New class for Date objects: caches individual date components.

src/ia32/lithium-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1630 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoValueOf(HValueOf* instr) {
   LOperand* object = UseRegister(instr->value());
   LValueOf* result = new(zone()) LValueOf(object, TempRegister());
   return DefineSameAsFirst(result);
 }
 
 
+LInstruction* LChunkBuilder::DoDateField(HDateField* instr) {
+  LOperand* date = UseRegister(instr->value());
+  LDateField* result =
+      new(zone()) LDateField(date, TempRegister(), instr->index());
+  return DefineSameAsFirst(result);
+}
+
+
+LInstruction* LChunkBuilder::DoSetDateField(HSetDateField* instr) {
+  LOperand* date = UseRegister(instr->OperandAt(1));
+  LOperand* value = UseRegister(instr->OperandAt(2));
+  LSetDateField* result =
+      new(zone()) LSetDateField(date, value, TempRegister(), instr->index());
+  return DefineAsRegister(result);
+}
+
+
 LInstruction* LChunkBuilder::DoBoundsCheck(HBoundsCheck* instr) {
   return AssignEnvironment(new(zone()) LBoundsCheck(
       UseRegisterOrConstantAtStart(instr->index()),
       UseAtStart(instr->length())));
 }
 
 
 LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
   // The control instruction marking the end of a block that completed
   // abruptly (e.g., threw an exception).  There is nothing specific to do.
@@ skipping 748 matching lines @@
   LOperand* key = UseOrConstantAtStart(instr->key());
   LOperand* object = UseOrConstantAtStart(instr->object());
   LIn* result = new(zone()) LIn(context, key, object);
   return MarkAsCall(DefineFixed(result, eax), instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32