1// RUN: %clang_cc1 -emit-llvm -fno-rtti %s -std=c++11 -o - -mconstructor-aliases -triple=i386-pc-win32 -fno-rtti > %t
2// RUN: FileCheck %s < %t
3// vftables are emitted very late, so do another pass to try to keep the checks
4// in source order.
5// RUN: FileCheck --check-prefix DTORS %s < %t
6// RUN: FileCheck --check-prefix DTORS2 %s < %t
7// RUN: FileCheck --check-prefix DTORS3 %s < %t
8// RUN: FileCheck --check-prefix DTORS4 %s < %t
9//
10// RUN: %clang_cc1 -emit-llvm %s -o - -mconstructor-aliases -triple=x86_64-pc-win32 -fno-rtti -std=c++11 | FileCheck --check-prefix DTORS-X64 %s
11
12namespace basic {
13
14class A {
15 public:
16  A() { }
17  ~A();
18};
19
20void no_constructor_destructor_infinite_recursion() {
21  A a;
22
23// CHECK:      define linkonce_odr x86_thiscallcc %"class.basic::A"* @"\01??0A@basic@@QAE@XZ"(%"class.basic::A"* returned %this) {{.*}} comdat {{.*}} {
24// CHECK:        [[THIS_ADDR:%[.0-9A-Z_a-z]+]] = alloca %"class.basic::A"*, align 4
25// CHECK-NEXT:   store %"class.basic::A"* %this, %"class.basic::A"** [[THIS_ADDR]], align 4
26// CHECK-NEXT:   [[T1:%[.0-9A-Z_a-z]+]] = load %"class.basic::A"*, %"class.basic::A"** [[THIS_ADDR]]
27// CHECK-NEXT:   ret %"class.basic::A"* [[T1]]
28// CHECK-NEXT: }
29}
30
31A::~A() {
32// Make sure that the destructor doesn't call itself:
33// CHECK: define {{.*}} @"\01??1A@basic@@QAE@XZ"
34// CHECK-NOT: call void @"\01??1A@basic@@QAE@XZ"
35// CHECK: ret
36}
37
38struct B {
39  B();
40};
41
42// Tests that we can define constructors outside the class (PR12784).
43B::B() {
44  // CHECK: define x86_thiscallcc %"struct.basic::B"* @"\01??0B@basic@@QAE@XZ"(%"struct.basic::B"* returned %this)
45  // CHECK: ret
46}
47
48struct C {
49  virtual ~C() {
50// DTORS:      define linkonce_odr x86_thiscallcc i8* @"\01??_GC@basic@@UAEPAXI@Z"(%"struct.basic::C"* %this, i32 %should_call_delete) {{.*}} comdat {{.*}} {
51// DTORS:        store i32 %should_call_delete, i32* %[[SHOULD_DELETE_VAR:[0-9a-z._]+]], align 4
52// DTORS:        store i8* %{{.*}}, i8** %[[RETVAL:[0-9a-z._]+]]
53// DTORS:        %[[SHOULD_DELETE_VALUE:[0-9a-z._]+]] = load i32, i32* %[[SHOULD_DELETE_VAR]]
54// DTORS:        call x86_thiscallcc void @"\01??1C@basic@@UAE@XZ"(%"struct.basic::C"* %[[THIS:[0-9a-z]+]])
55// DTORS-NEXT:   %[[CONDITION:[0-9]+]] = icmp eq i32 %[[SHOULD_DELETE_VALUE]], 0
56// DTORS-NEXT:   br i1 %[[CONDITION]], label %[[CONTINUE_LABEL:[0-9a-z._]+]], label %[[CALL_DELETE_LABEL:[0-9a-z._]+]]
57//
58// DTORS:      [[CALL_DELETE_LABEL]]
59// DTORS-NEXT:   %[[THIS_AS_VOID:[0-9a-z]+]] = bitcast %"struct.basic::C"* %[[THIS]] to i8*
60// DTORS-NEXT:   call void @"\01??3@YAXPAX@Z"(i8* %[[THIS_AS_VOID]])
61// DTORS-NEXT:   br label %[[CONTINUE_LABEL]]
62//
63// DTORS:      [[CONTINUE_LABEL]]
64// DTORS-NEXT:   %[[RET:.*]] = load i8*, i8** %[[RETVAL]]
65// DTORS-NEXT:   ret i8* %[[RET]]
66
67// Check that we do the mangling correctly on x64.
68// DTORS-X64:  @"\01??_GC@basic@@UEAAPEAXI@Z"
69  }
70  virtual void foo();
71};
72
73// Emits the vftable in the output.
74void C::foo() {}
75
76void check_vftable_offset() {
77  C c;
78// The vftable pointer should point at the beginning of the vftable.
79// CHECK: [[THIS_PTR:%[0-9]+]] = bitcast %"struct.basic::C"* {{.*}} to i32 (...)***
80// CHECK: store i32 (...)** bitcast ([2 x i8*]* @"\01??_7C@basic@@6B@" to i32 (...)**), i32 (...)*** [[THIS_PTR]]
81}
82
83void call_complete_dtor(C *obj_ptr) {
84// CHECK: define void @"\01?call_complete_dtor@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
85  obj_ptr->~C();
86// CHECK: %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
87// CHECK-NEXT: %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
88// CHECK-NEXT: %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
89// CHECK-NEXT: %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
90// CHECK-NEXT: %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
91// CHECK-NEXT: call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 0)
92// CHECK-NEXT: ret void
93}
94
95void call_deleting_dtor(C *obj_ptr) {
96// CHECK: define void @"\01?call_deleting_dtor@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
97  delete obj_ptr;
98// CHECK:      %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
99// CHECK:      br i1 {{.*}}, label %[[DELETE_NULL:.*]], label %[[DELETE_NOTNULL:.*]]
100
101// CHECK:      [[DELETE_NOTNULL]]
102// CHECK-NEXT:   %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
103// CHECK-NEXT:   %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
104// CHECK-NEXT:   %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
105// CHECK-NEXT:   %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
106// CHECK-NEXT:   call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 1)
107// CHECK:      ret void
108}
109
110void call_deleting_dtor_and_global_delete(C *obj_ptr) {
111// CHECK: define void @"\01?call_deleting_dtor_and_global_delete@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
112  ::delete obj_ptr;
113// CHECK:      %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
114// CHECK:      br i1 {{.*}}, label %[[DELETE_NULL:.*]], label %[[DELETE_NOTNULL:.*]]
115
116// CHECK:      [[DELETE_NOTNULL]]
117// CHECK-NEXT:   %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
118// CHECK-NEXT:   %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
119// CHECK-NEXT:   %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
120// CHECK-NEXT:   %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
121// CHECK-NEXT:   %[[CALL:.*]] = call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 0)
122// CHECK-NEXT:   call void @"\01??3@YAXPAX@Z"(i8* %[[CALL]])
123// CHECK:      ret void
124}
125
126struct D {
127  static int foo();
128
129  D() {
130    static int ctor_static = foo();
131    // CHECK that the static in the ctor gets mangled correctly:
132    // CHECK: @"\01?ctor_static@?1???0D@basic@@QAE@XZ@4HA"
133  }
134  ~D() {
135    static int dtor_static = foo();
136    // CHECK that the static in the dtor gets mangled correctly:
137    // CHECK: @"\01?dtor_static@?1???1D@basic@@QAE@XZ@4HA"
138  }
139};
140
141void use_D() { D c; }
142
143} // end namespace basic
144
145namespace dtor_in_second_nvbase {
146
147struct A {
148  virtual void f();  // A needs vftable to be primary.
149};
150struct B {
151  virtual ~B();
152};
153struct C : A, B {
154  virtual ~C();
155};
156
157C::~C() {
158// CHECK-LABEL: define x86_thiscallcc void @"\01??1C@dtor_in_second_nvbase@@UAE@XZ"
159// CHECK:       (%"struct.dtor_in_second_nvbase::C"* %this)
160//      No this adjustment!
161// CHECK-NOT: getelementptr
162// CHECK:   load %"struct.dtor_in_second_nvbase::C"*, %"struct.dtor_in_second_nvbase::C"** %{{.*}}
163//      Now we this-adjust before calling ~B.
164// CHECK:   bitcast %"struct.dtor_in_second_nvbase::C"* %{{.*}} to i8*
165// CHECK:   getelementptr inbounds i8, i8* %{{.*}}, i32 4
166// CHECK:   bitcast i8* %{{.*}} to %"struct.dtor_in_second_nvbase::B"*
167// CHECK:   call x86_thiscallcc void @"\01??1B@dtor_in_second_nvbase@@UAE@XZ"
168// CHECK:       (%"struct.dtor_in_second_nvbase::B"* %{{.*}})
169// CHECK:   ret void
170}
171
172void foo() {
173  C c;
174}
175// DTORS2-LABEL: define linkonce_odr x86_thiscallcc i8* @"\01??_EC@dtor_in_second_nvbase@@W3AEPAXI@Z"
176// DTORS2:       (%"struct.dtor_in_second_nvbase::C"* %this, i32 %should_call_delete)
177//      Do an adjustment from B* to C*.
178// DTORS2:   getelementptr i8, i8* %{{.*}}, i32 -4
179// DTORS2:   bitcast i8* %{{.*}} to %"struct.dtor_in_second_nvbase::C"*
180// DTORS2:   %[[CALL:.*]] = tail call x86_thiscallcc i8* @"\01??_GC@dtor_in_second_nvbase@@UAEPAXI@Z"
181// DTORS2:   ret i8* %[[CALL]]
182
183}
184
185namespace test2 {
186// Just like dtor_in_second_nvbase, except put that in a vbase of a diamond.
187
188// C's dtor is in the non-primary base.
189struct A { virtual void f(); };
190struct B { virtual ~B(); };
191struct C : A, B { virtual ~C(); int c; };
192
193// Diamond hierarchy, with C as the shared vbase.
194struct D : virtual C { int d; };
195struct E : virtual C { int e; };
196struct F : D, E { ~F(); int f; };
197
198F::~F() {
199// CHECK-LABEL: define x86_thiscallcc void @"\01??1F@test2@@UAE@XZ"(%"struct.test2::F"*)
200//      Do an adjustment from C vbase subobject to F as though F was the
201//      complete type.
202// CHECK:   getelementptr inbounds i8, i8* %{{.*}}, i32 -20
203// CHECK:   bitcast i8* %{{.*}} to %"struct.test2::F"*
204// CHECK:   store %"struct.test2::F"*
205}
206
207void foo() {
208  F f;
209}
210// DTORS3-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_DF@test2@@UAE@XZ"({{.*}} {{.*}} comdat
211//      Do an adjustment from C* to F*.
212// DTORS3:   getelementptr i8, i8* %{{.*}}, i32 20
213// DTORS3:   bitcast i8* %{{.*}} to %"struct.test2::F"*
214// DTORS3:   call x86_thiscallcc void @"\01??1F@test2@@UAE@XZ"
215// DTORS3:   ret void
216
217}
218
219namespace constructors {
220
221struct A {
222  A() {}
223};
224
225struct B : A {
226  B();
227  ~B();
228};
229
230B::B() {
231  // CHECK: define x86_thiscallcc %"struct.constructors::B"* @"\01??0B@constructors@@QAE@XZ"(%"struct.constructors::B"* returned %this)
232  // CHECK: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
233  // CHECK: ret
234}
235
236struct C : virtual A {
237  C();
238};
239
240C::C() {
241  // CHECK: define x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* returned %this, i32 %is_most_derived)
242  // TODO: make sure this works in the Release build too;
243  // CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
244  // CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
245  // CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
246  // CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
247  //
248  // CHECK: [[INIT_VBASES]]
249  // CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::C"* %{{.*}} to i8*
250  // CHECK-NEXT: %[[vbptr_off:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
251  // CHECK-NEXT: %[[vbptr:.*]] = bitcast i8* %[[vbptr_off]] to i32**
252  // CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8C@constructors@@7B@", i32 0, i32 0), i32** %[[vbptr]]
253  // CHECK-NEXT: bitcast %"struct.constructors::C"* %{{.*}} to i8*
254  // CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
255  // CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
256  // CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
257  // CHECK-NEXT: br label %[[SKIP_VBASES]]
258  //
259  // CHECK: [[SKIP_VBASES]]
260  // Class C does not define or override methods, so shouldn't change the vfptr.
261  // CHECK-NOT: @"\01??_7C@constructors@@6B@"
262  // CHECK: ret
263}
264
265void create_C() {
266  C c;
267  // CHECK: define void @"\01?create_C@constructors@@YAXXZ"()
268  // CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %c, i32 1)
269  // CHECK: ret
270}
271
272struct D : C {
273  D();
274};
275
276D::D() {
277  // CHECK: define x86_thiscallcc %"struct.constructors::D"* @"\01??0D@constructors@@QAE@XZ"(%"struct.constructors::D"* returned %this, i32 %is_most_derived) unnamed_addr
278  // CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
279  // CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
280  // CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
281  // CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
282  //
283  // CHECK: [[INIT_VBASES]]
284  // CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::D"* %{{.*}} to i8*
285  // CHECK-NEXT: %[[vbptr_off:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
286  // CHECK-NEXT: %[[vbptr:.*]] = bitcast i8* %[[vbptr_off]] to i32**
287  // CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8D@constructors@@7B@", i32 0, i32 0), i32** %[[vbptr]]
288  // CHECK-NEXT: bitcast %"struct.constructors::D"* %{{.*}} to i8*
289  // CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
290  // CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
291  // CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
292  // CHECK-NEXT: br label %[[SKIP_VBASES]]
293  //
294  // CHECK: [[SKIP_VBASES]]
295  // CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %{{.*}}, i32 0)
296  // CHECK: ret
297}
298
299struct E : virtual C {
300  E();
301};
302
303E::E() {
304  // CHECK: define x86_thiscallcc %"struct.constructors::E"* @"\01??0E@constructors@@QAE@XZ"(%"struct.constructors::E"* returned %this, i32 %is_most_derived) unnamed_addr
305  // CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
306  // CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
307  // CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
308  // CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
309  //
310  // CHECK: [[INIT_VBASES]]
311  // CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::E"* %{{.*}} to i8*
312  // CHECK-NEXT: %[[offs:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
313  // CHECK-NEXT: %[[vbptr_E:.*]] = bitcast i8* %[[offs]] to i32**
314  // CHECK-NEXT: store i32* getelementptr inbounds ([3 x i32], [3 x i32]* @"\01??_8E@constructors@@7B01@@", i32 0, i32 0), i32** %[[vbptr_E]]
315  // CHECK-NEXT: %[[offs:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 4
316  // CHECK-NEXT: %[[vbptr_C:.*]] = bitcast i8* %[[offs]] to i32**
317  // CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8E@constructors@@7BC@1@@", i32 0, i32 0), i32** %[[vbptr_C]]
318  // CHECK-NEXT: bitcast %"struct.constructors::E"* %{{.*}} to i8*
319  // CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
320  // CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
321  // CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
322  // CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %{{.*}}, i32 0)
323  // CHECK-NEXT: br label %[[SKIP_VBASES]]
324  //
325  // CHECK: [[SKIP_VBASES]]
326  // CHECK: ret
327}
328
329// PR16735 - even abstract classes should have a constructor emitted.
330struct F {
331  F();
332  virtual void f() = 0;
333};
334
335F::F() {}
336// CHECK: define x86_thiscallcc %"struct.constructors::F"* @"\01??0F@constructors@@QAE@XZ"
337
338} // end namespace constructors
339
340namespace dtors {
341
342struct A {
343  ~A();
344};
345
346void call_nv_complete(A *a) {
347  a->~A();
348// CHECK: define void @"\01?call_nv_complete@dtors@@YAXPAUA@1@@Z"
349// CHECK: call x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
350// CHECK: ret
351}
352
353// CHECK: declare x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
354
355// Now try some virtual bases, where we need the complete dtor.
356
357struct B : virtual A { ~B(); };
358struct C : virtual A { ~C(); };
359struct D : B, C { ~D(); };
360
361void call_vbase_complete(D *d) {
362  d->~D();
363// CHECK: define void @"\01?call_vbase_complete@dtors@@YAXPAUD@1@@Z"
364// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
365// CHECK: ret
366}
367
368// The complete dtor should call the base dtors for D and the vbase A (once).
369// CHECK: define linkonce_odr x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"({{.*}}) {{.*}} comdat
370// CHECK-NOT: call
371// CHECK: call x86_thiscallcc void @"\01??1D@dtors@@QAE@XZ"
372// CHECK-NOT: call
373// CHECK: call x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
374// CHECK-NOT: call
375// CHECK: ret
376
377void destroy_d_complete() {
378  D d;
379// CHECK: define void @"\01?destroy_d_complete@dtors@@YAXXZ"
380// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
381// CHECK: ret
382}
383
384// FIXME: Clang manually inlines the deletion, so we don't get a call to the
385// deleting dtor (_G).  The only way to call deleting dtors currently is through
386// a vftable.
387void call_nv_deleting_dtor(D *d) {
388  delete d;
389// CHECK: define void @"\01?call_nv_deleting_dtor@dtors@@YAXPAUD@1@@Z"
390// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
391// CHECK: call void @"\01??3@YAXPAX@Z"
392// CHECK: ret
393}
394
395}
396
397namespace test1 {
398struct A { };
399struct B : virtual A {
400  B(int *a);
401  B(const char *a, ...);
402  __cdecl B(short *a);
403};
404B::B(int *a) {}
405B::B(const char *a, ...) {}
406B::B(short *a) {}
407// CHECK: define x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAH@Z"
408// CHECK:               (%"struct.test1::B"* returned %this, i32* %a, i32 %is_most_derived)
409// CHECK: define %"struct.test1::B"* @"\01??0B@test1@@QAA@PBDZZ"
410// CHECK:               (%"struct.test1::B"* returned %this, i32 %is_most_derived, i8* %a, ...)
411// CHECK: define x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAF@Z"
412// CHECK:               (%"struct.test1::B"* returned %this, i16* %a, i32 %is_most_derived)
413
414void construct_b() {
415  int a;
416  B b1(&a);
417  B b2("%d %d", 1, 2);
418}
419// CHECK-LABEL: define void @"\01?construct_b@test1@@YAXXZ"()
420// CHECK: call x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAH@Z"
421// CHECK:               (%"struct.test1::B"* {{.*}}, i32* {{.*}}, i32 1)
422// CHECK: call %"struct.test1::B"* (%"struct.test1::B"*, i32, i8*, ...) @"\01??0B@test1@@QAA@PBDZZ"
423// CHECK:               (%"struct.test1::B"* {{.*}}, i32 1, i8* {{.*}}, i32 1, i32 2)
424}
425
426namespace implicit_copy_vtable {
427// This was a crash that only reproduced in ABIs without key functions.
428struct ImplicitCopy {
429  // implicit copy ctor
430  virtual ~ImplicitCopy();
431};
432void CreateCopy(ImplicitCopy *a) {
433  new ImplicitCopy(*a);
434}
435// CHECK: store {{.*}} @"\01??_7ImplicitCopy@implicit_copy_vtable@@6B@"
436
437struct MoveOnly {
438  MoveOnly(MoveOnly &&o) = default;
439  virtual ~MoveOnly();
440};
441MoveOnly &&f();
442void g() { new MoveOnly(f()); }
443// CHECK: store {{.*}} @"\01??_7MoveOnly@implicit_copy_vtable@@6B@"
444}
445
446namespace delegating_ctor {
447struct Y {};
448struct X : virtual Y {
449  X(int);
450  X();
451};
452X::X(int) : X() {}
453}
454// CHECK: define x86_thiscallcc %"struct.delegating_ctor::X"* @"\01??0X@delegating_ctor@@QAE@H@Z"(
455// CHECK:  %[[is_most_derived_addr:.*]] = alloca i32, align 4
456// CHECK:  store i32 %is_most_derived, i32* %[[is_most_derived_addr]]
457// CHECK:  %[[is_most_derived:.*]] = load i32, i32* %[[is_most_derived_addr]]
458// CHECK:  call x86_thiscallcc {{.*}}* @"\01??0X@delegating_ctor@@QAE@XZ"({{.*}} i32 %[[is_most_derived]])
459
460// Dtor thunks for classes in anonymous namespaces should be internal, not
461// linkonce_odr.
462namespace {
463struct A {
464  virtual ~A() { }
465};
466}
467void *getA() {
468  return (void*)new A();
469}
470// CHECK: define internal x86_thiscallcc i8* @"\01??_GA@?A@@UAEPAXI@Z"
471// CHECK:               (%"struct.(anonymous namespace)::A"* %this, i32 %should_call_delete)
472// CHECK: define internal x86_thiscallcc void @"\01??1A@?A@@UAE@XZ"
473// CHECK:               (%"struct.(anonymous namespace)::A"* %this)
474
475// Check that we correctly transform __stdcall to __thiscall for ctors and
476// dtors.
477class G {
478 public:
479  __stdcall G() {};
480// DTORS4: define linkonce_odr x86_thiscallcc %class.G* @"\01??0G@@QAE@XZ"
481  __stdcall ~G() {};
482// DTORS4: define linkonce_odr x86_thiscallcc void @"\01??1G@@QAE@XZ"
483};
484
485extern void testG() {
486  G g;
487}
488