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* [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
@ 2011-10-29 15:14 ebotcazou at gcc dot gnu.org
2011-10-30 9:16 ` [Bug target/50911] " rguenth at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-10-29 15:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Bug #: 50911
Summary: [4.7 regression] assertion failure in
expand_vec_perm_interleave2 with -msse
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: ebotcazou@gcc.gnu.org
Target: i?86-*-* x86_64-*-*
Created attachment 25660
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25660
Concatenated testcase
This is a regression introduced by the recent changes in the x86 back-end which
are related to vectorization. If you compile the to-be-gnatchoped testcase
with -O3 -msse, you get:
eric@atlantis:~/build/gcc> gcc -S -gnatws -O3 -msse loop_optimization9.adb
+===========================GNAT BUG DETECTED==============================+
| 4.7.0 20111028 (experimental) [trunk revision 180610] (i586-suse-linux-gnu)
GCC error:|
| in expand_vec_perm_interleave2, at config/i386/i386.c:35573 |
| Error detected around gcc/ada/rts/s-string.ads:58:4
This compiles fine with -O3 -msse2 instead. The testcase can directly be added
to the testsuite as gnat.dg/loop_optimization9.ad[sb].
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
@ 2011-10-30 9:16 ` rguenth at gcc dot gnu.org
2011-11-05 11:59 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-10-30 9:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
2011-10-30 9:16 ` [Bug target/50911] " rguenth at gcc dot gnu.org
@ 2011-11-05 11:59 ` rguenth at gcc dot gnu.org
2011-11-09 13:57 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-11-05 11:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
2011-10-30 9:16 ` [Bug target/50911] " rguenth at gcc dot gnu.org
2011-11-05 11:59 ` rguenth at gcc dot gnu.org
@ 2011-11-09 13:57 ` jakub at gcc dot gnu.org
2011-11-09 15:11 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-09 13:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-11-09
CC| |jakub at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-09 13:52:58 UTC ---
Shorter testcase (in a language I understand ;) ):
struct A { void *a, *b; };
void
foo (struct A *p)
{
int i;
for (i = 0; i < 1024; i++)
{
p[i].a = 0;
p[i].b = "abc";
}
}
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
` (2 preceding siblings ...)
2011-11-09 13:57 ` jakub at gcc dot gnu.org
@ 2011-11-09 15:11 ` jakub at gcc dot gnu.org
2011-11-09 18:31 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-09 15:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-09 15:01:50 UTC ---
Started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180450
I'll have a look.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
` (3 preceding siblings ...)
2011-11-09 15:11 ` jakub at gcc dot gnu.org
@ 2011-11-09 18:31 ` jakub at gcc dot gnu.org
2011-11-09 21:51 ` jakub at gcc dot gnu.org
2011-11-09 21:54 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-09 18:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-09 18:26:12 UTC ---
Created attachment 25772
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25772
gcc47-pr50911.patch
Untested fix.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
` (4 preceding siblings ...)
2011-11-09 18:31 ` jakub at gcc dot gnu.org
@ 2011-11-09 21:51 ` jakub at gcc dot gnu.org
2011-11-09 21:54 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-09 21:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-09 21:37:31 UTC ---
Author: jakub
Date: Wed Nov 9 21:37:27 2011
New Revision: 181238
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181238
Log:
PR target/50911
* config/i386/i386.c (expand_vec_perm_interleave2): If d->vmode is
V4SImode, !TARGET_SSE2 and punpck[lh]* is needed, change dremap.vmode
to V4SFmode.
* gcc.dg/torture/vshuf-16.inc: Add interleave low and high
permutations.
* gcc.dg/torture/vshuf-32.inc: Likewise.
* gcc.dg/torture/vshuf-4.inc: Likewise.
* gcc.dg/torture/vshuf-8.inc: Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/torture/vshuf-16.inc
trunk/gcc/testsuite/gcc.dg/torture/vshuf-32.inc
trunk/gcc/testsuite/gcc.dg/torture/vshuf-4.inc
trunk/gcc/testsuite/gcc.dg/torture/vshuf-8.inc
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/50911] [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse
2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
` (5 preceding siblings ...)
2011-11-09 21:51 ` jakub at gcc dot gnu.org
@ 2011-11-09 21:54 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-09 21:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50911
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-09 21:50:58 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2011-10-29 15:14 [Bug target/50911] New: [4.7 regression] assertion failure in expand_vec_perm_interleave2 with -msse ebotcazou at gcc dot gnu.org
2011-10-30 9:16 ` [Bug target/50911] " rguenth at gcc dot gnu.org
2011-11-05 11:59 ` rguenth at gcc dot gnu.org
2011-11-09 13:57 ` jakub at gcc dot gnu.org
2011-11-09 15:11 ` jakub at gcc dot gnu.org
2011-11-09 18:31 ` jakub at gcc dot gnu.org
2011-11-09 21:51 ` jakub at gcc dot gnu.org
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