[Bug tree-optimization/86865] [9 Regression] Wrong code w/ -O2 -floop-parallelize-all -fstack-reuse=none -fwrapv -fno-tree-ch -fno-tree-dce -fno-tree-dominator-opts -fno-tree-loop-ivcanon

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86865

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Jan 25 10:12:37 2019
New Revision: 268260

URL: https://gcc.gnu.org/viewcvs?rev=268260&root=gcc&view=rev
Log:
2019-01-25  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/86865
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Reject non-do-while loops.

        * gcc.dg/graphite/pr86865.c: New testcase.
        * gcc.dg/graphite/pr69728.c: XFAIL.
        * gcc.dg/graphite/scop-21.c: Likewise.

        libgomp/
        * testsuite/libgomp.graphite/force-parallel-5.c: XFAIL.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/graphite/pr86865.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/graphite-scop-detection.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/graphite/pr69728.c
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/graphite/scop-21.c
    branches/gcc-8-branch/libgomp/ChangeLog
    branches/gcc-8-branch/libgomp/testsuite/libgomp.graphite/force-parallel-5.c