gcc/testsuite/gcc.target/i386/ssse3-pabsd.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target ssse3 } */
   3 /* { dg-options "-O2 -fno-strict-aliasing -mssse3" } */
   4
   5 #include "ssse3-check.h"
   6 #include "ssse3-vals.h"
   7
   8 #include <tmmintrin.h>
   9
  10 /* Test the 64-bit form */
  11 static void
  12 ssse3_test_pabsd (int *i1, int *r)
  13 {
  14   __m64 t1 = *(__m64 *) i1;
  15   *(__m64 *) r = _mm_abs_pi32 (t1);
  16   _mm_empty ();
  17 }
  18
  19 /* Test the 128-bit form */
  20 static void
  21 ssse3_test_pabsd128 (int *i1, int *r)
  22 {
  23   /* Assumes incoming pointers are 16-byte aligned */
  24   __m128i t1 = *(__m128i *) i1;
  25   *(__m128i *) r = _mm_abs_epi32 (t1);
  26 }
  27
  28 /* Routine to manually compute the results */
  29 static void
  30 compute_correct_result (int *i1, int *r)
  31 {
  32   int i;
  33
  34   for (i = 0; i < 4; i++)
  35     if (i1[i] < 0)
  36       r[i] = -i1[i];
  37     else
  38       r[i] = i1[i];
  39 }
  40
  41 static void
  42 ssse3_test (void)
  43 {
  44   int i;
  45   int r [4] __attribute__ ((aligned(16)));
  46   int ck [4];
  47   int fail = 0;
  48
  49   for (i = 0; i < 256; i += 4)
  50     {
  51       /* Manually compute the result */
  52       compute_correct_result(&vals[i + 0], ck);
  53
  54       /* Run the 64-bit tests */
  55       ssse3_test_pabsd (&vals[i + 0], &r[0]);
  56       ssse3_test_pabsd (&vals[i + 2], &r[2]);
  57       fail += chk_128 (ck, r);
  58
  59       /* Run the 128-bit tests */
  60       ssse3_test_pabsd128 (&vals[i + 0], r);
  61       fail += chk_128(ck, r);
  62     }
  63
  64   if (fail != 0)
  65     abort ();
  66 }