Move all of the header files which are involved in modelling the LLVM IR

[oota-llvm.git] / include / llvm / Analysis / CFGPrinter.h

diff --git a/include/llvm/Analysis/CFGPrinter.h b/include/llvm/Analysis/CFGPrinter.h
index 435f8ea484937f8b178937cf6ee271683d4583b9..fa596c3a3c99d99583d8fd85d628cf37619ab322 100644 (file)
--- a/include/llvm/Analysis/CFGPrinter.h
+++ b/include/llvm/Analysis/CFGPrinter.h
@@ -1,4 +1,4 @@
-//===-- CFGPrinter.h - CFG printer external interface ------------*- C++ -*-===//
+//===-- CFGPrinter.h - CFG printer external interface -----------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -15,32 +15,39 @@
 #ifndef LLVM_ANALYSIS_CFGPRINTER_H
 #define LLVM_ANALYSIS_CFGPRINTER_H
 
-#include "llvm/Function.h"
-#include "llvm/Instructions.h"
 #include "llvm/Assembly/Writer.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/Instructions.h"
 #include "llvm/Support/CFG.h"
 #include "llvm/Support/GraphWriter.h"
 
 namespace llvm {
 template<>
 struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
+
+  DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
+
   static std::string getGraphName(const Function *F) {
-    return "CFG for '" + F->getNameStr() + "' function";
+    return "CFG for '" + F->getName().str() + "' function";
   }
 
-  static std::string getNodeLabel(const BasicBlock *Node,
-                                  const Function *Graph,
-                                  bool ShortNames) {
-    if (ShortNames && !Node->getName().empty())
-      return Node->getNameStr() + ":";
+  static std::string getSimpleNodeLabel(const BasicBlock *Node,
+                                        const Function *) {
+    if (!Node->getName().empty())
+      return Node->getName().str();
 
     std::string Str;
     raw_string_ostream OS(Str);
 
-    if (ShortNames) {
-      WriteAsOperand(OS, Node, false);
-      return OS.str();
-    }
+    WriteAsOperand(OS, Node, false);
+    return OS.str();
+  }
+
+  static std::string getCompleteNodeLabel(const BasicBlock *Node, 
+                                          const Function *) {
+    std::string Str;
+    raw_string_ostream OS(Str);
 
     if (Node->getName().empty()) {
       WriteAsOperand(OS, Node, false);
@@ -65,12 +72,34 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits {
     return OutStr;
   }
 
+  std::string getNodeLabel(const BasicBlock *Node,
+                           const Function *Graph) {
+    if (isSimple())
+      return getSimpleNodeLabel(Node, Graph);
+    else
+      return getCompleteNodeLabel(Node, Graph);
+  }
+
   static std::string getEdgeSourceLabel(const BasicBlock *Node,
                                         succ_const_iterator I) {
     // Label source of conditional branches with "T" or "F"
     if (const BranchInst *BI = dyn_cast<BranchInst>(Node->getTerminator()))
       if (BI->isConditional())
         return (I == succ_begin(Node)) ? "T" : "F";
+    
+    // Label source of switch edges with the associated value.
+    if (const SwitchInst *SI = dyn_cast<SwitchInst>(Node->getTerminator())) {
+      unsigned SuccNo = I.getSuccessorIndex();
+
+      if (SuccNo == 0) return "def";
+      
+      std::string Str;
+      raw_string_ostream OS(Str);
+      SwitchInst::ConstCaseIt Case =
+          SwitchInst::ConstCaseIt::fromSuccessorIndex(SI, SuccNo); 
+      OS << Case.getCaseValue()->getValue();
+      return OS.str();
+    }    
     return "";
   }
 };