1 #include "libgcc.h" 2 __lshrdi3(DWtype u,word_type b)3DWtype __lshrdi3(DWtype u, word_type b) 4 { 5 const DWunion uu = {.ll = u}; 6 const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; 7 DWunion w; 8 9 if (b == 0) 10 return u; 11 12 if (bm <= 0) { 13 w.s.high = 0; 14 w.s.low = (UWtype) uu.s.high >> -bm; 15 } else { 16 const UWtype carries = (UWtype) uu.s.high << bm; 17 18 w.s.high = (UWtype) uu.s.high >> b; 19 w.s.low = ((UWtype) uu.s.low >> b) | carries; 20 } 21 22 return w.ll; 23 } 24