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1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  */
4 
5 #include <linux/export.h>
6 
7 #include <linux/libgcc.h>
8 
__ashrdi3(long long u,word_type b)9 long 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 }
34 EXPORT_SYMBOL(__ashrdi3);
35