mirror of https://gitee.com/openkylin/linux.git
31 lines
521 B
C
31 lines
521 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/export.h>
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#include "libgcc.h"
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long long notrace __lshrdi3(long long u, word_type b)
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{
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DWunion uu, w;
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word_type bm;
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if (b == 0)
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return u;
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uu.ll = u;
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bm = 32 - b;
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if (bm <= 0) {
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w.s.high = 0;
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w.s.low = (unsigned int) uu.s.high >> -bm;
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} else {
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const unsigned int carries = (unsigned int) uu.s.high << bm;
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w.s.high = (unsigned int) uu.s.high >> b;
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w.s.low = ((unsigned int) uu.s.low >> b) | carries;
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}
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return w.ll;
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}
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EXPORT_SYMBOL(__lshrdi3);
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