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 #ifndef __AVX__
  19 /* Test the 64-bit form */
  20 static void
  21 ssse3_test_psignd (int *i1, int *i2, int *r)
  22 {
  23   __m64 t1 = *(__m64 *) i1;
  24   __m64 t2 = *(__m64 *) i2;
  25   *(__m64 *) r = _mm_sign_pi32 (t1, t2);
  26   _mm_empty ();
  27 }
  28 #endif
  29
  30 /* Test the 128-bit form */
  31 static void
  32 ssse3_test_psignd128 (int *i1, int *i2, int *r)
  33 {
  34   /* Assumes incoming pointers are 16-byte aligned */
  35   __m128i t1 = *(__m128i *) i1;
  36   __m128i t2 = *(__m128i *) i2;
  37   *(__m128i *)r = _mm_sign_epi32 (t1, t2);
  38 }
  39
  40 /* Routine to manually compute the results */
  41 static void
  42 compute_correct_result (int *i1, int *i2, int *r)
  43 {
  44   int i;
  45
  46   for (i = 0; i < 4; i++)
  47     if (i2[i] < 0)
  48       r[i] = -i1[i];
  49     else if (i2[i] == 0)
  50       r[i] = 0;
  51     else
  52       r[i] = i1[i];
  53 }
  54
  55 static void
  56 TEST (void)
  57 {
  58   int i;
  59   int r [4] __attribute__ ((aligned(16)));
  60   int ck [4];
  61   int fail = 0;
  62
  63   for (i = 0; i < 256; i += 8)
  64     {
  65       /* Manually compute the result */
  66       compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
  67
  68 #ifndef __AVX__
  69       /* Run the 64-bit tests */
  70       ssse3_test_psignd (&vals[i + 0], &vals[i + 4], &r[0]);
  71       ssse3_test_psignd (&vals[i + 2], &vals[i + 6], &r[2]);
  72       fail += chk_128 (ck, r);
  73 #endif
  74
  75       /* Run the 128-bit tests */
  76       ssse3_test_psignd128 (&vals[i + 0], &vals[i + 4], r);
  77       fail += chk_128 (ck, r);
  78     }
  79
  80   if (fail != 0)
  81     abort ();
  82 }