Add support for some of the LLVM atomic operations to the MBlaze backend.

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

diff --git a/tools/opt/GraphPrinters.cpp b/tools/opt/GraphPrinters.cpp
index 6d2750f5e2eb2931b9683e1e5863c4fb8aab08a3..a1b518fc5942345b60fbdb01252f0c786814715f 100644 (file)
--- a/tools/opt/GraphPrinters.cpp
+++ b/tools/opt/GraphPrinters.cpp
@@ -1,10 +1,10 @@
 //===- 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
@@ -14,26 +14,33 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Support/GraphWriter.h"
+#include "llvm/Support/GraphWriter.h"
 #include "llvm/Pass.h"
 #include "llvm/Value.h"
 #include "llvm/Analysis/CallGraph.h"
-#include <fstream>
-
-namespace llvm {
+#include "llvm/Analysis/Dominators.h"
+#include "llvm/Support/ToolOutputFile.h"
+using namespace llvm;
 
 template<typename GraphType>
-static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
+static void WriteGraphToFile(raw_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";
+  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();
 }
 
 
@@ -41,38 +48,76 @@ static void WriteGraphToFile(std::ostream &O, const std::string &GraphName,
 //                              Call Graph Printer
 //===----------------------------------------------------------------------===//
 
-template<>
-struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
-  static std::string getGraphName(CallGraph *F) {
-    return "Call Graph";
-  }
+namespace llvm {
+  template<>
+  struct DOTGraphTraits<CallGraph*> : public DefaultDOTGraphTraits {
 
-  static std::string getNodeLabel(CallGraphNode *Node, CallGraph *Graph) {
-    if (Node->getFunction())
-      return ((Value*)Node->getFunction())->getName();
-    else
-      return "Indirect call node";
-  }
-};
+  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 Pass {
-    virtual bool run(Module &M) {
-      WriteGraphToFile(std::cerr, "callgraph", &getAnalysis<CallGraph>());
+  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(std::ostream &OS) const {}
-    
+    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");
 
-  RegisterAnalysis<CallGraphPrinter> P2("print-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;
+    }
+  };
+}
 
-} // End llvm namespace
+char DomInfoPrinter::ID = 0;
+static RegisterPass<DomInfoPrinter>
+DIP("print-dom-info", "Dominator Info Printer", true, true);