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* [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
@ 2010-12-10 19:21 ` jakub at gcc dot gnu.org
2010-12-10 19:25 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-12-10 19:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
Known to work| |
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-10 19:21:02 UTC ---
The problem is that since 4.5, the:
/* There must be no VDEFs. */
if (gimple_vdef (stmt))
return false;
/* Without alias info we can't move around loads. */
if (gimple_references_memory_p (stmt) && !optimize)
return false;
never return false if !optimize (in 4.4 gimple_references_memory_p was just
checking a bit in gimple stmt).
We know at this point that is_gimple_assign (stmt), what's the best way to
replace the latter check to rule out all memory loads and stores if !optimize?
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
2010-12-10 19:21 ` [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test jakub at gcc dot gnu.org
@ 2010-12-10 19:25 ` jakub at gcc dot gnu.org
2010-12-16 13:27 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-12-10 19:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2010.12.10 19:25:42
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-10 19:25:42 UTC ---
Created attachment 22708
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22708
gcc46-pr43655.patch
Untested fix.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
2010-12-10 19:21 ` [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test jakub at gcc dot gnu.org
2010-12-10 19:25 ` jakub at gcc dot gnu.org
@ 2010-12-16 13:27 ` rguenth at gcc dot gnu.org
2010-12-16 21:44 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2010-12-16 13:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.5.2 |4.5.3
--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-16 13:03:46 UTC ---
GCC 4.5.2 is being released, adjusting target milestone.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2010-12-16 13:27 ` rguenth at gcc dot gnu.org
@ 2010-12-16 21:44 ` jakub at gcc dot gnu.org
2010-12-16 21:58 ` [Bug tree-optimization/43655] [4.5 " jakub at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-12-16 21:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-16 21:44:05 UTC ---
Author: jakub
Date: Thu Dec 16 21:44:02 2010
New Revision: 167955
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167955
Log:
PR tree-optimization/43655
* tree-ssa-ter.c (is_replaceable_p): Don't use
gimple_references_memory_p for -O0, instead check for load
by looking at rhs.
* g++.dg/opt/pr43655.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr43655.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-ter.c
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2010-12-16 21:44 ` jakub at gcc dot gnu.org
@ 2010-12-16 21:58 ` jakub at gcc dot gnu.org
2011-01-16 20:27 ` jakub at gcc dot gnu.org
2011-01-17 8:26 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-12-16 21:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.6.0
Summary|[4.5/4.6 Regression] |[4.5 Regression] -ftree-ter
|-ftree-ter causes FAIL: |causes FAIL:
|g++.old-deja/g++.law/temps5 |g++.old-deja/g++.law/temps5
|.C execution test |.C execution test
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-16 21:58:25 UTC ---
Fixed on the trunk so far.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2010-12-16 21:58 ` [Bug tree-optimization/43655] [4.5 " jakub at gcc dot gnu.org
@ 2011-01-16 20:27 ` jakub at gcc dot gnu.org
2011-01-17 8:26 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-01-16 20:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-16 20:21:44 UTC ---
Author: jakub
Date: Sun Jan 16 20:21:42 2011
New Revision: 168866
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168866
Log:
Backport from mainline
2010-12-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/43655
* tree-ssa-ter.c (is_replaceable_p): Don't use
gimple_references_memory_p for -O0, instead check for load
by looking at rhs.
* g++.dg/opt/pr43655.C: New test.
Added:
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/opt/pr43655.C
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
branches/gcc-4_5-branch/gcc/tree-ssa-ter.c
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug tree-optimization/43655] [4.5 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
` (5 preceding siblings ...)
2011-01-16 20:27 ` jakub at gcc dot gnu.org
@ 2011-01-17 8:26 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-01-17 8:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-17 08:06:36 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/43655] New: [4.5 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test
@ 2010-04-05 21:21 zsojka at seznam dot cz
2010-04-05 21:24 ` [Bug tree-optimization/43655] " zsojka at seznam dot cz
` (3 more replies)
0 siblings, 4 replies; 11+ messages in thread
From: zsojka at seznam dot cz @ 2010-04-05 21:21 UTC (permalink / raw)
To: gcc-bugs
Command line:
g++ -ftree-ter temps5.C && ./a.out
Tested revisions:
r157965 - fail
r153685 - fail
4.4 r157895 - OK
4.4.3, 4.3.4, 4.2.4, 4.1.2 - OK
Compiler output:
$ /mnt/svn/gcc-trunk/binary-157965-lto/bin/g++ -ftree-ter temps5.C && ./a.out
FAIL
--
Summary: [4.5 Regression] -ftree-ter causes FAIL: g++.old-
deja/g++.law/temps5.C execution test
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zsojka at seznam dot cz
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
^ permalink raw reply [flat|nested] 11+ messages in thread
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[not found] <bug-43655-4@http.gcc.gnu.org/bugzilla/>
2010-12-10 19:21 ` [Bug tree-optimization/43655] [4.5/4.6 Regression] -ftree-ter causes FAIL: g++.old-deja/g++.law/temps5.C execution test jakub at gcc dot gnu.org
2010-12-10 19:25 ` jakub at gcc dot gnu.org
2010-12-16 13:27 ` rguenth at gcc dot gnu.org
2010-12-16 21:44 ` jakub at gcc dot gnu.org
2010-12-16 21:58 ` [Bug tree-optimization/43655] [4.5 " jakub at gcc dot gnu.org
2011-01-16 20:27 ` jakub at gcc dot gnu.org
2011-01-17 8:26 ` jakub at gcc dot gnu.org
2010-04-05 21:21 [Bug tree-optimization/43655] New: " zsojka at seznam dot cz
2010-04-05 21:24 ` [Bug tree-optimization/43655] " zsojka at seznam dot cz
2010-04-06 8:55 ` rguenth at gcc dot gnu dot org
2010-04-06 9:27 ` rguenth at gcc dot gnu dot org
2010-04-06 11:38 ` rguenth at gcc dot gnu dot org
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