Change inline asms to be uniqued like constants, not embedded in a Module.

llvm-svn: 25610

llvm/include/llvm/InlineAsm.h

@@ -8,7 +8,8 @@
 //===----------------------------------------------------------------------===//
 //
 // This class represents the inline asm strings, which are Value*'s that are
-// used as the callee operand of call instructions.
+// used as the callee operand of call instructions.  InlineAsm's are uniqued
+// like constants, and created via InlineAsm::get(...).
 //
 //===----------------------------------------------------------------------===//
 
@@ -23,35 +24,24 @@ struct AssemblyAnnotationWriter;
 class PointerType;
 class FunctionType;
 class Module;
-template<typename SC> struct ilist_traits;
-template<typename ValueSubClass, typename ItemParentClass, typename SymTabClass,
-         typename SubClass> class SymbolTableListTraits;
 
 class InlineAsm : public Value {
-  friend class SymbolTableListTraits<InlineAsm, Module, Module,
-                                     ilist_traits<InlineAsm> >;
   InlineAsm(const InlineAsm &);             // do not implement
   void operator=(const InlineAsm&);         // do not implement
 
-  void setParent(Module *Parent);
-  InlineAsm *Prev, *Next;
-  void setNext(InlineAsm *N) { Next = N; }
-  void setPrev(InlineAsm *N) { Prev = N; }
-        InlineAsm *getNext()       { return Next; }
-  const InlineAsm *getNext() const { return Next; }
-        InlineAsm *getPrev()       { return Prev; }
-  const InlineAsm *getPrev() const { return Prev; }
-  
-  Module *Parent;
   std::string AsmString, Constraints;
-  bool AsmHasSideEffects;
-public:
-  InlineAsm(const FunctionType *Ty, const std::string &AsmString,
-            const std::string &Constraints, bool hasSideEffects,
-            const std::string &Name = "", Module *ParentModule = 0);
+  bool HasSideEffects;
   
-  bool getHasSideEffects() const { return AsmHasSideEffects; }
-  void setSideEffects(bool X) { AsmHasSideEffects = X; }
+  InlineAsm(const FunctionType *Ty, const std::string &AsmString,
+            const std::string &Constraints, bool hasSideEffects);
+public:
+
+  /// InlineAsm::get - Return the the specified uniqued inline asm string.
+  ///
+  static InlineAsm *get(const FunctionType *Ty, const std::string &AsmString,
+                        const std::string &Constraints, bool hasSideEffects);
+  
+  bool hasSideEffects() const { return HasSideEffects; }
   
   /// getType - InlineAsm's are always pointers.
   ///
@@ -63,17 +53,6 @@ public:
   ///
   const FunctionType *getFunctionType() const;
 
-  /// getParent - Get the module that this global value is contained inside
-  /// of...
-  Module *getParent() { return Parent; }
-  const Module *getParent() const { return Parent; }
-
-  
-  /// removeFromParent/eraseFromParent - Unlink and unlink/delete this object
-  /// from the module it is embedded into.
-  void removeFromParent();
-  void eraseFromParent();
-  
   virtual void print(std::ostream &O) const { print(O, 0); }
   void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const;
 

llvm/include/llvm/Module.h

@@ -21,7 +21,6 @@
 
 #include "llvm/Function.h"
 #include "llvm/GlobalVariable.h"
-#include "llvm/InlineAsm.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/Support/DataTypes.h"
 
@@ -46,19 +45,11 @@ template<> struct ilist_traits<GlobalVariable>
   static void destroySentinel(GlobalVariable *GV) { delete GV; }
   static iplist<GlobalVariable> &getList(Module *M);
 };
-template<> struct ilist_traits<InlineAsm>
-: public SymbolTableListTraits<InlineAsm, Module, Module> {
-  // createSentinel is used to create a node that marks the end of the list.
-  static InlineAsm *createSentinel();
-  static void destroySentinel(InlineAsm *GV) { delete GV; }
-  static iplist<InlineAsm> &getList(Module *M);
-};
 
 class Module {
 public:
   typedef iplist<GlobalVariable> GlobalListType;
   typedef iplist<Function> FunctionListType;
-  typedef iplist<InlineAsm> InlineAsmListType;
   typedef SetVector<std::string> LibraryListType;
 
   // Global Variable iterators.
@@ -69,10 +60,6 @@ public:
   typedef FunctionListType::iterator                          iterator;
   typedef FunctionListType::const_iterator              const_iterator;
 
-  // Inline Asm iterators.
-  typedef InlineAsmListType::iterator               inlineasm_iterator;
-  typedef InlineAsmListType::const_iterator   const_inlineasm_iterator;
-  
   // Library list iterators.
   typedef LibraryListType::const_iterator lib_iterator;
 
@@ -82,7 +69,6 @@ public:
 private:
   GlobalListType GlobalList;     // The Global Variables in the module
   FunctionListType FunctionList; // The Functions in the module
-  InlineAsmListType InlineAsmList; // The inline asm objects in the module.
   LibraryListType LibraryList;   // The Libraries needed by the module
   std::string GlobalScopeAsm;    // Inline Asm at global scope.
   SymbolTable *SymTab;           // Symbol Table for the module
@@ -193,8 +179,6 @@ public:
         GlobalListType &getGlobalList()             { return GlobalList; }
   const FunctionListType &getFunctionList() const   { return FunctionList; }
         FunctionListType &getFunctionList()         { return FunctionList; }
-  const InlineAsmListType &getInlineAsmList() const { return InlineAsmList; }
-        InlineAsmListType &getInlineAsmList()       { return InlineAsmList; }
 
   /// getSymbolTable() - Get access to the symbol table for the module, where
   /// global variables and functions are identified.
@@ -222,21 +206,6 @@ public:
   size_t                   size() const { return FunctionList.size(); }
   bool                    empty() const { return FunctionList.empty(); }
 
-  // Inline Asm list interface
-  inlineasm_iterator inlineasm_begin() {
-    return InlineAsmList.begin();
-  }
-  const_inlineasm_iterator inlineasm_begin() const {
-    return InlineAsmList.begin();
-  }
-  inlineasm_iterator inlineasm_end() {
-    return InlineAsmList.end();
-  }
-  const_inlineasm_iterator inlineasm_end() const {
-    return InlineAsmList.end();
-  }
-  bool inlineasm_empty() const { return InlineAsmList.empty(); }
-  
   //===--------------------------------------------------------------------===//
   // List of dependent library access functions
 

llvm/lib/VMCore/AsmWriter.cpp

@@ -21,6 +21,7 @@
 #include "llvm/CallingConv.h"
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
+#include "llvm/InlineAsm.h"
 #include "llvm/Instruction.h"
 #include "llvm/Instructions.h"
 #include "llvm/Module.h"
@@ -1270,9 +1271,6 @@ void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
 }
 
 void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
-  SlotMachine SlotTable(getParent());
-  AssemblyWriter W(o, SlotTable, getParent(), AAW);
-  
   assert(0 && "Inline asm printing unimplemented!");
   //W.write(this);
 }

llvm/lib/VMCore/InlineAsm.cpp

@@ -18,33 +18,15 @@
 using namespace llvm;
 
 InlineAsm::InlineAsm(const FunctionType *Ty, const std::string &asmString,
-                     const std::string &constraints, bool hasSideEffects,
-                     const std::string &name, Module *ParentModule)
-  : Value(PointerType::get(Ty), Value::InlineAsmVal, name), 
-    Parent(0), AsmString(asmString), Constraints(constraints), 
-    AsmHasSideEffects(hasSideEffects) {
+                     const std::string &constraints, bool hasSideEffects)
+  : Value(PointerType::get(Ty), Value::InlineAsmVal), AsmString(asmString), 
+    Constraints(constraints), HasSideEffects(hasSideEffects) {
   LeakDetector::addGarbageObject(this);
 
-  if (ParentModule)
-    ParentModule->getInlineAsmList().push_back(this);
+  // FIXME: do various checks on the constraint string and type.
+      
 }
 
 const FunctionType *InlineAsm::getFunctionType() const {
   return cast<FunctionType>(getType()->getElementType());
 }
-
-void InlineAsm::setParent(Module *parent) {
-  if (getParent())
-    LeakDetector::addGarbageObject(this);
-  Parent = parent;
-  if (getParent())
-    LeakDetector::removeGarbageObject(this);
-}
-
-void InlineAsm::removeFromParent() {
-  getParent()->getInlineAsmList().remove(this);
-}
-
-void InlineAsm::eraseFromParent() {
-  getParent()->getInlineAsmList().erase(this);
-}

llvm/lib/VMCore/Module.cpp

@@ -44,30 +44,17 @@ GlobalVariable *ilist_traits<GlobalVariable>::createSentinel() {
   return Ret;
 }
 
-InlineAsm *ilist_traits<InlineAsm>::createSentinel() {
-  InlineAsm *Ret = new InlineAsm(FunctionType::get(Type::VoidTy, 
-                                    std::vector<const Type*>(), false), "", "",
-                                 false);
-  // This should not be garbage monitored.
-  LeakDetector::removeGarbageObject(Ret);
-  return Ret;
-}
-
 iplist<Function> &ilist_traits<Function>::getList(Module *M) {
   return M->getFunctionList();
 }
 iplist<GlobalVariable> &ilist_traits<GlobalVariable>::getList(Module *M) {
   return M->getGlobalList();
 }
-iplist<InlineAsm> &ilist_traits<InlineAsm>::getList(Module *M) {
-  return M->getInlineAsmList();
-}
 
 // Explicit instantiations of SymbolTableListTraits since some of the methods
 // are not in the public header file.
 template class SymbolTableListTraits<GlobalVariable, Module, Module>;
 template class SymbolTableListTraits<Function, Module, Module>;
-template class SymbolTableListTraits<InlineAsm, Module, Module>;
 
 //===----------------------------------------------------------------------===//
 // Primitive Module methods.
@@ -79,8 +66,6 @@ Module::Module(const std::string &MID)
   FunctionList.setParent(this);
   GlobalList.setItemParent(this);
   GlobalList.setParent(this);
-  InlineAsmList.setItemParent(this);
-  InlineAsmList.setParent(this);
   SymTab = new SymbolTable();
 }
 
@@ -90,8 +75,6 @@ Module::~Module() {
   GlobalList.setParent(0);
   FunctionList.clear();
   FunctionList.setParent(0);
-  InlineAsmList.clear();
-  InlineAsmList.setParent(0);
   LibraryList.clear();
   delete SymTab;
 }