[Bug tree-optimization/70956] [6/7 Regression] ICE in build_cross_bb_scalars_def, at graphite-scop-detection.c:1725

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70956

--- Comment #4 from vries at gcc dot gnu.org ---
Author: vries
Date: Sat May  7 07:02:36 2016
New Revision: 235995

URL: https://gcc.gnu.org/viewcvs?rev=235995&root=gcc&view=rev
Log:
backport "Handle NULL def in build_cross_bb_scalars_def"

2016-05-07  Tom de Vries  <t...@codesourcery.com>

        backport:
        2016-05-07  Tom de Vries  <t...@codesourcery.com>

        PR tree-optimization/70956
        * graphite-scop-detection.c (build_cross_bb_scalars_def): Handle NULL
        def.

        * gcc.dg/graphite/pr70956.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/graphite/pr70956.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/graphite-scop-detection.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog