r192426 - in /trunk/gcc: ChangeLog loop-iv.c lo...

[ebotcazou@gcc.gnu.org]

Author: ebotcazou
Date: Sat Oct 13 20:22:07 2012
New Revision: 192426

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192426
Log:
	PR rtl-optimization/54871
	* loop-iv.c (simplify_using_initial_values): When scanning previous
	basic blocks, prune the recorded conditions if the current insn was
	not used to make a replacement.

	* loop-unroll.c (decide_unroll_constant_iterations): Clean up message.
	(unroll_loop_constant_iterations): Clarify head comment.
	(decide_unroll_runtime_iterations): Clean up message.
	(unroll_loop_runtime_iterations): Clarify head comment.
	(decide_peel_simple): Clean up message.
	(peel_loop_simple): Clarify head comment.
	(decide_unroll_stupid): Clean up message.
	(unroll_loop_stupid): Clarify head comment.

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