MIPS: Use weak cells to embed maps in store handler.

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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS64
 
@@ skipping 5835 matching lines @@
     int mask,
     Condition cc,
     Label* condition_met) {
   And(scratch, object, Operand(~Page::kPageAlignmentMask));
   ld(scratch, MemOperand(scratch, MemoryChunk::kFlagsOffset));
   And(scratch, scratch, Operand(mask));
   Branch(condition_met, cc, scratch, Operand(zero_reg));
 }
 
 
-void MacroAssembler::CheckMapDeprecated(Handle<Map> map,
-                                        Register scratch,
-                                        Label* if_deprecated) {
-  if (map->CanBeDeprecated()) {
-    li(scratch, Operand(map));
-    ld(scratch, FieldMemOperand(scratch, Map::kBitField3Offset));
-    And(scratch, scratch, Operand(Map::Deprecated::kMask));
-    Branch(if_deprecated, ne, scratch, Operand(zero_reg));
-  }
-}
-
-
 void MacroAssembler::JumpIfBlack(Register object,
                                  Register scratch0,
                                  Register scratch1,
                                  Label* on_black) {
   HasColor(object, scratch0, scratch1, on_black, 1, 0);  // kBlackBitPattern.
   DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
 }
 
 
 void MacroAssembler::HasColor(Register object,
@@ skipping 453 matching lines @@
   }
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS64