[PGO] Refactor PGOFuncName meta data code to be used in clang

Refactor the code that gets and creates PGOFuncName meta data so that it can be
used in clang's value profile annotation.

Differential Revision: http://reviews.llvm.org/D18623

llvm-svn: 265149

1 files changed, 2 insertions, 8 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp b/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
index 50a65b9..5feeccb 100644
--- a/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
+++ b/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
@@ -752,14 +752,8 @@ void PGOUseFunc::annotateIndirectCallSites() {
   if (DisableValueProfiling)
     return;
 
-  // Write out the PGOFuncName if this is different from it's raw name.
-  // This should only apply to internal linkage functions only.
-  const std::string &FuncName = getPGOFuncName(F);
-  if (FuncName != F.getName()) {
-    LLVMContext &C = F.getContext();
-    MDNode *N = MDNode::get(C, MDString::get(C, FuncName.c_str()));
-    F.setMetadata("PGOFuncName", N);
-  }
+  // Create the PGOFuncName meta data.
+  createPGOFuncNameMetadata(F);
 
   unsigned IndirectCallSiteIndex = 0;
   PGOIndirectCallSiteVisitor ICV;