gcc/testsuite/gcc.target/i386/sse3-movshdup.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse3 -mfpmath=sse" } */
   3
   4 #include "sse3-check.h"
   5
   6 #include <pmmintrin.h>
   7
   8 static void
   9 sse3_test_movshdup_reg (float *i1, float *r)
  10 {
  11   __m128 t1 = _mm_loadu_ps (i1);
  12   __m128 t2 = _mm_movehdup_ps (t1);
  13
  14   _mm_storeu_ps (r, t2);
  15 }
  16
  17 static void
  18 sse3_test_movshdup_reg_subsume (float *i1, float *r)
  19 {
  20   __m128 t1 = _mm_load_ps (i1);
  21   __m128 t2 = _mm_movehdup_ps (t1);
  22
  23   _mm_storeu_ps (r, t2);
  24 }
  25
  26 static int
  27 chk_ps (float *v1, float *v2)
  28 {
  29   int i;
  30   int n_fails = 0;
  31
  32   for (i = 0; i < 4; i++)
  33     if (v1[i] != v2[i])
  34       n_fails += 1;
  35
  36   return n_fails;
  37 }
  38
  39 static float p1[4] __attribute__ ((aligned(16)));
  40 static float p2[4];
  41 static float ck[4];
  42
  43 static float vals[80] =
  44   {
  45     100.0,  200.0, 300.0, 400.0, 5.0, -1.0, .345, -21.5,
  46     1100.0, 0.235, 321.3, 53.40, 0.3, 10.0, 42.0, 32.52,
  47     32.6,   123.3, 1.234, 2.156, 0.1, 3.25, 4.75, 32.44,
  48     12.16,  52.34, 64.12, 71.13, -.1, 2.30, 5.12, 3.785,
  49     541.3,  321.4, 231.4, 531.4, 71., 321., 231., -531.,
  50     23.45,  23.45, 23.45, 23.45, 23.45, 23.45, 23.45, 23.45,
  51     23.45,  -1.43, -6.74, 6.345, -20.1, -20.1, -40.1, -40.1,
  52     1.234,  2.345, 3.456, 4.567, 5.678, 6.789, 7.891, 8.912,
  53     -9.32,  -8.41, -7.50, -6.59, -5.68, -4.77, -3.86, -2.95,
  54     9.32,  8.41, 7.50, 6.59, -5.68, -4.77, -3.86, -2.95
  55   };
  56
  57 static void
  58 sse3_test (void)
  59 {
  60   int i;
  61   int fail = 0;
  62
  63   for (i = 0; i < 80; i += 2)
  64     {
  65       p1[0] = 0.0;
  66       p1[1] = vals[i+0];
  67       p1[2] = 1.0;
  68       p1[3] = vals[i+1];
  69
  70       ck[0] = p1[1];
  71       ck[1] = p1[1];
  72       ck[2] = p1[3];
  73       ck[3] = p1[3];
  74
  75       sse3_test_movshdup_reg (p1, p2);
  76
  77       fail += chk_ps (ck, p2);
  78
  79       sse3_test_movshdup_reg_subsume (p1, p2);
  80
  81       fail += chk_ps (ck, p2);
  82     }
  83
  84   if (fail != 0)
  85     abort ();
  86 }