MIPS: make isolate accessible from returnvalue

src/mips/stub-cache-mips.cc

 // 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 1420 matching lines @@
   if (heap()->InNewSpace(callback->data())) {
     __ li(scratch3(), callback);
     __ lw(scratch3(), FieldMemOperand(scratch3(),
                                       ExecutableAccessorInfo::kDataOffset));
   } else {
     __ li(scratch3(), Handle<Object>(callback->data(), isolate()));
   }
   __ Subu(sp, sp, 5 * kPointerSize);
   __ sw(reg, MemOperand(sp, 4 * kPointerSize));
   __ sw(scratch3(), MemOperand(sp, 3 * kPointerSize));
-  __ li(scratch3(),
+  __ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex);
+  __ li(scratch4(),
         Operand(ExternalReference::isolate_address(isolate())));
-  __ LoadRoot(scratch4(), Heap::kUndefinedValueRootIndex);
   __ sw(scratch3(), MemOperand(sp, 2 * kPointerSize));
   __ sw(scratch4(), MemOperand(sp, 1 * kPointerSize));
   __ sw(name(), MemOperand(sp, 0 * kPointerSize));
 
   Address getter_address = v8::ToCData<Address>(callback->getter());
   bool returns_handle =
       !CallbackTable::ReturnsVoid(isolate(), getter_address);
 
   Register first_arg = returns_handle ? a1 : a0;
   Register second_arg = returns_handle ? a2 : a1;
@@ skipping 20 matching lines @@
   ApiFunction fun(getter_address);
   ExternalReference::Type type =
       returns_handle ?
           ExternalReference::DIRECT_GETTER_CALL :
           ExternalReference::DIRECT_GETTER_CALL_NEW;
 
   ExternalReference ref = ExternalReference(&fun, type, isolate());
   __ CallApiFunctionAndReturn(ref,
                               kStackUnwindSpace,
                               returns_handle,
-                              3);
+                              4);
 }
 
 
 void BaseLoadStubCompiler::GenerateLoadInterceptor(
     Register holder_reg,
     Handle<JSObject> object,
     Handle<JSObject> interceptor_holder,
     LookupResult* lookup,
     Handle<Name> name) {
   ASSERT(interceptor_holder->HasNamedInterceptor());
@@ skipping 2408 matching lines @@
     TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS