diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 245b38e0493..c209b1342f6 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -92,6 +92,7 @@ namespace llvm {
     bool isCall;
     bool isLoad;
     bool isStore;
+    bool isImplicitDef;
     bool isPredicable;
     bool isConvertibleToThreeAddress;
     bool isCommutable;
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index 4de05b2f83d..47bbecb87e9 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -384,6 +384,7 @@ CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
   isCall       = R->getValueAsBit("isCall");
   isLoad       = R->getValueAsBit("isLoad");
   isStore      = R->getValueAsBit("isStore");
+  isImplicitDef= R->getValueAsBit("isImplicitDef");
   bool isTwoAddress = R->getValueAsBit("isTwoAddress");
   isPredicable = R->getValueAsBit("isPredicable");
   isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index d371934bbbe..855a0f090ae 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -243,6 +243,7 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
   if (Inst.isCall)       OS << "|M_CALL_FLAG";
   if (Inst.isLoad)       OS << "|M_LOAD_FLAG";
   if (Inst.isStore || isStore) OS << "|M_STORE_FLAG";
+  if (Inst.isImplicitDef)OS << "|M_IMPLICIT_DEF_FLAG";
   if (Inst.isPredicable) OS << "|M_PREDICABLE";
   if (Inst.isConvertibleToThreeAddress) OS << "|M_CONVERTIBLE_TO_3_ADDR";
   if (Inst.isCommutable) OS << "|M_COMMUTABLE";