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Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13080 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -120,14 +120,18 @@ bool Inliner::runOnSCC(const std::vector<CallGraphNode*> &SCC) {
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(Callee->hasInternalLinkage() || Callee->hasLinkOnceLinkage())) {
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DEBUG(std::cerr << " -> Deleting dead function: "
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<< Callee->getName() << "\n");
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std::set<Function*>::iterator I = SCCFunctions.find(Callee);
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if (I != SCCFunctions.end()) // Remove function from this SCC.
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SCCFunctions.erase(I);
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SCCFunctions.erase(Callee); // Remove function from this SCC.
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// Remove any call graph edges from the callee to its callees.
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while (CalleeNode->begin() != CalleeNode->end())
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CalleeNode->removeCallEdgeTo(*(CalleeNode->end()-1));
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// If the function has external linkage (basically if it's a
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// linkonce function) remove the edge from the external node to the
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// callee node.
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if (!Callee->hasInternalLinkage())
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CG.getExternalCallingNode()->removeCallEdgeTo(CalleeNode);
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// Removing the node for callee from the call graph and delete it.
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delete CG.removeFunctionFromModule(CalleeNode);
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++NumDeleted;
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