[Bug tree-optimization/64493] [4.8/4.9/5 Regression] ICE at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64493

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jan 14 08:32:18 2015
New Revision: 219579

URL: https://gcc.gnu.org/viewcvs?rev=219579&root=gcc&view=rev
Log:
2015-01-14  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/64493
    PR tree-optimization/64495
    * tree-vect-loop.c (vect_finalize_reduction): For double-reductions
    assign the proper vectorized PHI to the inner loop exit PHIs.

    * gcc.dg/vect/pr64493.c: New testcase.
    * gcc.dg/vect/pr64495.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr64493.c
    trunk/gcc/testsuite/gcc.dg/vect/pr64495.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c