Rollback of r14587 in trunk branch.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 3fe46ffd7b05893967cd162fbefa54284c9c4faa..7a184d16cd340a002dcc765c2c41d03b41504b1d 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1305,8 +1305,8 @@ LInstruction* LChunkBuilder::DoBitwise(HBitwise* instr) {
     ASSERT(instr->left()->representation().IsInteger32());
     ASSERT(instr->right()->representation().IsInteger32());
 
-    LOperand* left = UseRegisterAtStart(instr->BetterLeftOperand());
-    LOperand* right = UseOrConstantAtStart(instr->BetterRightOperand());
+    LOperand* left = UseRegisterAtStart(instr->LeastConstantOperand());
+    LOperand* right = UseOrConstantAtStart(instr->MostConstantOperand());
     return DefineAsRegister(new(zone()) LBitI(left, right));
   } else {
     ASSERT(instr->representation().IsTagged());
@@ -1484,15 +1484,15 @@ LInstruction* LChunkBuilder::DoMul(HMul* instr) {
     ASSERT(instr->left()->representation().IsInteger32());
     ASSERT(instr->right()->representation().IsInteger32());
     LOperand* left;
-    LOperand* right = UseOrConstant(instr->BetterRightOperand());
+    LOperand* right = UseOrConstant(instr->MostConstantOperand());
     LOperand* temp = NULL;
     if (instr->CheckFlag(HValue::kBailoutOnMinusZero) &&
         (instr->CheckFlag(HValue::kCanOverflow) ||
         !right->IsConstantOperand())) {
-      left = UseRegister(instr->BetterLeftOperand());
+      left = UseRegister(instr->LeastConstantOperand());
       temp = TempRegister();
     } else {
-      left = UseRegisterAtStart(instr->BetterLeftOperand());
+      left = UseRegisterAtStart(instr->LeastConstantOperand());
     }
     LMulI* mul = new(zone()) LMulI(left, right, temp);
     if (instr->CheckFlag(HValue::kCanOverflow) ||
@@ -1602,8 +1602,8 @@ LInstruction* LChunkBuilder::DoAdd(HAdd* instr) {
   if (instr->representation().IsInteger32()) {
     ASSERT(instr->left()->representation().IsInteger32());
     ASSERT(instr->right()->representation().IsInteger32());
-    LOperand* left = UseRegisterAtStart(instr->BetterLeftOperand());
-    LOperand* right = UseOrConstantAtStart(instr->BetterRightOperand());
+    LOperand* left = UseRegisterAtStart(instr->LeastConstantOperand());
+    LOperand* right = UseOrConstantAtStart(instr->MostConstantOperand());
     LAddI* add = new(zone()) LAddI(left, right);
     LInstruction* result = DefineAsRegister(add);
     if (instr->CheckFlag(HValue::kCanOverflow)) {
@@ -1634,8 +1634,8 @@ LInstruction* LChunkBuilder::DoMathMinMax(HMathMinMax* instr) {
   if (instr->representation().IsInteger32()) {
     ASSERT(instr->left()->representation().IsInteger32());
     ASSERT(instr->right()->representation().IsInteger32());
-    left = UseRegisterAtStart(instr->BetterLeftOperand());
-    right = UseOrConstantAtStart(instr->BetterRightOperand());
+    left = UseRegisterAtStart(instr->LeastConstantOperand());
+    right = UseOrConstantAtStart(instr->MostConstantOperand());
   } else {
     ASSERT(instr->representation().IsDouble());
     ASSERT(instr->left()->representation().IsDouble());