gcc/testsuite/gcc.c-torture/execute/vector-2.c

   1 /* Check that vector insertion works correctly. */
   2
   3 #define vector __attribute__((vector_size(16) ))
   4
   5 vector int f0(vector int t, int a)
   6 {
   7  ((int*)&t)[0] = a;
   8  return t;
   9 }
  10 vector int f1(vector int t, int a)
  11 {
  12  ((int*)&t)[1] = a;
  13  return t;
  14 }
  15 vector int f2(vector int t, int a)
  16 {
  17  ((int*)&t)[2] = a;
  18  return t;
  19 }
  20 vector int f3(vector int t, int a)
  21 {
  22  ((int*)&t)[3] = a;
  23  return t;
  24 }
  25 int main(void)
  26 {
  27   vector int a = {0, 0, 0, 0};
  28   vector int b = {1, 0, 0, 0};
  29   vector int c = {0, 1, 0, 0};
  30   vector int d = {0, 0, 1, 0};
  31   vector int e = {0, 0, 0, 1};
  32   vector int a0;
  33   a0 = f0(a, 1);
  34   if (memcmp (&a0, &b, sizeof(a0)))
  35     __builtin_abort ();
  36   a0 = f1(a, 1);
  37   if (memcmp (&a0, &c, sizeof(a0)))
  38     __builtin_abort ();
  39   a0 = f2(a, 1);
  40   if (memcmp (&a0, &d, sizeof(a0)))
  41     __builtin_abort ();
  42   a0 = f3(a, 1);
  43   if (memcmp (&a0, &e, sizeof(a0)))
  44     __builtin_abort ();
  45   return 0;
  46 }