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1 /* PR debug/65779 */
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2 /* { dg-do assemble } */
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3 /* { dg-options "-O2 -fcompare-debug" } */
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4 /* { dg-xfail-if "" { powerpc-ibm-aix* } } */
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5
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6 unsigned long
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7 foo (unsigned long x, unsigned char *y, unsigned int z)
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8 {
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9 unsigned long a = x & 0xffff;
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10 unsigned long b = (x >> 16) & 0xffff;
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11 int k;
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12 if (y == 0) return 1L;
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13 while (z > 0)
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14 {
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15 k = z < 5552 ? z : 5552;
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16 z -= k;
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17 while (k >= 16)
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18 {
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19 a += *y++; b += a;
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20 a += *y++; b += a;
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21 a += *y++; b += a;
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22 a += *y++; b += a;
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23 a += *y++; b += a;
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24 a += *y++; b += a;
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25 a += *y++; b += a;
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26 a += *y++; b += a;
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27 a += *y++; b += a;
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28 a += *y++; b += a;
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29 a += *y++; b += a;
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30 a += *y++; b += a;
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31 a += *y++; b += a;
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32 a += *y++; b += a;
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33 a += *y++; b += a;
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34 a += *y++; b += a;
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35 k -= 16;
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36 }
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37 if (k != 0)
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38 do { a += *y++; b += a; } while (--k);
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39 a %= 65521L;
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40 b %= 65521L;
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41 }
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42 return (b << 16) | a;
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43 }
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