[Bug tree-optimization/69728] [6/7/8 Regression] internal compiler error: in outer_projection_mupa, at graphite-sese-to-poly.c:1175

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69728

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Sep 19 08:25:17 2017
New Revision: 252968

URL: https://gcc.gnu.org/viewcvs?rev=252968&root=gcc&view=rev
Log:
2017-09-19  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/69728
        * graphite-sese-to-poly.c (schedule_error): New global.
        (add_loop_schedule): Handle empty domain by failing the
        schedule.
        (build_original_schedule): Handle schedule_error.

        * gfortran.dg/graphite/pr69728.f90: New testcase.
        * gcc.dg/graphite/pr69728.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr69728.c
    trunk/gcc/testsuite/gfortran.dg/graphite/pr69728.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-sese-to-poly.c
    trunk/gcc/testsuite/ChangeLog