gcc/testsuite/gcc.dg/pr109303.c

   1 /* PR ipa/109303 */
   2 /* { dg-do compile { target lp64 } } */
   3 /* { dg-options "-O2" } */
   4
   5 struct __attribute__((packed)) A { char c1; short a1[__INT_MAX__]; };
   6 struct __attribute__((packed)) B { char c2; short a2[100]; };
   7 struct S { struct A p1; struct B p2[4]; };
   8 void bar (short int);
   9
  10 static void
  11 foo (struct S *q)
  12 {
  13   for (int i = 0; i < q->p1.c1; i++)
  14     for (int j = 0; j < q->p2[i].c2; j++)
  15       bar (q->p2[i].a2[j]);
  16 }
  17
  18 int
  19 main ()
  20 {
  21   struct S q = {};
  22   q.p2[0].c2 = q.p2[1].c2 = 3;
  23   foo (&q);
  24 }