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* [Bug middle-end/27328] New: ICE with -fopenmp and goto
@ 2006-04-26 16:13 reichelt at gcc dot gnu dot org
2006-04-26 16:36 ` [Bug middle-end/27328] " pinskia at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2006-04-26 16:13 UTC (permalink / raw)
To: gcc-bugs
The following testcase causes an ICE (segfault in remove_exit_barriers
from tree-flow-inline.h) when compiles with -fopenmp:
=========================
void foo()
{
#pragma omp parallel
{
L1:
goto L1;
}
}
=========================
--
Summary: ICE with -fopenmp and goto
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored, openmp
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/27328] ICE with -fopenmp and goto
2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
@ 2006-04-26 16:36 ` pinskia at gcc dot gnu dot org
2006-04-27 15:39 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-26 16:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-04-26 16:36 -------
Confirmed.
--
pinskia 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 |2006-04-26 16:36:23
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/27328] ICE with -fopenmp and goto
2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
2006-04-26 16:36 ` [Bug middle-end/27328] " pinskia at gcc dot gnu dot org
@ 2006-04-27 15:39 ` jakub at gcc dot gnu dot org
2006-04-28 9:29 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-04-27 15:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from jakub at gcc dot gnu dot org 2006-04-27 15:38 -------
This is not specific to goto, any OMP structured block which the initial cfg
pass proves it will never return is a problem. In that case, the corresponding
OMP_RETURN is optimized out as unreachable. The first ICE is fairly easy
to fix:
--- omp-low.c.jj2 2006-04-27 16:35:04.000000000 +0200
+++ omp-low.c 2006-04-27 17:29:32.000000000 +0200
@@ -2231,6 +2231,11 @@ remove_exit_barrier (struct omp_region *
exit_bb = region->exit;
+ /* If the parallel region doesn't return, we don't have REGIOn->EXIT
+ block at all. */
+ if (! exit_bb)
+ return;
+
/* The last insn in the block will be the parallel's OMP_RETURN. The
workshare's OMP_RETURN will be in a preceding block. The kinds of
statements that can appear in between are extremely limited -- no
but with this, we ICE in move_sese_region_to_fn and there it will be harder
to deal with it.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rth at gcc dot gnu dot org,
| |dnovillo at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/27328] ICE with -fopenmp and goto
2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
2006-04-26 16:36 ` [Bug middle-end/27328] " pinskia at gcc dot gnu dot org
2006-04-27 15:39 ` jakub at gcc dot gnu dot org
@ 2006-04-28 9:29 ` jakub at gcc dot gnu dot org
2006-05-02 10:41 ` jakub at gcc dot gnu dot org
2006-05-02 10:47 ` jakub at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-04-28 9:29 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
URL| |http://gcc.gnu.org/ml/gcc-
| |patches/2006-
| |04/msg01080.html
Status|NEW |ASSIGNED
Last reconfirmed|2006-04-26 16:36:23 |2006-04-28 09:29:51
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/27328] ICE with -fopenmp and goto
2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-04-28 9:29 ` jakub at gcc dot gnu dot org
@ 2006-05-02 10:41 ` jakub at gcc dot gnu dot org
2006-05-02 10:47 ` jakub at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-05-02 10:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jakub at gcc dot gnu dot org 2006-05-02 10:41 -------
Subject: Bug 27328
Author: jakub
Date: Tue May 2 10:41:44 2006
New Revision: 113455
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113455
Log:
PR middle-end/27328
* omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
(expand_omp_parallel): Likewise.
* tree-cfg.c (move_sese_region_to_fn): Likewise.
* gcc.dg/gomp/pr27328.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/gomp/pr27328.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/omp-low.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-cfg.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/27328] ICE with -fopenmp and goto
2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
` (3 preceding siblings ...)
2006-05-02 10:41 ` jakub at gcc dot gnu dot org
@ 2006-05-02 10:47 ` jakub at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-05-02 10:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jakub at gcc dot gnu dot org 2006-05-02 10:47 -------
Fixed in SVN.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27328
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2006-05-02 10:47 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2006-04-26 16:13 [Bug middle-end/27328] New: ICE with -fopenmp and goto reichelt at gcc dot gnu dot org
2006-04-26 16:36 ` [Bug middle-end/27328] " pinskia at gcc dot gnu dot org
2006-04-27 15:39 ` jakub at gcc dot gnu dot org
2006-04-28 9:29 ` jakub at gcc dot gnu dot org
2006-05-02 10:41 ` jakub at gcc dot gnu dot org
2006-05-02 10:47 ` jakub at gcc dot gnu dot org
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