[Bug tree-optimization/79977] [6 Regression] [graphite] ICE in outermost_loop_in_sese, at sese.c:300 w/ -O2 -floop-nest-optimize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79977

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Mar  9 16:19:37 2017
New Revision: 246006

URL: https://gcc.gnu.org/viewcvs?rev=246006&root=gcc&view=rev
Log:
2017-03-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79977
        * graphite-scop-detection.c (scop_detection::merge_sese):
        Handle the case of extra exits to blocks dominating the entry.

        * gcc.dg/graphite/pr79977.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr79977.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-scop-detection.c
    trunk/gcc/testsuite/ChangeLog