Implement inlining of instanceof tests on ARM.

src/arm/macro-assembler-arm.h

 // Copyright 2010 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 78 matching lines @@
   void Jump(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al);
   void Call(Register target, Condition cond = al);
   void Call(byte* target, RelocInfo::Mode rmode, Condition cond = al);
   void Call(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al);
   void Ret(Condition cond = al);
 
   // Emit code to discard a non-negative number of pointer-sized elements
   // from the stack, clobbering only the sp register.
   void Drop(int count, Condition cond = al);
 
+  void Ret(int drop, Condition cond = al);
 
   // Swap two registers.  If the scratch register is omitted then a slightly
   // less efficient form using xor instead of mov is emitted.
   void Swap(Register reg1,
             Register reg2,
             Register scratch = no_reg,
             Condition cond = al);
 
 
   void And(Register dst, Register src1, const Operand& src2,
@@ skipping 182 matching lines @@
   // Invoke the JavaScript function in the given register. Changes the
   // current context to the context in the function before invoking.
   void InvokeFunction(Register function,
                       const ParameterCount& actual,
                       InvokeFlag flag);
 
   void InvokeFunction(JSFunction* function,
                       const ParameterCount& actual,
                       InvokeFlag flag);
 
+  void IsObjectJSObjectType(Register heap_object,
+                            Register map,
+                            Register scratch,
+                            Label* fail);
+
+  void IsInstanceJSObjectType(Register map,
+                              Register scratch,
+                              Label* fail);
+
+  void IsObjectJSStringType(Register object,
+                            Register scratch,
+                            Label* fail);
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // ---------------------------------------------------------------------------
   // Debugger Support
 
   void DebugBreak();
 #endif
 
   // ---------------------------------------------------------------------------
   // Exception handling
@@ skipping 495 matching lines @@
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_