[Bug tree-optimization/47060] [4.6 Regression] ICE: SIGSEGV in reduction_phi (tree-parloops.c:212) with -O -ffast-math -ftree-parallelize-loops=2 -fno-tree-dce

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47060

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-30 
08:25:01 UTC ---
Author: jakub
Date: Thu Dec 30 08:24:58 2010
New Revision: 168336

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168336
Log:
    PR tree-optimization/47060
    * tree-parloops.c (reduction_phi): Return NULL if PHI is NULL.

    * gcc.dg/autopar/pr47060.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/autopar/pr47060.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-parloops.c