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| author | Hiroshi Yamauchi <yamauchi@google.com> | 2019-04-15 16:49:00 +0000 |
|---|---|---|
| committer | Hiroshi Yamauchi <yamauchi@google.com> | 2019-04-15 16:49:00 +0000 |
| commit | 09e539fcaebb6362795d352cdcf4a818cf4d0d6a (patch) | |
| tree | a91b7d07d85c67b737db8e49e3f62f95dd512898 /llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp | |
| parent | 64041d7b90714aa6f0542c64ec5bb327beecfc58 (diff) | |
| download | bcm5719-llvm-09e539fcaebb6362795d352cdcf4a818cf4d0d6a.tar.gz bcm5719-llvm-09e539fcaebb6362795d352cdcf4a818cf4d0d6a.zip | |
[PGO] Profile guided code size optimization.
Summary:
Enable some of the existing size optimizations for cold code under PGO.
A ~5% code size saving in big internal app under PGO.
The way it gets BFI/PSI is discussed in the RFC thread
http://lists.llvm.org/pipermail/llvm-dev/2019-March/130894.html
Note it doesn't currently touch loop passes.
Reviewers: davidxl, eraman
Reviewed By: eraman
Subscribers: mgorny, javed.absar, smeenai, mehdi_amini, eraman, zzheng, steven_wu, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59514
llvm-svn: 358422
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp')
0 files changed, 0 insertions, 0 deletions
