gcc/testsuite/gcc.target/i386/sse-set-ps-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse" } */
   3
   4 #include "sse-check.h"
   5
   6 #ifdef DEBUG
   7 #include <stdio.h>
   8 #endif
   9
  10 #include <xmmintrin.h>
  11
  12 static void
  13 __attribute__((noinline))
  14 test (float *v)
  15 {
  16   union
  17     {
  18       __m128 x;
  19       float f[4];
  20     } u;
  21   unsigned int i;
  22
  23   u.x = _mm_set_ps (v[3], v[2], v[1], v[0]);
  24
  25   for (i = 0; i < sizeof (v) / sizeof (v[0]); i++)
  26     if (v[i] != u.f[i])
  27       {
  28 #ifdef DEBUG
  29         printf ("%i: %f != %f\n", i, v[i], u.f[i]);
  30 #endif
  31         abort ();
  32       }
  33 }
  34
  35 static void
  36 sse_test (void)
  37 {
  38   float v[4] = { -3, 2, 1, 9 };
  39   test (v);
  40 }