[Bug tree-optimization/81083] [7 Regression] ICE: Unable to coalesce ssa_names 4 and 13 which are marked as MUST COALESCE

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81083

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jun 14 07:22:32 2017
New Revision: 249182

URL: https://gcc.gnu.org/viewcvs?rev=249182&root=gcc&view=rev
Log:
2017-06-14  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/81083
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Do not use abnormals
        as values.

        * gcc.dg/torture/pr81083.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr81083.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c