Index: llvm/trunk/include/llvm/Analysis/CodeMetrics.h
===================================================================
--- llvm/trunk/include/llvm/Analysis/CodeMetrics.h
+++ llvm/trunk/include/llvm/Analysis/CodeMetrics.h
@@ -87,7 +87,7 @@
 
   /// \brief Add information about a block to the current state.
   void analyzeBasicBlock(const BasicBlock *BB, const TargetTransformInfo &TTI,
-                         SmallPtrSetImpl<const Value*> &EphValues);
+                         const SmallPtrSetImpl<const Value*> &EphValues);
 
   /// \brief Collect a loop's ephemeral values (those used only by an assume
   /// or similar intrinsics in the loop).
Index: llvm/trunk/lib/Analysis/CodeMetrics.cpp
===================================================================
--- llvm/trunk/lib/Analysis/CodeMetrics.cpp
+++ llvm/trunk/lib/Analysis/CodeMetrics.cpp
@@ -104,7 +104,7 @@
 /// block.
 void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
                                     const TargetTransformInfo &TTI,
-                                    SmallPtrSetImpl<const Value*> &EphValues) {
+                                    const SmallPtrSetImpl<const Value*> &EphValues) {
   ++NumBlocks;
   unsigned NumInstsBeforeThisBB = NumInsts;
   for (const Instruction &I : *BB) {