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[Bug tree-optimization/46194] New: [4.5/4.6 Regression] gcc.dg/graphite/block-0.c FAILs with -ftree-parallelize-loops
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 27 Oct 2010 00:27:01 +0000
- Subject: [Bug tree-optimization/46194] New: [4.5/4.6 Regression] gcc.dg/graphite/block-0.c FAILs with -ftree-parallelize-loops
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46194
Summary: [4.5/4.6 Regression] gcc.dg/graphite/block-0.c FAILs
with -ftree-parallelize-loops
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Graphite is not needed to reproduce this. The output value looks "random", it
differs in different runs.
Output (with #define DEBUG 1):
$ gcc -O -ftree-parallelize-loops=2 block-0.c && ./a.out
res = 2155
Aborted
$ ./a.out
res = 2156
Aborted
$ ./a.out
res = 2201
Aborted
Tested revisions:
r165915 - fail
r153685 - fail
4.5 r165781 - fail
4.4 r165754 - OK