Improve FastCloneShallowArray/ObjectStubs with VFP copying on ARM

src/code-stubs.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 357 matching lines @@
   int slots_;
 
   Major MajorKey() { return FastNewBlockContext; }
   int MinorKey() { return slots_; }
 };
 
 
 class FastCloneShallowArrayStub : public CodeStub {
  public:
   // Maximum length of copied elements array.
-  static const int kMaximumClonedLength = 8;
+  static int MaximumClonedLength();
 
   enum Mode {
     CLONE_ELEMENTS,
     CLONE_DOUBLE_ELEMENTS,
     COPY_ON_WRITE_ELEMENTS,
     CLONE_ANY_ELEMENTS
   };
 
   FastCloneShallowArrayStub(Mode mode, int length)
       : mode_(mode),
         length_((mode == COPY_ON_WRITE_ELEMENTS) ? 0 : length) {
     ASSERT_GE(length_, 0);
-    ASSERT_LE(length_, kMaximumClonedLength);
+    ASSERT_LE(length_, MaximumClonedLength());
   }
 
   void Generate(MacroAssembler* masm);
 
  private:
   Mode mode_;
   int length_;
 
   Major MajorKey() { return FastCloneShallowArray; }
   int MinorKey() {
     ASSERT(mode_ == 0 || mode_ == 1 || mode_ == 2 || mode_ == 3);
     return length_ * 4 +  mode_;
   }
 };
 
 
 class FastCloneShallowObjectStub : public CodeStub {
  public:
   // Maximum number of properties in copied object.
-  static const int kMaximumClonedProperties = 6;
+  static int MaximumClonedProperties();
 
   explicit FastCloneShallowObjectStub(int length) : length_(length) {
     ASSERT_GE(length_, 0);
-    ASSERT_LE(length_, kMaximumClonedProperties);
+    ASSERT_LE(length_, MaximumClonedProperties());
   }
 
   void Generate(MacroAssembler* masm);
 
  private:
   int length_;
 
   Major MajorKey() { return FastCloneShallowObject; }
   int MinorKey() { return length_; }
 };
@@ skipping 744 matching lines @@
 
   // The current function entry hook.
   static FunctionEntryHook entry_hook_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileEntryHookStub);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_