http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56787
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.9.0
Target Milestone|4.8.1 |4.8.2
Summary|[4.8/4.9 Regression] |[4.8 Regression]
|Vectorization fails because |Vectorization fails because
|of CLOBBER statements |of CLOBBER statements
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue May 28 13:36:25 2013
New Revision: 199380
URL: http://gcc.gnu.org/viewcvs?rev=199380&root=gcc&view=rev
Log:
2013-05-28 Richard Biener <rguent...@suse.de>
PR tree-optimization/56787
* tree-vect-data-refs.c (vect_analyze_data_refs): Drop clobbers
from the list of data references.
* tree-vect-loop.c (vect_determine_vectorization_factor): Skip
clobbers.
(vect_analyze_loop_operations): Likewise.
(vect_transform_loop): Remove clobbers.
* gcc.dg/vect/pr56787.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr56787.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-data-refs.c
trunk/gcc/tree-vect-loop.c
