gcc/testsuite/gcc.target/i386/sse2-vec-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3
   4 #include "sse2-check.h"
   5
   6 #include <emmintrin.h>
   7
   8 static void
   9 sse2_test (void)
  10 {
  11   union
  12     {
  13       __m128i x;
  14       char c[16];
  15       short s[8];
  16       int i[4];
  17       long long ll[2];
  18     } val1;
  19   long long res[2];
  20   int masks[2];
  21   int i;
  22
  23   for (i = 0; i < 16; i++)
  24     val1.c[i] = i;
  25
  26   res[0] = __builtin_ia32_vec_ext_v2di ((__v2di)val1.x, 0);
  27   res[1] = __builtin_ia32_vec_ext_v2di ((__v2di)val1.x, 1);
  28
  29   for (i = 0; i < 2; i++)
  30     masks[i] = i;
  31
  32   for (i = 0; i < 2; i++)
  33     if (res[i] != val1.ll [masks[i]])
  34       abort ();
  35 }