[Bug tree-optimization/82264] [6/7/8 Regression] ICE in vn_phi_lookup at gcc/tree-ssa-sccvn.c:3125

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82264

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Sep 20 11:08:35 2017
New Revision: 253005

URL: https://gcc.gnu.org/viewcvs?rev=253005&root=gcc&view=rev
Log:
2017-09-20  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/82264
        * tree-ssa-sccvn.c (vn_phi_eq): Use safe_dyn_cast to check
        for GIMPLE_CONDs.
        (vn_phi_lookup): Likewise.
        (vn_phi_insert): Likewise.

        * gcc.dg/torture/pr82264.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr82264.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c