[Bug tree-optimization/80374] [7 Regression] ICE in fold_convert_loc, at fold-const.c:2384

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80374

--- Comment #3 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Mon Apr 10 19:19:42 2017
New Revision: 246819

URL: https://gcc.gnu.org/viewcvs?rev=246819&root=gcc&view=rev
Log:
        PR tree-optimization/80374
        * tree-ssa-dom.c (derive_equivalences_from_bit_ior): Do not try to
        record anything if we can not convert integer_zero_node to the
        desired type.

        PR tree-optimization/80374
        * g++.dg/pr80374.c: New test.

Added:
    trunk/gcc/testsuite/g++.dg/pr80374.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dom.c