LXR linux/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
   9word_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}
  30EXPORT_SYMBOL(__cmpdi2);
  31