--- a/lib/CodeGen/ScheduleDAGInstrs.cpp	Fri Feb 16 19:10:49 2018 +0900
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp	Sat Feb 17 09:57:20 2018 +0900
@@ -21,7 +21,7 @@
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/ValueTracking.h"
-#include "llvm/CodeGen/LiveIntervalAnalysis.h"
+#include "llvm/CodeGen/LiveIntervals.h"
 #include "llvm/CodeGen/LivePhysRegs.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
@@ -36,6 +36,8 @@
 #include "llvm/CodeGen/ScheduleDAG.h"
 #include "llvm/CodeGen/ScheduleDFS.h"
 #include "llvm/CodeGen/SlotIndexes.h"
+#include "llvm/CodeGen/TargetRegisterInfo.h"
+#include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Instruction.h"
@@ -52,8 +54,6 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Target/TargetSubtargetInfo.h"
 #include <algorithm>
 #include <cassert>
 #include <iterator>
@@ -114,7 +114,7 @@
     : ScheduleDAG(mf), MLI(mli), MFI(mf.getFrameInfo()),
       RemoveKillFlags(RemoveKillFlags),
       UnknownValue(UndefValue::get(
-                             Type::getVoidTy(mf.getFunction()->getContext()))) {
+                             Type::getVoidTy(mf.getFunction().getContext()))) {
   DbgValues.clear();
 
   const TargetSubtargetInfo &ST = mf.getSubtarget();
@@ -776,7 +776,8 @@
       if (PDiffs != nullptr)
         PDiffs->addInstruction(SU->NodeNum, RegOpers, MRI);
 
-      RPTracker->recedeSkipDebugValues();
+      if (RPTracker->getPos() == RegionEnd || &*RPTracker->getPos() != &MI)
+        RPTracker->recedeSkipDebugValues();
       assert(&*RPTracker->getPos() == &MI && "RPTracker in sync");
       RPTracker->recede(RegOpers);
     }
@@ -1043,7 +1044,7 @@
 }
 
 void ScheduleDAGInstrs::fixupKills(MachineBasicBlock &MBB) {
-  DEBUG(dbgs() << "Fixup kills for BB#" << MBB.getNumber() << '\n');
+  DEBUG(dbgs() << "Fixup kills for " << printMBBReference(MBB) << '\n');
 
   LiveRegs.init(*TRI);
   LiveRegs.addLiveOuts(MBB);
@@ -1098,6 +1099,7 @@
   // Cannot completely remove virtual function even in release mode.
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
   SU->getInstr()->dump();
+  dbgs() << '\n';
 #endif
 }