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1//===-- bswapdi2.c - Implement __bswapdi2 ---------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements __bswapdi2 for the compiler_rt library.10//11//===----------------------------------------------------------------------===//12 13#include "int_lib.h"14 15COMPILER_RT_ABI uint64_t __bswapdi2(uint64_t u) {16 return (17 (((u)&0xff00000000000000ULL) >> 56) |18 (((u)&0x00ff000000000000ULL) >> 40) |19 (((u)&0x0000ff0000000000ULL) >> 24) |20 (((u)&0x000000ff00000000ULL) >> 8) |21 (((u)&0x00000000ff000000ULL) << 8) |22 (((u)&0x0000000000ff0000ULL) << 24) |23 (((u)&0x000000000000ff00ULL) << 40) |24 (((u)&0x00000000000000ffULL) << 56));25}26