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Remove dead code. (S|U)MUL_LO is now lowered to LMUL or MACC(S|U)

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llvm-svn: 98269
This commit is contained in:
Richard Osborne 2010-03-11 18:38:59 +00:00
parent 239beb0e85
commit 8caa985467
1 changed files with 0 additions and 23 deletions
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23
lib/Target/XCore/XCoreISelDAGToDAG.cpp
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@ -173,29 +173,6 @@ SDNode *XCoreDAGToDAGISel::Select(SDNode *N) {
}
break;
}
case ISD::SMUL_LOHI: {
// FIXME fold addition into the macc instruction
SDValue Zero(CurDAG->getMachineNode(XCore::LDC_ru6, dl, MVT::i32,
CurDAG->getTargetConstant(0, MVT::i32)), 0);
SDValue Ops[] = { Zero, Zero, N->getOperand(0), N->getOperand(1) };
SDNode *ResNode = CurDAG->getMachineNode(XCore::MACCS_l4r, dl,
MVT::i32, MVT::i32, Ops, 4);
ReplaceUses(SDValue(N, 0), SDValue(ResNode, 1));
ReplaceUses(SDValue(N, 1), SDValue(ResNode, 0));
return NULL;
}
case ISD::UMUL_LOHI: {
// FIXME fold addition into the macc / lmul instruction
SDValue Zero(CurDAG->getMachineNode(XCore::LDC_ru6, dl, MVT::i32,
CurDAG->getTargetConstant(0, MVT::i32)), 0);
SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
Zero, Zero };
SDNode *ResNode = CurDAG->getMachineNode(XCore::LMUL_l6r, dl, MVT::i32,
MVT::i32, Ops, 4);
ReplaceUses(SDValue(N, 0), SDValue(ResNode, 1));
ReplaceUses(SDValue(N, 1), SDValue(ResNode, 0));
return NULL;
}
case XCoreISD::LADD: {
SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
N->getOperand(2) };