r166605 - in /trunk/gcc: ChangeLog tree-ssa-mat...

[rth@gcc.gnu.org]

Author: rth
Date: Thu Nov 11 16:20:54 2010
New Revision: 166605

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166605
Log:
Recognize -(a * b) + c -> fma(-a,b,c).

	* tree-ssa-math-opts.c (convert_mult_to_fma): Handle a NEGATE_EXPR
	in between the MULT and the PLUS/MINUS.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-math-opts.c