X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FCFGPrinter.cpp;h=8ada5a3f74cddf0df8d9906a65a19db640bb5816;hb=6316fbcb04af00fe76b6526fab09f51484014b3e;hp=6154460375871e27054ab0daff918099d893ad5b;hpb=794fd75c67a2cdc128d67342c6d88a504d186896;p=oota-llvm.git

diff --git a/lib/Analysis/CFGPrinter.cpp b/lib/Analysis/CFGPrinter.cpp
index 61544603758..8ada5a3f74c 100644
--- a/lib/Analysis/CFGPrinter.cpp
+++ b/lib/Analysis/CFGPrinter.cpp
@@ -2,12 +2,12 @@
 //
 //                     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 a '-print-cfg' analysis pass, which emits the
+// This file defines a '-dot-cfg' analysis pass, which emits the
 // cfg.<fnname>.dot file for each function in the program, with a graph of the
 // CFG for that function.
 //
@@ -31,12 +31,6 @@
 #include <fstream>
 using namespace llvm;
 
-/// CFGOnly flag - This is used to control whether or not the CFG graph printer
-/// prints out the contents of basic blocks or not.  This is acceptable because
-/// this code is only really used for debugging purposes.
-///
-static bool CFGOnly = false;
-
 namespace llvm {
 template<>
 struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
@@ -45,12 +39,13 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
   }
 
   static std::string getNodeLabel(const BasicBlock *Node,
-                                  const Function *Graph) {
-    if (CFGOnly && !Node->getName().empty())
+                                  const Function *Graph,
+                                  bool ShortNames) {
+    if (ShortNames && !Node->getName().empty())
       return Node->getName() + ":";
 
     std::ostringstream Out;
-    if (CFGOnly) {
+    if (ShortNames) {
       WriteAsOperand(Out, Node, false);
       return Out.str();
     }
@@ -89,10 +84,56 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
 };
 }
 
+namespace {
+  struct VISIBILITY_HIDDEN CFGViewer : public FunctionPass {
+    static char ID; // Pass identifcation, replacement for typeid
+    CFGViewer() : FunctionPass(&ID) {}
+
+    virtual bool runOnFunction(Function &F) {
+      F.viewCFG();
+      return false;
+    }
+
+    void print(std::ostream &OS, const Module* = 0) const {}
+
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+    }
+  };
+}
+
+char CFGViewer::ID = 0;
+static RegisterPass<CFGViewer>
+V0("view-cfg", "View CFG of function", false, true);
+
+namespace {
+  struct VISIBILITY_HIDDEN CFGOnlyViewer : public FunctionPass {
+    static char ID; // Pass identifcation, replacement for typeid
+    CFGOnlyViewer() : FunctionPass(&ID) {}
+
+    virtual bool runOnFunction(Function &F) {
+      F.viewCFG();
+      return false;
+    }
+
+    void print(std::ostream &OS, const Module* = 0) const {}
+
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+    }
+  };
+}
+
+char CFGOnlyViewer::ID = 0;
+static RegisterPass<CFGOnlyViewer>
+V1("view-cfg-only",
+   "View CFG of function (with no function bodies)", false, true);
+
 namespace {
   struct VISIBILITY_HIDDEN CFGPrinter : public FunctionPass {
-    static const int ID; // Pass identifcation, replacement for typeid
-    CFGPrinter() : FunctionPass((intptr_t)&ID) {}
+    static char ID; // Pass identification, replacement for typeid
+    CFGPrinter() : FunctionPass(&ID) {}
+    explicit CFGPrinter(void *pid) : FunctionPass(pid) {}
 
     virtual bool runOnFunction(Function &F) {
       std::string Filename = "cfg." + F.getName() + ".dot";
@@ -113,18 +154,27 @@ namespace {
       AU.setPreservesAll();
     }
   };
+}
 
-  const int CFGPrinter::ID = 0;
-  RegisterPass<CFGPrinter> P1("print-cfg",
-                              "Print CFG of function to 'dot' file");
+char CFGPrinter::ID = 0;
+static RegisterPass<CFGPrinter>
+P1("dot-cfg", "Print CFG of function to 'dot' file", false, true);
 
-  struct VISIBILITY_HIDDEN CFGOnlyPrinter : public CFGPrinter {
-    static const int ID; // Pass identifcation, replacement for typeid
+namespace {
+  struct VISIBILITY_HIDDEN CFGOnlyPrinter : public FunctionPass {
+    static char ID; // Pass identification, replacement for typeid
+    CFGOnlyPrinter() : FunctionPass(&ID) {}
+    explicit CFGOnlyPrinter(void *pid) : FunctionPass(pid) {}
     virtual bool runOnFunction(Function &F) {
-      bool OldCFGOnly = CFGOnly;
-      CFGOnly = true;
-      CFGPrinter::runOnFunction(F);
-      CFGOnly = OldCFGOnly;
+      std::string Filename = "cfg." + F.getName() + ".dot";
+      cerr << "Writing '" << Filename << "'...";
+      std::ofstream File(Filename.c_str());
+
+      if (File.good())
+        WriteGraph(File, (const Function*)&F, true);
+      else
+        cerr << "  error opening file for writing!";
+      cerr << "\n";
       return false;
     }
     void print(std::ostream &OS, const Module* = 0) const {}
@@ -133,13 +183,13 @@ namespace {
       AU.setPreservesAll();
     }
   };
-
-  const int CFGOnlyPrinter::ID = 0;
-  RegisterPass<CFGOnlyPrinter>
-  P2("print-cfg-only",
-     "Print CFG of function to 'dot' file (with no function bodies)");
 }
 
+char CFGOnlyPrinter::ID = 0;
+static RegisterPass<CFGOnlyPrinter>
+P2("dot-cfg-only",
+   "Print CFG of function to 'dot' file (with no function bodies)", false, true);
+
 /// viewCFG - This function is meant for use from the debugger.  You can just
 /// say 'call F->viewCFG()' and a ghostview window should pop up from the
 /// program, displaying the CFG of the current function.  This depends on there
@@ -155,9 +205,7 @@ void Function::viewCFG() const {
 /// his can make the graph smaller.
 ///
 void Function::viewCFGOnly() const {
-  CFGOnly = true;
-  viewCFG();
-  CFGOnly = false;
+  ViewGraph(this, "cfg" + getName(), true);
 }
 
 FunctionPass *llvm::createCFGPrinterPass () {