* [Bug rtl-optimization/66838] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
@ 2015-07-12 15:21 ` ubizjak at gmail dot com
2015-07-12 16:42 ` ubizjak at gmail dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ubizjak at gmail dot com @ 2015-07-12 15:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-07-12
CC| |law at gcc dot gnu.org,
| |ubizjak at gmail dot com
Component|c |rtl-optimization
Target Milestone|--- |5.2
Ever confirmed|0 |1
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed, this one is in postreload pass. The testcase from Comment #0, when
compiled with -O2 creates following dumps:
Register allocator creates correct sequence, _.reload dump shows for
ms_abi_func:
2: NOTE_INSN_FUNCTION_BEG
5: si:DI=`global'
6: di:DI=`*.LC2'
7: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
8: si:DI=`global'
9: di:DI=`*.LC3'
10: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
11: si:DI=`global'
12: di:DI=`*.LC4'
13: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
16: NOTE_INSN_DELETED
and _.postreload shows:
2: NOTE_INSN_FUNCTION_BEG
5: si:DI=`global'
6: di:DI=`*.LC2'
7: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
8: si:DI=si:DI
9: di:DI=`*.LC3'
10: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
11: si:DI=si:DI
12: di:DI=`*.LC4'
13: call [`sysv_abi_func'] argc:0
REG_EH_REGION 0
16: NOTE_INSN_DELETED
Please note invalid SI register propagation through function call to (insn 8)
and (insn 11).
Confirmed as rtl-optimization problem, CC added.
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Subject: [Bug rtl-optimization/66845] one more %si register function clobbering issue
Date: Sun, 12 Jul 2015 15:27:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Dup.
*** This bug has been marked as a duplicate of bug 66838 ***
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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/66838] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
Date: Sun, 12 Jul 2015 15:27:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marcus at jet dot franken.de
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
*** Bug 66845 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-492084-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Jul 12 15:47:28 2015
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From: "howarth.at.gcc at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug boehm-gc/66848] boehm-gc fails test suite on x86_64-apple-darwin15
Date: Sun, 12 Jul 2015 15:47:00 -0000
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--- Comment #2 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
The seg fault in the thread_leak_test back traces as...
# lldb ./thread_leak_test
(lldb) target create "./thread_leak_test"
Current executable set to './thread_leak_test' (x86_64).
(lldb) r
Process 35899 launched: './thread_leak_test' (x86_64)
Process 35899 stopped
* thread #2: tid = 0x20cc95, 0x000000010000c48b
libgcjgc.1.dylib`GC_mark_from(mark_stack_top=0x00000001000b1430,
mark_stack=0x00000001000b1000, mark_stack_limit=0x00000001000c1000) + 283 at
mark.c:759, stop reason = EXC_BAD_ACCESS (code=1, address=0x7fff7f95a158)
frame #0: 0x000000010000c48b
libgcjgc.1.dylib`GC_mark_from(mark_stack_top=0x00000001000b1430,
mark_stack=0x00000001000b1000, mark_stack_limit=0x00000001000c1000) + 283 at
mark.c:759
756 for(;;) {
757 PREFETCH((ptr_t)limit - PREF_DIST*CACHE_LINE_SIZE);
758 GC_ASSERT(limit >= current_p);
-> 759 deferred = *limit;
760 FIXUP_POINTER(deferred);
761 limit = (word *)((char *)limit - ALIGNMENT);
762 if ((ptr_t)deferred >= least_ha && (ptr_t)deferred <
greatest_ha) {
(lldb) bt
* thread #2: tid = 0x20cc95, 0x000000010000c48b
libgcjgc.1.dylib`GC_mark_from(mark_stack_top=0x00000001000b1430,
mark_stack=0x00000001000b1000, mark_stack_limit=0x00000001000c1000) + 283 at
mark.c:759, stop reason = EXC_BAD_ACCESS (code=1, address=0x7fff7f95a158)
* frame #0: 0x000000010000c48b
libgcjgc.1.dylib`GC_mark_from(mark_stack_top=0x00000001000b1430,
mark_stack=0x00000001000b1000, mark_stack_limit=0x00000001000c1000) + 283 at
mark.c:759
frame #1: 0x000000010000db66
libgcjgc.1.dylib`GC_mark_some(cold_gc_frame=0x0000700000080d6c) + 518 at
mark.c:378
frame #2: 0x00000001000054d8
libgcjgc.1.dylib`GC_stopped_mark(stop_func=0x00000001000051c0) + 120 at
alloc.c:531
frame #3: 0x0000000100005d31
libgcjgc.1.dylib`GC_try_to_collect_inner(stop_func=0x00000001000051c0) + 145 at
alloc.c:378
frame #4: 0x0000000100005ffc
libgcjgc.1.dylib`GC_try_to_collect(stop_func=0x00000001000051c0) + 92 at
alloc.c:781
frame #5: 0x0000000100006070 libgcjgc.1.dylib`GC_gcollect + 16 at
alloc.c:794
frame #6: 0x0000000100000d18 thread_leak_test`test + 72
frame #7: 0x00000001000145c4
libgcjgc.1.dylib`GC_start_routine(arg=<unavailable>) + 244 at
pthread_support.c:1301
frame #8: 0x00007fff9e60fc8f libsystem_pthread.dylib`_pthread_body + 131
frame #9: 0x00007fff9e60fc0c libsystem_pthread.dylib`_pthread_start + 168
frame #10: 0x00007fff9e60d3f5 libsystem_pthread.dylib`thread_start + 13
(lldb)
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/66838] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
2015-07-12 15:21 ` [Bug rtl-optimization/66838] " ubizjak at gmail dot com
@ 2015-07-12 16:42 ` ubizjak at gmail dot com
2015-07-15 7:29 ` uros at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ubizjak at gmail dot com @ 2015-07-12 16:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 35961
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35961&action=edit
Untested patch
Patch that adds missing CALL_INSN_FUNCTION_USAGE processing to
postreload.c/reload_cse_move2add.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/66838] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
Date: Sun, 12 Jul 2015 16:43:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
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----------------------------------------------------------------------------
Status|NEW |ASSIGNED
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From: "andrew.n.sutton at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/66834] [concepts] concept parameter kind mismatch causes hard error
Date: Sun, 12 Jul 2015 20:33:00 -0000
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--- Comment #7 from Andrew Sutton <andrew.n.sutton at gmail dot com> ---
> I would expect a partial ordering to prefer the two-parameter overload in that
> case. But yeah, it's a separate issue.
The problem is that partial ordering doesn't apply to template
parameters whose arguments can only be given explicitly. I got caught
by this last year, and sent an email to core, and then (I think) Ville
submitted a core issue or NB comment (I don't remember the details).
Andrew
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/66838] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
2015-07-12 15:21 ` [Bug rtl-optimization/66838] " ubizjak at gmail dot com
2015-07-12 16:42 ` ubizjak at gmail dot com
@ 2015-07-15 7:29 ` uros at gcc dot gnu.org
2015-07-16 9:15 ` [Bug rtl-optimization/66838] [5 Regression] " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: uros at gcc dot gnu.org @ 2015-07-15 7:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
--- Comment #4 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Jul 15 07:28:33 2015
New Revision: 225806
URL: https://gcc.gnu.org/viewcvs?rev=225806&root=gcc&view=rev
Log:
PR rtl-optimization/66838
* postreload.c (reload_cse_move2add): Also process
CALL_INSN_FUNCTION_USAGE when resetting information of
call-clobbered registers.
testsuite/ChangeLog:
PR rtl-optimization/66838
* gcc.target/i386/pr66838.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr66838.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/postreload.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/66838] [5 Regression] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
` (2 preceding siblings ...)
2015-07-15 7:29 ` uros at gcc dot gnu.org
@ 2015-07-16 9:15 ` rguenth at gcc dot gnu.org
2015-07-17 13:51 ` uros at gcc dot gnu.org
2015-07-17 14:06 ` ubizjak at gmail dot com
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-07-16 9:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|5.2 |5.3
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 5.2 is being released, adjusting target milestone to 5.3.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/66838] [5 Regression] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
` (3 preceding siblings ...)
2015-07-16 9:15 ` [Bug rtl-optimization/66838] [5 Regression] " rguenth at gcc dot gnu.org
@ 2015-07-17 13:51 ` uros at gcc dot gnu.org
2015-07-17 14:06 ` ubizjak at gmail dot com
5 siblings, 0 replies; 7+ messages in thread
From: uros at gcc dot gnu.org @ 2015-07-17 13:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
--- Comment #7 from uros at gcc dot gnu.org ---
Author: uros
Date: Fri Jul 17 13:50:38 2015
New Revision: 225935
URL: https://gcc.gnu.org/viewcvs?rev=225935&root=gcc&view=rev
Log:
Backport from mainline:
2015-07-15 Uros Bizjak <ubizjak@gmail.com>
PR rtl-optimization/66838
* postreload.c (reload_cse_move2add): Also process
CALL_INSN_FUNCTION_USAGE when resetting information of
call-clobbered registers.
testsuite/ChangeLog:
Backport from mainline:
2015-07-15 Uros Bizjak <ubizjak@gmail.com>
PR rtl-optimization/66838
* gcc.target/i386/pr66838.c: New test.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.target/i386/pr66838.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/postreload.c
branches/gcc-5-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/66838] [5 Regression] Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters
2015-07-11 0:59 [Bug c/66838] New: Calling multiple SYSV AMD64 ABI functions from MS x64 ABI one results in clobbered parameters michal.ruza at gmail dot com
` (4 preceding siblings ...)
2015-07-17 13:51 ` uros at gcc dot gnu.org
@ 2015-07-17 14:06 ` ubizjak at gmail dot com
5 siblings, 0 replies; 7+ messages in thread
From: ubizjak at gmail dot com @ 2015-07-17 14:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66838
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed.
>From gcc-bugs-return-492635-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Jul 17 14:12:17 2015
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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/66865] [6 Regression] wine64 segfaults from gcc in trunk (r225757) (regression)
Date: Fri, 17 Jul 2015 14:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66865
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2015-07-17
CC| |ubizjak at gmail dot com
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--- Comment #14 from Uroš Bizjak <ubizjak at gmail dot com> ---
Can you please retry now that PR 66782 and PR 66838 are both fixed on mainline
and gcc-5 branch?
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From: "barry.revzin at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/66914] New: incorrect template partial ordering prefers non-member function instead of being ambiguous
Date: Fri, 17 Jul 2015 14:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf914
Bug ID: 66914
Summary: incorrect template partial ordering prefers non-member
function instead of being ambiguous
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: barry.revzin at gmail dot com
Target Milestone: ---
The following code:
#include <iostream>
template <typename N>
struct A {
template <typename T>
void operator+(T const&) {
std::cout << "member\n";
}
};
template <typename N>
void operator+(A<N>&, int const& ) {
std::cout << "free\n";
}
int main()
{
A<int> a;
a + 2;
}
compiles and prints "free". It should be ambiguous as neither function template
is more specialized than the other.
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