1 // RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -o - | FileCheck %s
2 
3 // For now, just make sure x86_64 doesn't crash.
4 // RUN: %clang_cc1 %s -fno-rtti -triple=x86_64-pc-win32 -emit-llvm -o %t
5 
6 struct A {
7   virtual void f();
8 };
9 
10 struct B {
11   virtual void f();
12 };
13 
14 struct C : A, B {};
15 
16 struct D : virtual C {
17   D();
18   ~D();
19   virtual void f();
20   void g();
21   int xxx;
22 };
23 
24 D::D() {}  // Forces vftable emission.
25 
26 // CHECK-LABEL: define linkonce_odr x86_thiscallcc void @"\01?f@D@@$4PPPPPPPM@A@AEXXZ"
27 // CHECK: %[[ECX:.*]] = load %struct.D*, %struct.D** %{{.*}}
28 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.D* %[[ECX]] to i8*
29 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -4
30 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
31 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
32 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
33 // CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
34 // CHECK: call x86_thiscallcc void @"\01?f@D@@UAEXXZ"(i8* %[[ADJUSTED_i8]])
35 // CHECK: ret void
36 
37 // CHECK-LABEL: define linkonce_odr x86_thiscallcc void @"\01?f@D@@$4PPPPPPPI@3AEXXZ"
38 // CHECK: %[[ECX:.*]] = load %struct.D*, %struct.D** %{{.*}}
39 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.D* %[[ECX]] to i8*
40 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -8
41 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
42 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
43 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
44 // CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
45 // CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[VTORDISP_ADJUSTED_i8]], i32 -4
46 // CHECK: call x86_thiscallcc void @"\01?f@D@@UAEXXZ"(i8* %[[ADJUSTED_i8]])
47 // CHECK: ret void
48 
49 struct E : virtual A {
50   virtual void f();
51   ~E();
52 };
53 
54 struct F {
55   virtual void z();
56 };
57 
58 struct G : virtual F, virtual E {
59   int ggg;
60   G();
61   ~G();
62 };
63 
64 G::G() {}  // Forces vftable emission.
65 
66 // CHECK-LABEL: define linkonce_odr x86_thiscallcc void @"\01?f@E@@$R4BA@M@PPPPPPPM@7AEXXZ"(i8*)
67 // CHECK: %[[ECX:.*]] = load %struct.E*, %struct.E** %{{.*}}
68 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.E* %[[ECX]] to i8*
69 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -4
70 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
71 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
72 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
73 // CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
74 // CHECK: %[[VBPTR_i8:.*]] = getelementptr inbounds i8, i8* %[[VTORDISP_ADJUSTED_i8]], i32 -16
75 // CHECK: %[[VBPTR:.*]] = bitcast i8* %[[VBPTR_i8]] to i32**
76 // CHECK: %[[VBTABLE:.*]] = load i32*, i32** %[[VBPTR]]
77 // CHECK: %[[VBOFFSET_PTR:.*]] = getelementptr inbounds i32, i32* %[[VBTABLE]], i32 3
78 // CHECK: %[[VBASE_OFFSET:.*]] = load i32, i32* %[[VBOFFSET_PTR]]
79 // CHECK: %[[VBASE:.*]] = getelementptr inbounds i8, i8* %[[VBPTR_i8]], i32 %[[VBASE_OFFSET]]
80 // CHECK: %[[ARG_i8:.*]] = getelementptr i8, i8* %[[VBASE]], i32 8
81 // CHECK: call x86_thiscallcc void @"\01?f@E@@UAEXXZ"(i8* %[[ARG_i8]])
82 // CHECK: ret void
83