gcc/testsuite/gcc.c-torture/compile/20020109-1.c

   1 /* This testcase ICEd when 2 different successors of a basic block
   2    were successfully threaded and try_forward_edges was not expecting
   3    that.  */
   4
   5 typedef struct A
   6 {
   7   struct A *s, *t;
   8   unsigned int u;
   9 } A;
  10
  11 void bar (A *);
  12
  13 void
  14 foo (A *x, A *y, A *z)
  15 {
  16   while (y
  17          && (((y && y->t && y->t->u) ? y : z)->t
  18              == ((x && x->t && x->t->u) ? x : z)->t))
  19     y = y->s;
  20
  21   if (y)
  22     bar (y);
  23 }