gnu/dist/gcc4/gcc/testsuite/gcc.target/i386/sse-3.c

   1 /* PR target/21149 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -msse" } */
   4 #include <xmmintrin.h>
   5 #include "../../gcc.dg/i386-cpuid.h"
   6
   7 extern void abort (void);
   8
   9 void
  10 __attribute__((noinline))
  11 check (__m128 x, float a, float b, float c, float d)
  12 {
  13   union { __m128 m; float f[4]; } u;
  14   u.m = x;
  15   if (u.f[0] != a || u.f[1] != b || u.f[2] != c || u.f[3] != d)
  16     abort ();
  17 }
  18
  19 static inline
  20 void
  21 foo (__m128 *x)
  22 {
  23   __m128 y = _mm_setzero_ps ();
  24   __m128 v = _mm_movehl_ps (y, *x);
  25   __m128 w = _mm_movehl_ps (*x, y);
  26   check (*x, 9, 1, 2, -3);
  27   check (v, 2, -3, 0, 0);
  28   check (w, 0, 0, 2, -3);
  29 }
  30
  31 void
  32 __attribute__((noinline))
  33 run_tests (void)
  34 {
  35   __m128 y = _mm_set_ps (-3, 2, 1, 9);
  36   foo (&y);
  37 }
  38
  39 int
  40 main ()
  41 {
  42   unsigned long cpu_facilities;
  43
  44   cpu_facilities = i386_cpuid ();
  45
  46   if ((cpu_facilities & (bit_MMX | bit_SSE | bit_CMOV))
  47       != (bit_MMX | bit_SSE | bit_CMOV))
  48     /* If host has no vector support, pass.  */
  49     return 0;
  50
  51   run_tests ();
  52   return 0;
  53 }