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* [Bug tree-optimization/22516] New: Segfault with ivopts at -O
@ 2005-07-17 0:28 falk at debian dot org
2005-07-17 9:51 ` [Bug tree-optimization/22516] [4.1 Regression] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: falk at debian dot org @ 2005-07-17 0:28 UTC (permalink / raw)
To: gcc-bugs
GNU C version 4.1.0 20050716 (experimental) (alphaev68-unknown-linux-gnu)
falk@juist:/tmp% cat bug.c
void g(int x);
void f(int y2) {
int y1 = 0, dy = y2;
short sy = y2;
for (;;) {
g(y1);
while (dy) {
y1 += sy;
dy += y2;
}
}
}
falk@juist:/tmp% gcc -c -O2 -W -Wall bug.c
falk@juist:/tmp% gcc -c -O -W -Wall bug.c -fno-ivopts
falk@juist:/tmp% gcc -c -O -W -Wall bug.c
bug.c: In function 'f':
bug.c:2: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: Segfault with ivopts at -O
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: falk at debian dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: alphaev68-unknown-linux-gnu
GCC host triplet: alphaev68-unknown-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22516
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/22516] [4.1 Regression] Segfault with ivopts at -O
2005-07-17 0:28 [Bug tree-optimization/22516] New: Segfault with ivopts at -O falk at debian dot org
@ 2005-07-17 9:51 ` pinskia at gcc dot gnu dot org
2005-07-18 9:46 ` rakdver at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-17 9:51 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-17 08:09 -------
Confirmed, backtrace:
#0 0x0010c034 in is_gimple_variable (t=0x0) at ../../gcc/tree-gimple.c:239
#1 0x0010c70c in is_gimple_val (t=0x0) at ../../gcc/tree-gimple.c:366
#2 0x0012bd94 in force_gimple_operand (expr=0x0, stmts=0xbffff528, simple=0 '\0',
var=0x174d840) at ../../gcc/gimplify.c:4845
#3 0x001f1334 in rewrite_use_nonlinear_expr (data=0xbffff6f0, use=0x2105550, cand=0x2105830)
at ../../gcc/tree-ssa-loop-ivopts.c:5365
#4 0x001f2dc8 in rewrite_use (data=0xbffff6f0, use=0x2105550, cand=0x2105830) at ../../gcc/tree-
ssa-loop-ivopts.c:5729
#5 0x001f2ed8 in rewrite_uses (data=0xbffff6f0) at ../../gcc/tree-ssa-loop-ivopts.c:5765
#6 0x001f3750 in tree_ssa_iv_optimize_loop (data=0xbffff6f0, loop=0x2105230) at ../../gcc/tree-
ssa-loop-ivopts.c:5941
#7 0x001f3858 in tree_ssa_iv_optimize (loops=0x21043a0) at ../../gcc/tree-ssa-loop-ivopts.c:5978
#8 0x001a3bf0 in tree_ssa_loop_ivopts () at ../../gcc/tree-ssa-loop.c:416
#9 0x005ba828 in execute_one_pass (pass=0x80cc8c) at ../../gcc/passes.c:778
#10 0x005ba948 in execute_pass_list (pass=0x80cc8c) at ../../gcc/passes.c:810
#11 0x005ba970 in execute_pass_list (pass=0x80ca50) at ../../gcc/passes.c:811
#12 0x005ba970 in execute_pass_list (pass=0x80c498) at ../../gcc/passes.c:811
#13 0x0010aaa0 in tree_rest_of_compilation (fndecl=0x174e780) at ../../gcc/tree-optimize.c:420
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rakdver at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
GCC build triplet|alphaev68-unknown-linux-gnu |
GCC host triplet|alphaev68-unknown-linux-gnu |
GCC target triplet|alphaev68-unknown-linux-gnu |alphaev68-*-linux-gnu
Last reconfirmed|0000-00-00 00:00:00 |2005-07-17 08:09:53
date| |
Summary|Segfault with ivopts at -O |[4.1 Regression] Segfault
| |with ivopts at -O
Target Milestone|--- |4.1.0
Version|4.0.2 |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22516
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/22516] [4.1 Regression] Segfault with ivopts at -O
2005-07-17 0:28 [Bug tree-optimization/22516] New: Segfault with ivopts at -O falk at debian dot org
2005-07-17 9:51 ` [Bug tree-optimization/22516] [4.1 Regression] " pinskia at gcc dot gnu dot org
@ 2005-07-18 9:46 ` rakdver at gcc dot gnu dot org
2005-09-09 1:01 ` janis at gcc dot gnu dot org
2005-09-10 13:04 ` belyshev at depni dot sinp dot msu dot ru
3 siblings, 0 replies; 5+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-07-18 9:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-07-18 09:44 -------
Probably the same as PR 22438.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22516
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/22516] [4.1 Regression] Segfault with ivopts at -O
2005-07-17 0:28 [Bug tree-optimization/22516] New: Segfault with ivopts at -O falk at debian dot org
2005-07-17 9:51 ` [Bug tree-optimization/22516] [4.1 Regression] " pinskia at gcc dot gnu dot org
2005-07-18 9:46 ` rakdver at gcc dot gnu dot org
@ 2005-09-09 1:01 ` janis at gcc dot gnu dot org
2005-09-10 13:04 ` belyshev at depni dot sinp dot msu dot ru
3 siblings, 0 replies; 5+ messages in thread
From: janis at gcc dot gnu dot org @ 2005-09-09 1:01 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From janis at gcc dot gnu dot org 2005-09-09 01:00 -------
A regression hunt on powerpc-linux shows that the test case starts failing
with this patch from rakdver:
http://gcc.gnu.org/ml/gcc-cvs/2005-07/msg00181.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22516
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/22516] [4.1 Regression] Segfault with ivopts at -O
2005-07-17 0:28 [Bug tree-optimization/22516] New: Segfault with ivopts at -O falk at debian dot org
` (2 preceding siblings ...)
2005-09-09 1:01 ` janis at gcc dot gnu dot org
@ 2005-09-10 13:04 ` belyshev at depni dot sinp dot msu dot ru
3 siblings, 0 replies; 5+ messages in thread
From: belyshev at depni dot sinp dot msu dot ru @ 2005-09-10 13:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From belyshev at depni dot sinp dot msu dot ru 2005-09-10 13:03 -------
(In reply to comment #3)
> A regression hunt on powerpc-linux shows that the test case starts failing
> with this patch from rakdver:
>
> http://gcc.gnu.org/ml/gcc-cvs/2005-07/msg00181.html
so this is a dup of PR 22438
*** This bug has been marked as a duplicate of 22438 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22516
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2005-09-10 13:04 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-07-17 0:28 [Bug tree-optimization/22516] New: Segfault with ivopts at -O falk at debian dot org
2005-07-17 9:51 ` [Bug tree-optimization/22516] [4.1 Regression] " pinskia at gcc dot gnu dot org
2005-07-18 9:46 ` rakdver at gcc dot gnu dot org
2005-09-09 1:01 ` janis at gcc dot gnu dot org
2005-09-10 13:04 ` belyshev at depni dot sinp dot msu dot ru
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