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* [Bug tree-optimization/57185] New: ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta
@ 2013-05-06 11:59 antoine.balestrat at gmail dot com
2013-05-06 12:09 ` [Bug tree-optimization/57185] [4.8/4.9 Regression] " rguenth at gcc dot gnu.org
2013-05-07 8:13 ` rguenth at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: antoine.balestrat at gmail dot com @ 2013-05-06 11:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57185
Bug #: 57185
Summary: ICE: Segmentation fault in add_field_for_reduction
with -ftree-parallelize-loops=2 -fipa-pta
Classification: Unclassified
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: antoine.balestrat@gmail.com
Using GCC 4.9.0 as of 20130506 :
$ cat kk.c
int a, b;
int *d;
void f(void)
{
int c;
b %= 1;
if(1 - (b < 1))
{
int *q = 0;
if(a)
{
c = 0;
lbl:
for(*d; *d; ++*d)
if(c ? : a ? : (c = 1) ? : 0)
*q &= 1;
return;
}
q = 1;
}
goto lbl;
}
$ xgcc -O3 -w -ftree-parallelize-loops=2 -fipa-pta kk.c
kk.c: In function ‘f’:
kk.c:3:1: internal compiler error: Segmentation fault
void f(void)
^
0x90c35f crash_signal
../../srcdir/gcc/toplev.c:333
0x9906d0 add_field_for_reduction(reduction_info**, tree_node*)
../../srcdir/gcc/tree-parloops.c:967
0x992a52 traverse_noresize<tree_node*, add_field_for_reduction>
../../srcdir/gcc/hash-table.h:928
0x992a52 traverse<tree_node*, add_field_for_reduction>
../../srcdir/gcc/hash-table.h:950
0x992a52 separate_decls_in_region
../../srcdir/gcc/tree-parloops.c:1359
0x9948e5 gen_parallel_loop
../../srcdir/gcc/tree-parloops.c:1868
0x9948e5 parallelize_loops()
../../srcdir/gcc/tree-parloops.c:2218
0xa1c982 tree_parallelize_loops
../../srcdir/gcc/tree-ssa-loop.c:559
0xa1c982 tree_parallelize_loops
../../srcdir/gcc/tree-ssa-loop.c:554
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/57185] ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta
Date: Mon, 06 May 2013 12:05:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
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Message-ID: <bug-57185-4-sHNbUkJ517@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-57185-4@http.gcc.gnu.org/bugzilla/>
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idW185
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-05-06
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-05-06 12:04:52 UTC ---
Mine.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/57185] [4.8/4.9 Regression] ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta
2013-05-06 11:59 [Bug tree-optimization/57185] New: ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta antoine.balestrat at gmail dot com
@ 2013-05-06 12:09 ` rguenth at gcc dot gnu.org
2013-05-07 8:13 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-05-06 12:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57185
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.7.2
Target Milestone|--- |4.8.1
Summary|ICE: Segmentation fault in |[4.8/4.9 Regression] ICE:
|add_field_for_reduction |Segmentation fault in
|with |add_field_for_reduction
|-ftree-parallelize-loops=2 |with
|-fipa-pta |-ftree-parallelize-loops=2
| |-fipa-pta
Known to fail| |4.8.0
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-05-06 12:09:42 UTC ---
Index: gcc/tree-parloops.c
===================================================================
--- gcc/tree-parloops.c (revision 198625)
+++ gcc/tree-parloops.c (working copy)
@@ -964,9 +964,9 @@ add_field_for_reduction (reduction_info
{
struct reduction_info *const red = *slot;
- tree var = SSA_NAME_VAR (gimple_assign_lhs (red->reduc_stmt));
- tree field = build_decl (gimple_location (red->reduc_stmt),
- FIELD_DECL, DECL_NAME (var), TREE_TYPE (var));
+ tree var = gimple_assign_lhs (red->reduc_stmt);
+ tree field = build_decl (gimple_location (red->reduc_stmt), FIELD_DECL,
+ SSA_NAME_IDENTIFIER (var), TREE_TYPE (var));
insert_field_into_struct (type, field);
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/57185] [4.8/4.9 Regression] ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta
2013-05-06 11:59 [Bug tree-optimization/57185] New: ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta antoine.balestrat at gmail dot com
2013-05-06 12:09 ` [Bug tree-optimization/57185] [4.8/4.9 Regression] " rguenth at gcc dot gnu.org
@ 2013-05-07 8:13 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-05-07 8:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57185
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2013-05-07 08:12:59 UTC ---
Author: rguenth
Date: Mon May 6 15:06:41 2013
New Revision: 198630
URL: http://gcc.gnu.org/viewcvs?rev=198630&root=gcc&view=rev
Log:
2013-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/57185
* tree-parloops.c (add_field_for_reduction): Handle anonymous
SSA names properly.
* gcc.dg/autopar/pr57185.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/autopar/pr57185.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-parloops.c
Author: rguenth
Date: Tue May 7 08:11:46 2013
New Revision: 198665
URL: http://gcc.gnu.org/viewcvs?rev=198665&root=gcc&view=rev
Log:
2013-05-07 Richard Biener <rguenther@suse.de>
Backport from mainline
2013-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/57185
* tree-parloops.c (add_field_for_reduction): Handle anonymous
SSA names properly.
* gcc.dg/autopar/pr57185.c: New testcase.
2013-04-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/57000
* tree-ssa-reassoc.c (pass_reassoc): Add TODO_update_ssa_only_virtuals.
* gcc.dg/tree-ssa/reassoc-27.c: New testcase.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/autopar/pr57185.c
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/tree-ssa/reassoc-27.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-parloops.c
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-05-06 11:59 [Bug tree-optimization/57185] New: ICE: Segmentation fault in add_field_for_reduction with -ftree-parallelize-loops=2 -fipa-pta antoine.balestrat at gmail dot com
2013-05-06 12:09 ` [Bug tree-optimization/57185] [4.8/4.9 Regression] " rguenth at gcc dot gnu.org
2013-05-07 8:13 ` rguenth at gcc dot gnu.org
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