/* { dg-do run } */ void __attribute__((noinline,noclone)) foo (int *a, int n) { int *lasta = a + n; for (; a != lasta; a++) { *a *= 2; a[1] = a[-1] + a[-2]; } } extern void abort (void); int main() { int a[16] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }; int r[16] = { 1, 2, 6, 6, 16, 24, 44, 80, 136, 248, 432, 768, 1360, 2400, 4256, 3760 }; unsigned i; foo (&a[2], 13); for (i = 0; i < 8; ++i) if (a[i] != r[i]) abort (); return 0; }