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//===-- DOTGraphTraitsPass.h - Print/View dotty graphs-----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Templates to create dotty viewer and printer passes for GraphTraits graphs.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_DOTGRAPHTRAITSPASS_H
#define LLVM_ANALYSIS_DOTGRAPHTRAITSPASS_H
#include "llvm/Analysis/CFGPrinter.h"
#include "llvm/Pass.h"
namespace llvm {
/// \brief Default traits class for extracting a graph from an analysis pass.
///
/// This assumes that 'GraphT' is 'AnalysisT *' and so just passes it through.
template <typename AnalysisT, typename GraphT = AnalysisT *>
struct DefaultAnalysisGraphTraits {
static GraphT getGraph(AnalysisT *A) { return A; }
};
template <
typename AnalysisT, bool IsSimple, typename GraphT = AnalysisT *,
typename AnalysisGraphTraitsT = DefaultAnalysisGraphTraits<AnalysisT> >
class DOTGraphTraitsViewer : public FunctionPass {
public:
DOTGraphTraitsViewer(StringRef GraphName, char &ID)
: FunctionPass(ID), Name(GraphName) {}
bool runOnFunction(Function &F) override {
GraphT Graph = AnalysisGraphTraitsT::getGraph(&getAnalysis<AnalysisT>());
std::string GraphName = DOTGraphTraits<GraphT>::getGraphName(Graph);
std::string Title = GraphName + " for '" + F.getName().str() + "' function";
ViewGraph(Graph, Name, IsSimple, Title);
return false;
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
AU.addRequired<AnalysisT>();
}
private:
std::string Name;
};
template <
typename AnalysisT, bool IsSimple, typename GraphT = AnalysisT *,
typename AnalysisGraphTraitsT = DefaultAnalysisGraphTraits<AnalysisT> >
class DOTGraphTraitsPrinter : public FunctionPass {
public:
DOTGraphTraitsPrinter(StringRef GraphName, char &ID)
: FunctionPass(ID), Name(GraphName) {}
bool runOnFunction(Function &F) override {
GraphT Graph = AnalysisGraphTraitsT::getGraph(&getAnalysis<AnalysisT>());
std::string Filename = Name + "." + F.getName().str() + ".dot";
std::string ErrorInfo;
errs() << "Writing '" << Filename << "'...";
raw_fd_ostream File(Filename.c_str(), ErrorInfo, sys::fs::F_Text);
std::string GraphName = DOTGraphTraits<GraphT>::getGraphName(Graph);
std::string Title = GraphName + " for '" + F.getName().str() + "' function";
if (ErrorInfo.empty())
WriteGraph(File, Graph, IsSimple, Title);
else
errs() << " error opening file for writing!";
errs() << "\n";
return false;
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
AU.addRequired<AnalysisT>();
}
private:
std::string Name;
};
template <
typename AnalysisT, bool IsSimple, typename GraphT = AnalysisT *,
typename AnalysisGraphTraitsT = DefaultAnalysisGraphTraits<AnalysisT> >
class DOTGraphTraitsModuleViewer : public ModulePass {
public:
DOTGraphTraitsModuleViewer(StringRef GraphName, char &ID)
: ModulePass(ID), Name(GraphName) {}
bool runOnModule(Module &M) override {
GraphT Graph = AnalysisGraphTraitsT::getGraph(&getAnalysis<AnalysisT>());
std::string Title = DOTGraphTraits<GraphT>::getGraphName(Graph);
ViewGraph(Graph, Name, IsSimple, Title);
return false;
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
AU.addRequired<AnalysisT>();
}
private:
std::string Name;
};
template <
typename AnalysisT, bool IsSimple, typename GraphT = AnalysisT *,
typename AnalysisGraphTraitsT = DefaultAnalysisGraphTraits<AnalysisT> >
class DOTGraphTraitsModulePrinter : public ModulePass {
public:
DOTGraphTraitsModulePrinter(StringRef GraphName, char &ID)
: ModulePass(ID), Name(GraphName) {}
bool runOnModule(Module &M) override {
GraphT Graph = AnalysisGraphTraitsT::getGraph(&getAnalysis<AnalysisT>());
std::string Filename = Name + ".dot";
std::string ErrorInfo;
errs() << "Writing '" << Filename << "'...";
raw_fd_ostream File(Filename.c_str(), ErrorInfo, sys::fs::F_Text);
std::string Title = DOTGraphTraits<GraphT>::getGraphName(Graph);
if (ErrorInfo.empty())
WriteGraph(File, Graph, IsSimple, Title);
else
errs() << " error opening file for writing!";
errs() << "\n";
return false;
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
AU.addRequired<AnalysisT>();
}
private:
std::string Name;
};
} // end namespace llvm
#endif
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