Version 3.5.3

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index dac22731a95b0ccf9d61da88af568aed8745a479..d79df5ea55e88facec05908a3e96f0339cf845da 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -209,6 +209,9 @@ class MacroAssembler: public Assembler {
   void SafeSet(Register dst, const Immediate& x);
   void SafePush(const Immediate& x);
 
+  // Compare a register against a known root, e.g. undefined, null, true, ...
+  void CompareRoot(Register with, Heap::RootListIndex index);
+
   // Compare object type for heap object.
   // Incoming register is heap_object and outgoing register is map.
   void CmpObjectType(Register heap_object, InstanceType type, Register map);