Optimize the allocation of small, non-nested literal...

bleeding_edge/src/codegen.h

 // Copyright 2006-2008 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 245 matching lines @@
 
  private:
   int slots_;
 
   const char* GetName() { return "FastNewContextStub"; }
   Major MajorKey() { return FastNewContext; }
   int MinorKey() { return slots_; }
 };
 
 
+class FastCloneShallowArrayStub : public CodeStub {
+ public:
+  static const int kMaximumLength = 8;
+
+  explicit FastCloneShallowArrayStub(int length) : length_(length) {
+    ASSERT(length >= 0 && length <= kMaximumLength);
+  }
+
+  void Generate(MacroAssembler* masm);
+
+ private:
+  int length_;
+
+  const char* GetName() { return "FastCloneShallowArrayStub"; }
+  Major MajorKey() { return FastCloneShallowArray; }
+  int MinorKey() { return length_; }
+};
+
+
 class InstanceofStub: public CodeStub {
  public:
   InstanceofStub() { }
 
   void Generate(MacroAssembler* masm);
 
  private:
   Major MajorKey() { return Instanceof; }
   int MinorKey() { return 0; }
 };
@@ skipping 172 matching lines @@
     PrintF("ArgumentsAccessStub (type %d)\n", type_);
   }
 #endif
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODEGEN_H_