[Bug tree-optimization/66980] [graphite] -floop-nest-optimize produces wrong code

[spop at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66980

--- Comment #1 from Sebastian Pop <spop at gcc dot gnu.org> ---
Author: spop
Date: Thu Oct  1 22:04:07 2015
New Revision: 228357

URL: https://gcc.gnu.org/viewcvs?rev=228357&root=gcc&view=rev
Log:
correctly handle non affine data references

2015-10-01  Sebastian Pop  <s....@samsung.com>
            Aditya Kumar  <aditya...@samsung.com>
        PR tree-optimization/66980
        * graphite-scop-detection.c (stmt_has_simple_data_refs_p): Return false
        when data reference analysis has failed.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/scop-pr66980.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-scop-detection.c