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* [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
@ 2013-02-07 18:51 ppluzhnikov at google dot com
2013-02-07 20:20 ` [Bug c/56246] " jakub at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: ppluzhnikov at google dot com @ 2013-02-07 18:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
Bug #: 56246
Summary: [4.8 regression] ICE in assign_by_spills, at
lra-assigns.c:1262
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: ppluzhnikov@google.com
Test case:
void NoBarrier_AtomicExchange (long long *ptr) {
while (__sync_val_compare_and_swap (ptr, 1, 0) );
}
Using g++ (GCC) 4.8.0 20130205 (experimental):
g++ -c -m32 -O2 -fPIC -fno-omit-frame-pointer test.ii
test.ii: In function 'void NoBarrier_AtomicExchange(long long int*)':
test.ii:3:1: internal compiler error: in assign_by_spills, at
lra-assigns.c:1262
}
^
0x995de3 assign_by_spills
../../gcc/lra-assigns.c:1262
0x996a93 lra_assign()
../../gcc/lra-assigns.c:1419
0x992d11 lra(_IO_FILE*)
../../gcc/lra.c:2308
0x95ae78 do_reload
../../gcc/ira.c:4623
0x95ae78 rest_of_handle_reload
../../gcc/ira.c:4736
Please submit a full bug report,
with preprocessed source if appropriate.
Same crash after update to r195864.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
@ 2013-02-07 20:20 ` jakub at gcc dot gnu.org
2013-02-08 15:32 ` [Bug rtl-optimization/56246] " rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-02-07 20:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-02-07
CC| |jakub at gcc dot gnu.org,
| |vmakarov at gcc dot gnu.org
Target Milestone|--- |4.8.0
Ever Confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-07 20:19:09 UTC ---
-m32 -march=i686 -mtune=generic -O2 -fno-omit-frame-pointer -fpic
needed for me.
Regressed with LRA merge.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug rtl-optimization/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
2013-02-07 20:20 ` [Bug c/56246] " jakub at gcc dot gnu.org
@ 2013-02-08 15:32 ` rguenth at gcc dot gnu.org
2013-02-08 16:40 ` vmakarov at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-02-08 15:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ra
Target| |i686-*-*
Priority|P3 |P1
Component|c |rtl-optimization
Version|unknown |4.8.0
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug rtl-optimization/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
2013-02-07 20:20 ` [Bug c/56246] " jakub at gcc dot gnu.org
2013-02-08 15:32 ` [Bug rtl-optimization/56246] " rguenth at gcc dot gnu.org
@ 2013-02-08 16:40 ` vmakarov at gcc dot gnu.org
2013-02-08 21:59 ` vmakarov at gcc dot gnu.org
2013-02-12 18:14 ` steven at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: vmakarov at gcc dot gnu.org @ 2013-02-08 16:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
--- Comment #2 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2013-02-08 16:39:37 UTC ---
(In reply to comment #1)
> -m32 -march=i686 -mtune=generic -O2 -fno-omit-frame-pointer -fpic
> needed for me.
> Regressed with LRA merge.
I'll be working on it.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
` (2 preceding siblings ...)
2013-02-08 16:40 ` vmakarov at gcc dot gnu.org
@ 2013-02-08 21:59 ` vmakarov at gcc dot gnu.org
2013-02-12 18:14 ` steven at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: vmakarov at gcc dot gnu.org @ 2013-02-08 21:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2013-02-08 21:59:16 UTC ---
Author: vmakarov
Date: Fri Feb 8 21:59:11 2013
New Revision: 195902
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195902
Log:
2013-02-08 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/56246
* lra-constraints.c (simplify_operand_subreg): Try tor reuse
reload pseudo.
* lra.c (lra): Clear lra_optional_reload_pseudos only when all
constraints are satisfied.
2013-02-08 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/56246
* gcc.target/i386/pr56246.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr56246.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lra-constraints.c
trunk/gcc/lra.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug rtl-optimization/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262
2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
` (3 preceding siblings ...)
2013-02-08 21:59 ` vmakarov at gcc dot gnu.org
@ 2013-02-12 18:14 ` steven at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: steven at gcc dot gnu.org @ 2013-02-12 18:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2013-02-12 18:13:11 UTC ---
as per comment #3.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-02-12 18:14 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2013-02-07 18:51 [Bug c/56246] New: [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262 ppluzhnikov at google dot com
2013-02-07 20:20 ` [Bug c/56246] " jakub at gcc dot gnu.org
2013-02-08 15:32 ` [Bug rtl-optimization/56246] " rguenth at gcc dot gnu.org
2013-02-08 16:40 ` vmakarov at gcc dot gnu.org
2013-02-08 21:59 ` vmakarov at gcc dot gnu.org
2013-02-12 18:14 ` steven at gcc dot gnu.org
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