mlir/lib/Dialect/Ptr/IR/PtrAttrs.cpp

//===- PtrAttrs.cpp - Pointer dialect attributes ----------------*- C++ -*-===//
//
// This file is licensed 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 defines the Ptr dialect attributes.
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Ptr/IR/PtrAttrs.h"
#include "llvm/ADT/TypeSwitch.h"

using namespace mlir;
using namespace mlir::ptr;

constexpr const static unsigned kBitsInByte = 8;

//===----------------------------------------------------------------------===//
// SpecAttr
//===----------------------------------------------------------------------===//

LogicalResult SpecAttr::verify(function_ref<InFlightDiagnostic()> emitError,
                               uint32_t size, uint32_t abi, uint32_t preferred,
                               uint32_t index) {
  if (size % kBitsInByte != 0)
    return emitError() << "size entry must be divisible by 8";
  if (abi % kBitsInByte != 0)
    return emitError() << "abi entry must be divisible by 8";
  if (preferred % kBitsInByte != 0)
    return emitError() << "preferred entry must be divisible by 8";
  if (index != kOptionalSpecValue && index % kBitsInByte != 0)
    return emitError() << "index entry must be divisible by 8";
  if (abi > preferred)
    return emitError() << "preferred alignment is expected to be at least "
                          "as large as ABI alignment";
  return success();
}