1 /* ===-- bswapsi2.c - Implement __bswapsi2 ---------------------------------===
3 * The LLVM Compiler Infrastructure
5 * This file is dual licensed under the MIT and the University of Illinois Open
6 * Source Licenses. See LICENSE.TXT for details.
8 * ===----------------------------------------------------------------------===
10 * This file implements __bswapsi2 for the compiler_rt library.
12 * ===----------------------------------------------------------------------===
17 COMPILER_RT_ABI uint32_t __bswapsi2(uint32_t u) {
19 (((u)&0xff000000) >> 24) |
20 (((u)&0x00ff0000) >> 8) |
21 (((u)&0x0000ff00) << 8) |
22 (((u)&0x000000ff) << 24));