flang/include/flang/Lower/CharacterRuntime.h

//===-- Lower/CharacterRuntime.h -- lower CHARACTER operations --*- 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
//
//===----------------------------------------------------------------------===//

#ifndef FORTRAN_LOWER_CHARACTERRUNTIME_H
#define FORTRAN_LOWER_CHARACTERRUNTIME_H

#include "mlir/Dialect/StandardOps/IR/Ops.h"

namespace Fortran {
namespace lower {
class AbstractConverter;

/// Generate call to a character comparison for two ssa-values of type
/// `boxchar`.
mlir::Value genBoxCharCompare(AbstractConverter &converter, mlir::Location loc,
                              mlir::CmpIPredicate cmp, mlir::Value lhs,
                              mlir::Value rhs);

/// Generate call to a character comparison op for two unboxed variables. There
/// are 4 arguments, 2 for the lhs and 2 for the rhs. Each CHARACTER must pass a
/// reference to its buffer (`ref<char<K>>`) and its LEN type parameter (some
/// integral type).
mlir::Value genRawCharCompare(AbstractConverter &converter, mlir::Location loc,
                              mlir::CmpIPredicate cmp, mlir::Value lhsBuff,
                              mlir::Value lhsLen, mlir::Value rhsBuff,
                              mlir::Value rhsLen);

} // namespace lower
} // namespace Fortran

#endif // FORTRAN_LOWER_CHARACTERRUNTIME_H