diff options
| author | Adam Nemet <anemet@apple.com> | 2016-03-28 18:29:36 +0000 |
|---|---|---|
| committer | Adam Nemet <anemet@apple.com> | 2016-03-28 18:29:36 +0000 |
| commit | 51e5416001e0345b14047a0f22c1cc2b246f3a4f (patch) | |
| tree | 2e8fb402e25192d73599b10f1a9adc4a2dc962ec /lib/profile/InstrProfData.inc | |
| parent | f66c15c163a7d89ea6d4cf409e50ca1281fab80d (diff) | |
[PGO] Comment how function pointers for indirect calls are mapped to function names
Summary:
Hopefully this will make it easier for the next person to figure all
this out...
Reviewers: bogner, davidxl
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D18490
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@264612 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/profile/InstrProfData.inc')
| -rw-r--r-- | lib/profile/InstrProfData.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/profile/InstrProfData.inc b/lib/profile/InstrProfData.inc index 1bd941cdb..c758cd7cd 100644 --- a/lib/profile/InstrProfData.inc +++ b/lib/profile/InstrProfData.inc @@ -73,6 +73,8 @@ INSTR_PROF_DATA(const uint64_t, llvm::Type::getInt64Ty(Ctx), FuncHash, \ INSTR_PROF_DATA(const IntPtrT, llvm::Type::getInt64PtrTy(Ctx), CounterPtr, \ ConstantExpr::getBitCast(CounterPtr, \ llvm::Type::getInt64PtrTy(Ctx))) +// This is used to map function pointers for the indirect call targets to +// function name hashes during the conversion from raw to merged profile data. INSTR_PROF_DATA(const IntPtrT, llvm::Type::getInt8PtrTy(Ctx), FunctionPointer, \ FunctionAddr) INSTR_PROF_DATA(IntPtrT, llvm::Type::getInt8PtrTy(Ctx), Values, \ |