[Bug tree-optimization/50328] reduction with constant or invariant not vectorized

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50328

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-09 
12:35:16 UTC ---
Author: rguenth
Date: Fri Sep  9 12:35:11 2011
New Revision: 178728

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=178728
Log:
2011-09-09  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/50328
    * tree-vect-loop.c (vect_is_simple_reduction_1): Allow one
    constant or default-def operand.

    * gcc.dg/vect/fast-math-vect-outer-7.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/fast-math-vect-outer-7.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c