gcc/libmudflap/testsuite/libmudflap.c/fail39-frag.c

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#include <stdio.h>
#include <stdlib.h>
int main ()
{
volatile int *k = (int *) malloc (sizeof (int));
volatile int l;
if (k == NULL) abort ();
*k = 5;
free ((void *) k);
__mf_set_options ("-ignore-reads");
l = *k; /* Should not trip, even though memory region just freed. */
__mf_set_options ("-no-ignore-reads");
l = *k; /* Should trip now. */
return 0;
}
/* { dg-output "mudflap violation 1.*check/read.*" } */
/* { dg-output "Nearby object 1.*" } */
/* { dg-output "mudflap dead object.*malloc region.*" } */
/* { dg-do run { xfail *-*-* } } */