1 // PR tree-optimization/22488
2 // This testcase is really a C++ FE bug in represnting virtual inheritance
3 // It gives the appearance to the middle end that the fields exist twice
4 // which resulted in a very confused structure analyzer
5 // { dg-do compile }
6 // { dg-options "-O" }
7 struct X
8 {
9 int i0, i1;
10 char c;
11 };
12
13 struct A
14 {
15 int i;
16 char c0, c1;
17
18 virtual ~A();
19 };
20
21 struct B : virtual A {};
22
23 struct C : B
24 {
25 X x;
26
barC27 void bar(X y) { x = y; }
28 };
29
foo()30 void foo()
31 {
32 C().bar(X());
33 }
34