[Bug tree-optimization/64995] [5 Regression] ICE in vn_reference_insert_pieces, at tree-ssa-sccvn.c:2341

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64995

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Feb 10 13:37:54 2015
New Revision: 220581

URL: https://gcc.gnu.org/viewcvs?rev=220581&root=gcc&view=rev
Log:
2015-02-10  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/64995
    * tree-ssa-sccvn.c (set_ssa_val_to): Assert that the
    value we use is final.
    (visit_reference_op_store): Always valueize op.
    (visit_use): Properly valueize vuses.

    * g++.dg/torture/pr64995.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr64995.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c