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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [i386/] [ssse3-pmaddubsw.c] - Blame information for rev 318

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Line No. Rev Author Line
1 318 jeremybenn
/* { dg-do run } */
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/* { dg-require-effective-target ssse3 } */
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/* { dg-options "-O2 -fno-strict-aliasing -mssse3" } */
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#ifndef CHECK_H
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#define CHECK_H "ssse3-check.h"
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#endif
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#ifndef TEST
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#define TEST ssse3_test
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#endif
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#include CHECK_H
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#include "ssse3-vals.h"
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#include <tmmintrin.h>
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#ifndef __AVX__
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/* Test the 64-bit form */
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static void
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ssse3_test_pmaddubsw (int *i1, int *i2, int *r)
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{
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  __m64 t1 = *(__m64 *) i1;
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  __m64 t2 = *(__m64 *) i2;
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  *(__m64 *) r = _mm_maddubs_pi16 (t1, t2);
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  _mm_empty ();
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}
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#endif
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/* Test the 128-bit form */
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static void
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ssse3_test_pmaddubsw128 (int *i1, int *i2, int *r)
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{
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  /* Assumes incoming pointers are 16-byte aligned */
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  __m128i t1 = *(__m128i *) i1;
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  __m128i t2 = *(__m128i *) i2;
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  *(__m128i *) r = _mm_maddubs_epi16 (t1, t2);
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}
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static short
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signed_saturate_to_word(int x)
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{
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  if (x > (int) 0x7fff)
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    return 0x7fff;
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  if (x < (int) 0xffff8000)
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    return 0x8000;
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  return (short) x;
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}
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/* Routine to manually compute the results */
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static void
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compute_correct_result (int *i1, int *i2, int *r)
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{
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  unsigned char *ub1 = (unsigned char *) i1;
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  char *sb2 = (char *) i2;
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  short *sout = (short *) r;
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  int t0;
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  int i;
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  for (i = 0; i < 8; i++)
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    {
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      t0 = ((int) ub1[2 * i] * (int) sb2[2 * i] +
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            (int) ub1[2 * i + 1] * (int) sb2[2 * i + 1]);
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      sout[i] = signed_saturate_to_word (t0);
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    }
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}
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static void
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TEST (void)
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{
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  int i;
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  int r [4] __attribute__ ((aligned(16)));
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  int ck [4];
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  int fail = 0;
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  for (i = 0; i < 256; i += 8)
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    {
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      /* Manually compute the result */
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      compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
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#ifndef __AVX__
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      /* Run the 64-bit tests */
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      ssse3_test_pmaddubsw (&vals[i + 0], &vals[i + 4], &r[0]);
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      ssse3_test_pmaddubsw (&vals[i + 2], &vals[i + 6], &r[2]);
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      fail += chk_128 (ck, r);
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#endif
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      /* Run the 128-bit tests */
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      ssse3_test_pmaddubsw128 (&vals[i + 0], &vals[i + 4], r);
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      fail += chk_128 (ck, r);
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    }
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  if (fail != 0)
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    abort ();
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}

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