MIPS: Track storage types of instance variables.

src/mips/macro-assembler-mips.cc

 // Copyright 2012 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 5117 matching lines @@
     int mask,
     Condition cc,
     Label* condition_met) {
   And(scratch, object, Operand(~Page::kPageAlignmentMask));
   lw(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));
+    lw(scratch, FieldMemOperand(scratch, Map::kBitField3Offset));
+    And(scratch, scratch, Operand(Smi::FromInt(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.
   ASSERT(strcmp(Marking::kBlackBitPattern, "10") == 0);
 }
 
 
 void MacroAssembler::HasColor(Register object,
@@ skipping 351 matching lines @@
        opcode == BGTZL);
   opcode = (cond == eq) ? BEQ : BNE;
   instr = (instr & ~kOpcodeMask) | opcode;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS