llvm/llvm/include/llvm/IR/LLVMContext.h

//===- llvm/LLVMContext.h - Class for managing "global" state ---*- 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
//
//===----------------------------------------------------------------------===//
//
// This file declares LLVMContext, a container of "global" state in LLVM, such
// as the global type and constant uniquing tables.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_LLVMCONTEXT_H
#define LLVM_IR_LLVMCONTEXT_H

#include "llvm-c/Types.h"
#include "llvm/IR/DiagnosticHandler.h"
#include "llvm/Support/CBindingWrapping.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <string>

namespace llvm {

class DiagnosticInfo;
enum DiagnosticSeverity : char;
class Function;
class Instruction;
class LLVMContextImpl;
class Module;
class OptPassGate;
template <typename T> class SmallVectorImpl;
template <typename T> class StringMapEntry;
class StringRef;
class Twine;
class LLVMRemarkStreamer;

namespace remarks {
class RemarkStreamer;
}

namespace SyncScope {

ID;

/// Known synchronization scope IDs, which always have the same value.  All
/// synchronization scope IDs that LLVM has special knowledge of are listed
/// here.  Additionally, this scheme allows LLVM to efficiently check for
/// specific synchronization scope ID without comparing strings.
enum { … };

} // end namespace SyncScope

/// This is an important class for using LLVM in a threaded context.  It
/// (opaquely) owns and manages the core "global" data of LLVM's core
/// infrastructure, including the type and constant uniquing tables.
/// LLVMContext itself provides no locking guarantees, so you should be careful
/// to have one context per thread.
class LLVMContext { … };

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

/* Specialized opaque context conversions.
 */
inline LLVMContext **unwrap(LLVMContextRef* Tys) { … }

inline LLVMContextRef *wrap(const LLVMContext **Tys) { … }

} // end namespace llvm

#endif // LLVM_IR_LLVMCONTEXT_H