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/* { dg-do run } */
/* { dg-options "-fsanitize=nonnull-attribute,returns-nonnull-attribute" } */
int q, r;
void *a, *b, *c = (void *) &q, *d, *e, *f = (void *) &q, *g, *h;
__attribute__((returns_nonnull, nonnull (1, 3)))
void *
foo (void *p, void *q, void *r)
{
a = p;
b = r;
return q;
}
int
bar (const void *a, const void *b)
{
int c = *(const int *) a;
int d = *(const int *) b;
return c - d;
}
int
main ()
{
asm volatile ("" : : : "memory");
d = foo (c, b, c);
e = foo (e, c, f);
g = foo (c, f, g);
__builtin_memset (d, '\0', q);
return 0;
}
/* { dg-output "\.c:13:\[0-9]*:\[^\n\r]*null pointer returned from function declared to never return null\[^\n\r]*(\n|\r\n|\r)" } */
/* { dg-output "\[^\n\r]*\.c:29:\[0-9]*:\[^\n\r]*null pointer passed as argument 1, which is declared to never be null\[^\n\r]*(\n|\r\n|\r)" } */
/* { dg-output "\[^\n\r]*\.c:30:\[0-9]*:\[^\n\r]*null pointer passed as argument 3, which is declared to never be null\[^\n\r]*(\n|\r\n|\r)" } */
/* { dg-output "\[^\n\r]*\.c:31:\[0-9]*:\[^\n\r]*null pointer passed as argument 1, which is declared to never be null" } */
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