LXR linux/arch/sh/lib/lshrdi3.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/module.h>
   3
   4#include "libgcc.h"
   5
   6long long __lshrdi3(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.high = 0;
  19                w.s.low = (unsigned int) uu.s.high >> -bm;
  20        } else {
  21                const unsigned int carries = (unsigned int) uu.s.high << bm;
  22
  23                w.s.high = (unsigned int) uu.s.high >> b;
  24                w.s.low = ((unsigned int) uu.s.low >> b) | carries;
  25        }
  26
  27        return w.ll;
  28}
  29
  30EXPORT_SYMBOL(__lshrdi3);
  31