ARM: Optimize stubs for incremental marking.

src/arm/macro-assembler-arm.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 167 matching lines @@
   // Record in the remembered set the fact that we have a pointer to new space
   // at the address pointed to by the addr register.  Only works if addr is not
   // in new space.
   void RememberedSetHelper(Register addr,
                            Register scratch,
                            SaveFPRegsMode save_fp,
                            RememberedSetFinalAction and_then);
 
   void CheckPageFlag(Register object,
                      Register scratch,
-                     MemoryChunk::MemoryChunkFlags flag,
+                     int mask,
                      Condition cc,
                      Label* condition_met);
 
   // Check if object is in new space.  Jumps if the object is not in new space.
   // The register scratch can be object itself, but it will be clobbered.
   void JumpIfNotInNewSpace(Register object,
                            Register scratch,
                            Label* branch) {
     InNewSpace(object, scratch, ne, branch);
   }
@@ skipping 20 matching lines @@
                    Label* on_black);
 
   // Checks the color of an object.  If the object is already grey or black
   // then we just fall through, since it is already live.  If it is white and
   // we can determine that it doesn't need to be scanned, then we just mark it
   // black and fall through.  For the rest we jump to the label so the
   // incremental marker can fix its assumptions.
   void EnsureNotWhite(Register object,
                       Register scratch1,
                       Register scratch2,
-                      Label* object_is_white_and_not_data,
-                      Label::Distance distance);
+                      Register scratch3,
+                      Label* object_is_white_and_not_data);
 
   // Detects conservatively whether an object is data-only, ie it does need to
   // be scanned by the garbage collector.
   void JumpIfDataObject(Register value,
                         Register scratch,
                         Label* not_data_object);
 
   // Notify the garbage collector that we wrote a pointer into an object.
   // |object| is the object being stored into, |value| is the object being
   // stored.  value and scratch registers are clobbered by the operation.
@@ skipping 1000 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_