1*0b57cec5SDimitry Andric //===-- bswapdi2.c - Implement __bswapdi2 ---------------------------------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file implements __bswapdi2 for the compiler_rt library. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric #include "int_lib.h" 14*0b57cec5SDimitry Andric __bswapdi2(uint64_t u)15*0b57cec5SDimitry AndricCOMPILER_RT_ABI uint64_t __bswapdi2(uint64_t u) { 16*0b57cec5SDimitry Andric return ( 17*0b57cec5SDimitry Andric (((u)&0xff00000000000000ULL) >> 56) | 18*0b57cec5SDimitry Andric (((u)&0x00ff000000000000ULL) >> 40) | 19*0b57cec5SDimitry Andric (((u)&0x0000ff0000000000ULL) >> 24) | 20*0b57cec5SDimitry Andric (((u)&0x000000ff00000000ULL) >> 8) | 21*0b57cec5SDimitry Andric (((u)&0x00000000ff000000ULL) << 8) | 22*0b57cec5SDimitry Andric (((u)&0x0000000000ff0000ULL) << 24) | 23*0b57cec5SDimitry Andric (((u)&0x000000000000ff00ULL) << 40) | 24*0b57cec5SDimitry Andric (((u)&0x00000000000000ffULL) << 56)); 25*0b57cec5SDimitry Andric } 26