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31 lines
534 B
31 lines
534 B
// 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 __ashrdi3(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 = 1..1 or 0..0 */ |
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w.s.high = |
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uu.s.high >> 31; |
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w.s.low = 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 = 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(__ashrdi3);
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