1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 */
4
5#include <linux/export.h>
6
7#include <linux/libgcc.h>
8
9long long notrace __ashrdi3(long long u, word_type b)
10{
11	DWunion uu, w;
12	word_type bm;
13
14	if (b == 0)
15		return u;
16
17	uu.ll = u;
18	bm = 32 - b;
19
20	if (bm <= 0) {
21		/* w.s.high = 1..1 or 0..0 */
22		w.s.high =
23		    uu.s.high >> 31;
24		w.s.low = uu.s.high >> -bm;
25	} else {
26		const unsigned int carries = (unsigned int) uu.s.high << bm;
27
28		w.s.high = uu.s.high >> b;
29		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
30	}
31
32	return w.ll;
33}
34EXPORT_SYMBOL(__ashrdi3);
35