[Bug tree-optimization/46194] [4.5/4.6 Regression] gcc.dg/graphite/block-0.c FAILs with -ftree-parallelize-loops

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46194

--- Comment #11 from Sebastian Pop <spop at gcc dot gnu.org> 2011-02-05 01:39:23 UTC ---
Author: spop
Date: Sat Feb  5 01:39:20 2011
New Revision: 169847

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169847
Log:
Fix PR46194: fix the computation of distance vectors.

2011-02-04  Sebastian Pop  <sebastian.pop@amd.com>

    PR tree-optimization/46194
    * tree-data-ref.c (analyze_miv_subscript): Remove comment.
    (build_classic_dist_vector_1): Do not represent classic distance
    vectors when the access functions are variating in different loops.

    * gcc.dg/autopar/pr46194.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/autopar/pr46194.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c