Added -view-callgraph module pass.
-dot-callgraph similarly follows a standard module pass pattern.
Patch by Speziale Ettore!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172220 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/GraphPrinters.cpp b/tools/opt/GraphPrinters.cpp
index c7481e5..f271966 100644
--- a/tools/opt/GraphPrinters.cpp
+++ b/tools/opt/GraphPrinters.cpp
@@ -14,82 +14,11 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/Dominators.h"
-#include "llvm/IR/Value.h"
#include "llvm/Pass.h"
-#include "llvm/Support/GraphWriter.h"
-#include "llvm/Support/ToolOutputFile.h"
+
using namespace llvm;
-template<typename GraphType>
-static void WriteGraphToFile(raw_ostream &O, const std::string &GraphName,
- const GraphType >) {
- std::string Filename = GraphName + ".dot";
- O << "Writing '" << Filename << "'...";
- std::string ErrInfo;
- tool_output_file F(Filename.c_str(), ErrInfo);
-
- if (ErrInfo.empty()) {
- WriteGraph(F.os(), GT);
- F.os().close();
- if (!F.os().has_error()) {
- O << "\n";
- F.keep();
- return;
- }
- }
- O << " error opening file for writing!\n";
- F.os().clear_error();
-}
-
-
-//===----------------------------------------------------------------------===//
-// Call Graph Printer
-//===----------------------------------------------------------------------===//
-
-namespace llvm {
- template<>
- struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
-
- DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
-
- static std::string getGraphName(CallGraph *F) {
- return "Call Graph";
- }
-
- static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
- if (Node->getFunction())
- return ((Value*)Node->getFunction())->getName();
- return "external node";
- }
- };
-}
-
-
-namespace {
- struct CallGraphPrinter : public ModulePass {
- static char ID; // Pass ID, replacement for typeid
- CallGraphPrinter() : ModulePass(ID) {}
-
- virtual bool runOnModule(Module &M) {
- WriteGraphToFile(llvm::errs(), "callgraph", &getAnalysis<CallGraph>());
- return false;
- }
-
- void print(raw_ostream &OS, const llvm::Module*) const {}
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.addRequired<CallGraph>();
- AU.setPreservesAll();
- }
- };
-}
-
-char CallGraphPrinter::ID = 0;
-static RegisterPass<CallGraphPrinter> P2("dot-callgraph",
- "Print Call Graph to 'dot' file");
-
//===----------------------------------------------------------------------===//
// DomInfoPrinter Pass
//===----------------------------------------------------------------------===//