Generate a libcall for i8 multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77179 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16ISelLowering.cpp b/lib/Target/PIC16/PIC16ISelLowering.cpp
index 5949b7b..13d9654 100644
--- a/lib/Target/PIC16/PIC16ISelLowering.cpp
+++ b/lib/Target/PIC16/PIC16ISelLowering.cpp
@@ -928,6 +928,19 @@
return Call;
}
+SDValue PIC16TargetLowering::LowerMUL(SDValue Op, SelectionDAG &DAG) {
+ // We should have handled larger operands in type legalizer itself.
+ assert (Op.getValueType() == MVT::i8 && "illegal multiply to lower");
+
+ SDNode *N = Op.getNode();
+ SmallVector<SDValue, 2> Ops(2);
+ Ops[0] = N->getOperand(0);
+ Ops[1] = N->getOperand(1);
+ SDValue Call = MakePIC16Libcall(PIC16ISD::MUL_I8, N->getValueType(0),
+ &Ops[0], 2, true, DAG, N->getDebugLoc());
+ return Call;
+}
+
void
PIC16TargetLowering::LowerOperationWrapper(SDNode *N,
SmallVectorImpl<SDValue>&Results,
@@ -975,6 +988,8 @@
return ExpandLoad(Op.getNode(), DAG);
case ISD::STORE:
return ExpandStore(Op.getNode(), DAG);
+ case ISD::MUL:
+ return LowerMUL(Op, DAG);
case ISD::SHL:
case ISD::SRA:
case ISD::SRL: