1 // PR c++/65143
2 // { dg-do compile { target c++11 } }
3 // { dg-additional-options -fdump-tree-gimple }
4 // { dg-final { scan-tree-dump-times "vptr" 1 gimple } }
5
6 struct A
7 {
8 int i();
9 };
10
11 struct B : public virtual A
12 {
getB13 int get()
14 {
15 return A::i() + 1;
16 }
17 };
18
19 struct C final : public B
20 {
getfinal21 int get()
22 {
23 return A::i() + 2;
24 }
25 };
26
foo(C & c)27 int foo(C& c)
28 {
29 return c.get(); // Need not go via vtable pointer as class C is final
30 }
31
foo(B & b2)32 int foo(B& b2)
33 {
34 return b2.get(); // This has to go via vtable as most derived class can change the location of A
35 }
36