[Bug tree-optimization/83277] [8 Regression] [graphite] Wrong code w/ -O2 -floop-nest-optimize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83277

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Dec  5 15:10:23 2017
New Revision: 255424

URL: https://gcc.gnu.org/viewcvs?rev=255424&root=gcc&view=rev
Log:
2017-12-05  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/83277
        * graphite-isl-ast-to-gimple.c (should_copy_to_new_region): Make sure
        to code-gen liveout vars.

        * gcc.dg/graphite/pr83277.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr83277.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-isl-ast-to-gimple.c
    trunk/gcc/testsuite/ChangeLog