Implement date library functions in C++.

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 b921250235c0b7f83dafc89b9aa3c108f858b2f3..36421d9bd3cf00056a7a9fbc1d24d4a856d6613e 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1603,18 +1603,9 @@ LInstruction* LChunkBuilder::DoValueOf(HValueOf* instr) {
 
 
 LInstruction* LChunkBuilder::DoDateField(HDateField* instr) {
-  LOperand* object = UseRegister(instr->value());
-  LDateField* result = new LDateField(object, TempRegister(), instr->index());
-  return DefineAsRegister(result);
-}
-
-
-LInstruction* LChunkBuilder::DoSetDateField(HSetDateField* instr) {
-  LOperand* date = UseTempRegister(instr->OperandAt(1));
-  LOperand* value = UseTempRegister(instr->OperandAt(2));
-  LSetDateField* result =
-      new LSetDateField(date, value, TempRegister(), instr->index());
-  return DefineAsRegister(result);
+  LOperand* object = UseFixed(instr->value(), r0);
+  LDateField* result = new LDateField(object, FixedTemp(r1), instr->index());
+  return MarkAsCall(DefineFixed(result, r0), instr);
 }