[GlobalMerge] Use private linkage for MergedGlobals variables

[oota-llvm.git] / tools / opt / GraphPrinters.cpp

diff --git a/tools/opt/GraphPrinters.cpp b/tools/opt/GraphPrinters.cpp
index 83708ecbf71fc537eaec8028170ba78bbb1a4d5f..640edfee41dec002ec300b688154ad70cc7e3073 100644 (file)
--- a/tools/opt/GraphPrinters.cpp
+++ b/tools/opt/GraphPrinters.cpp
@@ -1,12 +1,11 @@
 //===- GraphPrinters.cpp - DOT printers for various graph types -----------===//
-// 
+//
 //                     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.
+//
 //===----------------------------------------------------------------------===//
-// 
 //
 // This file defines several printers for various different types of graphs used
 // by the LLVM infrastructure.  It uses the generic graph interface to convert
@@ -15,126 +14,33 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Support/GraphWriter.h"
+#include "llvm/IR/Dominators.h"
 #include "llvm/Pass.h"
-#include "llvm/iTerminators.h"
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Support/CFG.h"
-#include <sstream>
-#include <fstream>
+
+using namespace llvm;
 
 //===----------------------------------------------------------------------===//
-//                         Control Flow Graph Printer
+//                            DomInfoPrinter Pass
 //===----------------------------------------------------------------------===//
 
-template<>
-struct DOTGraphTraits<Function*> : public DefaultDOTGraphTraits {
-  static std::string getGraphName(Function *F) {
-    return "CFG for '" + F->getName() + "' function";
-  }
-
-  static std::string getNodeLabel(BasicBlock *Node, Function *Graph) {
-    std::ostringstream Out;
-    Out << Node;
-    std::string OutStr = Out.str();
-    if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
-
-    // Process string output to make it nicer...
-    for (unsigned i = 0; i != OutStr.length(); ++i)
-      if (OutStr[i] == '\n') {                            // Left justify
-        OutStr[i] = '\\';
-        OutStr.insert(OutStr.begin()+i+1, 'l');
-      } else if (OutStr[i] == ';') {                      // Delete comments!
-        unsigned Idx = OutStr.find('\n', i+1);            // Find end of line
-        OutStr.erase(OutStr.begin()+i, OutStr.begin()+Idx);
-        --i;
-      }
-
-    return OutStr;
-  }
-
-  static std::string getNodeAttributes(BasicBlock *N) {
-    return "fontname=Courier";
-  }
-  
-  static std::string getEdgeSourceLabel(BasicBlock *Node, succ_iterator I) {
-    // Label source of conditional branches with "T" or "F"
-    if (BranchInst *BI = dyn_cast<BranchInst>(Node->getTerminator()))
-      if (BI->isConditional())
-        return (I == succ_begin(Node)) ? "T" : "F";
-    return "";
-  }
-};
-
-template<typename GraphType>
-static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
-                             const GraphType &GT) {
-  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";
-}
-
-
 namespace {
-  struct CFGPrinter : public FunctionPass {
-    virtual bool runOnFunction(Function &Func) {
-      WriteGraphToFile(std::cerr, "cfg."+Func.getName(), &Func);
-      return false;
-    }
+  class DomInfoPrinter : public FunctionPass {
+  public:
+    static char ID; // Pass identification, replacement for typeid
+    DomInfoPrinter() : FunctionPass(ID) {}
 
-    void print(std::ostream &OS) const {}
-    
-    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
       AU.setPreservesAll();
+      AU.addRequired<DominatorTreeWrapperPass>();
     }
-  };
 
-  RegisterAnalysis<CFGPrinter> P1("print-cfg",
-                                  "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>());
+    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);