arch/parisc/lib/ucmpdi2.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/module.h>
   3 #include <linux/libgcc.h>
   4
   5 union ull_union {
   6         unsigned long long ull;
   7         struct {
   8                 unsigned int high;
   9                 unsigned int low;
  10         } ui;
  11 };
  12
  13 word_type __ucmpdi2(unsigned long long a, unsigned long long b)
  14 {
  15         union ull_union au = {.ull = a};
  16         union ull_union bu = {.ull = b};
  17
  18         if (au.ui.high < bu.ui.high)
  19                 return 0;
  20         else if (au.ui.high > bu.ui.high)
  21                 return 2;
  22         if (au.ui.low < bu.ui.low)
  23                 return 0;
  24         else if (au.ui.low > bu.ui.low)
  25                 return 2;
  26         return 1;
  27 }