gcc/testsuite/gcc.dg/20021006-1.c

   1 /* PR target/7559
   2    This testcase was miscompiled on x86-64 due to wrong access to the struct
   3    members.  */
   4
   5 extern void abort();
   6
   7 struct A {
   8   long x;
   9 };
  10
  11 struct R {
  12   struct A a, b;
  13 };
  14
  15 struct R R = {
  16   {100}, {200}
  17 };
  18
  19 void f(struct R r) {
  20   if (r.a.x != R.a.x || r.b.x != R.b.x)
  21     abort();
  22 }
  23
  24 int main() {
  25   f(R);
  26   return 0;
  27 }