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[Bug tree-optimization/49771] New: [4.7 Regression] wrong code with -ftree-vectorize
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 17 Jul 2011 20:39:41 +0000
- Subject: [Bug tree-optimization/49771] New: [4.7 Regression] wrong code with -ftree-vectorize
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49771
Summary: [4.7 Regression] wrong code with -ftree-vectorize
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 24783
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24783
reduced testcase (from gcc.dg/graphite/block-0.c)
Output:
$ gcc -O -ftree-vectorize testcase.c
$ ./a.out
Aborted
$ gcc -O3 testcase.c
$ ./a.out
Aborted
Tested revisions:
r176370 - fail
4.6 r176280 - OK