/* { dg-do compile } */
/* { dg-options "-Ofast -mcpu=neoverse-n2 --param aarch64-vect-unroll-limit=2" } */
/* { dg-final { scan-assembler-not "8.0e\\+0" } } */

/* Calcualte the vectorized induction with smaller step for an unrolled loop.

   before (suggested_unroll_factor=2):
	  fmov    s30, 8.0e+0
	  fmov    s31, 4.0e+0
	  dup     v27.4s, v30.s[0]
	  dup     v28.4s, v31.s[0]
     .L6:
	  mov     v30.16b, v31.16b
	  fadd    v31.4s, v31.4s, v27.4s
	  fadd    v29.4s, v30.4s, v28.4s
	  stp     q30, q29, [x0]
	  add     x0, x0, 32
	  cmp     x1, x0
	  bne     .L6

   after:
	  fmov    s31, 4.0e+0
	  dup     v29.4s, v31.s[0]
     .L6:
	  fadd    v30.4s, v31.4s, v29.4s
	  stp     q31, q30, [x0]
	  add     x0, x0, 32
	  fadd    v31.4s, v29.4s, v30.4s
	  cmp     x0, x1
	  bne     .L6  */

void
foo2 (float *arr, float freq, float step)
{
  for (int i = 0; i < 1024; i++)
    {
      arr[i] = freq;
      freq += step;
    }
}