Implement date library functions in C++.

src/arm/lithium-arm.h

 // 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 159 matching lines @@
   V(ToFastProperties)                           \
   V(TransitionElementsKind)                     \
   V(Typeof)                                     \
   V(TypeofIsAndBranch)                          \
   V(UnaryMathOperation)                         \
   V(UnknownOSRValue)                            \
   V(ValueOf)                                    \
   V(ForInPrepareMap)                            \
   V(ForInCacheArray)                            \
   V(CheckMapValue)                              \
-  V(LoadFieldByIndex)
-
+  V(LoadFieldByIndex)                           \
+  V(DateField)
 
 
 #define DECLARE_CONCRETE_INSTRUCTION(type, mnemonic)              \
   virtual Opcode opcode() const { return LInstruction::k##type; } \
   virtual void CompileToNative(LCodeGen* generator);              \
   virtual const char* Mnemonic() const { return mnemonic; }       \
   static L##type* cast(LInstruction* instr) {                     \
     ASSERT(instr->Is##type());                                    \
     return reinterpret_cast<L##type*>(instr);                     \
   }
@@ skipping 791 matching lines @@
   LValueOf(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
   DECLARE_HYDROGEN_ACCESSOR(ValueOf)
 };
 
 
+class LDateField: public LTemplateInstruction<1, 1, 1> {
+ public:
+  LDateField(LOperand* date, LOperand* temp, Smi* index) : index_(index) {

[rossberg, 2012/03/06 15:55:50]

Again, I'm not fond of using Smi here. I don't see the advantage. It's a static
parameter, so it should be turned into a proper static type as early as
possible.

[ulan, 2012/03/07 10:55:21]

Replied above (in full-codegen-arm.cc).

+    inputs_[0] = date;
+    temps_[0] = temp;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(ValueOf, "date-field")
+  DECLARE_HYDROGEN_ACCESSOR(ValueOf)
+  Smi* index() const { return index_; }
+
+ private:
+  Smi* index_;
+};
+
+
+class LSetDateField: public LTemplateInstruction<1, 2, 1> {
+ public:
+  LSetDateField(LOperand* date, LOperand* value, LOperand* temp, int index)
+      : index_(index) {
+    inputs_[0] = date;
+    inputs_[1] = value;
+    temps_[0] = temp;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(DateField, "date-set-field")
+  DECLARE_HYDROGEN_ACCESSOR(DateField)
+
+  int index() const { return index_; }
+
+ private:
+  int index_;
+};
+
+
 class LThrow: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LThrow(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Throw, "throw")
 };
 
 
@@ skipping 1345 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_LITHIUM_ARM_H_