// SPDX-License-Identifier: GPL-2.0 | |
#include "libgcc.h" | |
DWtype __ashrdi3(DWtype u, word_type b) | |
{ | |
const DWunion uu = {.ll = u}; | |
const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; | |
DWunion w; | |
if (b == 0) | |
return u; | |
if (bm <= 0) { | |
/* w.s.high = 1..1 or 0..0 */ | |
w.s.high = uu.s.high >> (sizeof (Wtype) * BITS_PER_UNIT - 1); | |
w.s.low = uu.s.high >> -bm; | |
} else { | |
const UWtype carries = (UWtype) uu.s.high << bm; | |
w.s.high = uu.s.high >> b; | |
w.s.low = ((UWtype) uu.s.low >> b) | carries; | |
} | |
return w.ll; | |
} |