1 files changed, 21 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
index ec87585e90..6876e9f94f 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
@@ -656,7 +656,7 @@ SDValue DAGTypeLegalizer::MakeLibCall(RTLIB::Libcall LC, MVT RetVT,
     Args.push_back(Entry);
   }
   SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC),
-                                           TLI.getPointerTy());
+                                         TLI.getPointerTy());
 
   const Type *RetTy = RetVT.getTypeForMVT();
   std::pair<SDValue,SDValue> CallInfo =
@@ -665,6 +665,26 @@ SDValue DAGTypeLegalizer::MakeLibCall(RTLIB::Libcall LC, MVT RetVT,
   return CallInfo.first;
 }
 
+/// LibCallify - Convert the node into a libcall with the same prototype.
+SDValue DAGTypeLegalizer::LibCallify(RTLIB::Libcall LC, SDNode *N,
+                                     bool isSigned) {
+  unsigned NumOps = N->getNumOperands();
+  if (NumOps == 0) {
+    return MakeLibCall(LC, N->getValueType(0), 0, 0, isSigned);
+  } else if (NumOps == 1) {
+    SDValue Op = N->getOperand(0);
+    return MakeLibCall(LC, N->getValueType(0), &Op, 1, isSigned);
+  } else if (NumOps == 2) {
+    SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) };
+    return MakeLibCall(LC, N->getValueType(0), Ops, 2, isSigned);
+  }
+  SmallVector<SDValue, 8> Ops(NumOps);
+  for (unsigned i = 0; i < NumOps; ++i)
+    Ops[i] = N->getOperand(i);
+
+  return MakeLibCall(LC, N->getValueType(0), &Ops[0], NumOps, isSigned);
+}
+
 SDValue DAGTypeLegalizer::GetVectorElementPointer(SDValue VecPtr, MVT EltVT,
                                                   SDValue Index) {
   // Make sure the index type is big enough to compute in.