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/* { dg-do run } */
/* { dg-set-target-env-var ASAN_OPTIONS "detect_invalid_pointer_pairs=2 halt_on_error=1" } */
/* { dg-options "-fsanitize=address,pointer-subtract" } */
volatile __PTRDIFF_TYPE__ v;
void
bar (char *p, char *q)
{
v = q - p;
v = p - q;
}
char global[10000] = {};
int
main ()
{
/* Heap allocated memory. */
char *p = (char *)__builtin_malloc (42);
bar (p, p + 20);
__builtin_free (p);
/* Global variable. */
bar (&global[0], &global[100]);
bar (&global[1000], &global[9000]);
bar (&global[500], &global[10]);
bar (&global[0], &global[10000]);
/* Stack variable. */
char stack[10000];
bar (&stack[0], &stack[100]);
bar (&stack[1000], &stack[9000]);
bar (&stack[500], &stack[10]);
return 0;
}
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