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111
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1 /* PR rtl-optimization/20017
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2
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3 After CSE/GCSE folds a switch statement to an unconditional jump,
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4 cfg_cleanup did not remove a dead jump table, confusing the CFG
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5 layout code later on. */
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6
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7 /* { dg-do compile } */
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8 /* { dg-options "-O1" } */
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9 /* { dg-options "-O1 -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
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10
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11 int
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12 foo (int *buf, int *p)
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13 {
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14 int result;
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15 const int *tmp;
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16
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17 if (*buf)
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18 return 1;
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19
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20 result = 2;
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21 *buf = 2;
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22 tmp = buf;
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23 switch (*tmp)
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24 {
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25 case 3:
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26 case 4:
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27 case 6:
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28 case 14:
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29 return 1;
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30
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31 case 0:
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32 result = *p;
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33
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34 /* Fall through. */
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35 default:
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36 if (result)
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37 return 1;
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38 }
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39
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40 return 0;
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41 }
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