r145357 - in /trunk/gcc: ChangeLog loop-iv.c

[bernds@gcc.gnu.org]

Author: bernds
Date: Tue Mar 31 15:24:24 2009
New Revision: 145357

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145357
Log:
	* loop-iv.c (replace_single_def_regs, replace_in_expr): New static
	functions.
	(simplify_using_assignment, simplify_using_initial_values): Call 
	replace_in_expr to make replacements.  Call replace_single_def_regs
	once on the initial version of the expression.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/loop-iv.c