31 lines
		
	
	
		
			513 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			513 B
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
 | |
| #include <linux/module.h>
 | |
| 
 | |
| #include "libgcc.h"
 | |
| 
 | |
| long long __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);
 |