| // 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; | |
| } |