1 // RUN: %clang_cc1 -no-opaque-pointers -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts %s 2>/dev/null \
2 // RUN: | FileCheck %s --strict-whitespace
3
4 #pragma pack(push, 8)
5
6 class B {
7 public:
b()8 virtual void b(){}
9 int b_field;
10 protected:
11 private:
12 };
13
14 class A : public B {
15 public:
16 int a_field;
a()17 virtual void a(){}
18 char one;
19 protected:
20 private:
21 };
22
23 class D {
24 public:
b()25 virtual void b(){}
26 double a;
27 };
28
29 class C : public virtual A,
30 public D, public B {
31 public:
32 double c1_field;
33 int c2_field;
34 double c3_field;
35 int c4_field;
foo()36 virtual void foo(){}
bar()37 virtual void bar(){}
38 protected:
39 private:
40 };
41
42 struct BaseStruct
43 {
BaseStructBaseStruct44 BaseStruct(){}
45 double v0;
46 float v1;
47 C fg;
48 };
49
50 struct DerivedStruct : public BaseStruct {
51 int x;
52 };
53
54 struct G
55 {
56 int g_field;
57 };
58
59 struct H : public G,
60 public virtual D
61 {
62 };
63
64 struct I : public virtual D
65 {
~II66 virtual ~I(){}
67 double q;
68 };
69
70 struct K
71 {
72 int k;
73 };
74
75 struct L
76 {
77 int l;
78 };
79
80 struct M : public virtual K
81 {
82 int m;
83 };
84
85 struct N : public L, public M
86 {
fN87 virtual void f(){}
88 };
89
90 struct O : public H, public G {
foO91 virtual void fo(){}
92 };
93
94 struct P : public M, public virtual L {
95 int p;
96 };
97
98 struct R {};
99
100 class IA {
101 public:
~IA()102 virtual ~IA(){}
103 virtual void ia() = 0;
104 };
105
106 class ICh : public virtual IA {
107 public:
~ICh()108 virtual ~ICh(){}
ia()109 virtual void ia(){}
iCh()110 virtual void iCh(){}
111 };
112
113 struct f {
asdf114 virtual int asd() {return -90;}
115 };
116
117 struct s : public virtual f {
~ss118 virtual ~s(){}
119 int r;
asds120 virtual int asd() {return -9;}
121 };
122
123 struct sd : virtual s, virtual ICh {
~sdsd124 virtual ~sd(){}
125 int q;
126 char y;
asdsd127 virtual int asd() {return -1;}
128 };
129 struct AV {
130 virtual void foo();
131 };
132 struct BV : AV {
133 };
134 struct CV : virtual BV {
135 CV();
136 virtual void foo();
137 };
138 struct DV : BV {
139 };
140 struct EV : CV, DV {
141 };
142 #pragma pack(pop)
143
144 // This needs only for building layouts.
145 // Without this clang doesn`t dump record layouts.
main()146 int main() {
147 // This avoid "Can't yet mangle constructors!" for MS ABI.
148 C* c;
149 c->foo();
150 DerivedStruct* v;
151 H* g;
152 BaseStruct* u;
153 I* i;
154 N* n;
155 O* o;
156 P* p;
157 R* r;
158 sd *h;
159 EV *j;
160 return 0;
161 }
162
163 // CHECK-LABEL: 0 | class B{{$}}
164 // CHECK-NEXT: 0 | (B vftable pointer)
165 // CHECK-NEXT: 4 | int b_field
166
167 // CHECK-NEXT: sizeof=8, align=4
168 // CHECK-NEXT: nvsize=8, nvalign=4
169
170 // CHECK-LABEL: 0 | class A{{$}}
171 // CHECK-NEXT: 0 | class B (primary base)
172 // CHECK-NEXT: 0 | (B vftable pointer)
173 // CHECK-NEXT: 4 | int b_field
174 // CHECK-NEXT: 8 | int a_field
175 // CHECK-NEXT: 12 | char one
176
177 // CHECK-NEXT: sizeof=16, align=4
178 // CHECK-NEXT: nvsize=16, nvalign=4
179
180 // CHECK-LABEL: 0 | class D{{$}}
181 // CHECK-NEXT: 0 | (D vftable pointer)
182 // CHECK-NEXT: 8 | double a
183
184 // CHECK-NEXT: sizeof=16, align=8
185 // CHECK-NEXT: nvsize=16, nvalign=8
186
187 // CHECK-LABEL: 0 | class C{{$}}
188 // CHECK-NEXT: 0 | class D (primary base)
189 // CHECK-NEXT: 0 | (D vftable pointer)
190 // CHECK-NEXT: 8 | double a
191 // CHECK-NEXT: 16 | class B (base)
192 // CHECK-NEXT: 16 | (B vftable pointer)
193 // CHECK-NEXT: 20 | int b_field
194 // CHECK-NEXT: 24 | (C vbtable pointer)
195 // CHECK-NEXT: 32 | double c1_field
196 // CHECK-NEXT: 40 | int c2_field
197 // CHECK-NEXT: 48 | double c3_field
198 // CHECK-NEXT: 56 | int c4_field
199 // CHECK-NEXT: 64 | class A (virtual base)
200 // CHECK-NEXT: 64 | class B (primary base)
201 // CHECK-NEXT: 64 | (B vftable pointer)
202 // CHECK-NEXT: 68 | int b_field
203 // CHECK-NEXT: 72 | int a_field
204 // CHECK-NEXT: 76 | char one
205
206 // CHECK-NEXT: sizeof=80, align=8
207 // CHECK-NEXT: nvsize=64, nvalign=8
208
209 // CHECK: %class.D = type { i32 (...)**, double }
210
211 // CHECK: %class.B = type { i32 (...)**, i32 }
212
213 // CHECK: %class.A = type { %class.B, i32, i8 }
214
215 // CHECK: %class.C = type { %class.D, %class.B, i32*, double, i32, double, i32, [4 x i8], %class.A }
216 // CHECK: %class.C.base = type { %class.D, %class.B, i32*, double, i32, double, i32 }
217
218 // CHECK-LABEL: 0 | struct BaseStruct{{$}}
219 // CHECK-NEXT: 0 | double v0
220 // CHECK-NEXT: 8 | float v1
221 // CHECK-NEXT: 16 | class C fg
222 // CHECK-NEXT: 16 | class D (primary base)
223 // CHECK-NEXT: 16 | (D vftable pointer)
224 // CHECK-NEXT: 24 | double a
225 // CHECK-NEXT: 32 | class B (base)
226 // CHECK-NEXT: 32 | (B vftable pointer)
227 // CHECK-NEXT: 36 | int b_field
228 // CHECK-NEXT: 40 | (C vbtable pointer)
229 // CHECK-NEXT: 48 | double c1_field
230 // CHECK-NEXT: 56 | int c2_field
231 // CHECK-NEXT: 64 | double c3_field
232 // CHECK-NEXT: 72 | int c4_field
233 // CHECK-NEXT: 80 | class A (virtual base)
234 // CHECK-NEXT: 80 | class B (primary base)
235 // CHECK-NEXT: 80 | (B vftable pointer)
236 // CHECK-NEXT: 84 | int b_field
237 // CHECK-NEXT: 88 | int a_field
238 // CHECK-NEXT: 92 | char one
239 // CHECK-NEXT: sizeof=96, align=8
240 // CHECK-NEXT: nvsize=96, nvalign=8
241
242 // CHECK: %struct.BaseStruct = type { double, float, %class.C }
243
244 // CHECK-LABEL: 0 | struct DerivedStruct{{$}}
245 // CHECK-NEXT: 0 | struct BaseStruct (base)
246 // CHECK-NEXT: 0 | double v0
247 // CHECK-NEXT: 8 | float v1
248 // CHECK-NEXT: 16 | class C fg
249 // CHECK-NEXT: 16 | class D (primary base)
250 // CHECK-NEXT: 16 | (D vftable pointer)
251 // CHECK-NEXT: 24 | double a
252 // CHECK-NEXT: 32 | class B (base)
253 // CHECK-NEXT: 32 | (B vftable pointer)
254 // CHECK-NEXT: 36 | int b_field
255 // CHECK-NEXT: 40 | (C vbtable pointer)
256 // CHECK-NEXT: 48 | double c1_field
257 // CHECK-NEXT: 56 | int c2_field
258 // CHECK-NEXT: 64 | double c3_field
259 // CHECK-NEXT: 72 | int c4_field
260 // CHECK-NEXT: 80 | class A (virtual base)
261 // CHECK-NEXT: 80 | class B (primary base)
262 // CHECK-NEXT: 80 | (B vftable pointer)
263 // CHECK-NEXT: 84 | int b_field
264 // CHECK-NEXT: 88 | int a_field
265 // CHECK-NEXT: 92 | char one
266 // CHECK-NEXT: 96 | int x
267 // CHECK-NEXT: sizeof=104, align=8
268 // CHECK-NEXT: nvsize=104, nvalign=8
269
270 // CHECK: %struct.DerivedStruct = type { %struct.BaseStruct, i32 }
271
272 // CHECK-LABEL:0 | struct G
273 // CHECK-NEXT: 0 | int g_field
274 // CHECK-NEXT: sizeof=4, align=4
275 // CHECK-NEXT: nvsize=4, nvalign=4
276
277 // CHECK-LABEL: 0 | struct H{{$}}
278 // CHECK-NEXT: 0 | struct G (base)
279 // CHECK-NEXT: 0 | int g_field
280 // CHECK-NEXT: 4 | (H vbtable pointer)
281 // CHECK-NEXT: 8 | class D (virtual base)
282 // CHECK-NEXT: 8 | (D vftable pointer)
283 // CHECK-NEXT: 16 | double a
284 // CHECK-NEXT: sizeof=24, align=8
285 // CHECK-NEXT: nvsize=8, nvalign=8
286
287 // CHECK: %struct.H = type { %struct.G, i32*, %class.D }
288
289 // CHECK-LABEL: 0 | struct I{{$}}
290 // CHECK-NEXT: 0 | (I vftable pointer)
291 // CHECK-NEXT: 8 | (I vbtable pointer)
292 // CHECK-NEXT: 16 | double q
293 // CHECK-NEXT: 24 | class D (virtual base)
294 // CHECK-NEXT: 24 | (D vftable pointer)
295 // CHECK-NEXT: 32 | double a
296 // CHECK-NEXT: sizeof=40, align=8
297 // CHECK-NEXT: nvsize=24, nvalign=8
298
299 // CHECK: %struct.I = type { i32 (...)**, [4 x i8], i32*, double, %class.D }
300 // CHECK: %struct.I.base = type { i32 (...)**, [4 x i8], i32*, double }
301
302 // CHECK-LABEL: 0 | struct L{{$}}
303 // CHECK-NEXT: 0 | int l
304 // CHECK-NEXT: sizeof=4, align=4
305 // CHECK-NEXT: nvsize=4, nvalign=4
306
307 // CHECK-LABEL: 0 | struct K{{$}}
308 // CHECK-NEXT: 0 | int k
309 // CHECK-NEXT: sizeof=4, align=4
310 // CHECK-NEXT: nvsize=4, nvalign=4
311
312 // CHECK-LABEL: 0 | struct M{{$}}
313 // CHECK-NEXT: 0 | (M vbtable pointer)
314 // CHECK-NEXT: 4 | int m
315 // CHECK-NEXT: 8 | struct K (virtual base)
316 // CHECK-NEXT: 8 | int k
317 // CHECK-NEXT: sizeof=12, align=4
318
319 //CHECK: %struct.M = type { i32*, i32, %struct.K }
320 //CHECK: %struct.M.base = type { i32*, i32 }
321
322 // CHECK-LABEL: 0 | struct N{{$}}
323 // CHECK-NEXT: 0 | (N vftable pointer)
324 // CHECK-NEXT: 4 | struct L (base)
325 // CHECK-NEXT: 4 | int l
326 // CHECK-NEXT: 8 | struct M (base)
327 // CHECK-NEXT: 8 | (M vbtable pointer)
328 // CHECK-NEXT: 12 | int m
329 // CHECK-NEXT: 16 | struct K (virtual base)
330 // CHECK-NEXT: 16 | int k
331 // CHECK-NEXT: sizeof=20, align=4
332 // CHECK-NEXT: nvsize=16, nvalign=4
333
334 //CHECK: %struct.N = type { i32 (...)**, %struct.L, %struct.M.base, %struct.K }
335
336 // CHECK-LABEL: 0 | struct O{{$}}
337 // CHECK-NEXT: 0 | (O vftable pointer)
338 // CHECK-NEXT: 8 | struct H (base)
339 // CHECK-NEXT: 8 | struct G (base)
340 // CHECK-NEXT: 8 | int g_field
341 // CHECK-NEXT: 12 | (H vbtable pointer)
342 // CHECK-NEXT: 16 | struct G (base)
343 // CHECK-NEXT: 16 | int g_field
344 // CHECK-NEXT: 24 | class D (virtual base)
345 // CHECK-NEXT: 24 | (D vftable pointer)
346 // CHECK-NEXT: 32 | double a
347 // CHECK-NEXT: | [sizeof=40, align=8
348 // CHECK-NEXT: | nvsize=24, nvalign=8]
349
350 // CHECK: struct.O = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, %class.D }
351 // CHECK: struct.O.base = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, [4 x i8] }
352
353 // CHECK-LABEL: 0 | struct P{{$}}
354 // CHECK-NEXT: 0 | struct M (base)
355 // CHECK-NEXT: 0 | (M vbtable pointer)
356 // CHECK-NEXT: 4 | int m
357 // CHECK-NEXT: 8 | int p
358 // CHECK-NEXT: 12 | struct K (virtual base)
359 // CHECK-NEXT: 12 | int k
360 // CHECK-NEXT: 16 | struct L (virtual base)
361 // CHECK-NEXT: 16 | int l
362 // CHECK-NEXT: sizeof=20, align=4
363 // CHECK-NEXT: nvsize=12, nvalign=4
364
365 //CHECK: %struct.P = type { %struct.M.base, i32, %struct.K, %struct.L }
366
367 // CHECK-LABEL: 0 | struct R (empty){{$}}
368 // CHECK-NEXT: sizeof=1, align=1
369 // CHECK-NEXT: nvsize=0, nvalign=1
370
371 //CHECK: %struct.R = type { i8 }
372
373 // CHECK-LABEL: 0 | struct f{{$}}
374 // CHECK-NEXT: 0 | (f vftable pointer)
375 // CHECK-NEXT: sizeof=4, align=4
376 // CHECK-NEXT: nvsize=4, nvalign=4
377
378 // CHECK-LABEL: 0 | struct s{{$}}
379 // CHECK-NEXT: 0 | (s vftable pointer)
380 // CHECK-NEXT: 4 | (s vbtable pointer)
381 // CHECK-NEXT: 8 | int r
382 // CHECK-NEXT: 12 | (vtordisp for vbase f)
383 // CHECK-NEXT: 16 | struct f (virtual base)
384 // CHECK-NEXT: 16 | (f vftable pointer)
385 // CHECK-NEXT: sizeof=20, align=4
386 // CHECK-NEXT: nvsize=12, nvalign=4
387
388 // CHECK-LABEL: 0 | class IA{{$}}
389 // CHECK-NEXT: 0 | (IA vftable pointer)
390 // CHECK-NEXT: sizeof=4, align=4
391 // CHECK-NEXT: nvsize=4, nvalign=4
392
393 // CHECK-LABEL: 0 | class ICh{{$}}
394 // CHECK-NEXT: 0 | (ICh vftable pointer)
395 // CHECK-NEXT: 4 | (ICh vbtable pointer)
396 // CHECK-NEXT: 8 | (vtordisp for vbase IA)
397 // CHECK-NEXT: 12 | class IA (virtual base)
398 // CHECK-NEXT: 12 | (IA vftable pointer)
399 // CHECK-NEXT: sizeof=16, align=4
400 // CHECK-NEXT: nvsize=8, nvalign=4
401
402 // CHECK-LABEL: 0 | struct sd{{$}}
403 // CHECK-NEXT: 0 | (sd vbtable pointer)
404 // CHECK-NEXT: 4 | int q
405 // CHECK-NEXT: 8 | char y
406 // CHECK-NEXT: 12 | (vtordisp for vbase f)
407 // CHECK-NEXT: 16 | struct f (virtual base)
408 // CHECK-NEXT: 16 | (f vftable pointer)
409 // CHECK-NEXT: 20 | struct s (virtual base)
410 // CHECK-NEXT: 20 | (s vftable pointer)
411 // CHECK-NEXT: 24 | (s vbtable pointer)
412 // CHECK-NEXT: 28 | int r
413 // CHECK-NEXT: 32 | (vtordisp for vbase IA)
414 // CHECK-NEXT: 36 | class IA (virtual base)
415 // CHECK-NEXT: 36 | (IA vftable pointer)
416 // CHECK-NEXT: 40 | class ICh (virtual base)
417 // CHECK-NEXT: 40 | (ICh vftable pointer)
418 // CHECK-NEXT: 44 | (ICh vbtable pointer)
419 // CHECK-NEXT: sizeof=48, align=4
420 // CHECK-NEXT: nvsize=12, nvalign=4
421
422 // CHECK: %struct.f = type { i32 (...)** }
423 // CHECK: %struct.s = type { i32 (...)**, i32*, i32, i32, %struct.f }
424 // CHECK: %class.IA = type { i32 (...)** }
425 // CHECK: %class.ICh = type { i32 (...)**, i32*, i32, %class.IA }
426 // CHECK: %struct.sd = type { i32*, i32, i8, i32, %struct.f, %struct.s.base, i32, %class.IA, %class.ICh.base }
427
428 // CHECK-LABEL: 0 | struct AV{{$}}
429 // CHECK-NEXT: 0 | (AV vftable pointer)
430 // CHECK-NEXT: sizeof=4, align=4
431 // CHECK-NEXT: nvsize=4, nvalign=4
432
433 // CHECK-LABEL: 0 | struct BV{{$}}
434 // CHECK-NEXT: 0 | struct AV (primary base)
435 // CHECK-NEXT: 0 | (AV vftable pointer)
436 // CHECK-NEXT: sizeof=4, align=4
437 // CHECK-NEXT: nvsize=4, nvalign=4
438
439 // CHECK-LABEL: 0 | struct CV{{$}}
440 // CHECK-NEXT: 0 | (CV vbtable pointer)
441 // CHECK-NEXT: 4 | (vtordisp for vbase BV)
442 // CHECK-NEXT: 8 | struct BV (virtual base)
443 // CHECK-NEXT: 8 | struct AV (primary base)
444 // CHECK-NEXT: 8 | (AV vftable pointer)
445 // CHECK-NEXT: sizeof=12, align=4
446 // CHECK-NEXT: nvsize=4, nvalign=4
447
448 // CHECK: %struct.AV = type { i32 (...)** }
449 // CHECK: %struct.BV = type { %struct.AV }
450 // CHECK: %struct.CV = type { i32*, i32, %struct.BV }
451 // CHECK: %struct.CV.base = type { i32* }
452
453 // CHECK-LABEL: 0 | struct DV{{$}}
454 // CHECK-NEXT: 0 | struct BV (primary base)
455 // CHECK-NEXT: 0 | struct AV (primary base)
456 // CHECK-NEXT: 0 | (AV vftable pointer)
457 // CHECK-NEXT: sizeof=4, align=4
458 // CHECK-NEXT: nvsize=4, nvalign=4
459
460 // CHECK: %struct.DV = type { %struct.BV }
461
462 // CHECK-LABEL: 0 | struct EV{{$}}
463 // CHECK-NEXT: 0 | struct DV (primary base)
464 // CHECK-NEXT: 0 | struct BV (primary base)
465 // CHECK-NEXT: 0 | struct AV (primary base)
466 // CHECK-NEXT: 0 | (AV vftable pointer)
467 // CHECK-NEXT: 4 | struct CV (base)
468 // CHECK-NEXT: 4 | (CV vbtable pointer)
469 // CHECK-NEXT: 8 | (vtordisp for vbase BV)
470 // CHECK-NEXT: 12 | struct BV (virtual base)
471 // CHECK-NEXT: 12 | struct AV (primary base)
472 // CHECK-NEXT: 12 | (AV vftable pointer)
473 // CHECK-NEXT: sizeof=16, align=4
474 // CHECK-NEXT: nvsize=8, nvalign=4
475
476 // CHECK: %struct.EV = type { %struct.DV, %struct.CV.base, i32, %struct.BV }
477 // CHECK: %struct.EV.base = type { %struct.DV, %struct.CV.base }
478
479 // Overriding a method means that all the vbases containing that
480 // method need a vtordisp. Note: this code will cause an error in cl.exe.
481 namespace test1 {
482 struct A { virtual void foo(); };
483 struct B : A {};
484 struct C : virtual A, virtual B { C(); virtual void foo(); };
test()485 void test() { C *c; }
486
487 // CHECK-LABEL: 0 | struct test1::C{{$}}
488 // CHECK-NEXT: 0 | (C vbtable pointer)
489 // CHECK-NEXT: 4 | (vtordisp for vbase A)
490 // CHECK-NEXT: 8 | struct test1::A (virtual base)
491 // CHECK-NEXT: 8 | (A vftable pointer)
492 // CHECK-NEXT: 12 | (vtordisp for vbase B)
493 // CHECK-NEXT: 16 | struct test1::B (virtual base)
494 // CHECK-NEXT: 16 | struct test1::A (primary base)
495 // CHECK-NEXT: 16 | (A vftable pointer)
496 // CHECK-NEXT: sizeof=20, align=4
497 // CHECK-NEXT: nvsize=4, nvalign=4
498 }
499