[Bug tree-optimization/69108] [6 Regression] ICE in gather_scalar_reductions with -ftree-parallelize-loops=2

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69108

--- Comment #3 from vries at gcc dot gnu.org ---
Author: vries
Date: Mon Jan 11 09:19:33 2016
New Revision: 232211

URL: https://gcc.gnu.org/viewcvs?rev=232211&root=gcc&view=rev
Log:
Handle case that outer phi res is not used in a phi in gather_scalar_reductions

2016-01-11  Tom de Vries  <t...@codesourcery.com>

        PR tree-optimization/69108
        * tree-parloops.c (gather_scalar_reductions): Handle case that outer
phi
        res is not used in a phi.

        * gcc.dg/autopar/pr69108.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/autopar/pr69108.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-parloops.c