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| author | Dehao Chen <dehao@google.com> | 2016-12-16 16:48:46 +0000 |
|---|---|---|
| committer | Dehao Chen <dehao@google.com> | 2016-12-16 16:48:46 +0000 |
| commit | 7e4360079c8a8212bf7a4e24916a91a601d5e46f (patch) | |
| tree | 30a59d929cecbd1a48cbb21d52dc4e89ed3f7c03 /lib/LTO/LTO.cpp | |
| parent | 1c91fb4936aab5a7b096b606ad97e3a5c39b6e6d (diff) | |
Pass sample pgo flags to thinlto.
Summary: ThinLTO needs to invoke SampleProfileLoader pass during link time in order to annotate profile correctly after module importing.
Reviewers: davidxl, mehdi_amini, tejohnson
Subscribers: pcc, davide, llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D27790
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289957 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/LTO/LTO.cpp')
| -rw-r--r-- | lib/LTO/LTO.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/LTO/LTO.cpp b/lib/LTO/LTO.cpp index 74de6c18aef..09198591da9 100644 --- a/lib/LTO/LTO.cpp +++ b/lib/LTO/LTO.cpp @@ -129,6 +129,12 @@ static void computeCacheKey( ArrayRef<uint8_t>((const uint8_t *)&Linkage, sizeof(Linkage))); } + if (!Conf.SampleProfile.empty()) { + auto FileOrErr = MemoryBuffer::getFile(Conf.SampleProfile); + if (FileOrErr) + Hasher.update(FileOrErr.get()->getBuffer()); + } + Key = toHex(Hasher.result()); } |