gcc/testsuite/gcc.dg/pr91069.c

   1 /* { dg-do run } */
   2 /* { dg-options "-std=gnu11" } */
   3
   4 typedef double v2df __attribute__((vector_size(2 * sizeof (double))));
   5 typedef long long v2di __attribute__((vector_size(2 * sizeof (long long))));
   6
   7 void foo (v2df *res, v2df *src)
   8 {
   9   v2df x = *src;
  10   *res = __builtin_shuffle ((v2df) { 1.0, 0.0 }, x, (v2di) { 1, 3 });
  11 }
  12
  13 int main()
  14 {
  15   v2df x = (v2df) { 0.0, 2.0 };
  16   foo (&x, &x);
  17   if (x[0] != 0.0 || x[1] != 2.0)
  18     __builtin_abort ();
  19   return 0;
  20 }