blob: adcb253f11c81f540dd93ca65b49ce84100fb5bb [file] [log] [blame]
Michal Simekd64af912013-02-01 13:10:35 +01001#include <linux/export.h>
Michal Simek4e07dba2010-08-12 14:28:53 +02002
3#include "libgcc.h"
4
5long long __lshrdi3(long long u, word_type b)
6{
7 DWunion uu, w;
8 word_type bm;
9
10 if (b == 0)
11 return u;
12
13 uu.ll = u;
14 bm = 32 - b;
15
16 if (bm <= 0) {
17 w.s.high = 0;
18 w.s.low = (unsigned int) uu.s.high >> -bm;
19 } else {
20 const unsigned int carries = (unsigned int) uu.s.high << bm;
21
22 w.s.high = (unsigned int) uu.s.high >> b;
23 w.s.low = ((unsigned int) uu.s.low >> b) | carries;
24 }
25
26 return w.ll;
27}
Michal Simek4e07dba2010-08-12 14:28:53 +020028EXPORT_SYMBOL(__lshrdi3);