1  /* PR target/108599 */
       2  /* { dg-do run { target avx2 } } */
       3  /* { dg-options "-O2 -mavx2 -mtune=skylake-avx512" } */
       4  
       5  #include "avx2-check.h"
       6  
       7  struct S { unsigned long long a, b, c, d; };
       8  
       9  __attribute__((noipa)) void
      10  foo (unsigned long long x, unsigned long long y,
      11       unsigned long long z, unsigned long long w, const struct S s)
      12  {
      13    if (s.a != x || s.b != y || s.c != z || s.d != w)
      14      abort ();
      15  }
      16  
      17  typedef unsigned long long V __attribute__((may_alias, vector_size (4 * sizeof (unsigned long long))));
      18  
      19  static void
      20  avx2_test (void)
      21  {
      22    {
      23      struct S s;
      24      *(V *)&s = (V) { 16, 0, 0, 0 };
      25      foo (16, 0, 0, 0, s);
      26    }
      27    {
      28      struct S s;
      29      *(V *)&s = (V) { 16, 16, 0, 0 };
      30      foo (16, 16, 0, 0, s);
      31    }
      32  }