1  /* { dg-do run } */
       2  /* { dg-options "-O3 -mpower8-vector -Wno-psabi" } */
       3  /* { dg-require-effective-target p8vector_hw } */
       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  #ifndef __AVX__
      20  /* Test the 64-bit form */
      21  static void
      22  ssse3_test_pmaddubsw (__m64 *i1, __m64 *i2, __m64 *r)
      23  {
      24    *(__m64 *) r = _mm_maddubs_pi16 (*i1, *i2);
      25    _mm_empty ();
      26  }
      27  #endif
      28  
      29  /* Test the 128-bit form */
      30  static void
      31  ssse3_test_pmaddubsw128 (__m128i *i1, __m128i *i2, __m128i *r)
      32  {
      33    /* Assumes incoming pointers are 16-byte aligned */
      34    *r = _mm_maddubs_epi16 (*i1, *i2);
      35  }
      36  
      37  static short
      38  signed_saturate_to_word(int x)
      39  {
      40    if (x > (int) 0x7fff)
      41      return 0x7fff;
      42  
      43    if (x < (int) 0xffff8000)
      44      return 0x8000;
      45  
      46    return (short) x;
      47  }
      48  
      49  /* Routine to manually compute the results */
      50  static void
      51  compute_correct_result (unsigned char *i1, signed char *i2, short *r)
      52  {
      53    int t0;
      54    int i;
      55  
      56    for (i = 0; i < 8; i++)
      57      { 
      58        t0 = ((int) i1[2 * i] * (int) i2[2 * i] +
      59  	    (int) i1[2 * i + 1] * (int) i2[2 * i + 1]);
      60        r[i] = signed_saturate_to_word (t0);
      61      }
      62  }
      63  
      64  static void
      65  TEST (void)
      66  {
      67    int i;
      68    union data r __attribute__ ((aligned(16)));
      69    union data ck;
      70    int fail = 0;
      71  
      72    for (i = 0; i < ARRAY_SIZE (vals) - 1; i++)
      73      {
      74        /* Manually compute the result */
      75        compute_correct_result (&vals[i + 0].ub[0], &vals[i + 1].b[0], &ck.h[0]);
      76  
      77  #ifndef __AVX__
      78        /* Run the 64-bit tests */
      79        ssse3_test_pmaddubsw (&vals[i + 0].ll[0], &vals[i + 1].ll[0], &r.ll[0]);
      80        ssse3_test_pmaddubsw (&vals[i + 0].ll[1], &vals[i + 1].ll[1], &r.ll[1]);
      81        fail += chk_128 (ck.m[0], r.m[0]);
      82  #endif
      83  
      84        /* Run the 128-bit tests */
      85        ssse3_test_pmaddubsw128 (&vals[i + 0].m[0], &vals[i + 1].m[0], &r.m[0]);
      86        fail += chk_128 (ck.m[0], r.m[0]);
      87      }
      88  
      89    if (fail != 0)
      90      abort ();
      91  }