1  /* { dg-options "-O" } */
       2  
       3  #pragma GCC aarch64 "arm_neon.h"
       4  typedef __Int64x1_t int64x1_t;
       5  void foo (int64x1x4_t);
       6  
       7  void
       8  bar (int64x1_t a)
       9  {
      10    for (;;) {
      11      int64x1x4_t b;
      12      b.val[3] = a;
      13      foo (b);
      14    }
      15  }