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| 4 |
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| 5 | #include <linux/export.h>
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| 6 |
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| 7 | #include <linux/libgcc.h>
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| 8 |
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| 9 | long long notrace __ashldi3(long long u, word_type b)
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| 10 | {
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| 11 | DWunion uu, w;
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| 12 | word_type bm;
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| 13 |
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| 14 | if (b == 0)
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| 15 | return u;
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| 16 |
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| 17 | uu.ll = u;
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| 18 | bm = 32 - b;
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| 19 |
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| 20 | if (bm <= 0) {
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| 21 | w.s.low = 0;
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| 22 | w.s.high = (unsigned int) uu.s.low << -bm;
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| 23 | } else {
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| 24 | const unsigned int carries = (unsigned int) uu.s.low >> bm;
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| 25 |
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| 26 | w.s.low = (unsigned int) uu.s.low << b;
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| 27 | w.s.high = ((unsigned int) uu.s.high << b) | carries;
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| 28 | }
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| 29 |
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| 30 | return w.ll;
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| 31 | }
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| 32 | EXPORT_SYMBOL(__ashldi3);
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