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* [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579
@ 2010-04-06 3:21 regehr at cs dot utah dot edu
2010-04-06 8:02 ` [Bug c/43661] [4.5 Regression] " jakub at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: regehr at cs dot utah dot edu @ 2010-04-06 3:21 UTC (permalink / raw)
To: gcc-bugs
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regehr@john-home:~/volatile/bugs/tmp310$ current-gcc -Os small.c -c
small.c: In function func:
small.c:10:6: internal compiler error: in fold_comparison, at fold-const.c:9579
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
regehr@john-home:~/volatile/bugs/tmp310$ cat small.c
void
func (int *p_51)
{
int l_174 = 0;
l_174 |=
0 ? (unsigned short) (0 ? : 1 *
(signed char) (*p_51
^
*p_51)
>= 0) : *p_51 < *p_51 > *p_51 < 1;
}
regehr@john-home:~/volatile/bugs/tmp310$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r157975-install/libexec/gcc/i686-pc-linux-gnu/4.5.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r157975-install
--program-prefix=r157975- --enable-languages=c,c++
Thread model: posix
gcc version 4.5.0 20100406 (experimental) (GCC)
--
Summary: ice in fold_comparison, at fold-const.c:9579
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: regehr at cs dot utah dot edu
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/43661] [4.5 Regression] ice in fold_comparison, at fold-const.c:9579
2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
@ 2010-04-06 8:02 ` jakub at gcc dot gnu dot org
2010-04-06 9:01 ` rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-04-06 8:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2010-04-06 08:02 -------
Caused by r145254. Shorter testcase:
int
func (int x)
{
return 0 ? (unsigned short) (0 ? : 1 * (signed char) (x ^ x) >= 0) : 1;
}
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ice in fold_comparison, at |[4.5 Regression] ice in
|fold-const.c:9579 |fold_comparison, at fold-
| |const.c:9579
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/43661] [4.5 Regression] ice in fold_comparison, at fold-const.c:9579
2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
2010-04-06 8:02 ` [Bug c/43661] [4.5 Regression] " jakub at gcc dot gnu dot org
@ 2010-04-06 9:01 ` rguenth at gcc dot gnu dot org
2010-04-06 9:11 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-04-06 9:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-04-06 09:00 -------
These kind of asserts are really bogus ...
Well. We have an unfolded tree.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-04-06 09:00:32
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/43661] [4.5 Regression] ice in fold_comparison, at fold-const.c:9579
2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
2010-04-06 8:02 ` [Bug c/43661] [4.5 Regression] " jakub at gcc dot gnu dot org
2010-04-06 9:01 ` rguenth at gcc dot gnu dot org
@ 2010-04-06 9:11 ` rguenth at gcc dot gnu dot org
2010-04-06 10:37 ` rguenth at gcc dot gnu dot org
2010-04-06 10:47 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-04-06 9:11 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-04-06 09:10 -------
I have a fix for the ICE.
--
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|NEW |ASSIGNED
Last reconfirmed|2010-04-06 09:00:32 |2010-04-06 09:10:53
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/43661] [4.5 Regression] ice in fold_comparison, at fold-const.c:9579
2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
` (2 preceding siblings ...)
2010-04-06 9:11 ` rguenth at gcc dot gnu dot org
@ 2010-04-06 10:37 ` rguenth at gcc dot gnu dot org
2010-04-06 10:47 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-04-06 10:37 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-04-06 10:37 -------
Subject: Bug 43661
Author: rguenth
Date: Tue Apr 6 10:36:57 2010
New Revision: 157984
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157984
Log:
2010-04-06 Richard Guenther <rguenther@suse.de>
PR middle-end/43661
* fold-const.c (fold_comparison): Handle X * 0 CMP 0.
* gcc.c-torture/compile/pr43661.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr43661.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/43661] [4.5 Regression] ice in fold_comparison, at fold-const.c:9579
2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
` (3 preceding siblings ...)
2010-04-06 10:37 ` rguenth at gcc dot gnu dot org
@ 2010-04-06 10:47 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-04-06 10:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2010-04-06 10:47 -------
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=43661
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-04-06 10:47 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2010-04-06 3:21 [Bug c/43661] New: ice in fold_comparison, at fold-const.c:9579 regehr at cs dot utah dot edu
2010-04-06 8:02 ` [Bug c/43661] [4.5 Regression] " jakub at gcc dot gnu dot org
2010-04-06 9:01 ` rguenth at gcc dot gnu dot org
2010-04-06 9:11 ` rguenth at gcc dot gnu dot org
2010-04-06 10:37 ` rguenth at gcc dot gnu dot org
2010-04-06 10:47 ` rguenth at gcc dot gnu dot org
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