xref: /aosp_15_r20/external/clang/test/CodeGenCXX/thunk-linkonce-odr.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 %s -triple i386-unknown-unknown -emit-llvm -o - | FileCheck %s
2*67e74705SXin Li // <rdar://problem/7929157> & <rdar://problem/8104369>
3*67e74705SXin Li 
4*67e74705SXin Li struct A {
fA5*67e74705SXin Li   virtual int f() { return 1; }
6*67e74705SXin Li };
7*67e74705SXin Li 
8*67e74705SXin Li struct B {
fB9*67e74705SXin Li   virtual int f() { return 2; }
10*67e74705SXin Li };
11*67e74705SXin Li 
12*67e74705SXin Li struct C : A, B {
fC13*67e74705SXin Li   virtual int f() { return 3; }
14*67e74705SXin Li };
15*67e74705SXin Li 
16*67e74705SXin Li struct D : C {
fD17*67e74705SXin Li   virtual int f() { return 4; }
18*67e74705SXin Li };
19*67e74705SXin Li 
f(D * d)20*67e74705SXin Li static int f(D* d) {
21*67e74705SXin Li   B* b = d;
22*67e74705SXin Li   return b->f();
23*67e74705SXin Li };
24*67e74705SXin Li 
g()25*67e74705SXin Li int g() {
26*67e74705SXin Li   D d;
27*67e74705SXin Li   return f(&d);
28*67e74705SXin Li }
29*67e74705SXin Li 
30*67e74705SXin Li // Thunks should be marked as "linkonce ODR" not "weak".
31*67e74705SXin Li //
32*67e74705SXin Li // CHECK: define linkonce_odr i32 @_ZThn{{[48]}}_N1D1fEv
33*67e74705SXin Li // CHECK: define linkonce_odr i32 @_ZThn{{[48]}}_N1C1fEv
34