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| author | Changpeng Fang <changpeng.fang@amd.com> | 2010-05-07 17:26:02 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-05-07 17:26:02 +0000 |
| commit | 9bf4598b0df6d72a5b10dc3acf82034c42d0e220 (patch) | |
| tree | 5749b3a61855b4d88b29ee98bebe99c3111c7654 /gcc/ada/gcc-interface/utils.c | |
| parent | ccacf0e1937278d8db2d0be7f6b45d2fce6afc69 (diff) | |
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Define the TRIP_COUNT_TO_AHEAD_RATIO heuristic.
2010-05-07 Changpeng Fang <changpeng.fang@amd.com>
* tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
(is_loop_prefetching_profitable): Do not insert prefetches
when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
times the prefetch ahead distance.
From-SVN: r159163
Diffstat (limited to 'gcc/ada/gcc-interface/utils.c')
0 files changed, 0 insertions, 0 deletions