kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBGCC
[karo-tx-uboot.git] / arch / mips / lib / ashrdi3.c
1 #include "libgcc.h"
2
3 long long __ashrdi3(long long u, word_type b)
4 {
5         DWunion uu, w;
6         word_type bm;
7
8         if (b == 0)
9                 return u;
10
11         uu.ll = u;
12         bm = 32 - b;
13
14         if (bm <= 0) {
15                 /* w.s.high = 1..1 or 0..0 */
16                 w.s.high =
17                     uu.s.high >> 31;
18                 w.s.low = uu.s.high >> -bm;
19         } else {
20                 const unsigned int carries = (unsigned int) uu.s.high << bm;
21
22                 w.s.high = uu.s.high >> b;
23                 w.s.low = ((unsigned int) uu.s.low >> b) | carries;
24         }
25
26         return w.ll;
27 }