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| author | Changpeng Fang <changpeng.fang@amd.com> | 2010-05-17 22:34:03 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-05-17 22:34:03 +0000 |
| commit | d3a9b459b78d601a3790e688cd8c40d164365120 (patch) | |
| tree | e8b128de909b41e13e29fd6233fdada3cff63412 /gcc/doc | |
| parent | 8532678c05ca513c77a9163e1546f4019a82beef (diff) | |
| download | gcc-d3a9b459b78d601a3790e688cd8c40d164365120.zip gcc-d3a9b459b78d601a3790e688cd8c40d164365120.tar.gz gcc-d3a9b459b78d601a3790e688cd8c40d164365120.tar.bz2 | |
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.
From-SVN: r159515
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index e994902..bd29d24 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -8518,8 +8518,7 @@ The size of L2 cache, in kilobytes. @item min-insn-to-prefetch-ratio The minimum ratio between the number of instructions and the -number of prefetches to enable prefetching in a loop with an -unknown trip count. +number of prefetches to enable prefetching in a loop. @item prefetch-min-insn-to-mem-ratio The minimum ratio between the number of instructions and the |