License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[sfrench/cifs-2.6.git] / arch / sh / lib / ashldi3.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/module.h>
3
4 #include "libgcc.h"
5
6 long long __ashldi3(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.low = 0;
19                 w.s.high = (unsigned int) uu.s.low << -bm;
20         } else {
21                 const unsigned int carries = (unsigned int) uu.s.low >> bm;
22
23                 w.s.low = (unsigned int) uu.s.low << b;
24                 w.s.high = ((unsigned int) uu.s.high << b) | carries;
25         }
26
27         return w.ll;
28 }
29
30 EXPORT_SYMBOL(__ashldi3);