[heap] MemoryChunk cleanup

src/mips64/macro-assembler-mips64.cc

 // Copyright 2012 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.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
@@ skipping 182 matching lines @@
   int register_offset = SafepointRegisterStackIndex(reg.code()) * kPointerSize;
   return MemOperand(sp, doubles_size + register_offset);
 }
 
 
 void MacroAssembler::InNewSpace(Register object,
                                 Register scratch,
                                 Condition cc,
                                 Label* branch) {
   DCHECK(cc == eq || cc == ne);
-  const int mask =
-      1 << MemoryChunk::IN_FROM_SPACE | 1 << MemoryChunk::IN_TO_SPACE;
-  CheckPageFlag(object, scratch, mask, cc, branch);
+  CheckPageFlag(object, scratch, MemoryChunk::kIsInNewSpaceMask, cc, branch);
 }
 
 
 // Clobbers object, dst, value, and ra, if (ra_status == kRAHasBeenSaved)
 // The register 'object' contains a heap object pointer.  The heap object
 // tag is shifted away.
 void MacroAssembler::RecordWriteField(
     Register object,
     int offset,
     Register value,
@@ skipping 7193 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64