[Bug tree-optimization/46785] Doesn't vectorize reduction x += y*y

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46785

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-06 
10:05:11 UTC ---
Author: rguenth
Date: Mon Dec  6 10:05:07 2010
New Revision: 167486

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167486
Log:
2010-12-06  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/46785
    * tree-vect-loop.c (vect_is_simple_reduction_1): Also allow
    call statements as operand definition.

    * gcc.dg/vect/fast-math-vect-reduc-9.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-9.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c