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

   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 #include "ssse3-vals.h"
  15
  16 #include <tmmintrin.h>
  17
  18 /* Test the 64-bit form */
  19 static void
  20 ssse3_test_psignd (int *i1, int *i2, int *r)
  21 {
  22   __m64 t1 = *(__m64 *) i1;
  23   __m64 t2 = *(__m64 *) i2;
  24   *(__m64 *) r = _mm_sign_pi32 (t1, t2);
  25   _mm_empty ();
  26 }
  27
  28 /* Test the 128-bit form */
  29 static void
  30 ssse3_test_psignd128 (int *i1, int *i2, int *r)
  31 {
  32   /* Assumes incoming pointers are 16-byte aligned */
  33   __m128i t1 = *(__m128i *) i1;
  34   __m128i t2 = *(__m128i *) i2;
  35   *(__m128i *)r = _mm_sign_epi32 (t1, t2);
  36 }
  37
  38 /* Routine to manually compute the results */
  39 static void
  40 compute_correct_result (int *i1, int *i2, int *r)
  41 {
  42   int i;
  43
  44   for (i = 0; i < 4; i++)
  45     if (i2[i] < 0)
  46       r[i] = -i1[i];
  47     else if (i2[i] == 0)
  48       r[i] = 0;
  49     else
  50       r[i] = i1[i];
  51 }
  52
  53 static void
  54 TEST (void)
  55 {
  56   int i;
  57   int r [4] __attribute__ ((aligned(16)));
  58   int ck [4];
  59   int fail = 0;
  60
  61   for (i = 0; i < 256; i += 8)
  62     {
  63       /* Manually compute the result */
  64       compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
  65
  66       /* Run the 64-bit tests */
  67       ssse3_test_psignd (&vals[i + 0], &vals[i + 4], &r[0]);
  68       ssse3_test_psignd (&vals[i + 2], &vals[i + 6], &r[2]);
  69       fail += chk_128 (ck, r);
  70
  71       /* Run the 128-bit tests */
  72       ssse3_test_psignd128 (&vals[i + 0], &vals[i + 4], r);
  73       fail += chk_128 (ck, r);
  74     }
  75
  76   if (fail != 0)
  77     abort ();
  78 }