1  /* { dg-do compile } */
       2  /* { dg-require-effective-target powerpc_p9vector_ok } */
       3  /* { dg-options "-mdejagnu-cpu=power9 -O3" } */
       4  /* { dg-final { scan-assembler "lxvx" } } */
       5  /* { dg-final { scan-assembler "stxvx" } } */
       6  /* { dg-final { scan-assembler-not "lxvd2x" } } */
       7  /* { dg-final { scan-assembler-not "stxvd2x" } } */
       8  /* { dg-final { scan-assembler-not "xxpermdi" } } */
       9  
      10  /* Verify P9 vector loads and stores are used rather than the
      11     load-swap/swap-store workarounds for P8.  */
      12  #define N 16
      13  
      14  signed char ca[N] __attribute__((aligned(16)));
      15  signed char cb[] __attribute__((aligned(16)))
      16    = {8, 7, 6, 5, 4, 3, 2,  1,  0, -1, -2, -3, -4, -5, -6, -7};
      17  signed char cc[] __attribute__((aligned(16)))
      18    = {1, 1, 2, 2, 3, 3, 2,  2,  1,  1,  0,  0, -1, -1, -2, -2};
      19  
      20  __attribute__((noinline)) void foo ()
      21  {
      22    int i;
      23    for (i = 0; i < N; i++) {
      24      ca[i] = cb[i] - cc[i];
      25    }
      26  }