X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FAnalysis%2FCallGraph.h;h=de839694dc8a3d812635c6321eeab54683856d45;hb=7714285efd2a7f4e503f0f600667193e63ee6d08;hp=e8d45cf94377c6c6f429c5aa78d49fd3cf8df074;hpb=7ed47a13356daed2a34cd2209a31f92552e3bdd8;p=oota-llvm.git diff --git a/include/llvm/Analysis/CallGraph.h b/include/llvm/Analysis/CallGraph.h index e8d45cf9437..de839694dc8 100644 --- a/include/llvm/Analysis/CallGraph.h +++ b/include/llvm/Analysis/CallGraph.h @@ -55,6 +55,8 @@ #include "llvm/ADT/STLExtras.h" #include "llvm/Pass.h" #include "llvm/Support/CallSite.h" +#include "llvm/System/IncludeFile.h" +#include namespace llvm { @@ -102,16 +104,16 @@ public: return I->second; } - //Returns the CallGraphNode which is used to represent undetermined calls - // into the callgraph. Override this if you want behavioural inheritance. + /// Returns the CallGraphNode which is used to represent undetermined calls + /// into the callgraph. Override this if you want behavioral inheritance. virtual CallGraphNode* getExternalCallingNode() const { return 0; } - - //Return the root/main method in the module, or some other root node, such - // as the externalcallingnode. Overload these if you behavioural - // inheritance. + + /// Return the root/main method in the module, or some other root node, such + /// as the externalcallingnode. Overload these if you behavioral + /// inheritance. virtual CallGraphNode* getRoot() { return 0; } virtual const CallGraphNode* getRoot() const { return 0; } - + //===--------------------------------------------------------------------- // Functions to keep a call graph up to date with a function that has been // modified. @@ -138,17 +140,17 @@ public: /// it will insert a new CallGraphNode for the specified function if one does /// not already exist. CallGraphNode *getOrInsertFunction(const Function *F); - + //===--------------------------------------------------------------------- // Pass infrastructure interface glue code... // protected: CallGraph() {} - + public: virtual ~CallGraph() { destroy(); } - /// initialize - Call this method before calling other methods, + /// initialize - Call this method before calling other methods, /// re/initializes the state of the CallGraph. /// void initialize(Module &M); @@ -156,11 +158,8 @@ public: virtual void print(std::ostream &o, const Module *M) const; void print(std::ostream *o, const Module *M) const { if (o) print(*o, M); } void dump() const; - - // stub - dummy function, just ignore it - static int stub; -protected: +protected: // destroy - Release memory for the call graph virtual void destroy(); }; @@ -175,6 +174,8 @@ class CallGraphNode { CallGraphNode(const CallGraphNode &); // Do not implement public: + typedef std::vector CalledFunctionsVector; + //===--------------------------------------------------------------------- // Accessor methods... // @@ -190,7 +191,7 @@ public: inline const_iterator begin() const { return CalledFunctions.begin(); } inline const_iterator end() const { return CalledFunctions.end(); } inline bool empty() const { return CalledFunctions.empty(); } - inline unsigned size() const { return CalledFunctions.size(); } + inline unsigned size() const { return (unsigned)CalledFunctions.size(); } // Subscripting operator - Return the i'th called function... // @@ -215,22 +216,31 @@ public: CalledFunctions.clear(); } - /// addCalledFunction add a function to the list of functions called by this + /// addCalledFunction - Add a function to the list of functions called by this /// one. void addCalledFunction(CallSite CS, CallGraphNode *M) { CalledFunctions.push_back(std::make_pair(CS, M)); } - /// removeCallEdgeTo - This method removes a *single* edge to the specified - /// callee function. Note that this method takes linear time, so it should be - /// used sparingly. - void removeCallEdgeTo(CallGraphNode *Callee); + /// removeCallEdgeFor - This method removes the edge in the node for the + /// specified call site. Note that this method takes linear time, so it + /// should be used sparingly. + void removeCallEdgeFor(CallSite CS); - /// removeAnyCallEdgeTo - This method removes any call edges from this node to - /// the specified callee function. This takes more time to execute than + /// removeAnyCallEdgeTo - This method removes all call edges from this node + /// to the specified callee function. This takes more time to execute than /// removeCallEdgeTo, so it should not be used unless necessary. void removeAnyCallEdgeTo(CallGraphNode *Callee); + /// removeOneAbstractEdgeTo - Remove one edge associated with a null callsite + /// from this node to the specified callee function. + void removeOneAbstractEdgeTo(CallGraphNode *Callee); + + /// replaceCallSite - Make the edge in the node for Old CallSite be for + /// New CallSite instead. Note that this method takes linear time, so it + /// should be used sparingly. + void replaceCallSite(CallSite Old, CallSite New); + friend class CallGraph; // CallGraphNode ctor - Create a node for the specified function. @@ -249,22 +259,22 @@ template <> struct GraphTraits { typedef std::pair CGNPairTy; typedef std::pointer_to_unary_function CGNDerefFun; - + static NodeType *getEntryNode(CallGraphNode *CGN) { return CGN; } - + typedef mapped_iterator ChildIteratorType; - + static inline ChildIteratorType child_begin(NodeType *N) { return map_iterator(N->begin(), CGNDerefFun(CGNDeref)); } static inline ChildIteratorType child_end (NodeType *N) { return map_iterator(N->end(), CGNDerefFun(CGNDeref)); } - + static CallGraphNode *CGNDeref(CGNPairTy P) { return P.second; } - + }; template <> struct GraphTraits {