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Implement legalize of call nodes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19617 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-16 19:46:48 +00:00
parent 7bd1ede776
commit 8ac532c55e
1 changed files with 17 additions and 3 deletions
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20
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -907,9 +907,6 @@ SDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) {
std::cerr << "NODE: "; Node->dump(); std::cerr << "\n";
assert(0 && "Do not know how to promote this operator!");
abort();
case ISD::CALL:
assert(0 && "Target's LowerCallTo implementation is buggy, returning value"
" types that are not supported by the target!");
case ISD::Constant:
Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op);
assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?");
@ -1092,6 +1089,23 @@ SDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) {
Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1
Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2, Tmp3);
break;
case ISD::CALL: {
Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the callee.
assert(Node->getNumValues() == 2 && Op.ResNo == 0 &&
"Can only promote single result calls");
std::vector<MVT::ValueType> RetTyVTs;
RetTyVTs.reserve(2);
RetTyVTs.push_back(NVT);
RetTyVTs.push_back(MVT::Other);
SDNode *NC = DAG.getCall(RetTyVTs, Tmp1, Tmp2);
Result = SDOperand(NC, 0);
// Insert the new chain mapping.
AddLegalizedOperand(Op.getValue(1), Result.getValue(1));
break;
}
}
assert(Result.Val && "Didn't set a result!");