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| author | Dehao Chen <dehao@google.com> | 2017-02-18 03:46:51 +0000 |
|---|---|---|
| committer | Dehao Chen <dehao@google.com> | 2017-02-18 03:46:51 +0000 |
| commit | 7d230325efbd6bdbddd55750357597789fdfd154 (patch) | |
| tree | 267ea5d84ae55c91da04c58aee19659d7505d4ce /llvm/test/CodeGen | |
| parent | 982bf827b57a727ceeec9bd34c25ccb2b0133a9d (diff) | |
| download | bcm5719-llvm-7d230325efbd6bdbddd55750357597789fdfd154.tar.gz bcm5719-llvm-7d230325efbd6bdbddd55750357597789fdfd154.zip | |
Increases full-unroll threshold.
Summary:
The default threshold for fully unroll is too conservative. This patch doubles the full-unroll threshold
This change will affect the following speccpu2006 benchmarks (performance numbers were collected from Intel Sandybridge):
Performance:
403 0.11%
433 0.51%
445 0.48%
447 3.50%
453 1.49%
464 0.75%
Code size:
403 0.56%
433 0.96%
445 2.16%
447 2.96%
453 0.94%
464 8.02%
The compiler time overhead is similar with code size.
Reviewers: davidxl, mkuper, mzolotukhin, hfinkel, chandlerc
Reviewed By: hfinkel, chandlerc
Subscribers: mehdi_amini, zzheng, efriedma, haicheng, hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D28368
llvm-svn: 295538
Diffstat (limited to 'llvm/test/CodeGen')
0 files changed, 0 insertions, 0 deletions
