gcc/testsuite/gcc.c-torture/execute/vector-1.c

   1 /* Check that vector extraction works correctly. */
   2
   3 #define vector __attribute__((vector_size(16) ))
   4
   5 int f0(vector int t)
   6 {
   7   return ((int*)&t)[0];
   8 }
   9 int f1(vector int t)
  10 {
  11   return ((int*)&t)[1];
  12 }
  13 int f2(vector int t)
  14 {
  15   return ((int*)&t)[2];
  16 }
  17 int f3(vector int t)
  18 {
  19   return ((int*)&t)[3];
  20 }
  21 int main(void)
  22 {
  23   vector int a = {0, 1, 2, 3};
  24   /* Make sure that we have the correct size for the vectors. */
  25   if (sizeof(int) != 4)
  26     __builtin_exit (0);
  27   if (f0(a) != 0)
  28     __builtin_abort ();
  29   if (f1(a) != 1)
  30     __builtin_abort ();
  31   if (f2(a) != 2)
  32     __builtin_abort ();
  33   if (f3(a) != 3)
  34     __builtin_abort ();
  35   return 0;
  36 }