1 | // RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -o %t.ll -fdump-vtable-layouts >%t |
2 | // RUN: FileCheck %s < %t |
3 | // RUN: FileCheck --check-prefix=MANGLING %s < %t.ll |
4 | |
5 | struct A { |
6 | virtual void f(); |
7 | }; |
8 | |
9 | struct B { |
10 | virtual void g() = 0; |
11 | virtual void h(); |
12 | }; |
13 | |
14 | struct C : A, B { |
15 | // CHECK-LABEL: VFTable for 'A' in 'C' (1 entry) |
16 | // CHECK-NEXT: 0 | void A::f() |
17 | |
18 | // CHECK-LABEL: VFTable for 'B' in 'C' (2 entries) |
19 | // CHECK-NEXT: 0 | void C::g() |
20 | // CHECK-NEXT: 1 | void B::h() |
21 | |
22 | // CHECK-LABEL: VFTable indices for 'C' (1 entry). |
23 | // CHECK-NEXT: via vfptr at offset 4 |
24 | // CHECK-NEXT: 0 | void C::g() |
25 | |
26 | // MANGLING-DAG: @"??_7C@@6BA@@@" |
27 | // MANGLING-DAG: @"??_7C@@6BB@@@" |
28 | |
29 | // Overrides only the right child's method (B::g), |
30 | // needs this adjustment but not thunks. |
31 | virtual void g(); |
32 | }; |
33 | |
34 | C c; |
35 | void build_vftable(C *obj) { obj->g(); } |
36 | |