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Also apply the insn to prefetch ratio heuristic to loops with known trip count.
authorspop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>
Mon, 17 May 2010 22:34:03 +0000 (22:34 +0000)
committerspop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>
Mon, 17 May 2010 22:34:03 +0000 (22:34 +0000)
commit016efb936c2cf2bb300fb31f1c0dfccbaddec697
treee8b128de909b41e13e29fd6233fdada3cff63412
parentc0a0de5e914f37a95c9d67f1428d4b21c5f8da9d
Also apply the insn to prefetch ratio heuristic to loops with known trip count.

2010-05-17  Changpeng Fang  <changpeng.fang@amd.com>

* doc/invoke.texi: Update documentation for min-insn-to-prefetch-ratio.
* tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Also apply
the insn to prefetch ratio heuristic to loops with known trip count.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159515 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/doc/invoke.texi
gcc/tree-ssa-loop-prefetch.c