1*3cab2bb3Spatrick //===-- bswapdi2.c - Implement __bswapdi2 ---------------------------------===// 2*3cab2bb3Spatrick // 3*3cab2bb3Spatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*3cab2bb3Spatrick // See https://llvm.org/LICENSE.txt for license information. 5*3cab2bb3Spatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*3cab2bb3Spatrick // 7*3cab2bb3Spatrick //===----------------------------------------------------------------------===// 8*3cab2bb3Spatrick // 9*3cab2bb3Spatrick // This file implements __bswapdi2 for the compiler_rt library. 10*3cab2bb3Spatrick // 11*3cab2bb3Spatrick //===----------------------------------------------------------------------===// 12*3cab2bb3Spatrick 13*3cab2bb3Spatrick #include "int_lib.h" 14*3cab2bb3Spatrick __bswapdi2(uint64_t u)15*3cab2bb3SpatrickCOMPILER_RT_ABI uint64_t __bswapdi2(uint64_t u) { 16*3cab2bb3Spatrick return ( 17*3cab2bb3Spatrick (((u)&0xff00000000000000ULL) >> 56) | 18*3cab2bb3Spatrick (((u)&0x00ff000000000000ULL) >> 40) | 19*3cab2bb3Spatrick (((u)&0x0000ff0000000000ULL) >> 24) | 20*3cab2bb3Spatrick (((u)&0x000000ff00000000ULL) >> 8) | 21*3cab2bb3Spatrick (((u)&0x00000000ff000000ULL) << 8) | 22*3cab2bb3Spatrick (((u)&0x0000000000ff0000ULL) << 24) | 23*3cab2bb3Spatrick (((u)&0x000000000000ff00ULL) << 40) | 24*3cab2bb3Spatrick (((u)&0x00000000000000ffULL) << 56)); 25*3cab2bb3Spatrick } 26