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* [Bug c/63738] New: ssa corruption when compiled with -O3
@ 2014-11-04 16:33 guido at fceia dot unr.edu.ar
2014-11-04 16:37 ` [Bug tree-optimization/63738] [5 Regression] " mpolacek at gcc dot gnu.org
` (11 more replies)
0 siblings, 12 replies; 13+ messages in thread
From: guido at fceia dot unr.edu.ar @ 2014-11-04 16:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Bug ID: 63738
Summary: ssa corruption when compiled with -O3
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: guido at fceia dot unr.edu.ar
Created attachment 33883
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33883&action=edit
The data about the bug
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
@ 2014-11-04 16:37 ` mpolacek at gcc dot gnu.org
2014-11-04 17:22 ` glisse at gcc dot gnu.org
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2014-11-04 16:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Version|tree-ssa |5.0
Last reconfirmed| |2014-11-04
Component|c |tree-optimization
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
Summary|ssa corruption when |[5 Regression] ssa
|compiled with -O3 |corruption when compiled
| |with -O3
Target Milestone|--- |5.0
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
2014-11-04 16:37 ` [Bug tree-optimization/63738] [5 Regression] " mpolacek at gcc dot gnu.org
@ 2014-11-04 17:22 ` glisse at gcc dot gnu.org
2014-11-04 21:01 ` [Bug tree-optimization/63738] [4.9/5 " rguenth at gcc dot gnu.org
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: glisse at gcc dot gnu.org @ 2014-11-04 17:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |glisse at gcc dot gnu.org
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
Most likely my fault :-(
Might have to revert until I have time to fix it...
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
2014-11-04 16:37 ` [Bug tree-optimization/63738] [5 Regression] " mpolacek at gcc dot gnu.org
2014-11-04 17:22 ` glisse at gcc dot gnu.org
@ 2014-11-04 21:01 ` rguenth at gcc dot gnu.org
2014-11-20 12:47 ` rguenth at gcc dot gnu.org
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-04 21:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (2 preceding siblings ...)
2014-11-04 21:01 ` [Bug tree-optimization/63738] [4.9/5 " rguenth at gcc dot gnu.org
@ 2014-11-20 12:47 ` rguenth at gcc dot gnu.org
2014-11-26 11:06 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-20 12:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (3 preceding siblings ...)
2014-11-20 12:47 ` rguenth at gcc dot gnu.org
@ 2014-11-26 11:06 ` rguenth at gcc dot gnu.org
2014-11-26 11:07 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-26 11:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's the vectorizer via data-ref analysis that creates overlapping life-ranges
here. I have a trivial fix.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (4 preceding siblings ...)
2014-11-26 11:06 ` rguenth at gcc dot gnu.org
@ 2014-11-26 11:07 ` rguenth at gcc dot gnu.org
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-26 11:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|5.0 |4.9.3
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (5 preceding siblings ...)
2014-11-26 11:07 ` rguenth at gcc dot gnu.org
@ 2014-11-26 15:17 ` rguenth at gcc dot gnu.org
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-26 15:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Nov 26 15:16:24 2014
New Revision: 218088
URL: https://gcc.gnu.org/viewcvs?rev=218088&root=gcc&view=rev
Log:
2014-11-26 Richard Biener <rguenther@suse.de>
PR middle-end/63738
* tree-data-ref.c (split_constant_offset_1): Do not follow
SSA edges for SSA names with SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
* gcc.dg/torture/pr63738.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr63738.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (6 preceding siblings ...)
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
@ 2014-11-26 15:17 ` rguenth at gcc dot gnu.org
2014-11-26 15:18 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-26 15:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Known to fail| |4.9.2
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (7 preceding siblings ...)
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
@ 2014-11-26 15:18 ` rguenth at gcc dot gnu.org
2014-12-01 6:42 ` olegendo at gcc dot gnu.org
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-26 15:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Nov 26 15:17:31 2014
New Revision: 218089
URL: https://gcc.gnu.org/viewcvs?rev=218089&root=gcc&view=rev
Log:
2014-11-26 Richard Biener <rguenther@suse.de>
PR middle-end/63738
* tree-data-ref.c (split_constant_offset_1): Do not follow
SSA edges for SSA names with SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
* gcc.dg/torture/pr63738.c: New testcase.
Added:
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/torture/pr63738.c
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
branches/gcc-4_9-branch/gcc/tree-data-ref.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (8 preceding siblings ...)
2014-11-26 15:18 ` rguenth at gcc dot gnu.org
@ 2014-12-01 6:42 ` olegendo at gcc dot gnu.org
2014-12-01 9:35 ` rguenth at gcc dot gnu.org
2014-12-01 9:37 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: olegendo at gcc dot gnu.org @ 2014-12-01 6:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
Oleg Endo <olegendo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |olegendo at gcc dot gnu.org
--- Comment #9 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Richard, the testcase gcc.dg/torture/pr63738.c is causing an excess error here:
warning: implicit declaration of function '_setjmp'
[-Wimplicit-function-declaration]
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (9 preceding siblings ...)
2014-12-01 6:42 ` olegendo at gcc dot gnu.org
@ 2014-12-01 9:35 ` rguenth at gcc dot gnu.org
2014-12-01 9:37 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-12-01 9:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Dec 1 09:35:15 2014
New Revision: 218201
URL: https://gcc.gnu.org/viewcvs?rev=218201&root=gcc&view=rev
Log:
2014-12-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/63738
* gcc.dg/torture/pr63738.c: Fix call to setjmp.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/torture/pr63738.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/63738] [4.9/5 Regression] ssa corruption when compiled with -O3
2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
` (10 preceding siblings ...)
2014-12-01 9:35 ` rguenth at gcc dot gnu.org
@ 2014-12-01 9:37 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-12-01 9:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63738
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Dec 1 09:36:56 2014
New Revision: 218202
URL: https://gcc.gnu.org/viewcvs?rev=218202&root=gcc&view=rev
Log:
2014-12-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/63738
* gcc.dg/torture/pr63738.c: Fix call to setjmp.
Modified:
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/torture/pr63738.c
^ permalink raw reply [flat|nested] 13+ messages in thread
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2014-11-04 16:33 [Bug c/63738] New: ssa corruption when compiled with -O3 guido at fceia dot unr.edu.ar
2014-11-04 16:37 ` [Bug tree-optimization/63738] [5 Regression] " mpolacek at gcc dot gnu.org
2014-11-04 17:22 ` glisse at gcc dot gnu.org
2014-11-04 21:01 ` [Bug tree-optimization/63738] [4.9/5 " rguenth at gcc dot gnu.org
2014-11-20 12:47 ` rguenth at gcc dot gnu.org
2014-11-26 11:06 ` rguenth at gcc dot gnu.org
2014-11-26 11:07 ` rguenth at gcc dot gnu.org
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
2014-11-26 15:17 ` rguenth at gcc dot gnu.org
2014-11-26 15:18 ` rguenth at gcc dot gnu.org
2014-12-01 6:42 ` olegendo at gcc dot gnu.org
2014-12-01 9:35 ` rguenth at gcc dot gnu.org
2014-12-01 9:37 ` rguenth at gcc dot gnu.org
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