[Bug tree-optimization/77646] [5/6 Regression] GCC Segfault with -O3

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77646

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Sep 20 12:20:37 2016
New Revision: 240261

URL: https://gcc.gnu.org/viewcvs?rev=240261&root=gcc&view=rev
Log:
2016-09-20  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/77646
        * tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
        a VDEF.

        * gcc.dg/torture/pr77646.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr77646.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c