xref: /llvm-project/clang/test/CodeGenCXX/microsoft-interface.cpp (revision 0f46e31cfbf415fcd3d3ce121bef94e92c6ccfc8)
1 // RUN: %clang_cc1 -std=c++11 -fms-extensions -Wno-microsoft -triple=i386-pc-windows-gnu -emit-llvm %s -o - | FileCheck %s
2 
3 __interface I {
4   int test() {
5     return 1;
6   }
7 };
8 
9 struct S : I {
testS10   virtual int test() override {
11     return I::test();
12   }
13 };
14 
fn()15 int fn() {
16   S s;
17   return s.test();
18 }
19 
20 // CHECK: @_ZTV1S = linkonce_odr dso_local unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTI1S, ptr @_ZN1S4testEv] }
21 
22 // CHECK-LABEL: define dso_local noundef i32 @_Z2fnv()
23 // CHECK:   call x86_thiscallcc void @_ZN1SC1Ev(ptr {{[^,]*}} %s)
24 // CHECK:   %{{[.0-9A-Z_a-z]+}} = call x86_thiscallcc noundef i32 @_ZN1S4testEv(ptr {{[^,]*}} %s)
25 
26 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @_ZN1SC1Ev(ptr {{[^,]*}} %this)
27 // CHECK:   call x86_thiscallcc void @_ZN1SC2Ev(ptr {{[^,]*}} %{{[.0-9A-Z_a-z]+}})
28 
29 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc noundef i32 @_ZN1S4testEv(ptr {{[^,]*}} %this)
30 // CHECK:   %{{[.0-9A-Z_a-z]+}} = call x86_thiscallcc noundef i32 @_ZN1I4testEv(ptr {{[^,]*}} %{{[.0-9A-Z_a-z]+}})
31 
32 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @_ZN1SC2Ev(ptr {{[^,]*}} %this)
33 // CHECK:   call x86_thiscallcc void @_ZN1IC2Ev(ptr {{[^,]*}} %{{[.0-9A-Z_a-z]+}})
34 // CHECK:   store ptr getelementptr inbounds inrange(-8, 4) ({ [3 x ptr] }, ptr @_ZTV1S, i32 0, i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
35 
36 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @_ZN1IC2Ev(ptr {{[^,]*}} %this)
37 // CHECK:   store ptr getelementptr inbounds inrange(-8, 4) ({ [3 x ptr] }, ptr @_ZTV1I, i32 0, i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
38 
39 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc noundef i32 @_ZN1I4testEv(ptr {{[^,]*}} %this)
40 // CHECK:   ret i32 1
41