gcc/testsuite/gcc.target/i386/sse4a-montss.c

   1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   2 /* { dg-options "-O2 -msse4a" } */
   3 #include <ammintrin.h>
   4 #include <stdlib.h>
   5 #include "../../gcc.dg/i386-cpuid.h"
   6
   7 static void sse4a_test (void);
   8
   9 int
  10 main ()
  11 {
  12   unsigned long cpu_facilities;
  13
  14   cpu_facilities = i386_extended_cpuid_ecx ();
  15
  16   /* Run SSE4a test only if host has SSE4a support.  */
  17   if ((cpu_facilities & bit_SSE4a))
  18     sse4a_test ();
  19
  20   exit (0);
  21 }
  22
  23 static void
  24 sse4a_test_movntss (float *out, float *in)
  25 {
  26   __m128 in_v4sf = _mm_load_ss (in);
  27   _mm_stream_ss (out, in_v4sf);
  28 }
  29
  30 static int
  31 chk_ss (float *v1, float *v2)
  32 {
  33   int n_fails = 0;
  34   if (v1[0] != v2[0])
  35     n_fails += 1;
  36   return n_fails;
  37 }
  38
  39 float vals[10] =
  40   {
  41     100.0,  200.0, 300.0, 400.0, 5.0,
  42     -1.0, .345, -21.5, 9.32,  8.41
  43   };
  44
  45 static void
  46 sse4a_test (void)
  47 {
  48   int i;
  49   int fail = 0;
  50   float *out;
  51
  52   out = (float *) malloc (sizeof (float));
  53   for (i = 0; i < 10; i += 1)
  54     {
  55       sse4a_test_movntss (out, &vals[i]);
  56
  57       fail += chk_ss (out, &vals[i]);
  58     }
  59
  60   if (fail != 0)
  61     abort ();
  62
  63   exit (0);
  64 }