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* [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
@ 2013-10-18 3:46 hp at gcc dot gnu.org
2013-10-18 3:56 ` [Bug tree-optimization/58776] " hp at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: hp at gcc dot gnu.org @ 2013-10-18 3:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Bug ID: 58776
Summary: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c
scan-tree-dump-times vect "vectorized 1 loops" 1
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: hp at gcc dot gnu.org
CC: davidxl at gcc dot gnu.org
Host: x86_64-unknown-linux-gnu
Target: cris-axis-elf
This test previously passed, now it fails.
A patch in the revision range (last_known_working:first_known_failing)
202971:202981 (most likely r202980)
exposed or caused this regression. Since then it fails as follows:
Running /tmp/hpautotest-gcc1/gcc/gcc/testsuite/gcc.dg/tree-ssa/tree-ssa.exp ...
...
FAIL: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1
loops" 1
No hints from gcc.log. Committer of r202980 CC:ed.
Adjustment like those in PR58556 and
<http://gcc.gnu.org/ml/gcc-patches/2013-10/msg01439.html> did not help; there
may be a larger issue here.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
@ 2013-10-18 3:56 ` hp at gcc dot gnu.org
2013-10-18 3:57 ` hp at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hp at gcc dot gnu.org @ 2013-10-18 3:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Created attachment 31029
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31029&action=edit
gen-vect-32.c vect dump r203803 cris-elf
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
2013-10-18 3:56 ` [Bug tree-optimization/58776] " hp at gcc dot gnu.org
@ 2013-10-18 3:57 ` hp at gcc dot gnu.org
2013-10-18 8:16 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hp at gcc dot gnu.org @ 2013-10-18 3:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
--- Comment #2 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Created attachment 31030
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31030&action=edit
Ditto generated assembly - no vectorizations done
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
2013-10-18 3:56 ` [Bug tree-optimization/58776] " hp at gcc dot gnu.org
2013-10-18 3:57 ` hp at gcc dot gnu.org
@ 2013-10-18 8:16 ` rguenth at gcc dot gnu.org
2013-11-05 15:06 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-18 8:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (2 preceding siblings ...)
2013-10-18 8:16 ` rguenth at gcc dot gnu.org
@ 2013-11-05 15:06 ` rguenth at gcc dot gnu.org
2013-11-05 23:37 ` hp at gcc dot gnu.org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-05 15:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2013-11-05
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Does it work meanwhile?
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (3 preceding siblings ...)
2013-11-05 15:06 ` rguenth at gcc dot gnu.org
@ 2013-11-05 23:37 ` hp at gcc dot gnu.org
2013-11-19 10:21 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hp at gcc dot gnu.org @ 2013-11-05 23:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #4 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> Does it work meanwhile?
Short answer: no.
Longer answer:
Depends on the definition of "work". Status is unchanged at r204406.
The test passes execution though. From gcc.log:
PASS: gcc.dg/tree-ssa/gen-vect-32.c (test for excess errors)
PASS: gcc.dg/tree-ssa/gen-vect-32.c execution test
FAIL: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1
loops" 1
PASS: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "Vectorizing an
unaligned access" 0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (4 preceding siblings ...)
2013-11-05 23:37 ` hp at gcc dot gnu.org
@ 2013-11-19 10:21 ` rguenth at gcc dot gnu.org
2014-01-17 10:24 ` [Bug testsuite/58776] " jakub at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 10:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Version|4.7.0 |4.9.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug testsuite/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (5 preceding siblings ...)
2013-11-19 10:21 ` rguenth at gcc dot gnu.org
@ 2014-01-17 10:24 ` jakub at gcc dot gnu.org
2014-01-17 14:44 ` jakub at gcc dot gnu.org
2014-01-17 14:54 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-01-17 10:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31869
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31869&action=edit
gcc49-pr58776.patch
For vectorization at -O2 the default now is the cheap cost model which doesn't
allow peeling for alignment, so what you get is IMHO desirable.
I think we should just add -fno-vect-cost-model to this test.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug testsuite/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (6 preceding siblings ...)
2014-01-17 10:24 ` [Bug testsuite/58776] " jakub at gcc dot gnu.org
@ 2014-01-17 14:44 ` jakub at gcc dot gnu.org
2014-01-17 14:54 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-01-17 14:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan 17 14:43:37 2014
New Revision: 206712
URL: http://gcc.gnu.org/viewcvs?rev=206712&root=gcc&view=rev
Log:
PR testsuite/58776
* gcc.dg/tree-ssa-gen-vect-32.c: Add -fno-vect-cost-model to
dg-options, use dg-additional-options for i?86/x86_64 to avoid
option duplication.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/gen-vect-32.c
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug testsuite/58776] [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
2013-10-18 3:46 [Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1 hp at gcc dot gnu.org
` (7 preceding siblings ...)
2014-01-17 14:44 ` jakub at gcc dot gnu.org
@ 2014-01-17 14:54 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-01-17 14:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
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