1  /* { dg-do compile } */
       2  /* { dg-require-effective-target arm_v8_2a_fp16_neon_ok } */
       3  /* { dg-options "-Ofast" } */
       4  /* { dg-add-options arm_v8_2a_fp16_neon } */
       5  /* { dg-final { check-function-bodies "**" "" "" { target { le } } } } */
       6  
       7  #pragma GCC target "+nosve"
       8  
       9  /* 
      10  ** f1:
      11  ** ...
      12  **	fneg	v[0-9]+.2d, v[0-9]+.2d
      13  **	fadd	v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
      14  ** ...
      15  */
      16  void f1 (float *restrict a, float *restrict b, float *res, int n)
      17  {
      18     for (int i = 0; i < (n & -4); i+=2)
      19      {
      20        res[i+0] = a[i+0] + b[i+0];
      21        res[i+1] = a[i+1] - b[i+1];
      22      }
      23  }
      24  
      25  /* 
      26  ** d1:
      27  ** ...
      28  ** 	fneg	v[0-9]+.4s, v[0-9]+.4s
      29  ** 	fadd	v[0-9]+.8h, v[0-9]+.8h, v[0-9]+.8h
      30  ** ...
      31  */
      32  void d1 (_Float16 *restrict a, _Float16 *restrict b, _Float16 *res, int n)
      33  {
      34     for (int i = 0; i < (n & -8); i+=2)
      35      {
      36        res[i+0] = a[i+0] + b[i+0];
      37        res[i+1] = a[i+1] - b[i+1];
      38      }
      39  }
      40  
      41  /* 
      42  ** e1:
      43  ** ...
      44  ** 	fadd	v[0-9]+.2d, v[0-9]+.2d, v[0-9]+.2d
      45  ** 	fsub	v[0-9]+.2d, v[0-9]+.2d, v[0-9]+.2d
      46  ** 	ins	v[0-9]+.d\[1\], v[0-9]+.d\[1\]
      47  ** ...
      48  */
      49  void e1 (double *restrict a, double *restrict b, double *res, int n)
      50  {
      51     for (int i = 0; i < (n & -4); i+=2)
      52      {
      53        res[i+0] = a[i+0] + b[i+0];
      54        res[i+1] = a[i+1] - b[i+1];
      55      }
      56  }