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// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include <linux/types.h>
#include "tishift.h"
union ti {
__int128_t val;
struct {
u64 high;
u64 low;
};
};
noinstr __int128_t __ashlti3(__int128_t a, int shift)
{
union ti ti = { .val = a };
if (!shift)
return ti.val;
if (shift < 64) {
ti.high = (ti.high << shift) | (ti.low >> (64 - shift));
ti.low = ti.low << shift;
} else {
ti.high = ti.low << (shift - 64);
ti.low = 0;
}
return ti.val;
}
EXPORT_SYMBOL(__ashlti3);
noinstr __int128_t __ashrti3(__int128_t a, int shift)
{
union ti ti = { .val = a };
if (!shift)
return ti.val;
if (shift < 64) {
ti.low = (ti.low >> shift) | (ti.high << (64 - shift));
ti.high = (int64_t)ti.high >> shift;
} else {
ti.low = (int64_t)ti.high >> (shift - 64);
ti.high = (int64_t)ti.high >> 63;
}
return ti.val;
}
EXPORT_SYMBOL(__ashrti3);
noinstr __int128_t __lshrti3(__int128_t a, int shift)
{
union ti ti = { .val = a };
if (!shift)
return ti.val;
if (shift < 64) {
ti.low = (ti.low >> shift) | (ti.high << (64 - shift));
ti.high = ti.high >> shift;
} else {
ti.low = ti.high >> (shift - 64);
ti.high = 0;
}
return ti.val;
}
EXPORT_SYMBOL(__lshrti3);
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