ARM: Use ubfx and movw instructions to avoid a PC-relative load on

src/stub-cache.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 452 matching lines @@
   // The function can optionally (when save_at_depth !=
   // kInvalidProtoDepth) save the object at the given depth by moving
   // it to [esp + kPointerSize].
   Register CheckPrototypes(Handle<JSObject> object,
                            Register object_reg,
                            Handle<JSObject> holder,
                            Register holder_reg,
                            Register scratch1,
                            Register scratch2,
                            Handle<String> name,
-                           Label* miss) {
+                           Label* miss,
+                           bool fast_map_check = true) {
     return CheckPrototypes(object, object_reg, holder, holder_reg, scratch1,
-                           scratch2, name, kInvalidProtoDepth, miss);
+                           scratch2, name, kInvalidProtoDepth, miss, fast_map_check);
   }
 
   Register CheckPrototypes(Handle<JSObject> object,
                            Register object_reg,
                            Handle<JSObject> holder,
                            Register holder_reg,
                            Register scratch1,
                            Register scratch2,
                            Handle<String> name,
                            int save_at_depth,
-                           Label* miss);
+                           Label* miss,
+                           bool fast_map_check = true);
 
  protected:
   Handle<Code> GetCodeWithFlags(Code::Flags flags, const char* name);
   Handle<Code> GetCodeWithFlags(Code::Flags flags, Handle<String> name);
 
   MacroAssembler* masm() { return &masm_; }
   void set_failure(Failure* failure) { failure_ = failure; }
 
   void GenerateLoadField(Handle<JSObject> object,
                          Handle<JSObject> holder,
@@ skipping 361 matching lines @@
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_