diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index 708b458..4929852 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -235,12 +235,12 @@
     void eliminateMostlyEmptyBlock(BasicBlock *BB);
     bool isMergingEmptyBlockProfitable(BasicBlock *BB, BasicBlock *DestBB,
                                        bool isPreheader);
-    bool optimizeBlock(BasicBlock &BB, bool& ModifiedDT);
-    bool optimizeInst(Instruction *I, bool& ModifiedDT);
+    bool optimizeBlock(BasicBlock &BB, bool &ModifiedDT);
+    bool optimizeInst(Instruction *I, bool &ModifiedDT);
     bool optimizeMemoryInst(Instruction *I, Value *Addr,
                             Type *AccessTy, unsigned AS);
     bool optimizeInlineAsmInst(CallInst *CS);
-    bool optimizeCallInst(CallInst *CI, bool& ModifiedDT);
+    bool optimizeCallInst(CallInst *CI, bool &ModifiedDT);
     bool optimizeExt(Instruction *&I);
     bool optimizeExtUses(Instruction *I);
     bool optimizeLoadExt(LoadInst *I);
@@ -2253,7 +2253,7 @@
   return true;
 }
 
-bool CodeGenPrepare::optimizeCallInst(CallInst *CI, bool& ModifiedDT) {
+bool CodeGenPrepare::optimizeCallInst(CallInst *CI, bool &ModifiedDT) {
   BasicBlock *BB = CI->getParent();
 
   // Lower inline assembly if we can.
@@ -6037,7 +6037,7 @@
   return true;
 }
 
-bool CodeGenPrepare::optimizeInst(Instruction *I, bool& ModifiedDT) {
+bool CodeGenPrepare::optimizeInst(Instruction *I, bool &ModifiedDT) {
   // Bail out if we inserted the instruction to prevent optimizations from
   // stepping on each other's toes.
   if (InsertedInsts.count(I))
@@ -6192,7 +6192,7 @@
 // In this pass we look for GEP and cast instructions that are used
 // across basic blocks and rewrite them to improve basic-block-at-a-time
 // selection.
-bool CodeGenPrepare::optimizeBlock(BasicBlock &BB, bool& ModifiedDT) {
+bool CodeGenPrepare::optimizeBlock(BasicBlock &BB, bool &ModifiedDT) {
   SunkAddrs.clear();
   bool MadeChange = false;