[Bug tree-optimization/68373] autopar fails on loop exit phi with argument defined outside loop

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68373

--- Comment #4 from vries at gcc dot gnu.org ---
Author: vries
Date: Fri Nov 20 10:25:26 2015
New Revision: 230650

URL: https://gcc.gnu.org/viewcvs?rev=230650&root=gcc&view=rev
Log:
Do final value replacement in try_create_reduction_list

2015-11-20  Tom de Vries  <t...@codesourcery.com>

        PR tree-optimization/68373
        * tree-scalar-evolution.c (final_value_replacement_loop): Factor out of
...
        (scev_const_prop): ... here.
        * tree-scalar-evolution.h (final_value_replacement_loop): Declare.
        * tree-parloops.c (try_create_reduction_list): Call
        final_value_replacement_loop.

        * gcc.dg/autopar/pr68373.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/autopar/pr68373.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-parloops.c
    trunk/gcc/tree-scalar-evolution.c
    trunk/gcc/tree-scalar-evolution.h