[Bug tree-optimization/79622] [6/7/8 Regression] Wrong code w/ -O2 -floop-nest-optimize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79622

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Sep 18 07:34:04 2017
New Revision: 252905

URL: https://gcc.gnu.org/viewcvs?rev=252905&root=gcc&view=rev
Log:
2017-09-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79622
        * graphite-scop-detection.c (build_cross_bb_scalars_def): Properly
        handle PHIs.
        (build_cross_bb_scalars_use): Likewise.

        * gcc.dg/graphite/pr79622.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr79622.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-scop-detection.c
    trunk/gcc/testsuite/ChangeLog