From: spop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 7 May 2010 16:15:52 +0000 (+0000)
Subject: Account for loop unrolling in the insn-to-prefetch ratio heuristic.
X-Git-Url: http://git.sourceforge.jp/view?a=commitdiff_plain;h=a995daf5e646e9b465f1d06686a8006d5696e5ed;hp=a995daf5e646e9b465f1d06686a8006d5696e5ed;p=pf3gnuchains%2Fgcc-fork.git

Account for loop unrolling in the insn-to-prefetch ratio heuristic.

2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>

	* tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
	Account for loop unrolling in the insn-to-prefetch ratio heuristic.
	(loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
	the unroll_factor.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159162 138bc75d-0d04-0410-961f-82ee72b054a4
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