Optimize calls to object literal properties that are initialized with a funct...

src/hydrogen-instructions.h

 // Copyright 2011 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 138 matching lines @@
   V(StorePixelArrayElement)                    \
   V(StoreKeyedGeneric)                         \
   V(StoreNamedField)                           \
   V(StoreNamedGeneric)                         \
   V(StringCharCodeAt)                          \
   V(StringCharFromCode)                        \
   V(StringLength)                              \
   V(Sub)                                       \
   V(Test)                                      \
   V(Throw)                                     \
+  V(ToFastProperties)                          \
   V(Typeof)                                    \
   V(TypeofIs)                                  \
   V(UnaryMathOperation)                        \
   V(UnknownOSRValue)                           \
   V(ValueOf)
 
 #define GVN_FLAG_LIST(V)                       \
   V(Calls)                                     \
   V(InobjectFields)                            \
   V(BackingStoreFields)                        \
@@ skipping 3206 matching lines @@
   Handle<FixedArray> constant_elements_;
 };
 
 
 class HObjectLiteral: public HMaterializedLiteral<1> {
  public:
   HObjectLiteral(HValue* context,
                  Handle<FixedArray> constant_properties,
                  bool fast_elements,
                  int literal_index,
-                 int depth)
+                 int depth,
+                 bool has_function)
       : HMaterializedLiteral<1>(literal_index, depth),
         constant_properties_(constant_properties),
-        fast_elements_(fast_elements) {
+        fast_elements_(fast_elements),
+        has_function_(has_function) {
     SetOperandAt(0, context);
   }
 
   HValue* context() { return OperandAt(0); }
   Handle<FixedArray> constant_properties() const {
     return constant_properties_;
   }
   bool fast_elements() const { return fast_elements_; }
+  bool has_function() const { return has_function_; }
 
   virtual Representation RequiredInputRepresentation(int index) const {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ObjectLiteral, "object_literal")
 
  private:
   Handle<FixedArray> constant_properties_;
   bool fast_elements_;
+  bool has_function_;
 };
 
 
 class HRegExpLiteral: public HMaterializedLiteral<0> {
  public:
   HRegExpLiteral(Handle<String> pattern,
                  Handle<String> flags,
                  int literal_index)
       : HMaterializedLiteral<0>(literal_index, 0),
         pattern_(pattern),
@@ skipping 43 matching lines @@
   }
 
   virtual Representation RequiredInputRepresentation(int index) const {
     return Representation::Tagged();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(Typeof, "typeof")
 };
 
 
+class HToFastProperties: public HUnaryOperation {
+ public:
+  explicit HToFastProperties(HValue* value) : HUnaryOperation(value) {
+    // This instruction is not marked as having side effects, but
+    // changes the map of the input operand. Use it only when creating
+    // object literals.
+    ASSERT(value->IsObjectLiteral());
+    set_representation(Representation::Tagged());
+  }
+
+  virtual Representation RequiredInputRepresentation(int index) const {
+    return Representation::Tagged();
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(ToFastProperties, "to_fast_properties")
+};
+
+
 class HValueOf: public HUnaryOperation {
  public:
   explicit HValueOf(HValue* value) : HUnaryOperation(value) {
     set_representation(Representation::Tagged());
   }
 
   virtual Representation RequiredInputRepresentation(int index) const {
     return Representation::Tagged();
   }
 
@@ skipping 18 matching lines @@
   HValue* object() { return left(); }
   HValue* key() { return right(); }
 };
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_