blob: 23f5295af51e1cff77b255986370c34122897778 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include "libgcc.h"
long long notrace __ashrdi3(long long u, word_type b)
{
DWunion uu, w;
word_type bm;
if (b == 0)
return u;
uu.ll = u;
bm = 32 - b;
if (bm <= 0) {
/* w.s.high = 1..1 or 0..0 */
w.s.high =
uu.s.high >> 31;
w.s.low = uu.s.high >> -bm;
} else {
const unsigned int carries = (unsigned int) uu.s.high << bm;
w.s.high = uu.s.high >> b;
w.s.low = ((unsigned int) uu.s.low >> b) | carries;
}
return w.ll;
}
EXPORT_SYMBOL(__ashrdi3);