Index: include/llvm/Transforms/IPO/PassManagerBuilder.h
===================================================================
--- include/llvm/Transforms/IPO/PassManagerBuilder.h
+++ include/llvm/Transforms/IPO/PassManagerBuilder.h
@@ -149,6 +149,8 @@
   std::string PGOInstrGen;
   /// Path of the profile data file.
   std::string PGOInstrUse;
+  /// Path of the sample Profile data file.
+  std::string PGOSampleUse;
 
 private:
   /// ExtensionList - This is list of all of the extensions that are registered.
Index: lib/Transforms/IPO/PassManagerBuilder.cpp
===================================================================
--- lib/Transforms/IPO/PassManagerBuilder.cpp
+++ lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -383,6 +383,11 @@
 
 void PassManagerBuilder::populateModulePassManager(
     legacy::PassManagerBase &MPM) {
+  if (!PGOSampleUse.empty()) {
+    MPM.add(createPruneEHPass());
+    MPM.add(createSampleProfileLoaderPass(PGOSampleUse));
+  }
+
   // Allow forcing function attributes as a debugging and tuning aid.
   MPM.add(createForceFunctionAttrsLegacyPass());