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-rw-r--r--contrib/llvm/tools/opt/GraphPrinters.cpp123
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diff --git a/contrib/llvm/tools/opt/GraphPrinters.cpp b/contrib/llvm/tools/opt/GraphPrinters.cpp
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-//===- GraphPrinters.cpp - DOT printers for various graph types -----------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines several printers for various different types of graphs used
-// by the LLVM infrastructure. It uses the generic graph interface to convert
-// the graph into a .dot graph. These graphs can then be processed with the
-// "dot" tool to convert them to postscript or some other suitable format.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/GraphWriter.h"
-#include "llvm/Pass.h"
-#include "llvm/Value.h"
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Analysis/Dominators.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace llvm;
-
-template<typename GraphType>
-static void WriteGraphToFile(raw_ostream &O, const std::string &GraphName,
- const GraphType &GT) {
- 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();
- else
- 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
-//===----------------------------------------------------------------------===//
-
-namespace {
- class DomInfoPrinter : public FunctionPass {
- public:
- static char ID; // Pass identification, replacement for typeid
- DomInfoPrinter() : FunctionPass(ID) {}
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<DominatorTree>();
- AU.addRequired<DominanceFrontier>();
-
- }
-
- virtual bool runOnFunction(Function &F) {
- DominatorTree &DT = getAnalysis<DominatorTree>();
- DT.dump();
- DominanceFrontier &DF = getAnalysis<DominanceFrontier>();
- DF.dump();
- return false;
- }
- };
-}
-
-char DomInfoPrinter::ID = 0;
-static RegisterPass<DomInfoPrinter>
-DIP("print-dom-info", "Dominator Info Printer", true, true);
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