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Fix a bug when inserting a libcall into a function with no other calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20999 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1428,7 +1428,8 @@ static void FindEarliestAdjCallStackUp(SDNode *Node, SDNode *&Found) {
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static SDNode *FindAdjCallStackUp(SDNode *Node) {
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if (Node->getOpcode() == ISD::ADJCALLSTACKUP)
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return Node;
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assert(!Node->use_empty() && "Could not find ADJCALLSTACKUP!");
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if (Node->use_empty())
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return 0; // No adjcallstackup
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if (Node->hasOneUse()) // Simple case, only has one user to check.
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return FindAdjCallStackUp(*Node->use_begin());
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@ -1484,7 +1485,8 @@ SDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node,
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SDNode *OutChain;
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SDOperand InChain = FindInputOutputChains(Node, OutChain,
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DAG.getEntryNode());
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// TODO. Link in chains.
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if (InChain.Val == 0)
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InChain = DAG.getEntryNode();
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TargetLowering::ArgListTy Args;
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for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) {
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