1  /* { dg-do run } */
       2  /* { dg-require-effective-target ssse3 } */
       3  /* { dg-options "-O2 -fno-strict-aliasing -mssse3" } */
       4  
       5  #ifndef CHECK_H
       6  #define CHECK_H "ssse3-check.h"
       7  #endif
       8  
       9  #ifndef TEST
      10  #define TEST ssse3_test
      11  #endif
      12  
      13  #include CHECK_H
      14  
      15  #include "ssse3-vals.h"
      16  
      17  #include <tmmintrin.h>
      18  
      19  /* Test the 64-bit form */
      20  static void
      21  ssse3_test_phsubd (int *i1, int *i2, int *r)
      22  {
      23    __m64 t1 = *(__m64 *) i1;
      24    __m64 t2 = *(__m64 *) i2;
      25    *(__m64 *) r = _mm_hsub_pi32(t1, t2);
      26    _mm_empty ();
      27  }
      28  
      29  /* Test the 128-bit form */
      30  static void
      31  ssse3_test_phsubd128 (int *i1, int *i2, int *r)
      32  {
      33    /* Assumes incoming pointers are 16-byte aligned */
      34    __m128i t1 = *(__m128i *) i1;
      35    __m128i t2 = *(__m128i *) i2;
      36    *(__m128i *) r = _mm_hsub_epi32 (t1, t2);
      37  }
      38  
      39  /* Routine to manually compute the results */
      40  static void
      41  compute_correct_result (int *i1, int *i2, int *r)
      42  {
      43    int i;
      44  
      45    for (i = 0; i < 2; i++)
      46      r[i] = i1[2 * i] - i1[2 * i + 1];
      47    for (i = 0; i < 2; i++)
      48      r[i + 2] = i2[2 * i] - i2[2 * i + 1];
      49  }
      50  
      51  static void
      52  TEST (void)
      53  {
      54    int i;
      55    int r [4] __attribute__ ((aligned(16)));
      56    int ck [4];
      57    int fail = 0;
      58  
      59    for (i = 0; i < 256; i += 8)
      60      {
      61        /* Manually compute the result */
      62        compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
      63  
      64        /* Run the 64-bit tests */
      65        ssse3_test_phsubd (&vals[i + 0], &vals[i + 2], &r[0]);
      66        ssse3_test_phsubd (&vals[i + 4], &vals[i + 6], &r[2]);
      67        fail += chk_128 (ck, r);
      68  
      69        /* Run the 128-bit tests */
      70        ssse3_test_phsubd128 (&vals[i + 0], &vals[i + 4], r);
      71        fail += chk_128 (ck, r);
      72      }
      73  
      74    if (fail != 0)
      75      abort ();
      76  }