First part of lithium ARM port.

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 9c8e8348f15a1ea75e68c4f601e9e89d2e2e9b70..589a47c958602ccbe8006beef875328b933d96d2 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1295,12 +1295,8 @@ LInstruction* LChunkBuilder::DoCompareMapAndBranch(
     HCompareMapAndBranch* instr) {
   ASSERT(instr->value()->representation().IsTagged());
   LOperand* value = UseRegisterAtStart(instr->value());
-  HBasicBlock* first = instr->FirstSuccessor();
-  HBasicBlock* second = instr->SecondSuccessor();
-  return new LCmpMapAndBranch(value,
-                              instr->map(),
-                              first->block_id(),
-                              second->block_id());
+  LOperand* temp = TempRegister();
+  return new LCmpMapAndBranch(value, temp);
 }
 
 
@@ -1370,6 +1366,9 @@ LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
       return AssignEnvironment(DefineAsRegister(result));
     case kMathSqrt:
       return DefineSameAsFirst(result);
+    case kMathRound:
+      Abort("MathRound LUnaryMathOperation not implemented");
+      return NULL;
     case kMathPowHalf:
       Abort("MathPowHalf LUnaryMathOperation not implemented");
       return NULL;
@@ -1774,9 +1773,11 @@ LInstruction* LChunkBuilder::DoCheckInstanceType(HCheckInstanceType* instr) {
 
 
 LInstruction* LChunkBuilder::DoCheckPrototypeMaps(HCheckPrototypeMaps* instr) {
-  LOperand* temp = TempRegister();
+  LOperand* temp1 = TempRegister();
+  LOperand* temp2 = TempRegister();
   LInstruction* result =
-      new LCheckPrototypeMaps(temp,
+      new LCheckPrototypeMaps(temp1,
+                              temp2,
                               instr->holder(),
                               instr->receiver_map());
   return AssignEnvironment(result);