//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
-#include "llvm/Support/GraphWriter.h"
+#include "llvm/IR/Dominators.h"
#include "llvm/Pass.h"
-#include "llvm/Value.h"
-#include "llvm/Analysis/CallGraph.h"
-#include <fstream>
-using namespace llvm;
-
-template<typename GraphType>
-static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
- const GraphType >) {
- std::string Filename = GraphName + ".dot";
- O << "Writing '" << Filename << "'...";
- std::ofstream F(Filename.c_str());
-
- if (F.good())
- WriteGraph(F, GT);
- else
- O << " error opening file for writing!";
- O << "\n";
-}
+using namespace llvm;
//===----------------------------------------------------------------------===//
-// Call Graph Printer
+// DomInfoPrinter Pass
//===----------------------------------------------------------------------===//
-namespace llvm {
- template<>
- struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
- static std::string getGraphName(CallGraph *F) {
- return "Call Graph";
- }
+namespace {
+ class DomInfoPrinter : public FunctionPass {
+ public:
+ static char ID; // Pass identification, replacement for typeid
+ DomInfoPrinter() : FunctionPass(ID) {}
- static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
- if (Node->getFunction())
- return ((Value*)Node->getFunction())->getName();
- else
- return "Indirect call node";
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AU.setPreservesAll();
+ AU.addRequired<DominatorTreeWrapperPass>();
}
- };
-}
-
-namespace {
- struct CallGraphPrinter : public ModulePass {
- virtual bool runOnModule(Module &M) {
- WriteGraphToFile(std::cerr, "callgraph", &getAnalysis<CallGraph>());
+ bool runOnFunction(Function &F) override {
+ getAnalysis<DominatorTreeWrapperPass>().dump();
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");
-};
+char DomInfoPrinter::ID = 0;
+static RegisterPass<DomInfoPrinter>
+DIP("print-dom-info", "Dominator Info Printer", true, true);