34 lines
520 B
C
34 lines
520 B
C
/* PR rtl-optimization/39794 */
|
|
/* { dg-do run } */
|
|
/* { dg-options "-O2 -funroll-loops" } */
|
|
|
|
extern void abort ();
|
|
|
|
void
|
|
foo (int *a, int n)
|
|
{
|
|
int i;
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
a[i] *= 2;
|
|
a[i + 1] = a[i - 1] + a[i - 2];
|
|
}
|
|
}
|
|
|
|
int a[16];
|
|
int ref[16] = { 0, 1, 4, 2, 10, 12, 24, 44,
|
|
72, 136, 232, 416, 736, 1296, 2304, 2032 };
|
|
|
|
int
|
|
main ()
|
|
{
|
|
int i;
|
|
for (i = 0; i < 16; i++)
|
|
a[i] = i;
|
|
foo (a + 2, 16 - 3);
|
|
for (i = 0; i < 16; i++)
|
|
if (ref[i] != a[i])
|
|
abort ();
|
|
return 0;
|
|
}
|