Make whether or not a Code object should be created by masm explicit

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/register-configuration.h"
 #include "src/runtime/runtime.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64.h"
 
 namespace v8 {
 namespace internal {
 
 // Define a fake double underscore to use with the ASM_UNIMPLEMENTED macros.
 #define __
 
 
-MacroAssembler::MacroAssembler(Isolate* arg_isolate,
-                               byte * buffer,
-                               unsigned buffer_size)
+MacroAssembler::MacroAssembler(Isolate* arg_isolate, byte* buffer,
+                               unsigned buffer_size, bool create_code_object)
     : Assembler(arg_isolate, buffer, buffer_size),
       generating_stub_(false),
 #if DEBUG
       allow_macro_instructions_(true),
 #endif
       has_frame_(false),
       use_real_aborts_(true),
       sp_(jssp),
       tmp_list_(DefaultTmpList()),
       fptmp_list_(DefaultFPTmpList()) {
-  if (isolate() != NULL) {
+  if (create_code_object) {
     code_object_ =
         Handle<Object>::New(isolate()->heap()->undefined_value(), isolate());
   }
 }
 
 
 CPURegList MacroAssembler::DefaultTmpList() {
   return CPURegList(ip0, ip1);
 }
 
@@ skipping 5025 matching lines @@
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64