PGO] PGOFuncName meta data if PGOFuncName is different from function's raw name

Write out the PGOFuncName meta data if PGOFuncName is different from function's
raw name. This should only apply to internal linkage functions. This is to be
consumed by indirect-call promotion when called in LTO optimization pass.

Differential Revision: http://reviews.llvm.org/D18624

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@267224 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CodeGenPGO.cpp b/lib/CodeGen/CodeGenPGO.cpp
index 7e89492f1c6ea8529911d0c62cda259325954b5a..43bc37c49f7d53b7a2af526d83c2c0d2621135f1 100644 (file)
--- a/lib/CodeGen/CodeGenPGO.cpp
+++ b/lib/CodeGen/CodeGenPGO.cpp
@@ -43,6 +43,8 @@ void CodeGenPGO::setFuncName(StringRef Name,
 
 void CodeGenPGO::setFuncName(llvm::Function *Fn) {
   setFuncName(Fn->getName(), Fn->getLinkage());
+  // Create PGOFuncName meta data.
+  llvm::createPGOFuncNameMetadata(*Fn, FuncName);
 }
 
 namespace {