1 files changed, 15 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/TailDuplication.cpp b/llvm/lib/CodeGen/TailDuplication.cpp
index ba348b4a9d41..648bf48b7d17 100644
--- a/llvm/lib/CodeGen/TailDuplication.cpp
+++ b/llvm/lib/CodeGen/TailDuplication.cpp
@@ -12,12 +12,15 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Analysis/ProfileSummaryInfo.h"
+#include "llvm/CodeGen/LazyMachineBlockFrequencyInfo.h"
 #include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/TailDuplicator.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
 
 using namespace llvm;
@@ -37,6 +40,8 @@ public:
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<MachineBranchProbabilityInfo>();
+    AU.addRequired<LazyMachineBlockFrequencyInfoPass>();
+    AU.addRequired<ProfileSummaryInfoWrapperPass>();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 };
@@ -55,6 +60,11 @@ public:
   EarlyTailDuplicate() : TailDuplicateBase(ID, true) {
     initializeEarlyTailDuplicatePass(*PassRegistry::getPassRegistry());
   }
+
+  MachineFunctionProperties getClearedProperties() const override {
+    return MachineFunctionProperties()
+      .set(MachineFunctionProperties::Property::NoPHIs);
+  }
 };
 
 } // end anonymous namespace
@@ -74,7 +84,11 @@ bool TailDuplicateBase::runOnMachineFunction(MachineFunction &MF) {
     return false;
 
   auto MBPI = &getAnalysis<MachineBranchProbabilityInfo>();
-  Duplicator.initMF(MF, PreRegAlloc, MBPI, /*LayoutMode=*/false);
+  auto *PSI = &getAnalysis<ProfileSummaryInfoWrapperPass>().getPSI();
+  auto *MBFI = (PSI && PSI->hasProfileSummary()) ?
+               &getAnalysis<LazyMachineBlockFrequencyInfoPass>().getBFI() :
+               nullptr;
+  Duplicator.initMF(MF, PreRegAlloc, MBPI, MBFI, PSI, /*LayoutMode=*/false);
 
   bool MadeChange = false;
   while (Duplicator.tailDuplicateBlocks())