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Fix a minor bug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12169 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -71,7 +71,8 @@ bool CompleteBUDataStructures::run(Module &M) {
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unsigned NextID = 1;
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if (Function *Main = M.getMainFunction()) {
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calculateSCCGraphs(getOrCreateGraph(*Main), Stack, NextID, ValMap);
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if (!Main->isExternal())
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calculateSCCGraphs(getOrCreateGraph(*Main), Stack, NextID, ValMap);
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} else {
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std::cerr << "CBU-DSA: No 'main' function found!\n";
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}
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