[Bug tree-optimization/83563] [8 Regression] [graphite] ICE: Segmentation fault (in instantiate_scev_r)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83563

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Jan  8 15:04:53 2018
New Revision: 256343

URL: https://gcc.gnu.org/viewcvs?rev=256343&root=gcc&view=rev
Log:
2018-01-08  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/83563
        * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
        cache.

        * gcc.dg/graphite/pr83563.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr83563.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite.c
    trunk/gcc/testsuite/ChangeLog