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add a new CallGraphNode::removeCallEdgeFor method, tidy some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49617 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -103,13 +103,13 @@ public:
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return I->second;
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}
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//Returns the CallGraphNode which is used to represent undetermined calls
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// into the callgraph. Override this if you want behavioural inheritance.
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/// Returns the CallGraphNode which is used to represent undetermined calls
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/// into the callgraph. Override this if you want behavioral inheritance.
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virtual CallGraphNode* getExternalCallingNode() const { return 0; }
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//Return the root/main method in the module, or some other root node, such
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// as the externalcallingnode. Overload these if you behavioural
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// inheritance.
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/// Return the root/main method in the module, or some other root node, such
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/// as the externalcallingnode. Overload these if you behavioral
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/// inheritance.
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virtual CallGraphNode* getRoot() { return 0; }
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virtual const CallGraphNode* getRoot() const { return 0; }
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@ -227,6 +227,11 @@ public:
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/// used sparingly.
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void removeCallEdgeTo(CallGraphNode *Callee);
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/// removeCallEdgeFor - This method removes the edge in the node for the
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/// specified call site. Note that this method takes linear time, so it
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/// should be used sparingly.
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void removeCallEdgeFor(CallSite CS);
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/// removeAnyCallEdgeTo - This method removes any call edges from this node to
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/// the specified callee function. This takes more time to execute than
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/// removeCallEdgeTo, so it should not be used unless necessary.
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@ -293,6 +293,20 @@ void CallGraphNode::removeCallEdgeTo(CallGraphNode *Callee) {
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}
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}
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/// removeCallEdgeFor - This method removes the edge in the node for the
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/// specified call site. Note that this method takes linear time, so it
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/// should be used sparingly.
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void CallGraphNode::removeCallEdgeFor(CallSite CS) {
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for (unsigned i = CalledFunctions.size(); ; --i) {
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assert(i && "Cannot find callee to remove!");
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if (CalledFunctions[i-1].first == CS) {
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CalledFunctions.erase(CalledFunctions.begin()+i-1);
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return;
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}
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}
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}
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// removeAnyCallEdgeTo - This method removes any call edges from this node to
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// the specified callee function. This takes more time to execute than
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// removeCallEdgeTo, so it should not be used unless necessary.
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