1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -ffast-math -ftree-vectorize -msse4.2 -mtune=corei7" } */
       3  /* { dg-require-effective-target c99_runtime } */
       4  
       5  #include <math.h>
       6  
       7  struct XYZ
       8  {
       9    float x;
      10    float y;
      11    float z;
      12  };
      13  
      14  void
      15  norm (struct XYZ *in, struct XYZ *out, int size)
      16  {
      17    int i;
      18    for (i = 0; i < size; ++i)
      19      {
      20        float n = sqrt (in[i].x * in[i].x + in[i].y * in[i].y + in[i].z * in[i].z);
      21        out[i].x = in[i].x / n;
      22        out[i].y = in[i].y / n;
      23        out[i].z = in[i].z / n;
      24      }
      25  }
      26  
      27  /* { dg-final { scan-assembler "rsqrtps" } } */