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111
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1 /* PR tree-optimization/64322 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -fdump-tree-vrp1" } */
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4
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5 extern void link_error ();
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6 extern void required_check ();
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7
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8 long long int
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9 foo (long long int x)
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10 {
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11 x >>= sizeof (long long int) * __CHAR_BIT__ - 1;
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12 if (x != 0 && x != -1)
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13 link_error ();
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14 return x;
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15 }
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16
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17 unsigned long long int
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18 bar (unsigned long long int x)
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19 {
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20 x >>= sizeof (long long int) * __CHAR_BIT__ - 1;
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21 if (x != 0 && x != 1)
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22 link_error ();
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23 return x;
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24 }
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25
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26 long long int
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27 baz (long long int x)
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28 {
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29 x = (x >> sizeof (long long int) * __CHAR_BIT__ - 1) << 1;
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30 x = x / 0x100000000LL;
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31 if (x != 0)
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32 link_error ();
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33 return x;
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34 }
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35
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36 unsigned long long int
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37 range (unsigned long long int x, int y)
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38 {
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39 y &= 3;
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40 x >>= sizeof (long long int) * __CHAR_BIT__ - 1 - y;
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41 if (x > 15)
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42 link_error ();
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43 if (x == 15)
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44 required_check ();
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45 return x;
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46 }
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47
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48 /* { dg-final { scan-tree-dump-not "link_error" "vrp1" } } */
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49 /* { dg-final { scan-tree-dump "required_check" "vrp1" } } */
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