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
D()24 D::D() {} // Forces vftable emission.
25
26 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@D@@$4PPPPPPPM@A@AEXXZ"
27 // Note that the vtordisp is applied before really adjusting to D*.
28 // CHECK: %[[COERCE_LOAD:.*]] = load %struct.D*, %struct.D** %{{.*}}
29 // CHECK: %[[ECX:.*]] = load %struct.D*, %struct.D** %{{.*}}
30 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.D* %[[ECX]] to i8*
31 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -4
32 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
33 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
34 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
35 // CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
36 // CHECK: call x86_thiscallcc void @"?f@D@@UAEXXZ"(i8* %[[ADJUSTED_i8]])
37 // CHECK: ret void
38
39 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@D@@$4PPPPPPPI@3AEXXZ"
40 // CHECK: %[[COERCE_LOAD:.*]] = load %struct.D*, %struct.D** %{{.*}}
41 // CHECK: %[[ECX:.*]] = load %struct.D*, %struct.D** %{{.*}}
42 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.D* %[[ECX]] to i8*
43 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -8
44 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
45 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
46 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
47 // CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
48 // CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[VTORDISP_ADJUSTED_i8]], i32 -4
49 // CHECK: call x86_thiscallcc void @"?f@D@@UAEXXZ"(i8* %[[ADJUSTED_i8]])
50 // CHECK: ret void
51
52 struct E : virtual A {
53 virtual void f();
54 ~E();
55 };
56
57 struct F {
58 virtual void z();
59 };
60
61 struct G : virtual F, virtual E {
62 int ggg;
63 G();
64 ~G();
65 };
66
G()67 G::G() {} // Forces vftable emission.
68
69 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@E@@$R4BA@M@PPPPPPPM@7AEXXZ"(i8*
70 // CHECK: %[[COERCE_LOAD:.*]] = load %struct.E*, %struct.E** %{{.*}}
71 // CHECK: %[[ECX:.*]] = load %struct.E*, %struct.E** %{{.*}}
72 // CHECK: %[[ECX_i8:.*]] = bitcast %struct.E* %[[ECX]] to i8*
73 // CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, i8* %[[ECX_i8]], i32 -4
74 // CHECK: %[[VTORDISP_PTR:.*]] = bitcast i8* %[[VTORDISP_PTR_i8]] to i32*
75 // CHECK: %[[VTORDISP:.*]] = load i32, i32* %[[VTORDISP_PTR]]
76 // CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
77 // CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, i8* %[[ECX_i8]], i32 %[[VTORDISP_NEG]]
78 // CHECK: %[[VBPTR_i8:.*]] = getelementptr inbounds i8, i8* %[[VTORDISP_ADJUSTED_i8]], i32 -16
79 // CHECK: %[[VBPTR:.*]] = bitcast i8* %[[VBPTR_i8]] to i32**
80 // CHECK: %[[VBTABLE:.*]] = load i32*, i32** %[[VBPTR]]
81 // CHECK: %[[VBOFFSET_PTR:.*]] = getelementptr inbounds i32, i32* %[[VBTABLE]], i32 3
82 // CHECK: %[[VBASE_OFFSET:.*]] = load i32, i32* %[[VBOFFSET_PTR]]
83 // CHECK: %[[VBASE:.*]] = getelementptr inbounds i8, i8* %[[VBPTR_i8]], i32 %[[VBASE_OFFSET]]
84 // CHECK: %[[ARG_i8:.*]] = getelementptr i8, i8* %[[VBASE]], i32 8
85 // CHECK: call x86_thiscallcc void @"?f@E@@UAEXXZ"(i8* %[[ARG_i8]])
86 // CHECK: ret void
87