mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
328 lines
13 KiB
C++
328 lines
13 KiB
C++
//===-- llvm/Module.h - C++ class to represent a VM module ------*- C++ -*-===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// @file This file contains the declarations for the Module class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MODULE_H
|
|
#define LLVM_MODULE_H
|
|
|
|
#include "llvm/Function.h"
|
|
#include "llvm/GlobalVariable.h"
|
|
#include "llvm/ADT/SetVector.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
|
|
namespace llvm {
|
|
|
|
class GlobalVariable;
|
|
class GlobalValueRefMap; // Used by ConstantVals.cpp
|
|
class FunctionType;
|
|
class SymbolTable;
|
|
|
|
template<> struct ilist_traits<Function>
|
|
: public SymbolTableListTraits<Function, Module, 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);
|
|
};
|
|
template<> struct ilist_traits<GlobalVariable>
|
|
: public SymbolTableListTraits<GlobalVariable, Module, 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);
|
|
};
|
|
|
|
/// A Module instance is used to store all the information related to an
|
|
/// LLVM module. Modules are the top level container of all other LLVM
|
|
/// Intermediate Representation (IR) objects. Each module directly contains a
|
|
/// list of globals variables, a list of functions, a list of libraries (or
|
|
/// other modules) this module depends on, a symbol table, and various data
|
|
/// about the target's characteristics.
|
|
///
|
|
/// A module maintains a GlobalValRefMap object that is used to hold all
|
|
/// constant references to global variables in the module. When a global
|
|
/// variable is destroyed, it should have no entries in the GlobalValueRefMap.
|
|
/// @brief The main container class for the LLVM Intermediate Representation.
|
|
class Module {
|
|
/// @name Types And Enumerations
|
|
/// @{
|
|
public:
|
|
/// The type for the list of global variables.
|
|
typedef iplist<GlobalVariable> GlobalListType;
|
|
/// The type for the list of functions.
|
|
typedef iplist<Function> FunctionListType;
|
|
|
|
/// The type for the list of dependent libraries.
|
|
typedef SetVector<std::string> LibraryListType;
|
|
|
|
/// The Global Variable iterator.
|
|
typedef GlobalListType::iterator global_iterator;
|
|
/// The Global Variable constant iterator.
|
|
typedef GlobalListType::const_iterator const_global_iterator;
|
|
|
|
/// The Function iterators.
|
|
typedef FunctionListType::iterator iterator;
|
|
/// The Function constant iterator
|
|
typedef FunctionListType::const_iterator const_iterator;
|
|
|
|
/// The Library list iterator.
|
|
typedef LibraryListType::const_iterator lib_iterator;
|
|
|
|
/// An enumeration for describing the endianess of the target machine.
|
|
enum Endianness { AnyEndianness, LittleEndian, BigEndian };
|
|
|
|
/// An enumeration for describing the size of a pointer on the target machine.
|
|
enum PointerSize { AnyPointerSize, Pointer32, Pointer64 };
|
|
|
|
/// @}
|
|
/// @name Member Variables
|
|
/// @{
|
|
private:
|
|
GlobalListType GlobalList; ///< The Global Variables in the module
|
|
FunctionListType FunctionList; ///< The Functions 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
|
|
std::string ModuleID; ///< Human readable identifier for the module
|
|
std::string TargetTriple; ///< Platform target triple Module compiled on
|
|
std::string DataLayout; ///< Target data description
|
|
|
|
friend class Constant;
|
|
|
|
/// @}
|
|
/// @name Constructors
|
|
/// @{
|
|
public:
|
|
/// The Module constructor. Note that there is no default constructor. You
|
|
/// must provide a name for the module upon construction.
|
|
Module(const std::string &ModuleID);
|
|
/// The module destructor. This will dropAllReferences.
|
|
~Module();
|
|
|
|
/// @}
|
|
/// @name Module Level Accessors
|
|
/// @{
|
|
public:
|
|
/// Get the module identifier which is, essentially, the name of the module.
|
|
/// @returns the module identifier as a string
|
|
const std::string &getModuleIdentifier() const { return ModuleID; }
|
|
|
|
/// Get the data layout string for the module's target platform. This encodes
|
|
/// the type sizes and alignments expected by this module.
|
|
/// @returns the data layout as a string
|
|
std::string getDataLayout() const { return DataLayout; }
|
|
|
|
/// Get the target triple which is a string describing the target host.
|
|
/// @returns a string containing the target triple.
|
|
const std::string &getTargetTriple() const { return TargetTriple; }
|
|
|
|
/// Get the target endian information.
|
|
/// @returns Endianess - an enumeration for the endianess of the target
|
|
Endianness getEndianness() const;
|
|
|
|
/// Get the target pointer size.
|
|
/// @returns PointerSize - an enumeration for the size of the target's pointer
|
|
PointerSize getPointerSize() const;
|
|
|
|
/// 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
|
|
/// @{
|
|
public:
|
|
|
|
/// Set the module identifier.
|
|
void setModuleIdentifier(const std::string &ID) { ModuleID = ID; }
|
|
|
|
/// Set the data layout
|
|
void setDataLayout(std::string DL) { DataLayout = DL; }
|
|
|
|
/// Set the target triple.
|
|
void setTargetTriple(const std::string &T) { TargetTriple = T; }
|
|
|
|
/// Set the target endian information.
|
|
void setEndianness(Endianness E);
|
|
|
|
/// Set the target pointer size.
|
|
void setPointerSize(PointerSize PS);
|
|
|
|
/// Set the module-scope inline assembly blocks.
|
|
void setModuleInlineAsm(const std::string &Asm) { GlobalScopeAsm = Asm; }
|
|
|
|
/// @}
|
|
/// @name Function Accessors
|
|
/// @{
|
|
public:
|
|
/// getOrInsertFunction - Look up the specified function in the module symbol
|
|
/// table. If it does not exist, add a prototype for the function and return
|
|
/// it.
|
|
Function *getOrInsertFunction(const std::string &Name, const 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
|
|
/// it. This version of the method takes a null terminated list of function
|
|
/// arguments, which makes it easier for clients to use.
|
|
Function *getOrInsertFunction(const std::string &Name, const Type *RetTy,...)
|
|
END_WITH_NULL;
|
|
|
|
/// getFunction - Look up the specified function in the module symbol table.
|
|
/// If it does not exist, return null.
|
|
Function *getFunction(const std::string &Name, const FunctionType *Ty);
|
|
|
|
/// getMainFunction - This function looks up main efficiently. This is such a
|
|
/// common case, that it is a method in Module. If main cannot be found, a
|
|
/// null pointer is returned.
|
|
Function *getMainFunction();
|
|
|
|
/// getNamedFunction - Return the first function in the module with the
|
|
/// specified name, of arbitrary type. This method returns null if a function
|
|
/// with the specified name is not found.
|
|
Function *getNamedFunction(const std::string &Name) const;
|
|
|
|
/// @}
|
|
/// @name Global Variable Accessors
|
|
/// @{
|
|
public:
|
|
/// getGlobalVariable - Look up the specified global variable in the module
|
|
/// symbol table. If it does not exist, return null. The type argument
|
|
/// should be the underlying type of the global, i.e., it should not have
|
|
/// the top-level PointerType, which represents the address of the global.
|
|
/// If AllowInternal is set to true, this function will return types that
|
|
/// have InternalLinkage. By default, these types are not returned.
|
|
GlobalVariable *getGlobalVariable(const std::string &Name, const Type *Ty,
|
|
bool AllowInternal = false);
|
|
|
|
/// getNamedGlobal - Return the first 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(const std::string &Name) const;
|
|
|
|
/// @}
|
|
/// @name Type Accessors
|
|
/// @{
|
|
public:
|
|
/// 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(const std::string &Name, const Type *Ty);
|
|
|
|
/// 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;
|
|
|
|
/// getTypeByName - Return the type with the specified name in this module, or
|
|
/// null if there is none by that name.
|
|
const Type *getTypeByName(const std::string &Name) const;
|
|
|
|
/// @}
|
|
/// @name Direct access to the globals list, functions list, and symbol table
|
|
/// @{
|
|
public:
|
|
/// Get the Module's list of global variables (constant).
|
|
const GlobalListType &getGlobalList() const { return GlobalList; }
|
|
/// Get the Module's list of global variables.
|
|
GlobalListType &getGlobalList() { return 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; }
|
|
/// Get the symbol table of global variable and function identifiers
|
|
const SymbolTable &getSymbolTable() const { return *SymTab; }
|
|
/// Get the Module's symbol table of global variable and function identifiers.
|
|
SymbolTable &getSymbolTable() { return *SymTab; }
|
|
|
|
/// @}
|
|
/// @name Global Variable Iteration
|
|
/// @{
|
|
public:
|
|
/// 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
|
|
/// @{
|
|
public:
|
|
/// 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(); }
|
|
|
|
/// @}
|
|
/// @name Dependent Library Iteration
|
|
/// @{
|
|
public:
|
|
/// @brief Get a constant iterator to beginning of dependent library list.
|
|
inline lib_iterator lib_begin() const { return LibraryList.begin(); }
|
|
/// @brief Get a constant iterator to end of dependent library list.
|
|
inline lib_iterator lib_end() const { return LibraryList.end(); }
|
|
/// @brief Returns the number of items in the list of libraries.
|
|
inline size_t lib_size() const { return LibraryList.size(); }
|
|
/// @brief Add a library to the list of dependent libraries
|
|
inline void addLibrary(const std::string& Lib){ LibraryList.insert(Lib); }
|
|
/// @brief Remove a library from the list of dependent libraries
|
|
inline void removeLibrary(const std::string& Lib) { LibraryList.remove(Lib); }
|
|
/// @brief Get all the libraries
|
|
inline const LibraryListType& getLibraries() const { return LibraryList; }
|
|
|
|
/// @}
|
|
/// @name Utility functions for printing and dumping Module objects
|
|
/// @{
|
|
public:
|
|
/// Print the module to an output stream
|
|
void print(llvm_ostream &OS) const {
|
|
if (OS.stream()) print(*OS.stream(), 0);
|
|
}
|
|
void print(std::ostream &OS) const { print(OS, 0); }
|
|
/// Print the module to an output stream with AssemblyAnnotationWriter.
|
|
void print(llvm_ostream &OS, AssemblyAnnotationWriter *AAW) const {
|
|
if (OS.stream()) print(*OS.stream(), AAW);
|
|
}
|
|
void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const;
|
|
/// Dump the module to std::cerr (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
|
|
/// references are dropped, and all use counts go to zero. Then everything
|
|
/// is delete'd for real. Note that no operations are valid on an object
|
|
/// that has "dropped all references", except operator delete.
|
|
void dropAllReferences();
|
|
/// @}
|
|
};
|
|
|
|
/// An iostream inserter for modules.
|
|
inline std::ostream &operator<<(std::ostream &O, const Module &M) {
|
|
M.print(O);
|
|
return O;
|
|
}
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|