gcc/testsuite/gcc.dg/torture/pr69542.c

   1 /* PR middle-end/69542 */
   2 /* { dg-do compile } */
   3 /* { dg-additional-options "-fcompare-debug" } */
   4
   5 typedef struct A *B;
   6 extern int *a[];
   7 struct C { B b; struct D *d; };
   8 struct A { struct { struct C e[1]; long long f[1]; } u; };
   9 struct D { int g; B h[100]; };
  10 int b, c, e, g;
  11 B d, f;
  12 void foo (void) __attribute__ ((__noreturn__));
  13 int bar (void)
  14 {
  15   int i = 0;
  16   do
  17     {
  18       if ('E' && a[e][0] != 'V')
  19         foo ();
  20       struct D *k = d->u.e[0].d;
  21       B x = k->h[i], o = f->u.e[0].b;
  22       if (b)
  23         return 0;
  24       if (a[g][0] != 'E' && a[g][0] != 'V')
  25         foo ();
  26       struct D *n = o->u.e[0].d;
  27       int r = x->u.f[0];
  28       (void) r;
  29       if (c)
  30         foo ();
  31       B y = n->h[x->u.f[0]];
  32       if (i != y->u.f[0])
  33         return 0;
  34       i++;
  35     }
  36   while (1);
  37 }