1  /* { dg-do run } */
       2  /* { dg-options "-O3 -mpower8-vector" } */
       3  /* { dg-require-effective-target p8vector_hw } */
       4  
       5  #define NO_WARN_X86_INTRINSICS 1
       6  #ifndef CHECK_H
       7  #define CHECK_H "mmx-check.h"
       8  #endif
       9  
      10  #ifndef TEST
      11  #define TEST mmx_test
      12  #endif
      13  
      14  #include CHECK_H
      15  
      16  #include <mmintrin.h>
      17  
      18  static __m64
      19  __attribute__((noinline, unused))
      20  test (__m64 s1, __m64 s2)
      21  {
      22    return _mm_subs_pu8 (s1, s2);
      23  }
      24  
      25  static void
      26  TEST (void)
      27  {
      28    __m64_union u, s1, s2;
      29    __m64_union e;
      30    int i, tmp;
      31  
      32    s1.as_m64 = _mm_set_pi8 (30, 2, 3, 4, 10, 20, 30, 90);
      33    s2.as_m64 = _mm_set_pi8 (88, 44, 3, 22, 11, 98, 76, 100);
      34    u.as_m64 = test (s1.as_m64, s2.as_m64);
      35  
      36    for (i = 0; i < 8; i++)
      37      {
      38        tmp = s1.as_char[i] - s2.as_char[i];
      39  
      40        if (tmp > 255)
      41          tmp = -1;
      42        if (tmp < 0)
      43          tmp = 0;
      44  
      45        e.as_char[i] = tmp;
      46      }
      47  
      48    if (u.as_m64 != e.as_m64)
      49      abort ();
      50  }