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Implement a new -print-callgraph analysis that turns a callgraph into a dot

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4524 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-11-04 02:55:30 +00:00
parent af663465d6
commit f74825436c
2 changed files with 90 additions and 2 deletions
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46
tools/analyze/GraphPrinters.cpp
View File

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

46
tools/opt/GraphPrinters.cpp
View File

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