llvm/llvm/include/llvm/IR/Module.h

//===- llvm/Module.h - C++ class to represent a VM module -------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// @file
/// Module.h This file contains the declarations for the Module class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_MODULE_H
#define LLVM_IR_MODULE_H

#include "llvm-c/Types.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Comdat.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalIFunc.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/ProfileSummary.h"
#include "llvm/IR/SymbolTableListTraits.h"
#include "llvm/Support/CBindingWrapping.h"
#include "llvm/Support/CodeGen.h"
#include <cstddef>
#include <cstdint>
#include <iterator>
#include <memory>
#include <optional>
#include <string>
#include <vector>

namespace llvm {

class Error;
class FunctionType;
class GVMaterializer;
class LLVMContext;
class MemoryBuffer;
class ModuleSummaryIndex;
class RandomNumberGenerator;
class StructType;
class VersionTuple;

/// 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 GlobalList 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 GlobalList.
/// The main container class for the LLVM Intermediate Representation.
class LLVM_EXTERNAL_VISIBILITY Module { … };

/// Given "llvm.used" or "llvm.compiler.used" as a global name, collect the
/// initializer elements of that global in a SmallVector and return the global
/// itself.
GlobalVariable *collectUsedGlobalVariables(const Module &M,
                                           SmallVectorImpl<GlobalValue *> &Vec,
                                           bool CompilerUsed);

/// An raw_ostream inserter for modules.
inline raw_ostream &operator<<(raw_ostream &O, const Module &M) { … }

// Create wrappers for C Binding types (see CBindingWrapping.h).
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(…)

/* LLVMModuleProviderRef exists for historical reasons, but now just holds a
 * Module.
 */
inline Module *unwrap(LLVMModuleProviderRef MP) { … }

} // end namespace llvm

#endif // LLVM_IR_MODULE_H