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* [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
@ 2005-04-04 11:38 jakub at gcc dot gnu dot org
2005-04-04 11:38 ` [Bug tree-optimization/20742] " jakub at gcc dot gnu dot org
` (12 more replies)
0 siblings, 13 replies; 14+ messages in thread
From: jakub at gcc dot gnu dot org @ 2005-04-04 11:38 UTC (permalink / raw)
To: gcc-bugs
The following testcase (simplified from lmbench) causes major compile time
regression in tree_ssa_iv_optimize_loop.
Without -DHANG (and with -O2), HEAD gcc needs 0m34.176s, while with GCC 3.4.x
0m0.035s. On 4.0 branch it even takes substantially longer.
lmbench has 100 such lines, which would take longer than anybody could wait.
--
Summary: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org,rakdver at gcc dot gnu
dot org,sebastian dot pop at cri dot ensmp dot fr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
@ 2005-04-04 11:38 ` jakub at gcc dot gnu dot org
2005-04-04 11:41 ` jakub at gcc dot gnu dot org
` (11 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu dot org @ 2005-04-04 11:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From jakub at gcc dot gnu dot org 2005-04-04 11:38 -------
Created an attachment (id=8526)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8526&action=view)
Testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
2005-04-04 11:38 ` [Bug tree-optimization/20742] " jakub at gcc dot gnu dot org
@ 2005-04-04 11:41 ` jakub at gcc dot gnu dot org
2005-04-04 13:02 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu dot org @ 2005-04-04 11:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From jakub at gcc dot gnu dot org 2005-04-04 11:40 -------
Oops, attached older version of the testcase. The latest one had:
#ifdef HANG
#define TEN(x) x x x x x x x x x x
TEN (TEN (a += b; b -= a;))
#endif
in the loop as well.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
2005-04-04 11:38 ` [Bug tree-optimization/20742] " jakub at gcc dot gnu dot org
2005-04-04 11:41 ` jakub at gcc dot gnu dot org
@ 2005-04-04 13:02 ` pinskia at gcc dot gnu dot org
2005-04-04 14:03 ` rakdver at gcc dot gnu dot org
` (9 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-04 13:02 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
Keywords| |compile-time-hog
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2005-04-04 13:02 ` pinskia at gcc dot gnu dot org
@ 2005-04-04 14:03 ` rakdver at gcc dot gnu dot org
2005-04-04 14:51 ` sebastian dot pop at cri dot ensmp dot fr
` (8 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-04-04 14:03 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-04-04 14:03 -------
This is scev analysis problem. On this testcase, it produces exponentially
large expressions (of form a_5 + b_6 + b_6 - a_5 + b_6 + b_6 - a_5 + b_6 - a_5 ...).
As for possible solutions: more clever folding that would transform this to
c1 * a_5 + c2 * b_6 would help in this particular case, but the possibility that
an exponentially large expression that will not be possible to fold will be produced
by scev would still exist.
Scev probably should keep track of how large expressions it produces, and just give
up if it grows beyond some limit.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-04-04 14:03 ` rakdver at gcc dot gnu dot org
@ 2005-04-04 14:51 ` sebastian dot pop at cri dot ensmp dot fr
2005-04-05 1:36 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: sebastian dot pop at cri dot ensmp dot fr @ 2005-04-04 14:51 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From sebastian dot pop at cri dot ensmp dot fr 2005-04-04 14:50 -------
Subject: Re: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
rakdver at gcc dot gnu dot org wrote:
>
> Scev probably should keep track of how large expressions it produces, and just give
> up if it grows beyond some limit.
>
Okay. What about putting this limit in chrec_fold_plus_1 and
chrec_fold_multiply? I think that this will minimize the size of the
patch for fixing this problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (4 preceding siblings ...)
2005-04-04 14:51 ` sebastian dot pop at cri dot ensmp dot fr
@ 2005-04-05 1:36 ` pinskia at gcc dot gnu dot org
2005-04-07 6:21 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-05 1:36 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-04-05 01:36:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (5 preceding siblings ...)
2005-04-05 1:36 ` pinskia at gcc dot gnu dot org
@ 2005-04-07 6:21 ` pinskia at gcc dot gnu dot org
2005-04-21 5:04 ` mmitchel at gcc dot gnu dot org
` (5 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-07 6:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-07 06:21 -------
*** Bug 20803 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |dalej at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (6 preceding siblings ...)
2005-04-07 6:21 ` pinskia at gcc dot gnu dot org
@ 2005-04-21 5:04 ` mmitchel at gcc dot gnu dot org
2005-04-21 20:57 ` [Bug tree-optimization/20742] [4.0 " cvs-commit at gcc dot gnu dot org
` (4 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2005-04-21 5:04 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.0.0 |4.0.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (7 preceding siblings ...)
2005-04-21 5:04 ` mmitchel at gcc dot gnu dot org
@ 2005-04-21 20:57 ` cvs-commit at gcc dot gnu dot org
2005-05-03 23:05 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-04-21 20:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-04-21 20:57 -------
Subject: Bug 20742
CVSROOT: /cvs/gcc
Module name: gcc
Branch: apple-local-200502-branch
Changes by: dalej@gcc.gnu.org 2005-04-21 20:57:24
Modified files:
gcc : ChangeLog params.def tree-chrec.c tree-chrec.h
tree-scalar-evolution.c
gcc/doc : invoke.texi
Log message:
2005-04-20 Dale Johannesen <dalej@apple.com>
Radar 4080945
PR 20742
* params.def (PARAM_SCEV_MAX_EXPR_SIZE): New.
* tree-chrec.c (params.h): New include.
(chrec_fold_plus_1): Avoid too deep recursion.
(reset_evolution_in_loop): Use build2 not build.
(tree_contains_chrecs): Add size argument.
* tree-chrec.h (tree_constains_chrecs): Add size argument.
(tree_does_not_contain_chrecs): Adjust call to it.
* tree-scalar-evolution.c (simple_iv): Ditto.
* doc/invoke.texi (scev-max-expr-size): Document.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=2.7489.2.7&r2=2.7489.2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.def.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=1.54.4.2&r2=1.54.4.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=2.12.8.2&r2=2.12.8.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.h.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=2.6&r2=2.6.10.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=2.16.6.1&r2=2.16.6.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&only_with_tag=apple-local-200502-branch&r1=1.579.2.4&r2=1.579.2.5
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (8 preceding siblings ...)
2005-04-21 20:57 ` [Bug tree-optimization/20742] [4.0 " cvs-commit at gcc dot gnu dot org
@ 2005-05-03 23:05 ` cvs-commit at gcc dot gnu dot org
2005-06-06 12:13 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-05-03 23:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-03 23:05 -------
Subject: Bug 20742
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-rhl-branch
Changes by: jakub@gcc.gnu.org 2005-05-03 23:05:32
Modified files:
gcc : ChangeLog Makefile.in params.def tree-chrec.c
tree-chrec.h tree-scalar-evolution.c
gcc/doc : invoke.texi
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/compile: 20050423-1.c
Log message:
2005-05-04 Sebastian Pop <sebastian.pop@cri.ensmp.fr>
PR tree-optimization/20742
* Makefile.in (tree-chrec.o): Depend on params.h.
* params.def (PARAM_SCEV_MAX_EXPR_SIZE): New parameter with
default value 20.
* tree-chrec.c: Depend on params.h. Replace build with buildN.
(chrec_fold_plus_1): Fail with a chrec_don_know when the size of
the expression exceeds PARAM_SCEV_MAX_EXPR_SIZE.
(tree_contains_chrecs): Compute an estimation of the size of the
given expression.
* tree-chrec.h (tree_contains_chrecs): Modify its declaration.
(tree_does_not_contain_chrecs): Update the use of tree_contains_chrecs.
* tree-scalar-evolution.c (simple_iv): Ditto.
* doc/invoke.texi (scev-max-expr-size): Documented.
2005-05-04 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/20742
* gcc.c-torture/compile/20050423-1.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=2.7592.2.10.2.27&r2=2.7592.2.10.2.28
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=1.1447.4.4&r2=1.1447.4.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.def.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=1.54.8.1&r2=1.54.8.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=2.12.14.2&r2=2.12.14.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.h.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=2.6&r2=2.6.16.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=2.17.6.1&r2=2.17.6.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=1.583.2.1.2.10&r2=1.583.2.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=1.5084.2.9.2.22&r2=1.5084.2.9.2.23
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20050423-1.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-rhl-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (9 preceding siblings ...)
2005-05-03 23:05 ` cvs-commit at gcc dot gnu dot org
@ 2005-06-06 12:13 ` cvs-commit at gcc dot gnu dot org
2005-06-06 12:59 ` pinskia at gcc dot gnu dot org
2005-06-07 19:54 ` cvs-commit at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-06-06 12:13 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-06 12:13 -------
Subject: Bug 20742
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: spop@gcc.gnu.org 2005-06-06 12:12:53
Modified files:
gcc : ChangeLog params.def tree-chrec.c tree-chrec.h
tree-scalar-evolution.c
gcc/doc : invoke.texi
Log message:
PR tree-optimization/20742
* params.def (PARAM_SCEV_MAX_EXPR_SIZE): New parameter with
default value 20.
* tree-chrec.c: Depend on params.h. Replace build with buildN,
and fold build with fold_buildN.
(chrec_fold_plus_1): Fail with a chrec_don_know when the size of
the expression exceeds PARAM_SCEV_MAX_EXPR_SIZE.
(tree_contains_chrecs): Compute an estimation of the size of the
given expression.
* tree-chrec.h (tree_contains_chrecs): Modify its declaration.
(tree_does_not_contain_chrecs): Update the use of tree_contains_chrecs.
* tree-scalar-evolution.c (simple_iv): Ditto.
* doc/invoke.texi (scev-max-expr-size): Documented.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.279&r2=2.7592.2.280
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.def.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.54.6.1&r2=1.54.6.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.12.12.2&r2=2.12.12.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.h.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.6&r2=2.6.14.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.17.4.1&r2=2.17.4.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.583.2.18&r2=1.583.2.19
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (10 preceding siblings ...)
2005-06-06 12:13 ` cvs-commit at gcc dot gnu dot org
@ 2005-06-06 12:59 ` pinskia at gcc dot gnu dot org
2005-06-07 19:54 ` cvs-commit at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-06 12:59 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-06 12:59 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug tree-optimization/20742] [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
` (11 preceding siblings ...)
2005-06-06 12:59 ` pinskia at gcc dot gnu dot org
@ 2005-06-07 19:54 ` cvs-commit at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-06-07 19:54 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-07 19:54 -------
Subject: Bug 20742
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: spop@gcc.gnu.org 2005-06-07 19:54:23
Added files:
gcc/testsuite/gcc.c-torture/compile: 20050423-1.c
Log message:
* 20050423-1.c: Testcase for PR tree-optimization/20742.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20050423-1.c.diff?cvsroot=gcc&r1=1.1&r2=1.2
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742
^ permalink raw reply [flat|nested] 14+ messages in thread
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2005-04-04 11:38 [Bug tree-optimization/20742] New: [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop jakub at gcc dot gnu dot org
2005-04-04 11:38 ` [Bug tree-optimization/20742] " jakub at gcc dot gnu dot org
2005-04-04 11:41 ` jakub at gcc dot gnu dot org
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2005-04-04 14:51 ` sebastian dot pop at cri dot ensmp dot fr
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2005-04-21 5:04 ` mmitchel at gcc dot gnu dot org
2005-04-21 20:57 ` [Bug tree-optimization/20742] [4.0 " cvs-commit at gcc dot gnu dot org
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This is a public inbox, see mirroring instructions
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as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).