--- a/include/llvm/Analysis/LoopPass.h	Tue Jan 26 22:56:36 2016 +0900
+++ b/include/llvm/Analysis/LoopPass.h	Fri Nov 25 19:14:25 2016 +0900
@@ -88,9 +88,10 @@
   virtual void deleteAnalysisLoop(Loop *L) {}
 
 protected:
-  /// skipOptnoneFunction - Containing function has Attribute::OptimizeNone
-  /// and most transformation passes should skip it.
-  bool skipOptnoneFunction(const Loop *L) const;
+  /// Optional passes call this function to check whether the pass should be
+  /// skipped. This is the case when Attribute::OptimizeNone is set or when
+  /// optimization bisect is over the limit.
+  bool skipLoop(const Loop *L) const;
 };
 
 class LPPassManager : public FunctionPass, public PMDataManager {
@@ -106,9 +107,7 @@
   // LPPassManager needs LoopInfo.
   void getAnalysisUsage(AnalysisUsage &Info) const override;
 
-  const char *getPassName() const override {
-    return "Loop Pass Manager";
-  }
+  StringRef getPassName() const override { return "Loop Pass Manager"; }
 
   PMDataManager *getAsPMDataManager() override { return this; }
   Pass *getAsPass() override { return this; }
@@ -156,6 +155,22 @@
   Loop *CurrentLoop;
 };
 
+// This pass is required by the LCSSA transformation. It is used inside
+// LPPassManager to check if current pass preserves LCSSA form, and if it does
+// pass manager calls lcssa verification for the current loop.
+struct LCSSAVerificationPass : public FunctionPass {
+  static char ID;
+  LCSSAVerificationPass() : FunctionPass(ID) {
+    initializeLCSSAVerificationPassPass(*PassRegistry::getPassRegistry());
+  }
+
+  bool runOnFunction(Function &F) override { return false; }
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.setPreservesAll();
+  }
+};
+
 } // End llvm namespace
 
 #endif