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* [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target.
@ 2013-10-21 13:25 ysrumyan at gmail dot com
2013-10-21 14:24 ` [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 " rguenth at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: ysrumyan at gmail dot com @ 2013-10-21 13:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Bug ID: 58826
Summary: Runfail on CPU2006 436.cactusADM with after r203739
for core-avx2 target.
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ysrumyan at gmail dot com
To reproduce it is sufficient to compile only one source file -
StaggeredLeapfrog2.F which must be preprocessed. In rtl-dump after reload we
can see the following erroneous of instruction which try to write to RO
section:
(insn 10377 15507 10379 49 (set (mem/u/c:V4DF (symbol_ref/u:DI ("*.LC10")
[flags 0x2]) [3 S32 A256])
(reg:V4DF 27 xmm6 [10848])) 1158 {*movv4df_internal}
(nil))
The following options were used to compile:
-march=core-avx2 -Ofast -funroll-loops -fno-second-underscore
although the last option looks redundant.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
@ 2013-10-21 14:24 ` rguenth at gcc dot gnu.org
2013-10-21 14:37 ` ysrumyan at gmail dot com
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-21 14:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-10-21
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look though I doubt I caused this (if you bisect past that
revision
and revert the PR58464 fix as well)
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
2013-10-21 14:24 ` [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 " rguenth at gcc dot gnu.org
@ 2013-10-21 14:37 ` ysrumyan at gmail dot com
2013-10-23 8:00 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: ysrumyan at gmail dot com @ 2013-10-21 14:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
--- Comment #2 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
In fact LRA is responsible for this failure - there is a bug in constant
regeneration. LRA correctly regenerates all occurrences of virtual register
which is not allocated(i.e. it does not has a register) but it must delete its
spill/reload since this virtual register is dead.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
2013-10-21 14:24 ` [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 " rguenth at gcc dot gnu.org
2013-10-21 14:37 ` ysrumyan at gmail dot com
@ 2013-10-23 8:00 ` rguenth at gcc dot gnu.org
2013-10-23 8:01 ` [Bug rtl-optimization/58826] [4.9 Regression] " rguenth at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-23 8:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ra
Status|ASSIGNED |NEW
CC| |vmakarov at gcc dot gnu.org
Assignee|rguenth at gcc dot gnu.org |unassigned at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Not mine then.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] [4.9 Regression] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
` (2 preceding siblings ...)
2013-10-23 8:00 ` rguenth at gcc dot gnu.org
@ 2013-10-23 8:01 ` rguenth at gcc dot gnu.org
2013-10-25 21:37 ` vmakarov at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-23 8:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Target Milestone|--- |4.9.0
Summary|Runfail on CPU2006 |[4.9 Regression] Runfail on
|436.cactusADM with after |CPU2006 436.cactusADM with
|r203377 for core-avx2 |after r203377 for core-avx2
|target. |target.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] [4.9 Regression] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
` (3 preceding siblings ...)
2013-10-23 8:01 ` [Bug rtl-optimization/58826] [4.9 Regression] " rguenth at gcc dot gnu.org
@ 2013-10-25 21:37 ` vmakarov at gcc dot gnu.org
2013-11-19 10:24 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: vmakarov at gcc dot gnu.org @ 2013-10-25 21:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Yuri Rumyantsev from comment #2)
> In fact LRA is responsible for this failure - there is a bug in constant
> regeneration. LRA correctly regenerates all occurrences of virtual register
> which is not allocated(i.e. it does not has a register) but it must delete
> its spill/reload since this virtual register is dead.
Could you check a fix for PR58759 I included into the trunk recently.
Thanks.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] [4.9 Regression] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
` (4 preceding siblings ...)
2013-10-25 21:37 ` vmakarov at gcc dot gnu.org
@ 2013-11-19 10:24 ` rguenth at gcc dot gnu.org
2013-11-19 11:19 ` ysrumyan at gmail dot com
2013-11-21 14:32 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 10:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Waiting for reporter.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] [4.9 Regression] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
` (5 preceding siblings ...)
2013-11-19 10:24 ` rguenth at gcc dot gnu.org
@ 2013-11-19 11:19 ` ysrumyan at gmail dot com
2013-11-21 14:32 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: ysrumyan at gmail dot com @ 2013-11-19 11:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
--- Comment #6 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
I assume that this bug should be closed since it is not reproducible after the
latest LRA fix.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug rtl-optimization/58826] [4.9 Regression] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
` (6 preceding siblings ...)
2013-11-19 11:19 ` ysrumyan at gmail dot com
@ 2013-11-21 14:32 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-21 14:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed thus.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2013-10-21 13:25 [Bug rtl-optimization/58826] New: Runfail on CPU2006 436.cactusADM with after r203739 for core-avx2 target ysrumyan at gmail dot com
2013-10-21 14:24 ` [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 " rguenth at gcc dot gnu.org
2013-10-21 14:37 ` ysrumyan at gmail dot com
2013-10-23 8:00 ` rguenth at gcc dot gnu.org
2013-10-23 8:01 ` [Bug rtl-optimization/58826] [4.9 Regression] " rguenth at gcc dot gnu.org
2013-10-25 21:37 ` vmakarov at gcc dot gnu.org
2013-11-19 10:24 ` rguenth at gcc dot gnu.org
2013-11-19 11:19 ` ysrumyan at gmail dot com
2013-11-21 14:32 ` rguenth at gcc dot gnu.org
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