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| author | Arthur Eubanks <aeubanks@google.com> | 2024-02-12 15:52:08 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-02-12 14:52:08 -0800 |
| commit | 93cdd1b5cfa3735c599949b77e24dbfbe570441a (patch) | |
| tree | 857248ba9ec00353b68ba375031402ab3bd4f864 /llvm/lib/Object/COFFImportFile.cpp | |
| parent | 13d60ce2f262ef9055389908b63824e53b3054a1 (diff) | |
| download | llvm-93cdd1b5cfa3735c599949b77e24dbfbe570441a.zip llvm-93cdd1b5cfa3735c599949b77e24dbfbe570441a.tar.gz llvm-93cdd1b5cfa3735c599949b77e24dbfbe570441a.tar.bz2 | |
[PGO] Add ability to mark cold functions as optsize/minsize/optnone (#69030)
The performance of cold functions shouldn't matter too much, so if we
care about binary sizes, add an option to mark cold functions as
optsize/minsize for binary size, or optnone for compile times [1]. Clang
patch will be in a future patch.
This is intended to replace `shouldOptimizeForSize(Function&, ...)`.
We've seen multiple cases where calls to this expensive function, if not
careful, can blow up compile times. I will clean up users of that
function in a followup patch.
Initial version: https://reviews.llvm.org/D149800
[1]
https://discourse.llvm.org/t/rfc-new-feature-proposal-de-optimizing-cold-functions-using-pgo-info/56388
Diffstat (limited to 'llvm/lib/Object/COFFImportFile.cpp')
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