mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-19 17:33:29 +00:00
6fbcc26f14
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
215 lines
9.4 KiB
C++
215 lines
9.4 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declarations for the Module class that is used to
|
|
// maintain all the information related to a VM module.
|
|
//
|
|
// A module also 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MODULE_H
|
|
#define LLVM_MODULE_H
|
|
|
|
#include "llvm/Function.h"
|
|
#include "llvm/GlobalVariable.h"
|
|
class GlobalVariable;
|
|
class GlobalValueRefMap; // Used by ConstantVals.cpp
|
|
class ConstantPointerRef;
|
|
class FunctionType;
|
|
class SymbolTable;
|
|
|
|
template<> struct ilist_traits<Function>
|
|
: public SymbolTableListTraits<Function, Module, Module> {
|
|
// createNode is used to create a node that marks the end of the list...
|
|
static Function *createNode();
|
|
static iplist<Function> &getList(Module *M);
|
|
};
|
|
template<> struct ilist_traits<GlobalVariable>
|
|
: public SymbolTableListTraits<GlobalVariable, Module, Module> {
|
|
// createNode is used to create a node that marks the end of the list...
|
|
static GlobalVariable *createNode();
|
|
static iplist<GlobalVariable> &getList(Module *M);
|
|
};
|
|
|
|
struct Module : public Annotable {
|
|
typedef iplist<GlobalVariable> GlobalListType;
|
|
typedef iplist<Function> FunctionListType;
|
|
|
|
// Global Variable iterators...
|
|
typedef GlobalListType::iterator giterator;
|
|
typedef GlobalListType::const_iterator const_giterator;
|
|
typedef std::reverse_iterator<giterator> reverse_giterator;
|
|
typedef std::reverse_iterator<const_giterator> const_reverse_giterator;
|
|
|
|
// Function iterators...
|
|
typedef FunctionListType::iterator iterator;
|
|
typedef FunctionListType::const_iterator const_iterator;
|
|
typedef std::reverse_iterator<iterator> reverse_iterator;
|
|
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
|
|
|
|
enum Endianness { AnyEndianness, LittleEndian, BigEndian };
|
|
enum PointerSize { AnyPointerSize, Pointer32, Pointer64 };
|
|
|
|
private:
|
|
GlobalListType GlobalList; // The Global Variables in the module
|
|
FunctionListType FunctionList; // The Functions in the module
|
|
GlobalValueRefMap *GVRefMap; // Keep track of GlobalValueRef's
|
|
SymbolTable *SymTab; // Symbol Table for the module
|
|
std::string ModuleID; // Human readable identifier for the module
|
|
|
|
// These flags are probably not the right long-term way to handle this kind of
|
|
// target information, but it is sufficient for now.
|
|
Endianness Endian; // True if target is little endian
|
|
PointerSize PtrSize; // True if target has 32-bit pointers (false = 64-bit)
|
|
|
|
// Accessor for the underlying GVRefMap... only through the Constant class...
|
|
friend class Constant;
|
|
friend class ConstantPointerRef;
|
|
void mutateConstantPointerRef(GlobalValue *OldGV, GlobalValue *NewGV);
|
|
ConstantPointerRef *getConstantPointerRef(GlobalValue *GV);
|
|
void destroyConstantPointerRef(ConstantPointerRef *CPR);
|
|
|
|
public:
|
|
Module(const std::string &ModuleID);
|
|
~Module();
|
|
|
|
const std::string &getModuleIdentifier() const { return ModuleID; }
|
|
|
|
/// Target endian information...
|
|
Endianness getEndianness() const { return Endian; }
|
|
void setEndianness(Endianness E) { Endian = E; }
|
|
|
|
/// Target Pointer Size information...
|
|
PointerSize getPointerSize() const { return PtrSize; }
|
|
void setPointerSize(PointerSize PS) { PtrSize = PS; }
|
|
|
|
/// 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,...);
|
|
|
|
/// 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);
|
|
|
|
/// 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);
|
|
|
|
/// Get the underlying elements of the Module...
|
|
inline const GlobalListType &getGlobalList() const { return GlobalList; }
|
|
inline GlobalListType &getGlobalList() { return GlobalList; }
|
|
inline const FunctionListType &getFunctionList() const { return FunctionList;}
|
|
inline FunctionListType &getFunctionList() { return FunctionList;}
|
|
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Symbol table support functions...
|
|
|
|
/// getSymbolTable() - Get access to the symbol table for the module, where
|
|
/// global variables and functions are identified.
|
|
///
|
|
inline SymbolTable &getSymbolTable() { return *SymTab; }
|
|
inline const SymbolTable &getSymbolTable() const { return *SymTab; }
|
|
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Module iterator forwarding functions
|
|
//
|
|
inline giterator gbegin() { return GlobalList.begin(); }
|
|
inline const_giterator gbegin() const { return GlobalList.begin(); }
|
|
inline giterator gend () { return GlobalList.end(); }
|
|
inline const_giterator gend () const { return GlobalList.end(); }
|
|
|
|
inline reverse_giterator grbegin() { return GlobalList.rbegin(); }
|
|
inline const_reverse_giterator grbegin() const { return GlobalList.rbegin(); }
|
|
inline reverse_giterator grend () { return GlobalList.rend(); }
|
|
inline const_reverse_giterator grend () const { return GlobalList.rend(); }
|
|
|
|
inline unsigned gsize() const { return GlobalList.size(); }
|
|
inline bool gempty() const { return GlobalList.empty(); }
|
|
inline const GlobalVariable &gfront() const { return GlobalList.front(); }
|
|
inline GlobalVariable &gfront() { return GlobalList.front(); }
|
|
inline const GlobalVariable &gback() const { return GlobalList.back(); }
|
|
inline GlobalVariable &gback() { return GlobalList.back(); }
|
|
|
|
|
|
|
|
inline iterator begin() { return FunctionList.begin(); }
|
|
inline const_iterator begin() const { return FunctionList.begin(); }
|
|
inline iterator end () { return FunctionList.end(); }
|
|
inline const_iterator end () const { return FunctionList.end(); }
|
|
|
|
inline reverse_iterator rbegin() { return FunctionList.rbegin(); }
|
|
inline const_reverse_iterator rbegin() const { return FunctionList.rbegin(); }
|
|
inline reverse_iterator rend () { return FunctionList.rend(); }
|
|
inline const_reverse_iterator rend () const { return FunctionList.rend(); }
|
|
|
|
inline unsigned size() const { return FunctionList.size(); }
|
|
inline bool empty() const { return FunctionList.empty(); }
|
|
inline const Function &front() const { return FunctionList.front(); }
|
|
inline Function &front() { return FunctionList.front(); }
|
|
inline const Function &back() const { return FunctionList.back(); }
|
|
inline Function &back() { return FunctionList.back(); }
|
|
|
|
void print(std::ostream &OS) const;
|
|
void dump() const;
|
|
|
|
/// dropAllReferences() - 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();
|
|
};
|
|
|
|
inline std::ostream &operator<<(std::ostream &O, const Module *M) {
|
|
M->print(O);
|
|
return O;
|
|
}
|
|
|
|
inline std::ostream &operator<<(std::ostream &O, const Module &M) {
|
|
M.print(O);
|
|
return O;
|
|
}
|
|
|
|
#endif
|