[Bug tree-optimization/87217] [9 regression] ICE in in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:709 when compiling SPEC2000 starting with r264069

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87217

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Sep  5 10:33:41 2018
New Revision: 264121

URL: https://gcc.gnu.org/viewcvs?rev=264121&root=gcc&view=rev
Log:
2018-09-05  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/87217
        * tree-ssa-sccvn.c (vuse_valueize): New.
        (vn_reference_lookup_pieces): Use it.
        (vn_reference_lookup): Likewise.

        * gfortran.dg/pr87217.f: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr87217.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c