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* [Bug c/21331] New: Incorrect folding of comparison
@ 2005-05-02 10:06 tege-gcc at swox dot com
2005-05-02 11:41 ` [Bug middle-end/21331] [4.0 Regression] " pinskia at gcc dot gnu dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: tege-gcc at swox dot com @ 2005-05-02 10:06 UTC (permalink / raw)
To: gcc-bugs
On ia64: gcc -O ~/bug.c
On powerpc: gcc -O -m64 ~/bug.c
The test case hits abort.
(This case came up when trying to compile GNU MP with gcc 4.
I have yet to find a platform where gcc 4 works properly.)
This is bug.c:
#include <stdlib.h>
int bar (void)
{ return -1; }
unsigned long
foo ()
{ unsigned long retval;
retval = bar ();
if (retval == -1) return 0;
return 3; }
main ()
{ if (foo () != 0) abort ();
return 0; }
--
Summary: Incorrect folding of comparison
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tege-gcc at swox dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: ia64-redhat-linux, powerpc-apple-darwin8
GCC host triplet: ia64-redhat-linux, powerpc-apple-darwin8
GCC target triplet: ia64-redhat-linux, powerpc-apple-darwin8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
@ 2005-05-02 11:41 ` pinskia at gcc dot gnu dot org
2005-05-16 0:28 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-02 11:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-02 11:40 -------
Confirmed, another bug (PR 21293 is the other) fixed on the mainline by:
2005-03-14 Zdenek Dvorak <dvorakz@suse.cz>
* tree-cfg.c (find_taken_edge_cond_expr): Use zero_p instead of
integer_zerop.
* tree-gimple.c (is_gimple_min_invariant): Consider overflowed
constants invariant.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
BugsThisDependsOn| |21293
Status|UNCONFIRMED |NEW
Component|c |middle-end
Ever Confirmed| |1
GCC build triplet|ia64-redhat-linux, powerpc- |
|apple-darwin8 |
GCC host triplet|ia64-redhat-linux, powerpc- |
|apple-darwin8 |
GCC target triplet|ia64-redhat-linux, powerpc- |any 64bit target
|apple-darwin8 |
Keywords| |wrong-code
Known to fail| |4.0.0
Known to work| |3.4.3 4.1.0
Last reconfirmed|0000-00-00 00:00:00 |2005-05-02 11:40:53
date| |
Summary|Incorrect folding of |[4.0 Regression] Incorrect
|comparison |folding of comparison
Target Milestone|--- |4.0.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
2005-05-02 11:41 ` [Bug middle-end/21331] [4.0 Regression] " pinskia at gcc dot gnu dot org
@ 2005-05-16 0:28 ` pinskia at gcc dot gnu dot org
2005-05-21 16:57 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-16 0:28 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-16 00:28 -------
Mine, patch posted.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pinskia at gcc dot gnu dot
|dot org |org
URL| |http://gcc.gnu.org/ml/gcc-
| |patches/2005-
| |05/msg01485.html
Status|NEW |ASSIGNED
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
2005-05-02 11:41 ` [Bug middle-end/21331] [4.0 Regression] " pinskia at gcc dot gnu dot org
2005-05-16 0:28 ` pinskia at gcc dot gnu dot org
@ 2005-05-21 16:57 ` cvs-commit at gcc dot gnu dot org
2005-05-21 16:58 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-05-21 16:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-21 16:57 -------
Subject: Bug 21331
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: pinskia@gcc.gnu.org 2005-05-21 16:57:25
Modified files:
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/compile: pr21293.c
gcc/testsuite/gcc.c-torture/execute: pr21331.c
Log message:
2004-05-21 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/21331
PR tree-opt/21293
* gcc.c-torture/compile/pr21293.c: New test.
* gcc.c-torture/execute/pr21331.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5504&r2=1.5505
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/pr21293.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr21331.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
` (2 preceding siblings ...)
2005-05-21 16:57 ` cvs-commit at gcc dot gnu dot org
@ 2005-05-21 16:58 ` pinskia at gcc dot gnu dot org
2005-05-21 16:59 ` pinskia at gcc dot gnu dot org
2005-05-21 16:59 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-21 16:58 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-21 16:58 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
` (3 preceding siblings ...)
2005-05-21 16:58 ` pinskia at gcc dot gnu dot org
@ 2005-05-21 16:59 ` pinskia at gcc dot gnu dot org
2005-05-21 16:59 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-21 16:59 UTC (permalink / raw)
To: gcc-bugs
--
Bug 21331 depends on bug 21293, which changed state.
Bug 21293 Summary: [4.0 Regression] ICE in set_value_handle
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21293
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/21331] [4.0 Regression] Incorrect folding of comparison
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
` (4 preceding siblings ...)
2005-05-21 16:59 ` pinskia at gcc dot gnu dot org
@ 2005-05-21 16:59 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-05-21 16:59 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-21 16:59 -------
Subject: Bug 21331
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: pinskia@gcc.gnu.org 2005-05-21 16:58:46
Modified files:
gcc : ChangeLog tree-cfg.c tree-gimple.c
gcc/fortran : ChangeLog trans-intrinsic.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/compile: pr21293.c
gcc/testsuite/gcc.c-torture/execute: pr21331.c
Log message:
2005-05-21 Andrew Pinski
Backport from the mainline:
2005-03-14 Zdenek Dvorak <dvorakz@suse.cz>
* fortran/trans-intrinsic.c (gfc_conv_intrinsic_ishft): Convert
the argument of the shift to the unsigned type.
2005-05-21 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/21331
PR tree-opt/21293
Backport from the mainline:
2005-03-14 Zdenek Dvorak <dvorakz@suse.cz>
* tree-cfg.c (find_taken_edge_cond_expr): Use zero_p instead of
integer_zerop.
* tree-gimple.c (is_gimple_min_invariant): Consider overflowed
constants invariant.
2004-05-21 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/21331
PR tree-opt/21293
* gcc.c-torture/compile/pr21293.c: New test.
* gcc.c-torture/execute/pr21331.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.256&r2=2.7592.2.257
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.151&r2=2.151.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-gimple.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.35&r2=2.35.12.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.335.2.53&r2=1.335.2.54
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/trans-intrinsic.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.43.10.4&r2=1.43.10.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.191&r2=1.5084.2.192
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/pr21293.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr21331.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21331
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2005-05-21 16:59 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-05-02 10:06 [Bug c/21331] New: Incorrect folding of comparison tege-gcc at swox dot com
2005-05-02 11:41 ` [Bug middle-end/21331] [4.0 Regression] " pinskia at gcc dot gnu dot org
2005-05-16 0:28 ` pinskia at gcc dot gnu dot org
2005-05-21 16:57 ` cvs-commit at gcc dot gnu dot org
2005-05-21 16:58 ` pinskia at gcc dot gnu dot org
2005-05-21 16:59 ` pinskia at gcc dot gnu dot org
2005-05-21 16:59 ` cvs-commit at gcc dot gnu dot org
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