[Bug tree-optimization/86062] Missed redundancy elimination with struct and array

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86062

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jun  6 13:03:29 2018
New Revision: 261231

URL: https://gcc.gnu.org/viewcvs?rev=261231&root=gcc&view=rev
Log:
2018-06-06  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/86062
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle arbitrary
        component refs ontop
        of to be offsetted base.

        * g++.dg/tree-ssa/pr86062.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr86062.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c