1  /* PR middle-end/55094 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-fcompare-debug -Os" } */
       4  /* { dg-additional-options "-fomit-frame-pointer -fno-asynchronous-unwind-tables -mpreferred-stack-boundary=2" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
       5  
       6  extern int fn (long);
       7  int v;
       8  
       9  int
      10  foo (int x, long *y)
      11  {
      12    if (x)
      13      {
      14        fn (y[0]);
      15        __builtin_trap ();
      16      }
      17    __builtin_trap ();
      18  }
      19  
      20  int
      21  bar (int x, long *y)
      22  {
      23    if (x)
      24      {
      25        fn (y[0]);
      26        v = 1;
      27        __builtin_unreachable ();
      28      }
      29    v = 1;
      30    __builtin_unreachable ();
      31  }
      32  
      33  int
      34  baz (int x, long *y)
      35  {
      36    if (x)
      37      {
      38        fn (y[0]);
      39        v = 1;
      40        __builtin_unreachable ();
      41      }
      42    v = 1;
      43    int w = 1;
      44    __builtin_unreachable ();
      45  }