[Bug tree-optimization/81354] [5/6 Regression] Segmentation fault in SSA Strength Reduction using -O3

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81354

--- Comment #10 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Tue Aug  8 12:52:22 2017
New Revision: 250955

URL: https://gcc.gnu.org/viewcvs?rev=250955&root=gcc&view=rev
Log:
[gcc]

2017-08-08  Bill Schmidt  <wschm...@linux.vnet.ibm.com>

        PR tree-optimization/81354
        * gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
        Insert on edges rather than explicitly creating landing pads.
        (analyze_candidates_and_replace): Commit edge inserts.


[gcc/testsuite]

2017-08-08  Bill Schmidt  <wschm...@linux.vnet.ibm.com>

        PR tree-optimization/81354
        * g++.dg/torture/pr81354.C: New file.


Added:
    trunk/gcc/testsuite/g++.dg/torture/pr81354.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-strength-reduction.c
    trunk/gcc/testsuite/ChangeLog