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/* { dg-do run } */
/* { dg-set-target-env-var ASAN_OPTIONS "detect_invalid_pointer_pairs=2 halt_on_error=0" } */
/* { dg-options "-fsanitize=address,pointer-subtract" } */
volatile __PTRDIFF_TYPE__ v;
__attribute__((noipa)) void
foo (char *p, char *q)
{
v = p - q;
}
char global1[100] = {}, global2[100] = {};
int
main ()
{
/* Heap allocated memory. */
char *heap1 = (char *)__builtin_malloc (42);
char *heap2 = (char *)__builtin_malloc (42);
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair.*" } */
foo (heap1, heap2);
/* Global variables. */
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair.*" } */
foo (&global1[0], &global2[10]);
/* Stack variables. */
char stack1, stack2;
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair.*" } */
foo (&stack1, &stack2);
/* Mixtures. */
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair.*" } */
foo (heap1, &stack1);
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair.*" } */
foo (heap1, &global1[0]);
/* { dg-output "ERROR: AddressSanitizer: invalid-pointer-pair" } */
foo (&stack1, &global1[0]);
__builtin_free (heap1);
__builtin_free (heap2);
return 0;
}
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