1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/export.h> 3 4 #include "libgcc.h" 5 6 long long __lshrdi3(long long u, word_type b) 7 { 8 DWunion uu, w; 9 word_type bm; 10 11 if (b == 0) 12 return u; 13 14 uu.ll = u; 15 bm = 32 - b; 16 17 if (bm <= 0) { 18 w.s.high = 0; 19 w.s.low = (unsigned int) uu.s.high >> -bm; 20 } else { 21 const unsigned int carries = (unsigned int) uu.s.high << bm; 22 23 w.s.high = (unsigned int) uu.s.high >> b; 24 w.s.low = ((unsigned int) uu.s.low >> b) | carries; 25 } 26 27 return w.ll; 28 } 29 EXPORT_SYMBOL(__lshrdi3); 30