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| author | Dehao Chen <dehao@google.com> | 2016-11-17 01:17:02 +0000 |
|---|---|---|
| committer | Dehao Chen <dehao@google.com> | 2016-11-17 01:17:02 +0000 |
| commit | 41d72a8632605ad9366b9bfcd12fe80a177b80ca (patch) | |
| tree | 8c52313d46859c2c91ec359ae6d57836f7e70379 /lldb/source/Core/StringList.cpp | |
| parent | 9103036f5ffadf7a881e8dca42ff862570d1e79f (diff) | |
| download | bcm5719-llvm-41d72a8632605ad9366b9bfcd12fe80a177b80ca.tar.gz bcm5719-llvm-41d72a8632605ad9366b9bfcd12fe80a177b80ca.zip | |
Use profile info to adjust loop unroll threshold.
Summary:
For flat loop, even if it is hot, it is not a good idea to unroll in runtime, thus we set a lower partial unroll threshold.
For hot loop, we set a higher unroll threshold and allows expensive tripcount computation to allow more aggressive unrolling.
Reviewers: davidxl, mzolotukhin
Subscribers: sanjoy, mehdi_amini, llvm-commits
Differential Revision: https://reviews.llvm.org/D26527
llvm-svn: 287186
Diffstat (limited to 'lldb/source/Core/StringList.cpp')
0 files changed, 0 insertions, 0 deletions
