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* [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
@ 2005-08-17 16:33 bunk at stusta dot de
2005-08-17 16:34 ` [Bug c/23445] " bunk at stusta dot de
` (6 more replies)
0 siblings, 7 replies; 10+ messages in thread
From: bunk at stusta dot de @ 2005-08-17 16:33 UTC (permalink / raw)
To: gcc-bugs
I'm getting the ICE below when trying to compile the file fs/asfs/extents.c
Linux kernel 2.6.13-rc5-mm1 with a current CVS HEAD gcc.
As soon as I remove _one_ of the three options "-O1 -ftree-vrp
-fdelete-null-pointer-checks" the problem disappears.
<-- snip -->
...
$ /TMP/test/gcc/install/bin/gcc -m32 -Wp,-MD,fs/asfs/.extents.o.d -nostdinc
-isystem /TMP/test/gcc/install/lib/gcc/i686-pc-linux-gnu/4.1.0/include
-D__KERNEL__ -Iinclude -Iinclude/asm-i386/mach-default
-DKBUILD_BASENAME=extents -DKBUILD_MODNAME=asfs -c -o fs/asfs/extents.o
fs/asfs/extents.c -O1 -ftree-vrp -fdelete-null-pointer-checks
fs/asfs/extents.c: In function 'asfs_deletebnode':
fs/asfs/extents.c:325: internal compiler error: in compare_name_with_value, at
tree-vrp.c:2963
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
$
<-- snip -->
--
Summary: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-
pointer-checks
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bunk at stusta dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
@ 2005-08-17 16:34 ` bunk at stusta dot de
2005-08-17 16:39 ` bunk at stusta dot de
` (5 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: bunk at stusta dot de @ 2005-08-17 16:34 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bunk at stusta dot de 2005-08-17 16:33 -------
Created an attachment (id=9520)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9520&action=view)
preprocessed file
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
2005-08-17 16:34 ` [Bug c/23445] " bunk at stusta dot de
@ 2005-08-17 16:39 ` bunk at stusta dot de
2005-08-17 16:42 ` [Bug tree-optimization/23445] " pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: bunk at stusta dot de @ 2005-08-17 16:39 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to work| |4.0.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
2005-08-17 16:34 ` [Bug c/23445] " bunk at stusta dot de
2005-08-17 16:39 ` bunk at stusta dot de
@ 2005-08-17 16:42 ` pinskia at gcc dot gnu dot org
2005-08-17 16:47 ` pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-17 16:42 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c |tree-optimization
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
` (2 preceding siblings ...)
2005-08-17 16:42 ` [Bug tree-optimization/23445] " pinskia at gcc dot gnu dot org
@ 2005-08-17 16:47 ` pinskia at gcc dot gnu dot org
2005-08-17 18:02 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-17 16:47 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-17 16:42 -------
Reducing.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
` (3 preceding siblings ...)
2005-08-17 16:47 ` pinskia at gcc dot gnu dot org
@ 2005-08-17 18:02 ` pinskia at gcc dot gnu dot org
2005-08-23 5:44 ` phython at gcc dot gnu dot org
2005-09-19 17:44 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-17 18:02 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-17 17:58 -------
Confirmed, reduced testcase:
struct buffer_head {
char *b_data;
};
void asfs_deletebnode( struct buffer_head *bhsec) {
if (bhsec == 0) {
void *bnc2 = (void *) bhsec->b_data;
if (bnc2) return;
if (bhsec) __brelse(bhsec);
}
}
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |phython at gcc dot gnu dot
| |org, dnovillo at gcc dot gnu
| |dot org
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
GCC target triplet|i686-pc-linux-gnu |
Last reconfirmed|0000-00-00 00:00:00 |2005-08-17 17:58:50
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
` (4 preceding siblings ...)
2005-08-17 18:02 ` pinskia at gcc dot gnu dot org
@ 2005-08-23 5:44 ` phython at gcc dot gnu dot org
2005-09-19 17:44 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-08-23 5:44 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From phython at gcc dot gnu dot org 2005-08-23 05:31 -------
This is even better than the pass in pr16351 . Having the assert not fail on
pointer types is probably the best fix.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
` (5 preceding siblings ...)
2005-08-23 5:44 ` phython at gcc dot gnu dot org
@ 2005-09-19 17:44 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-09-19 17:44 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |23968
nThis| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
[not found] <bug-23445-9876@http.gcc.gnu.org/bugzilla/>
2005-10-04 3:02 ` cvs-commit at gcc dot gnu dot org
@ 2005-10-04 3:05 ` dnovillo at gcc dot gnu dot org
1 sibling, 0 replies; 10+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2005-10-04 3:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from dnovillo at gcc dot gnu dot org 2005-10-04 03:05 -------
Fixed. http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00117.html
--
dnovillo at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/23445] [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks
[not found] <bug-23445-9876@http.gcc.gnu.org/bugzilla/>
@ 2005-10-04 3:02 ` cvs-commit at gcc dot gnu dot org
2005-10-04 3:05 ` dnovillo at gcc dot gnu dot org
1 sibling, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-10-04 3:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from cvs-commit at gcc dot gnu dot org 2005-10-04 03:02 -------
Subject: Bug 23445
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: dnovillo@gcc.gnu.org 2005-10-04 03:02:20
Modified files:
gcc : ChangeLog tree-vrp.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/compile: pr23445.c
Log message:
PR 23445
* tree-vrp.c (extract_range_from_assert): If the new numeric
range created out of the assertion contradicts the existing
numeric range of the ASSERT_EXPR variable, make the new range
varying.
testsuite/
PR 23445
* gcc.c-torture/compile/pr23445.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.10072&r2=2.10073
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.61&r2=2.62
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.6129&r2=1.6130
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/pr23445.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23445
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2005-10-04 3:05 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-08-17 16:33 [Bug c/23445] New: [4.1 Regression] ICE with -O1 -ftree-vrp -fdelete-null-pointer-checks bunk at stusta dot de
2005-08-17 16:34 ` [Bug c/23445] " bunk at stusta dot de
2005-08-17 16:39 ` bunk at stusta dot de
2005-08-17 16:42 ` [Bug tree-optimization/23445] " pinskia at gcc dot gnu dot org
2005-08-17 16:47 ` pinskia at gcc dot gnu dot org
2005-08-17 18:02 ` pinskia at gcc dot gnu dot org
2005-08-23 5:44 ` phython at gcc dot gnu dot org
2005-09-19 17:44 ` pinskia at gcc dot gnu dot org
[not found] <bug-23445-9876@http.gcc.gnu.org/bugzilla/>
2005-10-04 3:02 ` cvs-commit at gcc dot gnu dot org
2005-10-04 3:05 ` dnovillo at gcc dot gnu dot org
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