MIPS: Track storage types of instance variables.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 220d9fe0c7d929e6231be5e316c0fd778a13e2a8..301e92f23d4653b12c74030067544469fa2a8fbc 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -5135,6 +5135,18 @@ void MacroAssembler::CheckPageFlag(
 }
 
 
+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,