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
__bswapsi2(uint32_t u)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