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Add two missing returns, which caused us to be very pessimistic about the
printf and scanf families! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11683 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -12,7 +12,7 @@
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// or not a node is collapsed, etc. These are the command line arguments that
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// it supports:
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//
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// --dsgc-dsapass={local,bu,td} - Specify what flavor of graph to check
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// --dsgc-dspass={local,bu,td} - Specify what flavor of graph to check
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// --dsgc-abort-if-any-collapsed - Abort if any collapsed nodes are found
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// --dsgc-abort-if-collapsed=<list> - Abort if a node pointed to by an SSA
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// value with name in <list> is collapsed
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@ -38,7 +38,6 @@ X("datastructure", "Local Data Structure Analysis");
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static cl::opt<bool>
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TrackIntegersAsPointers("dsa-track-integers",
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cl::desc("If this is set, track integers as potential pointers"));
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namespace llvm {
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namespace DS {
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@ -581,6 +580,7 @@ void GraphBuilder::visitCallSite(CallSite CS) {
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if (DSNode *N = getValueDest(**AI).getNode())
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N->setReadMarker();
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}
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return;
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} else if (F->getName() == "scanf" || F->getName() == "fscanf" ||
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F->getName() == "sscanf") {
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CallSite::arg_iterator AI = CS.arg_begin(), E = CS.arg_end();
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@ -612,6 +612,7 @@ void GraphBuilder::visitCallSite(CallSite CS) {
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if (DSNode *N = getValueDest(**AI).getNode())
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N->setModifiedMarker();
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}
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return;
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} else if (F->getName() == "strtok") {
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// strtok reads and writes the first argument, returning it. It reads
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// its second arg. FIXME: strtok also modifies some hidden static
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