[Bug tree-optimization/83255] [8 Regression] [graphite] Wrong code w/ -O1 -floop-nest-optimize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83255

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Dec  4 14:04:36 2017
New Revision: 255382

URL: https://gcc.gnu.org/viewcvs?rev=255382&root=gcc&view=rev
Log:
2017-12-04  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/83255
        * graphite-isl-ast-to-gimple.c (translate_isl_ast_node_for):
        Re-add zero-iteration check.

        * gcc.dg/graphite/pr83255.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr83255.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-isl-ast-to-gimple.c
    trunk/gcc/testsuite/ChangeLog