cosmopolitan/third_party/compiler_rt/bswapsi2.c

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2020-06-15 14:18:57 +00:00
/* clang-format off */
/* ===-- bswapsi2.c - Implement __bswapsi2 ---------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __bswapsi2 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
STATIC_YOINK("huge_compiler_rt_license");
#include "third_party/compiler_rt/int_lib.h"
COMPILER_RT_ABI uint32_t __bswapsi2(uint32_t u) {
return (
(((u)&0xff000000) >> 24) |
(((u)&0x00ff0000) >> 8) |
(((u)&0x0000ff00) << 8) |
(((u)&0x000000ff) << 24));
}