1  /* { dg-do run } */
       2  /* { dg-require-effective-target p8vector_hw } */
       3  /* { dg-options "-mdejagnu-cpu=power8 -O3" } */
       4  
       5  #include <altivec.h>
       6  void abort ();
       7  
       8  #define N 4096
       9  int ca[N] __attribute__((aligned(16)));
      10  int cb[N] __attribute__((aligned(16)));
      11  int cc[N] __attribute__((aligned(16)));
      12  int cd[N] __attribute__((aligned(16)));
      13  int hey;
      14  
      15  __attribute__((noinline)) void foo ()
      16  {
      17    int i;
      18    vector int va, vb, vc, vd, tmp;
      19    vector unsigned int threes = vec_splat_u32(3);
      20    for (i = 0; i < N; i+=4) {
      21      vb = vec_vsx_ld (0, &cb[i]);
      22      vc = vec_vsx_ld (0, &cc[i]);
      23      vd = vec_vsx_ld (0, &cd[i]);
      24      tmp = vec_add (vb, vc);
      25      tmp = vec_sub (tmp, vd);
      26      tmp = vec_sra (tmp, threes);
      27      hey = tmp[3];
      28      vec_vsx_st (tmp, 0, &ca[i]);
      29    }
      30  }
      31  
      32  __attribute__((noinline)) void init ()
      33  {
      34    int i;
      35    for (i = 0; i < N; ++i) {
      36      cb[i] = 3 * i - 2048;
      37      cc[i] = -5 * i + 93;
      38      cd[i] = i + 14;
      39    }
      40  }
      41  
      42  int main ()
      43  {
      44    int i;
      45    init ();
      46    foo ();
      47    for (i = 0; i < N; ++i)
      48      if (ca[i] != (-3 * i - 1969) >> 3)
      49        abort ();
      50    if (hey != ca[N-1])
      51      abort ();
      52    return 0;
      53  }