[Bug tree-optimization/49771] [4.7 Regression] wrong code with -ftree-vectorize

[irar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49771

--- Comment #6 from irar at gcc dot gnu.org 2011-07-19 06:25:11 UTC ---
Author: irar
Date: Tue Jul 19 06:25:07 2011
New Revision: 176434

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176434
Log:

        PR tree-optimization/49771
        * tree-vect-loop-manip.c (vect_vfa_segment_size): In case of
        zero step, set segment length to the size of the data-ref's type.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr49771.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop-manip.c