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Fix an infinite loop I caused by making sure to legalize the flag operand

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of CALLSEQ_* nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25582 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-01-24 05:48:21 +00:00
parent 1e326009fa
commit 6a5428934b
2 changed files with 22 additions and 1 deletions
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13
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@@ -1276,6 +1276,19 @@ void SDNode::setAdjCallChain(SDOperand N) {
OperandList[0].Val->Uses.push_back(this);
}
// setAdjCallFlag - This method changes the flag input of an
// CALLSEQ_START/END node to be the specified operand.
void SDNode::setAdjCallFlag(SDOperand N) {
assert(N.getValueType() == MVT::Flag);
assert((getOpcode() == ISD::CALLSEQ_START ||
getOpcode() == ISD::CALLSEQ_END) && "Cannot adjust this node!");
SDOperand &FlagOp = OperandList[getNumOperands()-1];
assert(FlagOp.getValueType() == MVT::Flag);
FlagOp.Val->removeUser(this);
FlagOp = N;
FlagOp.Val->Uses.push_back(this);
}
SDOperand SelectionDAG::getLoad(MVT::ValueType VT,