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Adjust to CopyFromReg changes, implement deletion of truncating/extending

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stores/loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-01-14 22:38:01 +00:00
parent 7f2afac1dc
commit 69a52155d2
3 changed files with 38 additions and 6 deletions
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lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+24 -1
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@@ -220,6 +220,29 @@ void SelectionDAG::DeleteNodeIfDead(SDNode *N, void *NodeSet) {
N->getOperand(1)),
cast<SetCCSDNode>(N)->getCondition()));
break;
case ISD::TRUNCSTORE: {
EVTStruct NN;
NN.Opcode = ISD::TRUNCSTORE;
NN.VT = N->getValueType(0);
NN.EVT = cast<MVTSDNode>(N)->getExtraValueType();
NN.Ops.push_back(N->getOperand(0));
NN.Ops.push_back(N->getOperand(1));
NN.Ops.push_back(N->getOperand(2));
MVTSDNodes.erase(NN);
break;
}
case ISD::EXTLOAD:
case ISD::SEXTLOAD:
case ISD::ZEXTLOAD: {
EVTStruct NN;
NN.Opcode = N->getOpcode();
NN.VT = N->getValueType(0);
NN.EVT = cast<MVTSDNode>(N)->getExtraValueType();
NN.Ops.push_back(N->getOperand(0));
NN.Ops.push_back(N->getOperand(1));
MVTSDNodes.erase(NN);
break;
}
default:
if (N->getNumOperands() == 1)
UnaryOps.erase(std::make_pair(N->getOpcode(),
@@ -861,7 +884,7 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,SDOperand N1,
SDNode *&N = MVTSDNodes[NN];
if (N) return SDOperand(N, 0);
N = new MVTSDNode(Opcode, VT, N1, N2, EVT);
N = new MVTSDNode(Opcode, VT, MVT::Other, N1, N2, EVT);
AllNodes.push_back(N);
return SDOperand(N, 0);
}