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Implement a new -print-callgraph analysis that turns a callgraph into a dot
graph git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4524 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -10,10 +10,15 @@
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#include "Support/GraphWriter.h"
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#include "llvm/Pass.h"
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#include "llvm/iTerminators.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Support/CFG.h"
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#include <sstream>
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#include <fstream>
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//===----------------------------------------------------------------------===//
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// Control Flow Graph Printer
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//===----------------------------------------------------------------------===//
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template<>
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struct DOTGraphTraits<Function*> : public DefaultDOTGraphTraits {
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static std::string getGraphName(Function *F) {
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@ -70,7 +75,6 @@ static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
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namespace {
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struct CFGPrinter : public FunctionPass {
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Function *F;
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virtual bool runOnFunction(Function &Func) {
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WriteGraphToFile(std::cerr, "cfg."+Func.getName(), &Func);
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return false;
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@ -86,3 +90,43 @@ namespace {
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RegisterAnalysis<CFGPrinter> P1("print-cfg",
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"Print CFG of function to 'dot' file");
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};
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//===----------------------------------------------------------------------===//
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// Call Graph Printer
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//===----------------------------------------------------------------------===//
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template<>
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struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
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static std::string getGraphName(CallGraph *F) {
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return "Call Graph";
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}
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static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
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if (Node->getFunction())
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return Node->getFunction()->getName();
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else
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return "Indirect call node";
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}
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};
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namespace {
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struct CallGraphPrinter : public Pass {
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virtual bool run(Module &M) {
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WriteGraphToFile(std::cerr, "callgraph", &getAnalysis<CallGraph>());
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return false;
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}
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void print(std::ostream &OS) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<CallGraph>();
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AU.setPreservesAll();
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}
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};
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RegisterAnalysis<CallGraphPrinter> P2("print-callgraph",
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"Print Call Graph to 'dot' file");
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};
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@ -10,10 +10,15 @@
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#include "Support/GraphWriter.h"
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#include "llvm/Pass.h"
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#include "llvm/iTerminators.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Support/CFG.h"
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#include <sstream>
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#include <fstream>
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//===----------------------------------------------------------------------===//
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// Control Flow Graph Printer
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//===----------------------------------------------------------------------===//
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template<>
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struct DOTGraphTraits<Function*> : public DefaultDOTGraphTraits {
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static std::string getGraphName(Function *F) {
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@ -70,7 +75,6 @@ static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
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namespace {
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struct CFGPrinter : public FunctionPass {
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Function *F;
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virtual bool runOnFunction(Function &Func) {
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WriteGraphToFile(std::cerr, "cfg."+Func.getName(), &Func);
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return false;
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@ -86,3 +90,43 @@ namespace {
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RegisterAnalysis<CFGPrinter> P1("print-cfg",
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"Print CFG of function to 'dot' file");
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};
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//===----------------------------------------------------------------------===//
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// Call Graph Printer
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//===----------------------------------------------------------------------===//
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template<>
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struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
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static std::string getGraphName(CallGraph *F) {
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return "Call Graph";
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}
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static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
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if (Node->getFunction())
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return Node->getFunction()->getName();
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else
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return "Indirect call node";
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}
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};
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namespace {
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struct CallGraphPrinter : public Pass {
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virtual bool run(Module &M) {
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WriteGraphToFile(std::cerr, "callgraph", &getAnalysis<CallGraph>());
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return false;
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}
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void print(std::ostream &OS) const {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<CallGraph>();
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AU.setPreservesAll();
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}
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};
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RegisterAnalysis<CallGraphPrinter> P2("print-callgraph",
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"Print Call Graph to 'dot' file");
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};
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