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* [Bug tree-optimization/17716] New: ICE in tree-ssa-dom
@ 2004-09-28 17:42 jakub at gcc dot gnu dot org
2004-09-28 18:08 ` [Bug tree-optimization/17716] [4.0 Regression] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: jakub at gcc dot gnu dot org @ 2004-09-28 17:42 UTC (permalink / raw)
To: gcc-bugs
/* { dg-do compile } */
/* { dg-options "-O2" } */
long x;
void
f3 (int i, ...)
{
__builtin_va_list aps[10];
__builtin_va_start(aps[4],i);
x = __builtin_va_arg(aps[4],long);
__builtin_va_end(aps[4]);
}
ICEs e.g. on powerpc (and on s390* I think as well, maybe others) in dom pass.
The problem seems that cprop propagates:
D.1144_7 = &aps[4];
...
addr.0_15 = D.1144_7->overflow_arg_area;
into:
addr.0_15 = (&aps[4])->overflow_arg_area;
(cprop_operand/propagate_value), but nothing verifies the result is really
gimple.
--
Summary: ICE in tree-ssa-dom
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
CC: dnovillo at redhat dot com,gcc-bugs at gcc dot gnu dot
org
GCC target triplet: powerpc-redhat-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17716
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/17716] [4.0 Regression] ICE in tree-ssa-dom
2004-09-28 17:42 [Bug tree-optimization/17716] New: ICE in tree-ssa-dom jakub at gcc dot gnu dot org
@ 2004-09-28 18:08 ` pinskia at gcc dot gnu dot org
2004-09-28 18:18 ` pinskia 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 @ 2004-09-28 18:08 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-28 18:08 -------
The problem is that fold does not fold *&a[0], I think I have a patch to do that but I need to real testing
on the patch.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2004-09-28 18:08:21
date| |
Summary|ICE in tree-ssa-dom |[4.0 Regression] ICE in
| |tree-ssa-dom
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17716
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/17716] [4.0 Regression] ICE in tree-ssa-dom
2004-09-28 17:42 [Bug tree-optimization/17716] New: ICE in tree-ssa-dom jakub at gcc dot gnu dot org
2004-09-28 18:08 ` [Bug tree-optimization/17716] [4.0 Regression] " pinskia at gcc dot gnu dot org
@ 2004-09-28 18:18 ` pinskia at gcc dot gnu dot org
2004-10-15 3:49 ` bje at gcc dot gnu dot org
2004-10-21 1:12 ` bje at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-28 18:18 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-28 18:18 -------
Of course this only effects SYS-V and not PowerOpen based ABI for PPC.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17716
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/17716] [4.0 Regression] ICE in tree-ssa-dom
2004-09-28 17:42 [Bug tree-optimization/17716] New: ICE in tree-ssa-dom jakub at gcc dot gnu dot org
2004-09-28 18:08 ` [Bug tree-optimization/17716] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-09-28 18:18 ` pinskia at gcc dot gnu dot org
@ 2004-10-15 3:49 ` bje at gcc dot gnu dot org
2004-10-21 1:12 ` bje at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: bje at gcc dot gnu dot org @ 2004-10-15 3:49 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |bje at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17716
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/17716] [4.0 Regression] ICE in tree-ssa-dom
2004-09-28 17:42 [Bug tree-optimization/17716] New: ICE in tree-ssa-dom jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2004-10-15 3:49 ` bje at gcc dot gnu dot org
@ 2004-10-21 1:12 ` bje at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: bje at gcc dot gnu dot org @ 2004-10-21 1:12 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bje at gcc dot gnu dot org 2004-10-21 01:12 -------
Pinski asked me to close this :-)
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17716
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-10-21 1:12 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2004-09-28 17:42 [Bug tree-optimization/17716] New: ICE in tree-ssa-dom jakub at gcc dot gnu dot org
2004-09-28 18:08 ` [Bug tree-optimization/17716] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-09-28 18:18 ` pinskia at gcc dot gnu dot org
2004-10-15 3:49 ` bje at gcc dot gnu dot org
2004-10-21 1:12 ` bje at gcc dot gnu dot org
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