1  /* PR rtl-optimization/106590 } */
       2  /* { dg-do run } */
       3  /* { dg-additional-options "-mtune=skylake" { target { i?86-*-* x86_64-*-* } } } */
       4  
       5  typedef struct A { short a; } A;
       6  typedef A *B;
       7  typedef struct C { int c, d; } C;
       8  typedef C *D;
       9  
      10  B
      11  foo (void)
      12  {
      13    static A r = { .a = 1 };
      14    return &r;
      15  }
      16  
      17  D
      18  bar (void)
      19  {
      20    static C r = { .c = 1, .d = 23 };
      21    return &r;
      22  }
      23  
      24  static inline int __attribute__((always_inline))
      25  baz (short a)
      26  {
      27    int e = 1, f;
      28    short g;
      29    D h;
      30  
      31    switch (a)
      32      {
      33      case 1:
      34        f = 23;
      35        g = 1;
      36        break;
      37      case 2:
      38        f = 20;
      39        g = 2;
      40        break;
      41      }
      42  
      43    h = bar ();
      44  
      45    if (h->d != f || h->c != g)
      46      __builtin_abort ();
      47    return e;
      48  }
      49  
      50  int
      51  qux (void)
      52  {
      53    B i = foo ();
      54    int e = 1;
      55  
      56    switch (i->a)
      57      {
      58      case 1:
      59      case 2:
      60        e = baz (i->a);
      61        break;
      62      case 3:
      63        e = 0;
      64        break;
      65      }
      66  
      67    return e;
      68  }
      69  
      70  int
      71  main ()
      72  {
      73    qux ();
      74    return 0;
      75  }