1 #include "libgcc.h" 2 3 long long __ashrdi3(long long u, word_type b) 4 { 5 DWunion uu, w; 6 word_type bm; 7 8 if (b == 0) 9 return u; 10 11 uu.ll = u; 12 bm = 32 - b; 13 14 if (bm <= 0) { 15 /* w.s.high = 1..1 or 0..0 */ 16 w.s.high = 17 uu.s.high >> 31; 18 w.s.low = uu.s.high >> -bm; 19 } else { 20 const unsigned int carries = (unsigned int) uu.s.high << bm; 21 22 w.s.high = uu.s.high >> b; 23 w.s.low = ((unsigned int) uu.s.low >> b) | carries; 24 } 25 26 return w.ll; 27 } 28