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* [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities
@ 2007-07-02 13:33 rguenth at gcc dot gnu dot org
2007-07-02 13:33 ` [Bug tree-optimization/32586] " rguenth at gcc dot gnu dot org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-07-02 13:33 UTC (permalink / raw)
To: gcc-bugs
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-4.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-5.c
are now all xfailed after r126149.
--
Summary: [4.3 Regression] New VN misses FRE opportunities
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
@ 2007-07-02 13:33 ` rguenth at gcc dot gnu dot org
2007-08-10 0:34 ` mmitchel at gcc dot gnu dot org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-07-02 13:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2007-07-02 13:33 -------
I'm going to look at bringing back the tree-combining the previous FRE did.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-07-02 13:33:41
date| |
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
2007-07-02 13:33 ` [Bug tree-optimization/32586] " rguenth at gcc dot gnu dot org
@ 2007-08-10 0:34 ` mmitchel at gcc dot gnu dot org
2007-09-05 11:26 ` rguenth at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-08-10 0:34 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
2007-07-02 13:33 ` [Bug tree-optimization/32586] " rguenth at gcc dot gnu dot org
2007-08-10 0:34 ` mmitchel at gcc dot gnu dot org
@ 2007-09-05 11:26 ` rguenth at gcc dot gnu dot org
2007-09-06 16:05 ` rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-05 11:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2007-09-05 11:26 -------
*** Bug 32845 has been marked as a duplicate of this bug. ***
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl at lucon dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-09-05 11:26 ` rguenth at gcc dot gnu dot org
@ 2007-09-06 16:05 ` rguenth at gcc dot gnu dot org
2007-09-06 16:06 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-06 16:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2007-09-06 16:05 -------
Subject: Bug 32586
Author: rguenth
Date: Thu Sep 6 16:05:32 2007
New Revision: 128189
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128189
Log:
2007-09-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/32586
* tree-ssa-sccvn.c (simplify_binary_expression): Avoid
folding if nothing changed.
(simplify_unary_expression): New function. Do tree combining
on conversion like codes.
(try_to_simplify): Call it.
* builtins.c (fold_builtin_cexp): Fold the built expressions.
* fold-const.c (fold_unary): Test result of get_callee_fndecl().
* g++.dg/tree-ssa/pr27090.C: Remove XFAILs.
* gcc.dg/tree-ssa/ssa-fre-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-4.c: Likewise, remove scan for
now obsolete simplification.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/tree-ssa/pr27090.C
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-4.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-5.c
trunk/gcc/tree-ssa-sccvn.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (3 preceding siblings ...)
2007-09-06 16:05 ` rguenth at gcc dot gnu dot org
@ 2007-09-06 16:06 ` rguenth at gcc dot gnu dot org
2007-09-07 10:31 ` rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-06 16:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2007-09-06 16:06 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (4 preceding siblings ...)
2007-09-06 16:06 ` rguenth at gcc dot gnu dot org
@ 2007-09-07 10:31 ` rguenth at gcc dot gnu dot org
2007-09-07 10:32 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-07 10:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2007-09-07 10:31 -------
Subject: Bug 32586
Author: rguenth
Date: Fri Sep 7 10:31:09 2007
New Revision: 128236
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128236
Log:
2007-09-07 Richard Guenther <rguenther@suse.de>
Revert
2007-09-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/32586
* tree-ssa-sccvn.c (simplify_binary_expression): Avoid
folding if nothing changed.
(simplify_unary_expression): New function. Do tree combining
on conversion like codes.
(try_to_simplify): Call it.
* g++.dg/tree-ssa/pr27090.C: Remove XFAILs.
* gcc.dg/tree-ssa/ssa-fre-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-4.c: Likewise, remove scan for
now obsolete simplification.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/tree-ssa/pr27090.C
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-4.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-5.c
trunk/gcc/tree-ssa-sccvn.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (5 preceding siblings ...)
2007-09-07 10:31 ` rguenth at gcc dot gnu dot org
@ 2007-09-07 10:32 ` rguenth at gcc dot gnu dot org
2007-09-07 18:55 ` rguenth at gcc dot gnu dot org
2007-09-07 18:56 ` rguenth at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-07 10:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2007-09-07 10:32 -------
Caused bootstrap miscompare on i?86.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (6 preceding siblings ...)
2007-09-07 10:32 ` rguenth at gcc dot gnu dot org
@ 2007-09-07 18:55 ` rguenth at gcc dot gnu dot org
2007-09-07 18:56 ` rguenth at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-07 18:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from rguenth at gcc dot gnu dot org 2007-09-07 18:55 -------
Subject: Bug 32586
Author: rguenth
Date: Fri Sep 7 18:55:15 2007
New Revision: 128251
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128251
Log:
2007-09-07 Richard Guenther <rguenther@suse.de>
PR tree-optimization/32586
* tree-ssa-sccvn.c (simplify_binary_expression): Avoid
folding if nothing changed.
(simplify_unary_expression): New function. Do tree combining
on conversion like codes.
(try_to_simplify): Call it.
* g++.dg/tree-ssa/pr27090.C: Remove XFAILs.
* gcc.dg/tree-ssa/ssa-fre-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-4.c: Likewise, remove scan for
now obsolete simplification.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/tree-ssa/pr27090.C
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-4.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-5.c
trunk/gcc/tree-ssa-sccvn.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/32586] [4.3 Regression] New VN misses FRE opportunities
2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
` (7 preceding siblings ...)
2007-09-07 18:55 ` rguenth at gcc dot gnu dot org
@ 2007-09-07 18:56 ` rguenth at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-09-07 18:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from rguenth at gcc dot gnu dot org 2007-09-07 18:55 -------
Fixed again.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32586
^ permalink raw reply [flat|nested] 10+ messages in thread
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2007-07-02 13:33 [Bug tree-optimization/32586] New: [4.3 Regression] New VN misses FRE opportunities rguenth at gcc dot gnu dot org
2007-07-02 13:33 ` [Bug tree-optimization/32586] " rguenth at gcc dot gnu dot org
2007-08-10 0:34 ` mmitchel at gcc dot gnu dot org
2007-09-05 11:26 ` rguenth at gcc dot gnu dot org
2007-09-06 16:05 ` rguenth at gcc dot gnu dot org
2007-09-06 16:06 ` rguenth at gcc dot gnu dot org
2007-09-07 10:31 ` rguenth at gcc dot gnu dot org
2007-09-07 10:32 ` rguenth at gcc dot gnu dot org
2007-09-07 18:55 ` rguenth at gcc dot gnu dot org
2007-09-07 18:56 ` rguenth at gcc dot gnu dot org
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