lib/cmpdi2.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  */
   4
   5 #include <linux/export.h>
   6
   7 #include <linux/libgcc.h>
   8
   9 word_type notrace __cmpdi2(long long a, long long b)
  10 {
  11         const DWunion au = {
  12                 .ll = a
  13         };
  14         const DWunion bu = {
  15                 .ll = b
  16         };
  17
  18         if (au.s.high < bu.s.high)
  19                 return 0;
  20         else if (au.s.high > bu.s.high)
  21                 return 2;
  22
  23         if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
  24                 return 0;
  25         else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
  26                 return 2;
  27
  28         return 1;
  29 }
  30 EXPORT_SYMBOL(__cmpdi2);