1 // RUN: %clang_cc1 -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts %s 2>/dev/null \
2 // RUN:            | FileCheck %s
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:       0 | class D
164 // CHECK-NEXT:  0 |   (D vftable pointer)
165 // CHECK-NEXT:  8 |   double a
166 
167 // CHECK-NEXT: sizeof=16, align=8
168 // CHECK-NEXT: nvsize=16, nvalign=8
169 
170 // CHECK: %class.D = type { i32 (...)**, double }
171 
172 // CHECK:       0 | class B
173 // CHECK-NEXT:  0 |   (B vftable pointer)
174 // CHECK-NEXT:  4 |   int b_field
175 
176 // CHECK-NEXT: sizeof=8, align=4
177 // CHECK-NEXT: nvsize=8, nvalign=4
178 
179 // CHECK: %class.B = type { i32 (...)**, i32 }
180 
181 // CHECK:       0 | class A
182 // CHECK-NEXT:  0 |   class B (primary base)
183 // CHECK-NEXT:  0 |     (B vftable pointer)
184 // CHECK-NEXT:  4 |     int b_field
185 // CHECK-NEXT:  8 |   int a_field
186 // CHECK-NEXT: 12 |   char one
187 
188 // CHECK-NEXT: sizeof=16, align=4
189 // CHECK-NEXT: nvsize=16, nvalign=4
190 
191 // CHECK:       0 | class C
192 // CHECK-NEXT:  0 |   class D (primary base)
193 // CHECK-NEXT:  0 |     (D vftable pointer)
194 // CHECK-NEXT:  8 |     double a
195 // CHECK-NEXT: 16 |   class B (base)
196 // CHECK-NEXT: 16 |     (B vftable pointer)
197 // CHECK-NEXT: 20 |     int b_field
198 // CHECK-NEXT: 24 |   (C vbtable pointer)
199 // CHECK-NEXT: 32 |   double c1_field
200 // CHECK-NEXT: 40 |   int c2_field
201 // CHECK-NEXT: 48 |   double c3_field
202 // CHECK-NEXT: 56 |   int c4_field
203 // CHECK-NEXT: 64 |   class A (virtual base)
204 // CHECK-NEXT: 64 |     class B (primary base)
205 // CHECK-NEXT: 64 |       (B vftable pointer)
206 // CHECK-NEXT: 68 |       int b_field
207 // CHECK-NEXT: 72 |     int a_field
208 // CHECK-NEXT: 76 |     char one
209 
210 // CHECK-NEXT: sizeof=80, align=8
211 // CHECK-NEXT: nvsize=64, nvalign=8
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:       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:       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:      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:       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:       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:       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:       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:       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:       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:       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 
354 // CHECK:       0 | struct P
355 // CHECK-NEXT:  0 |   struct M (base)
356 // CHECK-NEXT:  0 |     (M vbtable pointer)
357 // CHECK-NEXT:  4 |     int m
358 // CHECK-NEXT:  8 |   int p
359 // CHECK-NEXT: 12 |   struct K (virtual base)
360 // CHECK-NEXT: 12 |     int k
361 // CHECK-NEXT: 16 |   struct L (virtual base)
362 // CHECK-NEXT: 16 |     int l
363 // CHECK-NEXT: sizeof=20, align=4
364 // CHECK-NEXT: nvsize=12, nvalign=4
365 
366 //CHECK: %struct.P = type { %struct.M.base, i32, %struct.K, %struct.L }
367 
368 // CHECK:       0 | struct R (empty)
369 // CHECK-NEXT:  sizeof=1, align=1
370 // CHECK-NEXT:  nvsize=0, nvalign=1
371 
372 //CHECK: %struct.R = type { i8 }
373 
374 // CHECK:       0 | struct f
375 // CHECK-NEXT:  0 |   (f vftable pointer)
376 // CHECK-NEXT: sizeof=4, align=4
377 // CHECK-NEXT: nvsize=4, nvalign=4
378 
379 // CHECK:       0 | struct s
380 // CHECK-NEXT:  0 |   (s vftable pointer)
381 // CHECK-NEXT:  4 |   (s vbtable pointer)
382 // CHECK-NEXT:  8 |   int r
383 // CHECK-NEXT: 12 |   (vtordisp for vbase f)
384 // CHECK-NEXT: 16 |   struct f (virtual base)
385 // CHECK-NEXT: 16 |     (f vftable pointer)
386 // CHECK-NEXT: sizeof=20, align=4
387 // CHECK-NEXT: nvsize=12, nvalign=4
388 
389 // CHECK:       0 | class IA
390 // CHECK-NEXT:  0 |   (IA vftable pointer)
391 // CHECK-NEXT:  sizeof=4, align=4
392 // CHECK-NEXT:  nvsize=4, nvalign=4
393 
394 // CHECK:       0 | class ICh
395 // CHECK-NEXT:  0 |   (ICh vftable pointer)
396 // CHECK-NEXT:  4 |   (ICh vbtable pointer)
397 // CHECK-NEXT:  8 |   (vtordisp for vbase IA)
398 // CHECK-NEXT: 12 |   class IA (virtual base)
399 // CHECK-NEXT: 12 |     (IA vftable pointer)
400 // CHECK-NEXT: sizeof=16, align=4
401 // CHECK-NEXT: nvsize=8, nvalign=4
402 
403 // CHECK:       0 | struct sd
404 // CHECK-NEXT:  0 |   (sd vbtable pointer)
405 // CHECK-NEXT:  4 |   int q
406 // CHECK-NEXT:  8 |   char y
407 // CHECK-NEXT: 12 |   (vtordisp for vbase f)
408 // CHECK-NEXT: 16 |   struct f (virtual base)
409 // CHECK-NEXT: 16 |     (f vftable pointer)
410 // CHECK-NEXT: 20 |   struct s (virtual base)
411 // CHECK-NEXT: 20 |     (s vftable pointer)
412 // CHECK-NEXT: 24 |     (s vbtable pointer)
413 // CHECK-NEXT: 28 |     int r
414 // CHECK-NEXT: 32 |   (vtordisp for vbase IA)
415 // CHECK-NEXT: 36 |   class IA (virtual base)
416 // CHECK-NEXT: 36 |     (IA vftable pointer)
417 // CHECK-NEXT: 40 |   class ICh (virtual base)
418 // CHECK-NEXT: 40 |     (ICh vftable pointer)
419 // CHECK-NEXT: 44 |     (ICh vbtable pointer)
420 // CHECK-NEXT: sizeof=48, align=4
421 // CHECK-NEXT: nvsize=12, nvalign=4
422 
423 // CHECK: %struct.f = type { i32 (...)** }
424 // CHECK: %struct.s = type { i32 (...)**, i32*, i32, i32, %struct.f }
425 // CHECK: %class.IA = type { i32 (...)** }
426 // CHECK: %class.ICh = type { i32 (...)**, i32*, i32, %class.IA }
427 // CHECK: %struct.sd = type { i32*, i32, i8, i32, %struct.f, %struct.s.base, i32, %class.IA, %class.ICh.base }
428 
429 // CHECK:       0 | struct AV
430 // CHECK-NEXT:  0 |   (AV vftable pointer)
431 // CHECK-NEXT: sizeof=4, align=4
432 // CHECK-NEXT: nvsize=4, nvalign=4
433 
434 
435 // CHECK:       0 | struct BV
436 // CHECK-NEXT:  0 |   struct AV (primary base)
437 // CHECK-NEXT:  0 |     (AV vftable pointer)
438 // CHECK-NEXT: sizeof=4, align=4
439 // CHECK-NEXT: nvsize=4, nvalign=4
440 
441 
442 // CHECK:       0 | struct CV
443 // CHECK-NEXT:  0 |   (CV vbtable pointer)
444 // CHECK-NEXT:  4 |   (vtordisp for vbase BV)
445 // CHECK-NEXT:  8 |   struct BV (virtual base)
446 // CHECK-NEXT:  8 |     struct AV (primary base)
447 // CHECK-NEXT:  8 |       (AV vftable pointer)
448 // CHECK-NEXT: sizeof=12, align=4
449 // CHECK-NEXT: nvsize=4, nvalign=4
450 
451 // CHECK: %struct.AV = type { i32 (...)** }
452 // CHECK: %struct.BV = type { %struct.AV }
453 // CHECK: %struct.CV = type { i32*, i32, %struct.BV }
454 // CHECK: %struct.CV.base = type { i32* }
455 
456 // CHECK:       0 | struct DV
457 // CHECK-NEXT:  0 |   struct BV (primary base)
458 // CHECK-NEXT:  0 |     struct AV (primary base)
459 // CHECK-NEXT:  0 |       (AV vftable pointer)
460 // CHECK-NEXT: sizeof=4, align=4
461 // CHECK-NEXT: nvsize=4, nvalign=4
462 
463 // CHECK: %struct.DV = type { %struct.BV }
464 
465 // CHECK:       0 | struct EV
466 // CHECK-NEXT:  0 |   struct DV (primary base)
467 // CHECK-NEXT:  0 |     struct BV (primary base)
468 // CHECK-NEXT:  0 |       struct AV (primary base)
469 // CHECK-NEXT:  0 |         (AV vftable pointer)
470 // CHECK-NEXT:  4 |   struct CV (base)
471 // CHECK-NEXT:  4 |     (CV vbtable pointer)
472 // CHECK-NEXT:  8 |   (vtordisp for vbase BV)
473 // CHECK-NEXT: 12 |   struct BV (virtual base)
474 // CHECK-NEXT: 12 |     struct AV (primary base)
475 // CHECK-NEXT: 12 |       (AV vftable pointer)
476 // CHECK-NEXT: sizeof=16, align=4
477 // CHECK-NEXT: nvsize=8, nvalign=4
478 
479 // CHECK: %struct.EV = type { %struct.DV, %struct.CV.base, i32, %struct.BV }
480 // CHECK: %struct.EV.base = type { %struct.DV, %struct.CV.base }
481 
482 // Overriding a method means that all the vbases containing that
483 // method need a vtordisp.  Note: this code will cause an error in cl.exe.
484 namespace test1 {
485   struct A { virtual void foo(); };
486   struct B : A {};
487   struct C : virtual A, virtual B { C(); virtual void foo(); };
test()488   void test() { C *c; }
489 
490 // CHECK:        0 | struct test1::C
491 // CHECK-NEXT:   0 |   (C vbtable pointer)
492 // CHECK-NEXT:   4 |   (vtordisp for vbase A)
493 // CHECK-NEXT:   8 |   struct test1::A (virtual base)
494 // CHECK-NEXT:   8 |     (A vftable pointer)
495 // CHECK-NEXT:  12 |   (vtordisp for vbase B)
496 // CHECK-NEXT:  16 |   struct test1::B (virtual base)
497 // CHECK-NEXT:  16 |     struct test1::A (primary base)
498 // CHECK-NEXT:  16 |       (A vftable pointer)
499 // CHECK-NEXT:  sizeof=20, align=4
500 // CHECK-NEXT:  nvsize=4, nvalign=4
501 }
502