r206552 - in /trunk/gcc: ChangeLog tree-ssa-loo...

[amker@gcc.gnu.org]

Author: amker
Date: Sat Jan 11 09:33:39 2014
New Revision: 206552

URL: http://gcc.gnu.org/viewcvs?rev=206552&root=gcc&view=rev
Log:

	* tree-ssa-loop-ivopts.c (iv_ca_narrow): New parameter.
	Start narrowing with START.  Apply candidate-use pair
	and check overall cost in narrowing.
	(iv_ca_prune): Pass new argument.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-loop-ivopts.c