mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 16:29:20 +00:00
of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools. Patches for Clang and LLVM-GCC to follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74614 91177308-0d34-0410-b5e6-96231b3b80d8
431 lines
18 KiB
C++
431 lines
18 KiB
C++
//===-- llvm/Module.h - C++ class to represent a VM module ------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// @file
|
|
/// Module.h 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/GlobalAlias.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include <vector>
|
|
|
|
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 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; }
|
|
};
|
|
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; }
|
|
};
|
|
|
|
/// 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 aliases.
|
|
typedef iplist<GlobalAlias> AliasListType;
|
|
|
|
/// The type for the list of dependent libraries.
|
|
typedef std::vector<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 Global Alias iterators.
|
|
typedef AliasListType::iterator alias_iterator;
|
|
/// The Global Alias constant iterator
|
|
typedef AliasListType::const_iterator const_alias_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:
|
|
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
|
|
LibraryListType LibraryList; ///< The Libraries needed by the module
|
|
std::string GlobalScopeAsm; ///< Inline Asm at global scope.
|
|
ValueSymbolTable *ValSymTab; ///< Symbol table for values
|
|
TypeSymbolTable *TypeSymTab; ///< Symbol table for types
|
|
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.
|
|
explicit Module(const std::string &ModuleID, LLVMContext* C);
|
|
/// 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
|
|
const 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 the global data context.
|
|
/// @returns LLVMContext - a container for LLVM's global information
|
|
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; }
|
|
/// @}
|
|
/// @name Module Level Mutators
|
|
/// @{
|
|
public:
|
|
|
|
/// Set the module identifier.
|
|
void setModuleIdentifier(const std::string &ID) { ModuleID = ID; }
|
|
|
|
/// Set the data layout
|
|
void setDataLayout(const std::string& DL) { DataLayout = DL; }
|
|
|
|
/// Set the target triple.
|
|
void setTargetTriple(const std::string &T) { TargetTriple = T; }
|
|
|
|
/// Set the module-scope inline assembly blocks.
|
|
void setModuleInlineAsm(const std::string &Asm) { GlobalScopeAsm = Asm; }
|
|
|
|
/// Append to the module-scope inline assembly blocks, automatically
|
|
/// appending a newline to the end.
|
|
void appendModuleInlineAsm(const std::string &Asm) {
|
|
GlobalScopeAsm += Asm;
|
|
GlobalScopeAsm += '\n';
|
|
}
|
|
|
|
/// @}
|
|
/// @name Generic Value Accessors
|
|
/// @{
|
|
|
|
/// getNamedValue - Return the first 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(const std::string &Name) const;
|
|
GlobalValue *getNamedValue(const char *Name) const;
|
|
|
|
/// @}
|
|
/// @name Function Accessors
|
|
/// @{
|
|
public:
|
|
/// getOrInsertFunction - Look up the specified function in the module symbol
|
|
/// table. Four possibilities:
|
|
/// 1. If it does not exist, add a prototype for the function and return it.
|
|
/// 2. If it exists, and has a local linkage, the existing function is
|
|
/// renamed and a new one is inserted.
|
|
/// 3. Otherwise, if the existing function has the correct prototype, return
|
|
/// 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(const std::string &Name, const FunctionType *T,
|
|
AttrListPtr AttributeList);
|
|
|
|
Constant *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 function guarantees to return a constant of pointer to the
|
|
/// specified function type or a ConstantExpr BitCast of that type if the
|
|
/// named function has a different type. This version of the method takes a
|
|
/// null terminated list of function arguments, which makes it easier for
|
|
/// clients to use.
|
|
Constant *getOrInsertFunction(const std::string &Name,
|
|
AttrListPtr AttributeList,
|
|
const Type *RetTy, ...) END_WITH_NULL;
|
|
|
|
Constant *getOrInsertFunction(const std::string &Name, const Type *RetTy, ...)
|
|
END_WITH_NULL;
|
|
|
|
Constant *getOrInsertTargetIntrinsic(const std::string &Name,
|
|
const FunctionType *Ty,
|
|
AttrListPtr AttributeList);
|
|
|
|
/// 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;
|
|
Function *getFunction(const char *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. 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,
|
|
bool AllowInternal = false) const;
|
|
|
|
/// 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 {
|
|
return getGlobalVariable(Name, true);
|
|
}
|
|
|
|
/// getOrInsertGlobal - Look up the specified global in the module symbol
|
|
/// table.
|
|
/// 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
|
|
/// the existing global.
|
|
Constant *getOrInsertGlobal(const std::string &Name, const Type *Ty);
|
|
|
|
/// @}
|
|
/// @name Global Alias Accessors
|
|
/// @{
|
|
public:
|
|
/// getNamedAlias - Return the first 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(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; }
|
|
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.
|
|
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; }
|
|
|
|
/// @}
|
|
/// @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
|
|
void addLibrary(const std::string& Lib);
|
|
/// @brief Remove a library from the list of dependent libraries
|
|
void removeLibrary(const std::string& Lib);
|
|
/// @brief Get all the libraries
|
|
inline const LibraryListType& getLibraries() const { return LibraryList; }
|
|
|
|
/// @}
|
|
/// @name Alias Iteration
|
|
/// @{
|
|
public:
|
|
/// 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 functions 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(); }
|
|
|
|
/// @}
|
|
/// @name Utility functions for printing and dumping Module objects
|
|
/// @{
|
|
public:
|
|
/// Print the module to an output stream with AssemblyAnnotationWriter.
|
|
void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const;
|
|
void print(std::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
|
|
/// 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, 0);
|
|
return O;
|
|
}
|
|
inline raw_ostream &operator<<(raw_ostream &O, const Module &M) {
|
|
M.print(O, 0);
|
|
return O;
|
|
}
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|