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