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111
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1 /* { dg-do run { target *-*-linux* *-*-gnu* } } */
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2 /* { dg-options "-O" } */
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3
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4 #include <unistd.h>
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5 #include <signal.h>
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6 #include <stdlib.h>
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7
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8 static char var1 = 0L;
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9 static char *var2 = &var1;
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10
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11 void do_exit (int i)
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12 {
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13 exit (0);
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14 }
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15
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16 int main(void)
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17 {
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18 struct sigaction s;
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19 sigemptyset (&s.sa_mask);
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20 s.sa_handler = do_exit;
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21 s.sa_flags = 0;
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22 sigaction (SIGALRM, &s, NULL);
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23 alarm (1);
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24 /* The following loop is infinite, the division by zero should not
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25 be hoisted out of it. */
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26 for (; (var1 == 0 ? 0 : (100 / var1)) == *var2; );
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27 return 0;
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28 }
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