Commit | Line | Data |
---|---|---|
72fbfb26 RB |
1 | #include <linux/module.h> |
2 | ||
3 | #include "libgcc.h" | |
4 | ||
aedcfbe0 | 5 | long long notrace __ashldi3(long long u, word_type b) |
72fbfb26 RB |
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.low = 0; | |
18 | w.s.high = (unsigned int) uu.s.low << -bm; | |
19 | } else { | |
20 | const unsigned int carries = (unsigned int) uu.s.low >> bm; | |
21 | ||
22 | w.s.low = (unsigned int) uu.s.low << b; | |
23 | w.s.high = ((unsigned int) uu.s.high << b) | carries; | |
24 | } | |
25 | ||
26 | return w.ll; | |
27 | } | |
28 | ||
29 | EXPORT_SYMBOL(__ashldi3); |