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/* { dg-do compile } */
/* { dg-options "-O2" } */
#include <errno.h>
#include <stdlib.h>
int main()
{
void * volatile p;
errno = 0;
p = malloc (-1);
if (errno != 0)
do_not_optimize_away ();
return 0;
}
/* { dg-final { scan-assembler "do_not_optimize_away" } } */
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