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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_BITREV_H
3#define __ASM_BITREV_H
4static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
5{
6 __asm__ ("rbit %w0, %w1" : "=r" (x) : "r" (x));
7 return x;
8}
9
10static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
11{
12 return __arch_bitrev32((u32)x) >> 16;
13}
14
15static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
16{
17 return __arch_bitrev32((u32)x) >> 24;
18}
19
20#endif