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* [Bug middle-end/67639] New: ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697
@ 2015-09-19 18:20 su at cs dot ucdavis.edu
2015-09-21 7:32 ` [Bug middle-end/67639] " rguenth at gcc dot gnu.org
2015-09-21 10:01 ` mpolacek at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: su at cs dot ucdavis.edu @ 2015-09-19 18:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67639
Bug ID: 67639
Summary: ICE at -O1 and above on x86_64-linux-gnu in
expand_gimple_basic_block, at cfgexpand.c:5697
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
Target Milestone: ---
The following (invalid) code causes an ICE when compiled with the current gcc
trunk at -O1 and above on x86_64-linux-gnu in the 64-bit mode (but not in
32-bit mode).
This is a regression from 5.2.x.
$ 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/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk
--enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
gcc version 6.0.0 20150919 (experimental) [trunk revision 227932] (GCC)
$
$ gcc-trunk -m64 -O0 -c small.c
small.c: In function ‘foo’:
small.c:5:17: error: invalid register name for ‘x’
register long x asm ("r2") = p;
^
$ gcc-trunk -m32 -O1 -c small.c
small.c: In function ‘foo’:
small.c:5:17: error: invalid register name for ‘x’
register long x asm ("r2") = p;
^
$ gcc-5.2 -m64 -O1 -c small.c
small.c: In function ‘foo’:
small.c:5:17: error: invalid register name for ‘x’
register long x asm ("r2") = p;
^
$
$ gcc-trunk -m64 -O1 -c small.c
small.c: In function ‘foo’:
small.c:5:17: error: invalid register name for ‘x’
register long x asm ("r2") = p;
^
small.c:2:1: internal compiler error: tree check: expected ssa_name, have
var_decl in expand_gimple_basic_block, at cfgexpand.c:5697
foo (int p)
^
0xd292cc tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc-trunk/gcc/tree.c:9512
0x6f8e36 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc-trunk/gcc/tree.h:2858
0x6f8e36 expand_gimple_basic_block
../../gcc-trunk/gcc/cfgexpand.c:5697
0x6fdfc6 execute
../../gcc-trunk/gcc/cfgexpand.c:6286
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.
$
-----------------------------------------------
void
foo (int p)
{
int t;
register long x asm ("r2") = p;
__asm ("mov %0, %1;" : "=r" (t), "=r" (t), "=r" (t), "=r" (x) : "0" (x));
}
>From gcc-bugs-return-497580-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Sep 19 19:34:29 2015
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Subject: [Bug ipa/66181] [6 Regression]: /usr/include/bits/types.h:134:16: ICE: verify_type failed
Date: Sat, 19 Sep 2015 19:34:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66181
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #17 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Oleg Endo from comment #16)
> Can this be closed?
Yes.
>From gcc-bugs-return-497581-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Sep 19 20:50:14 2015
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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/67640] New: driver passes -fdiagnostics-color= always last
Date: Sat, 19 Sep 2015 20:50:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idg640
Bug ID: 67640
Summary: driver passes -fdiagnostics-color= always last
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
Assignee: unassigned at gcc dot gnu.org
Reporter: manu at gcc dot gnu.org
Target Milestone: ---
The driver alters the order when passing command-line options to the compiler
proper. This means that -fdiagnostics-color has no chance to disable color
before the first error is emitted:
$. /xgcc -B ./ ~/test.c -fdiagnostics-color=never -Wnoexcept -E -### 2>&1 |
grep cc1
./cc1 -E -quiet -iprefix ./../lib/gcc/x86_64-pc-linux-gnu/6.0.0/ -isystem
./include -isystem ./include-fixed ./test.c "-mtune=generic" "-march=x86-64"
-Wnoexcept "-fdiagnostics-color=never"
$ ./xgcc -B ./ ~/test.c -Wnoexcept -fdiagnostics-color=never -E -### 2>&1 |
grep cc1
./cc1 -E -quiet -iprefix ./../lib/gcc/x86_64-pc-linux-gnu/6.0.0/ -isystem
./include -isystem ./include-fixed ./test.c "-mtune=generic" "-march=x86-64"
-Wnoexcept "-fdiagnostics-color=never"
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/67639] ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697
2015-09-19 18:20 [Bug middle-end/67639] New: ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697 su at cs dot ucdavis.edu
@ 2015-09-21 7:32 ` rguenth at gcc dot gnu.org
2015-09-21 10:01 ` mpolacek at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-09-21 7:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67639
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-09-21
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. We shouldn't even get to expanding a BB if there were errors.
Of course the issue is (again - dup?) that the "invalid register name" error
is emitted during expansion rather than during parsing.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/67639] ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697
2015-09-19 18:20 [Bug middle-end/67639] New: ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697 su at cs dot ucdavis.edu
2015-09-21 7:32 ` [Bug middle-end/67639] " rguenth at gcc dot gnu.org
@ 2015-09-21 10:01 ` mpolacek at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2015-09-21 10:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67639
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r214526.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-09-19 18:20 [Bug middle-end/67639] New: ICE at -O1 and above on x86_64-linux-gnu in expand_gimple_basic_block, at cfgexpand.c:5697 su at cs dot ucdavis.edu
2015-09-21 7:32 ` [Bug middle-end/67639] " rguenth at gcc dot gnu.org
2015-09-21 10:01 ` mpolacek at gcc dot gnu.org
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