08:02:21 2016
New Revision: 243515
URL: https://gcc.gnu.org/viewcvs?rev=243515&root=gcc&view=rev
Log:
PR fortran/78758
* tree-object-size.c (compute_object_offset) <case ARRAY_REF>: Handle
non-zero low bound or non-standard element sizes.
* gfortran.dg/pr78758.f90: New test.
* gfortran.dg/pr38868.f: Remove again bogus warning.
Added:
trunk/gcc/testsuite/gfortran.dg/pr78758.f90
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/pr38868.f
trunk/gcc/tree-object-size.c
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Subject: [Bug fortran/78758] [7 Regression] Warning: '__builtin_memcpy' ... overflows the destination for string assignment
Date: Sat, 10 Dec 2016 08:04:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug c++/78761] C++14, compiler generate mangled name that can not be demangled
Date: Sat, 10 Dec 2016 08:51:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-12-10
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40294
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40294&action=edit
gcc7-pr78761.patch
That is a demangler bug.
The mangling has been added with
https://gcc.gnu.org/ml/gcc-patches/2013-04/msg01273.html
in r198150 and matches the spec
https://mentorembedded.github.io/cxx-abi/abi.html#mangling
::= Da # auto
::= Dc # decltype(auto)
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Subject: [Bug fortran/78737] [OOP] linking error with deferred, undefined user-defined derived-type I/O
Date: Sat, 10 Dec 2016 09:03:00 -0000
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--- Comment #7 from janus at gcc dot gnu.org ---
It seems that the function get_dtio_proc in trans-io.c needs to be fixed.
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Subject: [Bug target/78222] target-tilegx: Incorrect bundle: let addli in y pipe
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--- Comment #1 from Chen Gang <gang.chen.5i5j at gmail dot com> ---
The root cause is: in tilegx_gen_bundle, gcc will lose prev insn when it
deletes useless insns.
The related insns before tilegx_gen_bbundle (it is correct).
249 (insn:TI 71 68 75 4 (set (mem:DI (reg/f:DI 10 r10 [112]) [3 *rp_19(D)+8 S8
A64])
250 (reg:DI 32 r32 [orig:115 r+8 ] [115])) "test.c":25 4 {*movdi_insn}
251 (expr_list:REG_DEAD (reg:DI 32 r32 [orig:115 r+8 ] [115])
252 (expr_list:REG_DEAD (reg/f:DI 10 r10 [112])
253 (nil))))
254 (insn 75 71 78 4 (unspec_volatile [
255 (const_int 0 [0])
256 ] 201) "test.c":27 162 {blockage}
257 (nil))
258 (insn 78 71 160 4 (unspec_volatile [
259 (const_int 0 [0])
260 ] 201) "test.c":27 162 {blockage}
261 (nil))
262
263
264 (insn:TI 144 160 142 4 (set (reg:DI 28 r28)
265 (plus:DI (reg/f:DI 54 sp)
266 (const_int 120 [0x78]))) "test.c":27 38 {adddi3}
267 (nil))
268 (insn 142 144 79 4 (set (reg:DI 29 r29)
269 (plus:DI (reg/f:DI 54 sp)
270 (const_int 128 [0x80]))) "test.c":27 38 {adddi3}
271 (nil))
The insns after tilegx_gen_bundle (remove 2 useless insns, but forgot to
correct the prev insn)
249 (insn:SI # 0 0 4 (set (mem:DI (reg/f:DI 10 r10 [112]) [ *rp_19(D)+8 S8
A64])
250 (reg:DI 32 r32 [orig:115 r+8 ] [115])) "test.c":25# {*movdi_insn}
251 (expr_list:REG_DEAD (reg:DI 32 r32 [orig:115 r+8 ] [115])
252 (expr_list:REG_DEAD (reg/f:DI 10 r10 [112])
253 (nil))))
254 (insn:SI # 0 0 4 (set (reg:DI 28 r28)
255 (plus:DI (reg/f:DI 54 sp)
256 (const_int 120 [0x78]))) "test.c":27# {adddi3}
257 (nil))
258 (insn:QI # 0 0 4 (set (reg:DI 29 r29)
259 (plus:DI (reg/f:DI 54 sp)
260 (const_int 128 [0x80]))) "test.c":27# {adddi3}
261 (nil))
The correct insns after tilegx_gen_bundle should be:
220 (insn:QI # 0 0 4 (set (mem:DI (reg/f:DI 10 r10 [112]) [ *rp_19(D)+8 S8
A64])
221 (reg:DI 32 r32 [orig:115 r+8 ] [115])) "test.c":25# {*movdi_insn}
222 (expr_list:REG_DEAD (reg:DI 32 r32 [orig:115 r+8 ] [115])
223 (expr_list:REG_DEAD (reg/f:DI 10 r10 [112])
224 (nil))))
225 (note # 0 0 NOTE_INSN_EPILOGUE_BEG)
226 (insn:SI # 0 0 4 (set (reg:DI 28 r28)
227 (plus:DI (reg/f:DI 54 sp)
228 (const_int 120 [0x78]))) "test.c":27# {adddi3}
229 (nil))
230 (insn:QI # 0 0 4 (set (reg:DI 29 r29)
231 (plus:DI (reg/f:DI 54 sp)
232 (const_int 128 [0x80]))) "test.c":27# {adddi3}
233 (nil))
234 (insn # 0 0 4 (use (reg/i:TI 0 r0)) "test.c":27#
235 (nil))
I shall make patch for it next.
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Subject: [Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand
Date: Sat, 10 Dec 2016 11:16:00 -0000
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Allan Jensen <linux at carewolf dot com> changed:
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----------------------------------------------------------------------------
CC| |linux at carewolf dot com
--- Comment #7 from Allan Jensen <linux at carewolf dot com> ---
This is significantly worse with integer operands.
_mm256_storeu_si256((__m256i *)&data[3],
_mm256_add_epi32(_mm256_loadu_si256((const __m256i *)&data[0]),
_mm256_loadu_si256((const __m256i *)&data[1]))
);
compiles to:
vmovdqu 0x20(%rax),%xmm0
vinserti128 $0x1,0x30(%rax),%ymm0,%ymm0
vmovdqu (%rax),%xmm1
vinserti128 $0x1,0x10(%rax),%ymm1,%ymm1
vpaddd %ymm1,%ymm0,%ymm0
vmovups %xmm0,0x60(%rax)
vextracti128 $0x1,%ymm0,0x70(%rax)
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Subject: [Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand
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--- Comment #8 from Allan Jensen <linux at carewolf dot com> ---
Note this happens with -mavx2, but not with -march=haswell. It appears the
tuning is a bit too pessimistic when avx2 is enabled on generic x64.
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Dec 10 12:06:12 2016
New Revision: 243516
URL: https://gcc.gnu.org/viewcvs?rev=243516&root=gcc&view=rev
Log:
PR tree-optimization/78720
* match.pd (A < 0 ? C : 0): Only optimize for signed A. If shift
is negative, sign extend to @1's type and than AND with C.
* gcc.c-torture/execute/pr78720.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr78720.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/match.pd
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug tree-optimization/78720] [7 Regression] Illegal instruction in generated code
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug tree-optimization/78721] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:371
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand
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--- Comment #9 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Allan Jensen from comment #7)
> This is significantly worse with integer operands.
>
> _mm256_storeu_si256((__m256i *)&data[3],
> _mm256_add_epi32(_mm256_loadu_si256((const __m256i *)&data[0]),
> _mm256_loadu_si256((const __m256i *)&data[1]))
> );
Please don't post isolated lines of code, always complete examples ready to be
copy-pasted and compiled. The declaration of data is relevant to the generated
code.
> compiles to:
>
> vmovdqu 0x20(%rax),%xmm0
> vinserti128 $0x1,0x30(%rax),%ymm0,%ymm0
> vmovdqu (%rax),%xmm1
> vinserti128 $0x1,0x10(%rax),%ymm1,%ymm1
> vpaddd %ymm1,%ymm0,%ymm0
> vmovups %xmm0,0x60(%rax)
> vextracti128 $0x1,%ymm0,0x70(%rax)
With trunk and -march=skylake (or haswell), I can get
vmovdqu data(%rip), %ymm0
vpaddd data+32(%rip), %ymm0, %ymm0
vmovdqu %ymm0, data+96(%rip)
so this looks fixed?
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Subject: [Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand
Date: Sat, 10 Dec 2016 13:25:00 -0000
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--- Comment #10 from Allan Jensen <linux at carewolf dot com> ---
No I mean it triggers when you compile with -mavx2, it is solved with
-march=haswell. It appears the issue is the tune flag
X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL is set for all processors that support
avx2, but if you use generic+avx2, it still pessimistically optimizes for
pre-avx2 processors setting MASK_AVX256_SPLIT_UNALIGNED_LOAD.
Though since there are two controlling flags and the second
X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL is still set for some avx2 processors
(btver and znver) besides generic, it is harder to argue what generic+avx2
should do there.
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From: "cantabile.desu at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/71107] wstring_convert::from_bytes produces wide chars with the wrong byte order
Date: Sat, 10 Dec 2016 14:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71107
--- Comment #8 from Bitterblue <cantabile.desu at gmail dot com> ---
Can a fix for this bug be my Christmas present?
>From gcc-bugs-return-547281-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 14:58:15 2016
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From: "freddie_chopin at op dot pl" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/77904] [ARM Cortex-M0] Frame pointer thrashes registers if assembly statements with "sp" clobber are used
Date: Sat, 10 Dec 2016 14:58:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77904
--- Comment #9 from Freddie Chopin <freddie_chopin at op dot pl> ---
Any chance for merging the fix to gcc-6 branch before gcc 6.3 would be
released?
>From gcc-bugs-return-547282-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:00:47 2016
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From: "linux at carewolf dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/78762] New: Regression: Splitting unaligned AVX loads also when AVX2 is enabled
Date: Sat, 10 Dec 2016 18:00:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78762
Bug ID: 78762
Summary: Regression: Splitting unaligned AVX loads also when
AVX2 is enabled
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: linux at carewolf dot com
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Created attachment 40295
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40295&action=edit
Test
In gcc 7 when not optimizing for speed or newer Intel architectures unaligned
AVX loads are now split.
It appears this is on purpose, and the code related to it quite old, but I
haven't been able to trigger it with older versions gcc (tried 4.9, 5 and 6).
However this is a special tuning intended for Sandybridge and possibly AMD
cpus. It does not trigger on any AVX2 processor. Therefore it now causes a
universal performance degradation in code optimized for generic AVX2.
I suggest this tuning is disabled when avx2 is enabled.
>From gcc-bugs-return-547284-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:02:39 2016
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Subject: [Bug target/78762] Regression: Splitting unaligned AVX loads also when AVX2 is enabled
Date: Sat, 10 Dec 2016 18:02:00 -0000
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--- Comment #2 from Allan Jensen <linux at carewolf dot com> ---
Created attachment 40297
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40297&action=edit
Test compiled with -march=haswell
>From gcc-bugs-return-547283-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:02:19 2016
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Subject: [Bug target/78762] Regression: Splitting unaligned AVX loads also when AVX2 is enabled
Date: Sat, 10 Dec 2016 18:02:00 -0000
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--- Comment #1 from Allan Jensen <linux at carewolf dot com> ---
Created attachment 40296
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40296&action=edit
Test compiled with -mavx2
>From gcc-bugs-return-547285-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:02:54 2016
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Subject: [Bug target/78762] Regression: Splitting unaligned AVX loads also when AVX2 is enabled
Date: Sat, 10 Dec 2016 18:02:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78762
--- Comment #3 from Allan Jensen <linux at carewolf dot com> ---
Created attachment 40298
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40298&action=edit
Test compiled with gcc 6
>From gcc-bugs-return-547286-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:04:30 2016
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From: "linux at carewolf dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand
Date: Sat, 10 Dec 2016 18:04:00 -0000
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--- Comment #11 from Allan Jensen <linux at carewolf dot com> ---
The think the issue I noted is completely separate from this one, so I opened
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78762 to deal with it.
I think this one could probably be closed though.
>From gcc-bugs-return-547287-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:32:18 2016
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From: "jdanek at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug go/78763] New: go1: internal compiler error: in do_get_backend, at go/gofrontend/expressions.cc:8352
Date: Sat, 10 Dec 2016 18:32:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78763
Bug ID: 78763
Summary: go1: internal compiler error: in do_get_backend, at
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Product: gcc
Version: 6.2.0
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Created attachment 40299
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40299&action=edit
Dockerfile for the failing build
I've been building the attached Dockerfile and I got the following error from
it
[ 80%] Built target reactor_send_cpp
Scanning dependencies of target go-build
# qpid.apache.org/amqp
go1: internal compiler error: in do_get_backend, at
go/gofrontend/expressions.cc:8352
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [proton-c/bindings/go/CMakeFiles/go-build] Error 2
proton-c/bindings/go/CMakeFiles/go-build.dir/build.make:49: recipe for target
'proton-c/bindings/go/CMakeFiles/go-build' failed
CMakeFiles/Makefile2:1791: recipe for target
'proton-c/bindings/go/CMakeFiles/go-build.dir/all' failed
Makefile:127: recipe for target 'all' failed
make[1]: *** [proton-c/bindings/go/CMakeFiles/go-build.dir/all] Error 2
make: *** [all] Error 2
The command '/bin/sh -c make' returned a non-zero code: 2
>From gcc-bugs-return-547288-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:36:35 2016
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From: "pault at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78350] ICE in gfc_code2string(): Bad code, at fortran/misc.c:193
Date: Sat, 10 Dec 2016 18:36:00 -0000
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--- Comment #5 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Sat Dec 10 18:35:47 2016
New Revision: 243517
URL: https://gcc.gnu.org/viewcvs?rev=243517&root=gcc&view=rev
Log:
2016-12-10 Paul Thomas <pault@gcc.gnu.org>
PR fortran/78350
* resolve.c (resolve_structure_cons): Remove the block that
tried to remove a charlen and rely on namespace cleanup.
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/resolve.c
>From gcc-bugs-return-547289-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:37:10 2016
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From: "rin at NetBSD dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/78764] New: CPU type option discarded on 32-bit powerpc
Date: Sat, 10 Dec 2016 18:37:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78764
Bug ID: 78764
Summary: CPU type option discarded on 32-bit powerpc
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: rin at NetBSD dot org
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Created attachment 40300
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40300&action=edit
restrict usage of ".machine" pseudo-op to 64-bit powerpc
GCC >= 4.8.5 passes ".machine ppc" pseudo-op to assembler for 32-bit
powerpc, which is introduced by this commit:
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5379d8d457b300219d3d8eda38caaa9916f98078
This pseudo-op discards CPU type specified by compiler option
"-mcpu=XXX" or "-Wa,-mXXX". As a result, some mnemonics in inline
assembler codes are misassembled into instructions for generic ppc.
This results in broken kernel for NetBSD on IBM 405, where indices
of some special purpose registers are different from those in
generic ppc, cf. NetBSD PR port-powerpc/51366:
http://gnats.netbsd.org/51366
The commit raised above seem to be intended for 64-bit powerpc;
without it, gas cannot assemble codes generated by GCC for 64-bit
powerpc. I therefore propose to restrict usage of ".machine" pseudo-
op to the 64-bit CPUs. Please find the attached file. This is for
GCC 5.4.0, but it can be applied to the master branch as of today.
>From gcc-bugs-return-547290-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 18:38:30 2016
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From: "jdanek at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug go/78763] go1: internal compiler error: in do_get_backend, at go/gofrontend/expressions.cc:8352
Date: Sat, 10 Dec 2016 18:38:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78763
--- Comment #1 from Jiri Danek <jdanek at redhat dot com> ---
How reproducible: Always
Reproduction steps: docker run --rm -it jdanekrh/gcc-78763 make
(I pushed the partially built container to Docker Hub (docker.io) and the above
command fetches it from there and runs make in it.)
>From gcc-bugs-return-547291-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 19:08:37 2016
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/78689] [7 Regression] ICE (segfault)
Date: Sat, 10 Dec 2016 19:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78689
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I had further look at this. E.g. build_over_call's nargs = 2 in:
if (ctor_omit_inherited_parms (fn))
nargs = 2;
is seen in inh-ctor23.C, inh-ctor24.C and inh-ctor28.C testcases.
Looking at these testcases and checking where the current tree-inline.c
COND_EXPR with folded to INTEGER_CST condition, I see one conditional clobber
(non-interesting), one call to some constructor with nameless PARM_DECLs and
one case where __vtt_parm parameter is used. None of these contain user
labels, so worst case scanning for user labels in the tree-inline.c code might
work.
Anyway, what I see is that in the complete ctor during the tree-inline.c body
copying the __vtt_parm is replaced with 0 and (unexpectedly) the base ctor has
the unnamed extra params like the complete ctor. So I don't see why things
wouldn't work with the tree-inline.c changes reverted. Unless the extra
arguments from the base ctor are meant to be removed.
>From gcc-bugs-return-547292-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 19:54:58 2016
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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/78717] no definition of string::find when lowered to gimple
Date: Sat, 10 Dec 2016 19:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78717
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
Did you forget to enable optimizations? At -O0, there is no point keeping those
extern templates around, so gcc saves time by dropping them. At -O1 and above,
I do see some extra functions in the gimple dump. I don't see as many as if I
change _GLIBCXX_EXTERN_TEMPLATE to 0 in bits/c++config.h, some heuristic likely
decided to keep only the functions small enough that they are good candidates
for inlining (I didn't try to tweak the inlining parameters to see if I could
get it to keep all relevant functions).
I agree that this is not nice, there are several PRs in bugzilla caused by
those extern templates not being inlined aggressively enough. My hope is that
LTO will make enough progress that we can have libstdc++ compiled with it and
inline functions from the library.
>From gcc-bugs-return-547293-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 20:11:26 2016
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From: "chengniansun at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78765] New: ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_build_addr_expr_1, at cp/typeck.c:5708)
Date: Sat, 10 Dec 2016 20:11:00 -0000
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Bug ID: 78765
Summary: ICE on invalid C++ code on x86_64-linux-gnu (internal
compiler error: in cp_build_addr_expr_1, at
cp/typeck.c:5708)
Product: gcc
Version: 7.0
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$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 7.0.0 20161210 (experimental) [trunk revision 243516] (GCC)
$
$ gcc-trunk small.C
small.C:6:42: error: ‘v’ was not declared in this scope
static constexpr ValueType doubleval = v;
^
small.C: In function ‘int main()’:
small.C:9:52: internal compiler error: in cp_build_addr_expr_1, at
cp/typeck.c:5708
int main() { ValueTypeInfo<ValueTypeEnum::doubleval> }
^
0x7eb7d5 cp_build_addr_expr_1
../../gcc-source-trunk/gcc/cp/typeck.c:5708
0x683162 add_function_candidate
../../gcc-source-trunk/gcc/cp/call.c:2158
0x6848c7 add_candidates
../../gcc-source-trunk/gcc/cp/call.c:5491
0x67f9e4 build_user_type_conversion_1
../../gcc-source-trunk/gcc/cp/call.c:3842
0x680a8a implicit_conversion
../../gcc-source-trunk/gcc/cp/call.c:1898
0x6890dd build_integral_nontype_arg_conv(tree_node*, tree_node*, int)
../../gcc-source-trunk/gcc/cp/call.c:4025
0x70afa5 convert_nontype_argument
../../gcc-source-trunk/gcc/cp/pt.c:6434
0x711eed convert_template_argument
../../gcc-source-trunk/gcc/cp/pt.c:7363
0x71fa63 coerce_template_parms
../../gcc-source-trunk/gcc/cp/pt.c:7823
0x72199a lookup_template_class_1
../../gcc-source-trunk/gcc/cp/pt.c:8396
0x72199a lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*,
int, int)
../../gcc-source-trunk/gcc/cp/pt.c:8738
0x836bed finish_template_type(tree_node*, tree_node*, int)
../../gcc-source-trunk/gcc/cp/semantics.c:3146
0x7bea14 cp_parser_template_id
../../gcc-source-trunk/gcc/cp/parser.c:15464
0x7becba cp_parser_class_name
../../gcc-source-trunk/gcc/cp/parser.c:21879
0x7af07d cp_parser_qualifying_entity
../../gcc-source-trunk/gcc/cp/parser.c:6293
0x7af07d cp_parser_nested_name_specifier_opt
../../gcc-source-trunk/gcc/cp/parser.c:5977
0x7acd20 cp_parser_simple_type_specifier
../../gcc-source-trunk/gcc/cp/parser.c:16793
0x7aa261 cp_parser_type_specifier
../../gcc-source-trunk/gcc/cp/parser.c:16464
0x7bf3d3 cp_parser_decl_specifier_seq
../../gcc-source-trunk/gcc/cp/parser.c:13303
0x7c9770 cp_parser_simple_declaration
../../gcc-source-trunk/gcc/cp/parser.c:12646
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
$ cat small.C
class ValueType {
operator int();
int m_ID;
};
class ValueTypeEnum {
static constexpr ValueType doubleval = v;
};
template <int> class ValueTypeInfo;
int main() { ValueTypeInfo<ValueTypeEnum::doubleval> }
$
>From gcc-bugs-return-547294-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 20:13:52 2016
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/78746] charlen_15.f90, charlen_03, charlen_10 ICE
Date: Sat, 10 Dec 2016 20:13:00 -0000
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--- Comment #3 from kargl at gcc dot gnu.org ---
The issue with charlen_15.f90 was fixed here:
https://gcc.gnu.org/ml/gcc-bugs/2016-12/msg01451.html
The issues with both charlen_03.f90 and charlen_10.f90
have nothing at all to do with a charlen. The problem
is referencing an uninitialized array bound. For *_03.f90
we have
program p
type t
character(1), allocatable :: x(n)
end type
end
The variable 'n' is used, but not defined. The backtrace is
0x87bac2a crash_signal
/mnt/kargl/gcc/gcc/toplev.c:333
0x826ec1b resolve_variable
/mnt/kargl/gcc/gcc/fortran/resolve.c:5048
0x826ec1b gfc_resolve_expr(gfc_expr*)
/mnt/kargl/gcc/gcc/fortran/resolve.c:6492
0x81d7152 resolve_array_bound
/mnt/kargl/gcc/gcc/fortran/array.c:327
0x81d7c6d gfc_resolve_array_spec(gfc_array_spec*, int)
/mnt/kargl/gcc/gcc/fortran/array.c:368
0x826c9f0 resolve_component
/mnt/kargl/gcc/gcc/fortran/resolve.c:13629
0x826d378 resolve_fl_derived0
/mnt/kargl/gcc/gcc/fortran/resolve.c:13746
0x826d79e resolve_fl_derived0
/mnt/kargl/gcc/gcc/fortran/resolve.c:13831
0x826d79e resolve_fl_derived
/mnt/kargl/gcc/gcc/fortran/resolve.c:13823
0x826a226 resolve_symbol
/mnt/kargl/gcc/gcc/fortran/resolve.c:14146
0x82898dd do_traverse_symtree
/mnt/kargl/gcc/gcc/fortran/symbol.c:3986
0x8264f0d resolve_types
/mnt/kargl/gcc/gcc/fortran/resolve.c:15999
0x826969e gfc_resolve(gfc_namespace*)
/mnt/kargl/gcc/gcc/fortran/resolve.c:16112
0x825860b resolve_all_program_units
/mnt/kargl/gcc/gcc/fortran/parse.c:5947
0x825860b gfc_parse_file()
/mnt/kargl/gcc/gcc/fortran/parse.c:6194
0x829bc12 gfc_be_parse_file
/mnt/kargl/gcc/gcc/fortran/f95-lang.c:202
>From gcc-bugs-return-547295-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 20:21:03 2016
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From: "sstewartgallus00 at mylangara dot bc.ca" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug other/78766] New: GCC Awk scripts use the non-POSIX /^{/ regex
Date: Sat, 10 Dec 2016 20:21:00 -0000
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X-Bugzilla-Who: sstewartgallus00 at mylangara dot bc.ca
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78766
Bug ID: 78766
Summary: GCC Awk scripts use the non-POSIX /^{/ regex
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: sstewartgallus00 at mylangara dot bc.ca
Target Milestone: ---
When building with the latest Gawk 4.14 and POSIXLY_CORRECT set I get the error
gawk: /home/sstewartgallus/root/var/src/gcc-6.2.0/gcc/opt-functions.awk:64:
(FILENAME=- FNR=77) fatal: Invalid preceding regular expression: /^{/
>From gcc-bugs-return-547296-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 20:42:22 2016
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From: "erika.molnar at cyberthorstudios dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/78709] Code size is bigger at -Os than at -O3, -Os does not enable -ftree-loop-distribute-patterns
Date: Sat, 10 Dec 2016 20:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78709
--- Comment #3 from ErikaMolnar <erika.molnar at cyberthorstudios dot com> ---
Thank you for your reply. To make it work on -Os I need to make the following
change in tree-loop-distribution.c:
- /* Only optimize hot loops. */
- if (!optimize_loop_for_speed_p (loop))
- continue;
Could yo make this modification in the next release?
>From gcc-bugs-return-547297-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 10 20:53:01 2016
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From: "George Spelvin" <linux@sciencehorizons.net>
To: bug-gcc@gnu.org
Subject: ICE in maybe_record_trace_start, at dwarf2cfi.c:2328 (trunk@243328)
Cc: linux@sciencehorizons.net
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This is avr-gcc compiled from the git mirror commit
fcdd7053da, which says it's SVN trunk@243328.
This code used to work on some earlier GCC, but I don't know which
version.
Host is Debian Linux, i686, compiled with gcc (Debian 6.2.1-5) 6.2.1 20161124.
Configured with: ../gcc/configure --target=avr --enable-languages=c,c++ --enable-shared --with-system-zlib --enable-long-long --disable-nls --disable-libssp --disable-libsanitizer --program-prefix=avr- --with-as=/usr/bin/avr-as --with-ld=/usr/bin/avr-ld
$ avr-gcc -gdwarf-4 -Os -mmcu=at90s8515 -c scanf-nul.i
scanf-nul.i: In function 'main':
scanf-nul.i:130:1: internal compiler error: in maybe_record_trace_start, at dwarf2cfi.c:2328
}
^
0x837b20c maybe_record_trace_start
../../gcc/gcc/dwarf2cfi.c:2328
0x837b502 create_trace_edges
../../gcc/gcc/dwarf2cfi.c:2424
0x837d412 scan_trace
../../gcc/gcc/dwarf2cfi.c:2638
0x837def9 create_cfi_notes
../../gcc/gcc/dwarf2cfi.c:2664
0x837def9 execute_dwarf2_frame
../../gcc/gcc/dwarf2cfi.c:3022
0x837def9 execute
../../gcc/gcc/dwarf2cfi.c:3502
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
The code is straight out of the avr-libc test suite.
The version below has the header spam stripped out.
== scanf-nul.i =typedef unsigned int uint8_t __attribute__((__mode__(__QI__)));
typedef unsigned int uint16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int size_t;
struct __file {
char *buf;
unsigned char unget;
uint8_t flags;
int size;
int len;
int (*put)(char, struct __file *);
int (*get)(struct __file *);
void *udata;
};
typedef struct __file FILE;
extern FILE *fdevopen(int (*__put)(char, FILE*), int (*__get)(FILE*));
extern int fclose(FILE *__stream);
extern int fscanf(FILE *__stream, const char *__fmt, ...);
extern void exit(int __status) __attribute__((__noreturn__));
extern void *memset(void *, int, size_t);
extern int memcmp(const void *, const void *, size_t) __attribute__((__pure__));
int vrslt = 1;
struct {
int i;
int j;
char s[8];
char t[8];
} v = { 1, 1, {1}, {1} };
const char *getpnt, *getend;
int ugetc(FILE *fp)
{
(void)fp;
if (getpnt == getend)
return -2;
return *getpnt++;
}
int uread(void *cookie, char *buf, size_t size)
{
size_t n;
for (n = 0; n < size; n++) {
int i = ugetc(cookie);
if (i < 0) break;
*buf++ = i;
}
return n;
}
int uclose (void *cookie)
{
(void)cookie;
return 0;
}
static FILE * uopen(const char *buf, int size)
{
static FILE *fp;
if (fp)
fclose(fp);
fp = fdevopen(0, ugetc);
if (!fp)
exit(117);
getpnt = buf;
getend = buf + size;
return fp;
}
int main()
{
FILE *fp;
int i;
memset(&v, ~0, sizeof v);
fp = uopen("A\000B", 3);
vrslt = fscanf(fp, "%c%c%c", v.s, v.s + 1, v.s + 2);
if (vrslt != 3)
exit(133);
if(memcmp(v.s, "A\000B", 3))
exit(134);
memset(&v, ~0, sizeof v);
fp = uopen("\t \000", 3);
i = fscanf(fp, " %c", v.s);
if (i != 1) exit(140);
if (v.s[0]) exit(141);
memset(&v, ~0, sizeof v);
fp = uopen("123\000456", 7);
i = fscanf(fp, "%d%c%d", &v.i, v.s, &v.j);
if (i != 3) exit(147);
if (v.i != 123 || v.s[0] || v.j != 456)
exit(148);
memset(&v, ~0, sizeof v);
fp = uopen("A\000BC", 4);
i = fscanf(fp, "%s%s", v.s, v.t);
if (i != 1) exit(154);
if (memcmp(v.s, "A\000BC", 4))
exit(155);
return 0;
}
^ permalink raw reply [flat|nested] 2+ messages in thread