Hold the LLVMContext by reference rather than by pointer.

[oota-llvm.git] / include / llvm / Module.h

diff --git a/include/llvm/Module.h b/include/llvm/Module.h
index 92f58699cad83a5f8c5424e5fe79f5f77672a60e..8efa8e0e0eb1fa39bd3b592d65d34871f59f4d02 100644 (file)
--- a/include/llvm/Module.h
+++ b/include/llvm/Module.h
@@ -25,33 +25,36 @@ namespace llvm {
 
 class GlobalValueRefMap;   // Used by ConstantVals.cpp
 class FunctionType;
+class LLVMContext;
 
 template<> struct ilist_traits<Function>
   : public SymbolTableListTraits<Function, Module> {
-  // createSentinel is used to create a node that marks the end of the list.
-  static Function *createSentinel();
-  static void destroySentinel(Function *F) { delete F; }
-  static iplist<Function> &getList(Module *M);
-  static inline ValueSymbolTable *getSymTab(Module *M);
-  static int getListOffset();
+
+  // createSentinel is used to get hold of the node that marks the end of the
+  // list... (same trick used here as in ilist_traits<Instruction>)
+  Function *createSentinel() const {
+    return static_cast<Function*>(&Sentinel);
+  }
+  static void destroySentinel(Function*) {}
+
+  Function *provideInitialHead() const { return createSentinel(); }
+  Function *ensureHead(Function*) const { return createSentinel(); }
+  static void noteHead(Function*, Function*) {}
+
+private:
+  mutable ilist_node<Function> Sentinel;
 };
 template<> struct ilist_traits<GlobalVariable>
   : public SymbolTableListTraits<GlobalVariable, Module> {
   // createSentinel is used to create a node that marks the end of the list.
   static GlobalVariable *createSentinel();
   static void destroySentinel(GlobalVariable *GV) { delete GV; }
-  static iplist<GlobalVariable> &getList(Module *M);
-  static inline ValueSymbolTable *getSymTab(Module *M);
-  static int getListOffset();
 };
 template<> struct ilist_traits<GlobalAlias>
   : public SymbolTableListTraits<GlobalAlias, Module> {
   // createSentinel is used to create a node that marks the end of the list.
   static GlobalAlias *createSentinel();
   static void destroySentinel(GlobalAlias *GA) { delete GA; }
-  static iplist<GlobalAlias> &getList(Module *M);
-  static inline ValueSymbolTable *getSymTab(Module *M);
-  static int getListOffset();
 };
 
 /// A Module instance is used to store all the information related to an
@@ -107,6 +110,8 @@ public:
 /// @name Member Variables
 /// @{
 private:
+  const LLVMContext& Context;    ///< The LLVMContext from which types and
+                                 ///< constants are allocated.
   GlobalListType GlobalList;     ///< The Global Variables in the module
   FunctionListType FunctionList; ///< The Functions in the module
   AliasListType AliasList;       ///< The Aliases in the module
@@ -126,7 +131,7 @@ private:
 public:
   /// The Module constructor. Note that there is no default constructor. You
   /// must provide a name for the module upon construction.
-  explicit Module(const std::string &ModuleID);
+  explicit Module(const std::string &ModuleID, const LLVMContext& C);
   /// The module destructor. This will dropAllReferences.
   ~Module();
 
@@ -155,6 +160,10 @@ public:
   /// @returns PointerSize - an enumeration for the size of the target's pointer
   PointerSize getPointerSize() const;
 
+  /// Get the global data context.
+  /// @returns LLVMContext - a container for LLVM's global information
+  const LLVMContext& getContext() const { return Context; }
+
   /// Get any module-scope inline assembly blocks.
   /// @returns a string containing the module-scope inline assembly blocks.
   const std::string &getModuleInlineAsm() const { return GlobalScopeAsm; }
@@ -294,14 +303,23 @@ public:
   const GlobalListType   &getGlobalList() const       { return GlobalList; }
   /// Get the Module's list of global variables.
   GlobalListType         &getGlobalList()             { return GlobalList; }
+  static iplist<GlobalVariable> Module::*getSublistAccess(GlobalVariable*) {
+    return &Module::GlobalList;
+  }
   /// Get the Module's list of functions (constant).
   const FunctionListType &getFunctionList() const     { return FunctionList; }
   /// Get the Module's list of functions.
   FunctionListType       &getFunctionList()           { return FunctionList; }
+  static iplist<Function> Module::*getSublistAccess(Function*) {
+    return &Module::FunctionList;
+  }
   /// Get the Module's list of aliases (constant).
   const AliasListType    &getAliasList() const        { return AliasList; }
   /// Get the Module's list of aliases.
   AliasListType          &getAliasList()              { return AliasList; }
+  static iplist<GlobalAlias> Module::*getSublistAccess(GlobalAlias*) {
+    return &Module::AliasList;
+  }
   /// Get the symbol table of global variable and function identifiers
   const ValueSymbolTable &getValueSymbolTable() const { return *ValSymTab; }
   /// Get the Module's symbol table of global variable and function identifiers.
@@ -395,19 +413,6 @@ public:
   /// that has "dropped all references", except operator delete.
   void dropAllReferences();
 /// @}
-
-  static unsigned getFunctionListOffset() {
-    Module *Obj = 0;
-    return unsigned(reinterpret_cast<uintptr_t>(&Obj->FunctionList));
-  }
-  static unsigned getGlobalVariableListOffset() {
-    Module *Obj = 0;
-    return unsigned(reinterpret_cast<uintptr_t>(&Obj->GlobalList));
-  }
-  static unsigned getAliasListOffset() {
-    Module *Obj = 0;
-    return unsigned(reinterpret_cast<uintptr_t>(&Obj->AliasList));
-  }
 };
 
 /// An iostream inserter for modules.
@@ -419,37 +424,6 @@ inline raw_ostream &operator<<(raw_ostream &O, const Module &M) {
   M.print(O, 0);
   return O;
 }
-  
-
-inline ValueSymbolTable *
-ilist_traits<Function>::getSymTab(Module *M) {
-  return M ? &M->getValueSymbolTable() : 0;
-}
-
-inline ValueSymbolTable *
-ilist_traits<GlobalVariable>::getSymTab(Module *M) {
-  return M ? &M->getValueSymbolTable() : 0;
-}
-
-inline ValueSymbolTable *
-ilist_traits<GlobalAlias>::getSymTab(Module *M) {
-  return M ? &M->getValueSymbolTable() : 0;
-}
-
-inline int
-ilist_traits<Function>::getListOffset() {
-  return Module::getFunctionListOffset();
-}
-
-inline int
-ilist_traits<GlobalVariable>::getListOffset() {
-  return Module::getGlobalVariableListOffset();
-}
-
-inline int
-ilist_traits<GlobalAlias>::getListOffset() {
-  return Module::getAliasListOffset();
-}
 
 } // End llvm namespace