Index: llvm/trunk/include/llvm/ProfileData/InstrProf.h
===================================================================
--- llvm/trunk/include/llvm/ProfileData/InstrProf.h
+++ llvm/trunk/include/llvm/ProfileData/InstrProf.h
@@ -253,7 +253,7 @@
 /// Create the PGOFuncName meta data if PGOFuncName is different from
 /// function's raw name. This should only apply to internal linkage functions
 /// declared by users only.
-void createPGOFuncNameMetadata(Function &F);
+void createPGOFuncNameMetadata(Function &F, const std::string &PGOFuncName);
 
 const std::error_category &instrprof_category();
 
Index: llvm/trunk/lib/ProfileData/InstrProf.cpp
===================================================================
--- llvm/trunk/lib/ProfileData/InstrProf.cpp
+++ llvm/trunk/lib/ProfileData/InstrProf.cpp
@@ -732,13 +732,15 @@
   return F.getMetadata(getPGOFuncNameMetadataName());
 }
 
-void createPGOFuncNameMetadata(Function &F) {
-  const std::string &FuncName = getPGOFuncName(F);
-  if (FuncName == F.getName())
+void createPGOFuncNameMetadata(Function &F, const std::string &PGOFuncName) {
+  // Only for internal linkage functions.
+  if (PGOFuncName == F.getName())
+      return;
+  // Don't create duplicated meta-data.
+  if (getPGOFuncNameMetadata(F))
     return;
-
   LLVMContext &C = F.getContext();
-  MDNode *N = MDNode::get(C, MDString::get(C, FuncName.c_str()));
+  MDNode *N = MDNode::get(C, MDString::get(C, PGOFuncName.c_str()));
   F.setMetadata(getPGOFuncNameMetadataName(), N);
 }
 
Index: llvm/trunk/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
===================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
+++ llvm/trunk/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
@@ -732,7 +732,7 @@
     return;
 
   // Create the PGOFuncName meta data.
-  createPGOFuncNameMetadata(F);
+  createPGOFuncNameMetadata(F, FuncInfo.FuncName);
 
   unsigned IndirectCallSiteIndex = 0;
   auto IndirectCallSites = findIndirectCallSites(F);