gcc/gcc/testsuite/gcc.dg/winline-7.c

/* { dg-do compile } */
/* { dg-options "-Winline -O2" } */

extern void *alloca (__SIZE_TYPE__);

void big (void);
inline void *q (void) /* { dg-warning "(function not inlinable|alloca)" } */
{
	return alloca (10);
}
inline void *t (void)
{
	return q ();		 /* { dg-warning "called from here" } */
}