[Bug tree-optimization/85082] [8 Regression] ICE with -Ofast in vn_reference_insert_pieces, at tree-ssa-sccvn.c:2624

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85082

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 27 12:13:55 2018
New Revision: 258877

URL: https://gcc.gnu.org/viewcvs?rev=258877&root=gcc&view=rev
Log:
2018-03-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/85082
        * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
        Valueize the VUSE.

        * gfortran.dg/pr85082.f90: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr85082.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c