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_phaddsw (int *i1, int *i2, int *r)
      22  {
      23    __m64 t1 = *(__m64 *) i1;
      24    __m64 t2 = *(__m64 *) i2;
      25    *(__m64 *) r = _mm_hadds_pi16 (t1, t2);
      26    _mm_empty ();
      27  }
      28  
      29  /* Test the 128-bit form */
      30  static void
      31  ssse3_test_phaddsw128 (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_hadds_epi16 (t1, t2);
      37  }
      38  
      39  static short
      40  signed_saturate_to_word (int x)
      41  {
      42    if (x > (int) 0x7fff)
      43      return 0x7fff;
      44  
      45    if (x < (int) 0xffff8000)
      46      return 0x8000;
      47  
      48    return (short) x;
      49  }
      50  
      51  /* Routine to manually compute the results */
      52  static void
      53  compute_correct_result (int *i1, int *i2, int *r)
      54  {
      55    short *s1 = (short *) i1;
      56    short *s2 = (short *) i2;
      57    short *sout = (short *) r;
      58    int i;
      59  
      60    for (i = 0; i < 4; i++)
      61      sout[i] = signed_saturate_to_word(s1[2 * i] + s1[2 * i + 1]);
      62    for (i = 0; i < 4; i++)
      63      sout[i + 4] = signed_saturate_to_word(s2[2 * i] + s2[2 * i + 1]);
      64  }
      65  
      66  static void
      67  TEST (void)
      68  {
      69    int i;
      70    int r [4] __attribute__ ((aligned(16)));
      71    int ck [4];
      72    int fail = 0;
      73  
      74    for (i = 0; i < 256; i += 8)
      75      {
      76        /* Manually compute the result */
      77        compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
      78  
      79        /* Run the 64-bit tests */
      80        ssse3_test_phaddsw (&vals[i + 0], &vals[i + 2], &r[0]);
      81        ssse3_test_phaddsw (&vals[i + 4], &vals[i + 6], &r[2]);
      82        fail += chk_128 (ck, r);
      83  
      84        /* Run the 128-bit tests */
      85        ssse3_test_phaddsw128 (&vals[i + 0], &vals[i + 4], r);
      86        fail += chk_128 (ck, r);
      87      }
      88  
      89    if (fail != 0)
      90      abort ();
      91  }