lib/ucmpdi2.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  */
   4
   5 #include <linux/module.h>
   6 #include <linux/libgcc.h>
   7
   8 word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b)
   9 {
  10         const DWunion au = {.ll = a};
  11         const DWunion bu = {.ll = b};
  12
  13         if ((unsigned int) au.s.high < (unsigned int) bu.s.high)
  14                 return 0;
  15         else if ((unsigned int) au.s.high > (unsigned int) bu.s.high)
  16                 return 2;
  17         if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
  18                 return 0;
  19         else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
  20                 return 2;
  21         return 1;
  22 }
  23 EXPORT_SYMBOL(__ucmpdi2);