[llvm-commits] [llvm] r77179 - in /llvm/trunk/lib/Target/PIC16: PIC16ISelLowering.cpp PIC16ISelLowering.h

[Sanjiv Gupta]

Author: sgupta
Date: Sun Jul 26 21:44:46 2009
New Revision: 77179

URL: http://llvm.org/viewvc/llvm-project?rev=77179&view=rev
Log:
Generate a libcall for i8 multiply.

Modified:
    llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.cpp
    llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.h

Modified: llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.cpp?rev=77179&r1=77178&r2=77179&view=diff

==============================================================================
--- llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.cpp Sun Jul 26 21:44:46 2009
@@ -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:

Modified: llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.h?rev=77179&r1=77178&r2=77179&view=diff

==============================================================================
--- llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.h (original)
+++ llvm/trunk/lib/Target/PIC16/PIC16ISelLowering.h Sun Jul 26 21:44:46 2009
@@ -84,6 +84,7 @@
     virtual MVT getSetCCResultType(MVT ValType) const;
     SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
     SDValue LowerShift(SDValue Op, SelectionDAG &DAG);
+    SDValue LowerMUL(SDValue Op, SelectionDAG &DAG);
     SDValue LowerADD(SDValue Op, SelectionDAG &DAG);
     SDValue LowerSUB(SDValue Op, SelectionDAG &DAG);
     SDValue LowerBinOp(SDValue Op, SelectionDAG &DAG);