llvm/clang/include/clang/CodeGen/CGFunctionInfo.h

//==-- CGFunctionInfo.h - Representation of function argument/return types -==//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Defines CGFunctionInfo and associated types used in representing the
// LLVM source types and ABI-coerced types for function arguments and
// return values.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_CODEGEN_CGFUNCTIONINFO_H
#define LLVM_CLANG_CODEGEN_CGFUNCTIONINFO_H

#include "clang/AST/CanonicalType.h"
#include "clang/AST/CharUnits.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Type.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/Support/TrailingObjects.h"
#include <cassert>

namespace clang {
namespace CodeGen {

/// ABIArgInfo - Helper class to encapsulate information about how a
/// specific C type should be passed to or returned from a function.
class ABIArgInfo { … };

/// A class for recording the number of arguments that a function
/// signature requires.
class RequiredArgs { … };

// Implementation detail of CGFunctionInfo, factored out so it can be named
// in the TrailingObjects base class of CGFunctionInfo.
struct CGFunctionInfoArgInfo { … };

/// CGFunctionInfo - Class to encapsulate the information about a
/// function definition.
class CGFunctionInfo final
    : public llvm::FoldingSetNode,
      private llvm::TrailingObjects<CGFunctionInfo, CGFunctionInfoArgInfo,
                                    FunctionProtoType::ExtParameterInfo> { … };

}  // end namespace CodeGen
}  // end namespace clang

#endif