[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 #13 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Wed Aug 16 14:11:26 2017
New Revision: 251121

URL: https://gcc.gnu.org/viewcvs?rev=251121&root=gcc&view=rev
Log:
[gcc]

2017-08-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        Backport from mainline
        2017-08-08  Bill Schmidt  <wschmidt@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]

2017-08-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        Backport from mainline
        2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

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


Added:
    branches/gcc-6-branch/gcc/testsuite/g++.dg/torture/pr81354.C
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/gimple-ssa-strength-reduction.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog