[Bug tree-optimization/81790] [8 Regression] ICE in vn_nary_build_or_lookup_1, at tree-ssa-sccvn.c:1738

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81790

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Aug 15 11:26:32 2017
New Revision: 251103

URL: https://gcc.gnu.org/viewcvs?rev=251103&root=gcc&view=rev
Log:
2017-08-15  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/81790
        * tree-ssa-sccvn.c (vn_lookup_simplify_result): Handle both
        CONSTRUCTORs from simplifying and VN.

        * gcc.dg/torture/pr81790.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr81790.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c