1 //===-- bswapsi2.c - Implement __bswapsi2 ---------------------------------===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements __bswapsi2 for the compiler_rt library. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "int_lib.h" 14 15 COMPILER_RT_ABI uint32_t __bswapsi2(uint32_t u) { 16 return ((((u)&0xff000000) >> 24) | 17 (((u)&0x00ff0000) >> 8) | 18 (((u)&0x0000ff00) << 8) | 19 (((u)&0x000000ff) << 24)); 20 } 21