diff options
Diffstat (limited to 'llvm/lib/ProfileData')
| -rw-r--r-- | llvm/lib/ProfileData/InstrProf.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/ProfileData/InstrProf.cpp b/llvm/lib/ProfileData/InstrProf.cpp index a0400721166..dac91950183 100644 --- a/llvm/lib/ProfileData/InstrProf.cpp +++ b/llvm/lib/ProfileData/InstrProf.cpp @@ -136,6 +136,9 @@ std::string getPGOFuncName(StringRef RawFuncName, // (when \c InLTO is true): LTO's internalization privatizes many global linkage // symbols. This happens after value profile annotation, but those internal // linkage functions should not have a source prefix. +// Additionally, for ThinLTO mode, exported internal functions are promoted +// and renamed. We need to ensure that the original internal PGO name is +// used when computing the GUID that is compared against the profiled GUIDs. // To differentiate compiler generated internal symbols from original ones, // PGOFuncName meta data are created and attached to the original internal // symbols in the value profile annotation step |
