/*
   * lib/lshrdi3.c
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, see the file COPYING, or write
   * to the Free Software Foundation, Inc.
   */
  
  #include <linux/module.h>

  #include <linux/libgcc.h>

  
  long long notrace __lshrdi3(long long u, word_type b)
  {
  	DWunion uu, w;
  	word_type bm;
  
  	if (b == 0)
  		return u;
  
  	uu.ll = u;
  	bm = 32 - b;
  
  	if (bm <= 0) {
  		w.s.high = 0;
  		w.s.low = (unsigned int) uu.s.high >> -bm;
  	} else {
  		const unsigned int carries = (unsigned int) uu.s.high << bm;
  
  		w.s.high = (unsigned int) uu.s.high >> b;
  		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
  	}
  
  	return w.ll;
  }
  EXPORT_SYMBOL(__lshrdi3);