1 /* Test that the NRV optimization doesn't cause a1 to change too soon.  This
2    is equivalent to c++/19317.  */
3 /* { dg-do run } */
4 
5 void abort (void);
6 
7 struct A
8 {
9   int i[100];
10 };
11 
12 struct A a1;
13 
f()14 struct A f ()
15 {
16   struct A a2;
17   a2.i[0] = 42;
18   /* a1.i[0] should still be 0 until we return. */
19   if (a1.i[0] != 0)
20     abort ();
21   return a2;
22 }
23 
main()24 int main()
25 {
26   a1 = f();
27   return 0;
28 }
29