X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FModule.h;h=e6303ac7752d2f6131dff709e00ae6b2bb7ff136;hb=3756e70af69096a82b367ee9667e7720ca2201e4;hp=15e0a17e1e5b35020679680c9e95d477024e4115;hpb=2f7d5291de87bfa195884e84dc0efe9705c2215c;p=oota-llvm.git diff --git a/include/llvm/Module.h b/include/llvm/Module.h index 15e0a17e1e5..e6303ac7752 100644 --- a/include/llvm/Module.h +++ b/include/llvm/Module.h @@ -20,7 +20,7 @@ #include "llvm/GlobalAlias.h" #include "llvm/Metadata.h" #include "llvm/ADT/OwningPtr.h" -#include "llvm/System/DataTypes.h" +#include "llvm/Support/DataTypes.h" #include namespace llvm { @@ -28,7 +28,9 @@ namespace llvm { class FunctionType; class GVMaterializer; class LLVMContext; -class MDSymbolTable; +class StructType; +template struct DenseMapInfo; +template class DenseMap; template<> struct ilist_traits : public SymbolTableListTraits { @@ -47,21 +49,39 @@ template<> struct ilist_traits private: mutable ilist_node Sentinel; }; + template<> struct ilist_traits : public SymbolTableListTraits { // createSentinel is used to create a node that marks the end of the list. - static GlobalVariable *createSentinel(); - static void destroySentinel(GlobalVariable *GV) { delete GV; } + GlobalVariable *createSentinel() const { + return static_cast(&Sentinel); + } + static void destroySentinel(GlobalVariable*) {} + + GlobalVariable *provideInitialHead() const { return createSentinel(); } + GlobalVariable *ensureHead(GlobalVariable*) const { return createSentinel(); } + static void noteHead(GlobalVariable*, GlobalVariable*) {} +private: + mutable ilist_node Sentinel; }; + template<> struct ilist_traits : public SymbolTableListTraits { // createSentinel is used to create a node that marks the end of the list. - static GlobalAlias *createSentinel(); - static void destroySentinel(GlobalAlias *GA) { delete GA; } + GlobalAlias *createSentinel() const { + return static_cast(&Sentinel); + } + static void destroySentinel(GlobalAlias*) {} + + GlobalAlias *provideInitialHead() const { return createSentinel(); } + GlobalAlias *ensureHead(GlobalAlias*) const { return createSentinel(); } + static void noteHead(GlobalAlias*, GlobalAlias*) {} +private: + mutable ilist_node Sentinel; }; template<> struct ilist_traits - : public SymbolTableListTraits { + : public ilist_default_traits { // createSentinel is used to get hold of a node that marks the end of // the list... NamedMDNode *createSentinel() const { @@ -72,8 +92,8 @@ template<> struct ilist_traits NamedMDNode *provideInitialHead() const { return createSentinel(); } NamedMDNode *ensureHead(NamedMDNode*) const { return createSentinel(); } static void noteHead(NamedMDNode*, NamedMDNode*) {} - void addNodeToList(NamedMDNode *N); - void removeNodeFromList(NamedMDNode *N); + void addNodeToList(NamedMDNode *) {} + void removeNodeFromList(NamedMDNode *) {} private: mutable ilist_node Sentinel; }; @@ -100,7 +120,7 @@ public: /// The type for the list of aliases. typedef iplist AliasListType; /// The type for the list of named metadata. - typedef iplist NamedMDListType; + typedef ilist NamedMDListType; /// The type for the list of dependent libraries. typedef std::vector LibraryListType; @@ -133,6 +153,39 @@ public: /// An enumeration for describing the size of a pointer on the target machine. enum PointerSize { AnyPointerSize, Pointer32, Pointer64 }; + /// An enumeration for the supported behaviors of module flags. The following + /// module flags behavior values are supported: + /// + /// Value Behavior + /// ----- -------- + /// 1 Error + /// Emits an error if two values disagree. + /// + /// 2 Warning + /// Emits a warning if two values disagree. + /// + /// 3 Require + /// Emits an error when the specified value is not present + /// or doesn't have the specified value. It is an error for + /// two (or more) llvm.module.flags with the same ID to have + /// the Require behavior but different values. There may be + /// multiple Require flags per ID. + /// + /// 4 Override + /// Uses the specified value if the two values disagree. It + /// is an error for two (or more) llvm.module.flags with the + /// same ID to have the Override behavior but different + /// values. + enum ModFlagBehavior { Error = 1, Warning = 2, Require = 3, Override = 4 }; + + struct ModuleFlagEntry { + ModFlagBehavior Behavior; + MDString *Key; + Value *Val; + ModuleFlagEntry(ModFlagBehavior B, MDString *K, Value *V) + : Behavior(B), Key(K), Val(V) {} + }; + /// @} /// @name Member Variables /// @{ @@ -146,12 +199,11 @@ private: NamedMDListType NamedMDList; ///< The named metadata in the module std::string GlobalScopeAsm; ///< Inline Asm at global scope. ValueSymbolTable *ValSymTab; ///< Symbol table for values - TypeSymbolTable *TypeSymTab; ///< Symbol table for types OwningPtr Materializer; ///< Used to materialize GlobalValues std::string ModuleID; ///< Human readable identifier for the module std::string TargetTriple; ///< Platform target triple Module compiled on std::string DataLayout; ///< Target data description - MDSymbolTable *NamedMDSymTab; ///< NamedMDNode names. + void *NamedMDSymTab; ///< NamedMDNode names. friend class Constant; @@ -197,11 +249,11 @@ public: /// Get any module-scope inline assembly blocks. /// @returns a string containing the module-scope inline assembly blocks. const std::string &getModuleInlineAsm() const { return GlobalScopeAsm; } - + /// @} /// @name Module Level Mutators /// @{ - + /// Set the module identifier. void setModuleIdentifier(StringRef ID) { ModuleID = ID; } @@ -212,22 +264,27 @@ public: void setTargetTriple(StringRef T) { TargetTriple = T; } /// Set the module-scope inline assembly blocks. - void setModuleInlineAsm(StringRef Asm) { GlobalScopeAsm = Asm; } + void setModuleInlineAsm(StringRef Asm) { + GlobalScopeAsm = Asm; + if (!GlobalScopeAsm.empty() && + GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n') + GlobalScopeAsm += '\n'; + } /// Append to the module-scope inline assembly blocks, automatically inserting /// a separating newline if necessary. void appendModuleInlineAsm(StringRef Asm) { + GlobalScopeAsm += Asm; if (!GlobalScopeAsm.empty() && GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n') GlobalScopeAsm += '\n'; - GlobalScopeAsm += Asm; } /// @} /// @name Generic Value Accessors /// @{ - /// getNamedValue - Return the first global value in the module with + /// getNamedValue - Return the global value in the module with /// the specified name, of arbitrary type. This method returns null /// if a global with the specified name is not found. GlobalValue *getNamedValue(StringRef Name) const; @@ -235,12 +292,19 @@ public: /// getMDKindID - Return a unique non-zero ID for the specified metadata kind. /// This ID is uniqued across modules in the current LLVMContext. unsigned getMDKindID(StringRef Name) const; - + /// getMDKindNames - Populate client supplied SmallVector with the name for - /// custom metadata IDs registered in this LLVMContext. ID #0 is not used, - /// so it is filled in as an empty string. + /// custom metadata IDs registered in this LLVMContext. void getMDKindNames(SmallVectorImpl &Result) const; + + typedef DenseMap > + NumeredTypesMapTy; + + /// getTypeByName - Return the type with the specified name, or null if there + /// is none by that name. + StructType *getTypeByName(StringRef Name) const; + /// @} /// @name Function Accessors /// @{ @@ -254,10 +318,10 @@ public: /// the existing function. /// 4. Finally, the function exists but has the wrong prototype: return the /// function with a constantexpr cast to the right prototype. - Constant *getOrInsertFunction(StringRef Name, const FunctionType *T, + Constant *getOrInsertFunction(StringRef Name, FunctionType *T, AttrListPtr AttributeList); - Constant *getOrInsertFunction(StringRef Name, const FunctionType *T); + Constant *getOrInsertFunction(StringRef Name, FunctionType *T); /// getOrInsertFunction - Look up the specified function in the module symbol /// table. If it does not exist, add a prototype for the function and return @@ -268,16 +332,16 @@ public: /// clients to use. Constant *getOrInsertFunction(StringRef Name, AttrListPtr AttributeList, - const Type *RetTy, ...) END_WITH_NULL; + Type *RetTy, ...) END_WITH_NULL; /// getOrInsertFunction - Same as above, but without the attributes. - Constant *getOrInsertFunction(StringRef Name, const Type *RetTy, ...) + Constant *getOrInsertFunction(StringRef Name, Type *RetTy, ...) END_WITH_NULL; Constant *getOrInsertTargetIntrinsic(StringRef Name, - const FunctionType *Ty, + FunctionType *Ty, AttrListPtr AttributeList); - + /// getFunction - Look up the specified function in the module symbol table. /// If it does not exist, return null. Function *getFunction(StringRef Name) const; @@ -293,7 +357,7 @@ public: GlobalVariable *getGlobalVariable(StringRef Name, bool AllowInternal = false) const; - /// getNamedGlobal - Return the first global variable in the module with the + /// getNamedGlobal - Return the global variable in the module with the /// specified name, of arbitrary type. This method returns null if a global /// with the specified name is not found. GlobalVariable *getNamedGlobal(StringRef Name) const { @@ -305,15 +369,15 @@ public: /// 1. If it does not exist, add a declaration of the global and return it. /// 2. Else, the global exists but has the wrong type: return the function /// with a constantexpr cast to the right type. - /// 3. Finally, if the existing global is the correct delclaration, return + /// 3. Finally, if the existing global is the correct declaration, return /// the existing global. - Constant *getOrInsertGlobal(StringRef Name, const Type *Ty); + Constant *getOrInsertGlobal(StringRef Name, Type *Ty); /// @} /// @name Global Alias Accessors /// @{ - /// getNamedAlias - Return the first global alias in the module with the + /// getNamedAlias - Return the global alias in the module with the /// specified name, of arbitrary type. This method returns null if a global /// with the specified name is not found. GlobalAlias *getNamedAlias(StringRef Name) const; @@ -321,34 +385,44 @@ public: /// @} /// @name Named Metadata Accessors /// @{ - - /// getNamedMetadata - Return the first NamedMDNode in the module with the - /// specified name. This method returns null if a NamedMDNode with the + + /// getNamedMetadata - Return the NamedMDNode in the module with the + /// specified name. This method returns null if a NamedMDNode with the /// specified name is not found. - NamedMDNode *getNamedMetadata(StringRef Name) const; - NamedMDNode *getNamedMetadataUsingTwine(Twine Name) const; + NamedMDNode *getNamedMetadata(const Twine &Name) const; - /// getOrInsertNamedMetadata - Return the first named MDNode in the module - /// with the specified name. This method returns a new NamedMDNode if a + /// getOrInsertNamedMetadata - Return the named MDNode in the module + /// with the specified name. This method returns a new NamedMDNode if a /// NamedMDNode with the specified name is not found. NamedMDNode *getOrInsertNamedMetadata(StringRef Name); + /// eraseNamedMetadata - Remove the given NamedMDNode from this module + /// and delete it. + void eraseNamedMetadata(NamedMDNode *NMD); + /// @} -/// @name Type Accessors +/// @name Module Flags Accessors /// @{ - /// addTypeName - Insert an entry in the symbol table mapping Str to Type. If - /// there is already an entry for this name, true is returned and the symbol - /// table is not modified. - bool addTypeName(StringRef Name, const Type *Ty); + /// getModuleFlagsMetadata - Returns the module flags in the provided vector. + void getModuleFlagsMetadata(SmallVectorImpl &Flags) const; + + /// getModuleFlagsMetadata - Returns the NamedMDNode in the module that + /// represents module-level flags. This method returns null if there are no + /// module-level flags. + NamedMDNode *getModuleFlagsMetadata() const; - /// getTypeName - If there is at least one entry in the symbol table for the - /// specified type, return it. - std::string getTypeName(const Type *Ty) const; + /// getOrInsertModuleFlagsMetadata - Returns the NamedMDNode in the module + /// that represents module-level flags. If module-level flags aren't found, + /// it creates the named metadata that contains them. + NamedMDNode *getOrInsertModuleFlagsMetadata(); - /// getTypeByName - Return the type with the specified name in this module, or - /// null if there is none by that name. - const Type *getTypeByName(StringRef Name) const; + /// addModuleFlag - Add a module-level flag to the module-level flags + /// metadata. It will create the module-level flags named metadata if it + /// doesn't already exist. + void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, Value *Val); + void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, uint32_t Val); + void addModuleFlag(MDNode *Node); /// @} /// @name Materialization @@ -422,53 +496,34 @@ public: /// Get the Module's list of named metadata (constant). const NamedMDListType &getNamedMDList() const { return NamedMDList; } /// Get the Module's list of named metadata. - NamedMDListType &getNamedMDList() { return NamedMDList; } - static iplist Module::*getSublistAccess(NamedMDNode *) { + NamedMDListType &getNamedMDList() { return NamedMDList; } + static ilist Module::*getSublistAccess(NamedMDNode*) { return &Module::NamedMDList; } /// 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. ValueSymbolTable &getValueSymbolTable() { return *ValSymTab; } - /// Get the symbol table of types - const TypeSymbolTable &getTypeSymbolTable() const { return *TypeSymTab; } - /// Get the Module's symbol table of types - TypeSymbolTable &getTypeSymbolTable() { return *TypeSymTab; } - /// Get the symbol table of named metadata - const MDSymbolTable &getMDSymbolTable() const { return *NamedMDSymTab; } - /// Get the Module's symbol table of named metadata - MDSymbolTable &getMDSymbolTable() { return *NamedMDSymTab; } /// @} /// @name Global Variable Iteration /// @{ - /// Get an iterator to the first global variable global_iterator global_begin() { return GlobalList.begin(); } - /// Get a constant iterator to the first global variable const_global_iterator global_begin() const { return GlobalList.begin(); } - /// Get an iterator to the last global variable global_iterator global_end () { return GlobalList.end(); } - /// Get a constant iterator to the last global variable const_global_iterator global_end () const { return GlobalList.end(); } - /// Determine if the list of globals is empty. bool global_empty() const { return GlobalList.empty(); } /// @} /// @name Function Iteration /// @{ - /// Get an iterator to the first function. iterator begin() { return FunctionList.begin(); } - /// Get a constant iterator to the first function. const_iterator begin() const { return FunctionList.begin(); } - /// Get an iterator to the last function. iterator end () { return FunctionList.end(); } - /// Get a constant iterator to the last function. const_iterator end () const { return FunctionList.end(); } - /// Determine how many functions are in the Module's list of functions. size_t size() const { return FunctionList.size(); } - /// Determine if the list of functions is empty. bool empty() const { return FunctionList.empty(); } /// @} @@ -492,17 +547,11 @@ public: /// @name Alias Iteration /// @{ - /// Get an iterator to the first alias. alias_iterator alias_begin() { return AliasList.begin(); } - /// Get a constant iterator to the first alias. const_alias_iterator alias_begin() const { return AliasList.begin(); } - /// Get an iterator to the last alias. alias_iterator alias_end () { return AliasList.end(); } - /// Get a constant iterator to the last alias. const_alias_iterator alias_end () const { return AliasList.end(); } - /// Determine how many aliases are in the Module's list of aliases. size_t alias_size () const { return AliasList.size(); } - /// Determine if the list of aliases is empty. bool alias_empty() const { return AliasList.empty(); } @@ -510,23 +559,17 @@ public: /// @name Named Metadata Iteration /// @{ - /// Get an iterator to the first named metadata. named_metadata_iterator named_metadata_begin() { return NamedMDList.begin(); } - /// Get a constant iterator to the first named metadata. const_named_metadata_iterator named_metadata_begin() const { return NamedMDList.begin(); } - - /// Get an iterator to the last named metadata. + named_metadata_iterator named_metadata_end() { return NamedMDList.end(); } - /// Get a constant iterator to the last named metadata. const_named_metadata_iterator named_metadata_end() const { return NamedMDList.end(); } - - /// Determine how many NamedMDNodes are in the Module's list of named metadata. + size_t named_metadata_size() const { return NamedMDList.size(); } - /// Determine if the list of named metadata is empty. bool named_metadata_empty() const { return NamedMDList.empty(); } @@ -534,11 +577,13 @@ public: /// @name Utility functions for printing and dumping Module objects /// @{ - /// Print the module to an output stream with AssemblyAnnotationWriter. + /// Print the module to an output stream with an optional + /// AssemblyAnnotationWriter. void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const; - + /// Dump the module to stderr (for debugging). void dump() const; + /// This function causes all the subinstructions to "let go" of all references /// that they are maintaining. This allows one to 'delete' a whole class at /// a time, even though there may be circular references... first all