diff --git a/utils/TableGen/CodeGenInstruction.cpp b/utils/TableGen/CodeGenInstruction.cpp
index b7968a0..d421fd0 100644
--- a/utils/TableGen/CodeGenInstruction.cpp
+++ b/utils/TableGen/CodeGenInstruction.cpp
@@ -101,6 +101,8 @@
   mayHaveSideEffects = R->getValueAsBit("mayHaveSideEffects");
   neverHasSideEffects = R->getValueAsBit("neverHasSideEffects");
   isAsCheapAsAMove = R->getValueAsBit("isAsCheapAsAMove");
+  hasExtraSrcRegAllocReq = R->getValueAsBit("hasExtraSrcRegAllocReq");
+  hasExtraDefRegAllocReq = R->getValueAsBit("hasExtraDefRegAllocReq");
   hasOptionalDef = false;
   isVariadic = false;
 
diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index f4afd5e..04506e9 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -106,6 +106,8 @@
     bool mayHaveSideEffects;
     bool neverHasSideEffects;
     bool isAsCheapAsAMove;
+    bool hasExtraSrcRegAllocReq;
+    bool hasExtraDefRegAllocReq;
     
     /// ParseOperandName - Parse an operand name like "$foo" or "$foo.bar",
     /// where $foo is a whole operand and $foo.bar refers to a suboperand.
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index c28180b..3a104ea 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -280,6 +280,8 @@
   if (Inst.isVariadic)         OS << "|(1<<TID::Variadic)";
   if (Inst.hasSideEffects)     OS << "|(1<<TID::UnmodeledSideEffects)";
   if (Inst.isAsCheapAsAMove)   OS << "|(1<<TID::CheapAsAMove)";
+  if (Inst.hasExtraSrcRegAllocReq) OS << "|(1<<TID::ExtraSrcRegAllocReq)";
+  if (Inst.hasExtraDefRegAllocReq) OS << "|(1<<TID::ExtraDefRegAllocReq)";
   OS << ", 0";
 
   // Emit all of the target-specific flags...