Move IncrementalRecordWrite to a stub.

src/ia32/code-stubs-ia32.cc

 // 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 6635 matching lines @@
     __ bind(&done);
   }
 
   __ mov(external_pointer,
          FieldOperand(elements, PixelArray::kExternalPointerOffset));
   __ mov_b(Operand(external_pointer, untagged_key, times_1, 0), untagged_value);
   __ ret(0);  // Return value in eax.
 }
 
 
+void IncrementalMarkingRecordWriteStub::Generate(MacroAssembler* masm) {
+  if (IncrementalMarking::IsStopped()) {
+    __ ret(0);
+  } else {
+    __ nop();
+  }
+
+  __ IncrementalMarkingRecordWriteHelper(object_,
+                                         value_,
+                                         scratch_,
+                                         object_mode_,
+                                         value_mode_,
+                                         scratch_mode_);
+  __ ret(0);
+}
+
+
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32