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* [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times
@ 2013-05-17 11:08 hp at gcc dot gnu.org
2013-05-17 11:09 ` [Bug regression/57313] " hp at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: hp at gcc dot gnu.org @ 2013-05-17 11:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57313
Bug ID: 57313
Summary: [4.9 Regression]: gcc.dg/binop-xor3.c
scan-tree-dump-times
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: regression
Assignee: unassigned at gcc dot gnu.org
Reporter: hp at gcc dot gnu.org
CC: glisse at gcc dot gnu.org
Host: x86_64-unknown-linux-gnu
Target: cris-axis-elf
Created attachment 30139
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30139&action=edit
binop-xor3.c.165t.optimized
This test previously passed, now it fails.
A patch in the revision range (last_known_working:first_known_failing)
198890:198899
exposed or caused this regression. Since then it fails as follows:
Running /tmp/hpautotest-gcc0/gcc/gcc/testsuite/gcc.dg/dg.exp ...
FAIL: gcc.dg/binop-xor3.c scan-tree-dump-times optimized "\\^" 1
The files binop-xor3.s and binop-xor3.c.165t.optimized are attached.
Author of the most suspect patch (having touched the actual test-case and
related code) in revision range CC:ed.
Apparently, cris-elf is just one of many targets for which this test now fails;
I guess half of them regressed but x86_64 and i686 (and ia64, sh4, spu), as
seen on gcc-testresults@ since then: s390-ibm-linux-gnu
<http://gcc.gnu.org/ml/gcc-testresults/2013-05/msg01643.html>,
m68k-unknown-linux-gnu
<http://gcc.gnu.org/ml/gcc-testresults/2013-05/msg01593.html>,
powerpc-ibm-aix7.1.0.0
<http://gcc.gnu.org/ml/gcc-testresults/2013-05/msg01567.html>,
powerpc64-unknown-linux-gnu
<http://gcc.gnu.org/ml/gcc-testresults/2013-05/msg01709.html>.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/57313] [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times
2013-05-17 11:08 [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times hp at gcc dot gnu.org
@ 2013-05-17 11:09 ` hp at gcc dot gnu.org
2013-05-17 11:17 ` glisse at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: hp at gcc dot gnu.org @ 2013-05-17 11:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57313
--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Created attachment 30140
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30140&action=edit
binop-xor3.s
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/57313] [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times
2013-05-17 11:08 [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times hp at gcc dot gnu.org
2013-05-17 11:09 ` [Bug regression/57313] " hp at gcc dot gnu.org
@ 2013-05-17 11:17 ` glisse at gcc dot gnu.org
2013-05-17 12:11 ` glisse at gcc dot gnu.org
2013-05-17 15:33 ` [Bug testsuite/57313] " glisse at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: glisse at gcc dot gnu.org @ 2013-05-17 11:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57313
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
It was xfailed before. It started passing as a side effect of r198893 so I
removed the xfail, but apparently it now depends on the platform :-(
What do you get with -O -fdump-tree-original?
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/57313] [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times
2013-05-17 11:08 [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times hp at gcc dot gnu.org
2013-05-17 11:09 ` [Bug regression/57313] " hp at gcc dot gnu.org
2013-05-17 11:17 ` glisse at gcc dot gnu.org
@ 2013-05-17 12:11 ` glisse at gcc dot gnu.org
2013-05-17 15:33 ` [Bug testsuite/57313] " glisse at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: glisse at gcc dot gnu.org @ 2013-05-17 12:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57313
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Marc Glisse from comment #2)
> What do you get with -O -fdump-tree-original?
I tried, and the transformation doesn't happen at all (I was wondering if it
might be undone by another pass later).
See http://gcc.gnu.org/ml/gcc-patches/2013-05/msg00981.html for more
discussion.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug testsuite/57313] [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times
2013-05-17 11:08 [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times hp at gcc dot gnu.org
` (2 preceding siblings ...)
2013-05-17 12:11 ` glisse at gcc dot gnu.org
@ 2013-05-17 15:33 ` glisse at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: glisse at gcc dot gnu.org @ 2013-05-17 15:33 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57313
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> ---
r199020 | glisse | 2013-05-17 17:31:02 +0200 (Fri, 17 May 2013) | 6 lines
2013-05-17 Marc Glisse <marc.glisse@inria.fr>
PR testsuite/57313
* gcc.dg/binop-xor3.c: Restrict to platforms known to work (x86).
^ permalink raw reply [flat|nested] 5+ messages in thread
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2013-05-17 11:08 [Bug regression/57313] New: [4.9 Regression]: gcc.dg/binop-xor3.c scan-tree-dump-times hp at gcc dot gnu.org
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2013-05-17 11:17 ` glisse at gcc dot gnu.org
2013-05-17 12:11 ` glisse at gcc dot gnu.org
2013-05-17 15:33 ` [Bug testsuite/57313] " glisse at gcc dot gnu.org
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