xref: /aosp_15_r20/external/clang/test/SemaCXX/vtordisp-mode.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=0 -DVTORDISP_MODE=0 %s -verify
2*67e74705SXin Li // RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=1 -DVTORDISP_MODE=1 %s -verify
3*67e74705SXin Li // RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=2 -DVTORDISP_MODE=2 %s -verify
4*67e74705SXin Li 
5*67e74705SXin Li // expected-no-diagnostics
6*67e74705SXin Li 
7*67e74705SXin Li struct A {
8*67e74705SXin Li   A();
9*67e74705SXin Li   virtual void foo();
10*67e74705SXin Li };
11*67e74705SXin Li 
12*67e74705SXin Li // At /vd1, there is a vtordisp before A.
13*67e74705SXin Li struct B : virtual A {
14*67e74705SXin Li   B();
15*67e74705SXin Li   virtual void foo();
16*67e74705SXin Li   virtual void bar();
17*67e74705SXin Li };
18*67e74705SXin Li 
19*67e74705SXin Li // At /vd2, there is a vtordisp before B, but only because it has its own
20*67e74705SXin Li // vftable.
21*67e74705SXin Li struct C : virtual B {
22*67e74705SXin Li   C();
23*67e74705SXin Li };
24*67e74705SXin Li 
25*67e74705SXin Li // There are two vfptrs, two vbptrs, and some number of vtordisps.
26*67e74705SXin Li static_assert(sizeof(C) == 2 * 4 + 2 * 4 + 4 * VTORDISP_MODE, "size mismatch");
27