[heap] Move to page lookups for SemiSpace, NewSpace, and Heap containment methods

src/mips/macro-assembler-mips.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_MIPS
 
 #include "src/base/bits.h"
@@ skipping 141 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);
-  And(scratch, object, Operand(ExternalReference::new_space_mask(isolate())));
-  Branch(branch, cc, scratch,
-         Operand(ExternalReference::new_space_start(isolate())));
+  const int mask =
+      1 << MemoryChunk::IN_FROM_SPACE | 1 << MemoryChunk::IN_TO_SPACE;
+  CheckPageFlag(object, scratch, mask, 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 5660 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_MIPS