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Fix a bug when inserting a libcall into a function with no other calls.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20999 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-04-02 03:22:40 +00:00
parent d4b57286dc
commit f4b457987f
1 changed files with 4 additions and 2 deletions
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6
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -1428,7 +1428,8 @@ static void FindEarliestAdjCallStackUp(SDNode *Node, SDNode *&Found) {
static SDNode *FindAdjCallStackUp(SDNode *Node) {
if (Node->getOpcode() == ISD::ADJCALLSTACKUP)
return Node;
assert(!Node->use_empty() && "Could not find ADJCALLSTACKUP!");
if (Node->use_empty())
return 0; // No adjcallstackup
if (Node->hasOneUse()) // Simple case, only has one user to check.
return FindAdjCallStackUp(*Node->use_begin());
@ -1484,7 +1485,8 @@ SDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node,
SDNode *OutChain;
SDOperand InChain = FindInputOutputChains(Node, OutChain,
DAG.getEntryNode());
// TODO. Link in chains.
if (InChain.Val == 0)
InChain = DAG.getEntryNode();
TargetLowering::ArgListTy Args;
for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) {