1 // Some convenient things to return:
2 static char *g_first_pointer = "I am the first";
3 static char *g_second_pointer = "I am the second";
4
5 // First we have some simple functions that return standard types, ints, floats and doubles.
6 // We have a function calling a function in a few cases to test that if you stop in the
7 // inner function then do "up/fin" you get the return value from the outer-most frame.
8
9 int
inner_sint(int value)10 inner_sint (int value)
11 {
12 return value;
13 }
14
15 int
outer_sint(int value)16 outer_sint (int value)
17 {
18 int outer_value = 2 * inner_sint (value);
19 return outer_value;
20 }
21
22 float
inner_float(float value)23 inner_float (float value)
24 {
25 return value;
26 }
27
28 float
outer_float(float value)29 outer_float (float value)
30 {
31 float outer_value = 2 * inner_float(value);
32 return outer_value;
33 }
34
35 double
return_double(double value)36 return_double (double value)
37 {
38 return value;
39 }
40
41 long double
return_long_double(long double value)42 return_long_double (long double value)
43 {
44 return value;
45 }
46
47 char *
return_pointer(char * value)48 return_pointer (char *value)
49 {
50 return value;
51 }
52
53 struct one_int
54 {
55 int one_field;
56 };
57
58 struct one_int
return_one_int(struct one_int value)59 return_one_int (struct one_int value)
60 {
61 return value;
62 }
63
64 struct two_int
65 {
66 int first_field;
67 int second_field;
68 };
69
70 struct two_int
return_two_int(struct two_int value)71 return_two_int (struct two_int value)
72 {
73 return value;
74 }
75
76 struct three_int
77 {
78 int first_field;
79 int second_field;
80 int third_field;
81 };
82
83 struct three_int
return_three_int(struct three_int value)84 return_three_int (struct three_int value)
85 {
86 return value;
87 }
88
89 struct four_int
90 {
91 int first_field;
92 int second_field;
93 int third_field;
94 int fourth_field;
95 };
96
97 struct four_int
return_four_int(struct four_int value)98 return_four_int (struct four_int value)
99 {
100 return value;
101 }
102
103 struct five_int
104 {
105 int first_field;
106 int second_field;
107 int third_field;
108 int fourth_field;
109 int fifth_field;
110 };
111
112 struct five_int
return_five_int(struct five_int value)113 return_five_int (struct five_int value)
114 {
115 return value;
116 }
117
118 struct one_int_one_double
119 {
120 int first_field;
121 double second_field;
122 };
123
124 struct one_int_one_double
return_one_int_one_double(struct one_int_one_double value)125 return_one_int_one_double (struct one_int_one_double value)
126 {
127 return value;
128 }
129
130 struct one_int_one_double_one_int
131 {
132 int one_field;
133 double second_field;
134 int third_field;
135 };
136
137 struct one_int_one_double_one_int
return_one_int_one_double_one_int(struct one_int_one_double_one_int value)138 return_one_int_one_double_one_int (struct one_int_one_double_one_int value)
139 {
140 return value;
141 }
142
143 struct one_short_one_double_one_short
144 {
145 int one_field;
146 double second_field;
147 int third_field;
148 };
149
150 struct one_short_one_double_one_short
return_one_short_one_double_one_short(struct one_short_one_double_one_short value)151 return_one_short_one_double_one_short (struct one_short_one_double_one_short value)
152 {
153 return value;
154 }
155
156 struct three_short_one_float
157 {
158 short one_field;
159 short second_field;
160 short third_field;
161 float fourth_field;
162 };
163
164 struct three_short_one_float
return_three_short_one_float(struct three_short_one_float value)165 return_three_short_one_float (struct three_short_one_float value)
166 {
167 return value;
168 }
169
170 struct one_int_one_float_one_int
171 {
172 int one_field;
173 float second_field;
174 int third_field;
175 };
176
177 struct one_int_one_float_one_int
return_one_int_one_float_one_int(struct one_int_one_float_one_int value)178 return_one_int_one_float_one_int (struct one_int_one_float_one_int value)
179 {
180 return value;
181 }
182
183 struct one_float_one_int_one_float
184 {
185 float one_field;
186 int second_field;
187 float third_field;
188 };
189
190 struct one_float_one_int_one_float
return_one_float_one_int_one_float(struct one_float_one_int_one_float value)191 return_one_float_one_int_one_float (struct one_float_one_int_one_float value)
192 {
193 return value;
194 }
195
196 struct one_double_two_float
197 {
198 double one_field;
199 float second_field;
200 float third_field;
201 };
202
203 struct one_double_two_float
return_one_double_two_float(struct one_double_two_float value)204 return_one_double_two_float (struct one_double_two_float value)
205 {
206 return value;
207 }
208
209 struct two_double
210 {
211 double first_field;
212 double second_field;
213 };
214
215 struct two_double
return_two_double(struct two_double value)216 return_two_double (struct two_double value)
217 {
218 return value;
219 }
220
221 struct two_float
222 {
223 float first_field;
224 float second_field;
225 };
226
227 struct two_float
return_two_float(struct two_float value)228 return_two_float (struct two_float value)
229 {
230 return value;
231 }
232
233 struct one_int_one_double_packed
234 {
235 int first_field;
236 double second_field;
237 } __attribute__((__packed__));
238
239 struct one_int_one_double_packed
return_one_int_one_double_packed(struct one_int_one_double_packed value)240 return_one_int_one_double_packed (struct one_int_one_double_packed value)
241 {
242 return value;
243 }
244
245 struct one_int_one_long
246 {
247 int first_field;
248 long second_field;
249 };
250
251 struct one_int_one_long
return_one_int_one_long(struct one_int_one_long value)252 return_one_int_one_long (struct one_int_one_long value)
253 {
254 return value;
255 }
256
257 struct one_pointer
258 {
259 char *first_field;
260 };
261
262 struct one_pointer
return_one_pointer(struct one_pointer value)263 return_one_pointer (struct one_pointer value)
264 {
265 return value;
266 }
267
268 struct two_pointer
269 {
270 char *first_field;
271 char *second_field;
272 };
273
274 struct two_pointer
return_two_pointer(struct two_pointer value)275 return_two_pointer (struct two_pointer value)
276 {
277 return value;
278 }
279
280 struct one_float_one_pointer
281 {
282 float first_field;
283 char *second_field;
284 };
285
286 struct one_float_one_pointer
return_one_float_one_pointer(struct one_float_one_pointer value)287 return_one_float_one_pointer (struct one_float_one_pointer value)
288 {
289 return value;
290 }
291
292 struct one_int_one_pointer
293 {
294 int first_field;
295 char *second_field;
296 };
297
298 struct one_int_one_pointer
return_one_int_one_pointer(struct one_int_one_pointer value)299 return_one_int_one_pointer (struct one_int_one_pointer value)
300 {
301 return value;
302 }
303
304 struct base_one_char {
305 char c;
306 };
307
308 struct nested_one_float_three_base {
309 float f;
310 struct base_one_char b1;
311 struct base_one_char b2;
312 struct base_one_char b3;
313 }; // returned in RAX for both SysV and Windows
314
315 struct nested_one_float_three_base
return_nested_one_float_three_base(struct nested_one_float_three_base value)316 return_nested_one_float_three_base (struct nested_one_float_three_base value)
317 {
318 return value;
319 }
320
321 struct double_nested_one_float_one_nested {
322 float f;
323 struct nested_one_float_three_base ns;
324 }; // SysV-ABI: returned in XMM0 + RAX
325 // Windows-ABI: returned in memory
326
327 struct double_nested_one_float_one_nested
return_double_nested_one_float_one_nested(struct double_nested_one_float_one_nested value)328 return_double_nested_one_float_one_nested(struct double_nested_one_float_one_nested value)
329 {
330 return value;
331 }
332
333 struct base_float_struct {
334 float f1;
335 float f2;
336 };
337
338 struct nested_float_struct {
339 double d;
340 struct base_float_struct bfs;
341 }; // SysV-ABI: return in xmm0 + xmm1
342 // Windows-ABI: returned in memory
343
344 struct nested_float_struct
return_nested_float_struct(struct nested_float_struct value)345 return_nested_float_struct (struct nested_float_struct value)
346 {
347 return value;
348 }
349
350 struct six_double_three_int {
351 double d1; // 8
352 double d2; // 8
353 int i1; // 4
354 double d3; // 8
355 double d4; // 8
356 int i2; // 4
357 double d5; // 8
358 double d6; // 8
359 int i3; // 4
360 }; // returned in memeory on both SysV and Windows
361
362 struct six_double_three_int
return_six_double_three_int(struct six_double_three_int value)363 return_six_double_three_int (struct six_double_three_int value) {
364 return value;
365 }
366
367 typedef float vector_size_float32_8 __attribute__((__vector_size__(8)));
368 typedef float vector_size_float32_16 __attribute__((__vector_size__(16)));
369 typedef float vector_size_float32_32 __attribute__((__vector_size__(32)));
370
371 typedef float ext_vector_size_float32_2 __attribute__((ext_vector_type(2)));
372 typedef float ext_vector_size_float32_4 __attribute__((ext_vector_type(4)));
373 typedef float ext_vector_size_float32_8 __attribute__((ext_vector_type(8)));
374
375 vector_size_float32_8
return_vector_size_float32_8(vector_size_float32_8 value)376 return_vector_size_float32_8 (vector_size_float32_8 value)
377 {
378 return value;
379 }
380
381 vector_size_float32_16
return_vector_size_float32_16(vector_size_float32_16 value)382 return_vector_size_float32_16 (vector_size_float32_16 value)
383 {
384 return value;
385 }
386
387 vector_size_float32_32
return_vector_size_float32_32(vector_size_float32_32 value)388 return_vector_size_float32_32 (vector_size_float32_32 value)
389 {
390 return value;
391 }
392
393 ext_vector_size_float32_2
return_ext_vector_size_float32_2(ext_vector_size_float32_2 value)394 return_ext_vector_size_float32_2 (ext_vector_size_float32_2 value)
395 {
396 return value;
397 }
398
399 ext_vector_size_float32_4
return_ext_vector_size_float32_4(ext_vector_size_float32_4 value)400 return_ext_vector_size_float32_4 (ext_vector_size_float32_4 value)
401 {
402 return value;
403 }
404
405 ext_vector_size_float32_8
return_ext_vector_size_float32_8(ext_vector_size_float32_8 value)406 return_ext_vector_size_float32_8 (ext_vector_size_float32_8 value)
407 {
408 return value;
409 }
410
411 class base_class_one_char {
412 public:
413 char c = '!';
414 }; // returned in RAX for both ABI
415
416 base_class_one_char
return_base_class_one_char(base_class_one_char value)417 return_base_class_one_char(base_class_one_char value) {
418 return value;
419 }
420
421 class nested_class_float_and_base {
422 public:
423 float f = 0.1;
424 base_class_one_char b;
425 }; // returned in RAX for both ABI
426
427 nested_class_float_and_base
return_nested_class_float_and_base(nested_class_float_and_base value)428 return_nested_class_float_and_base(nested_class_float_and_base value) {
429 return value;
430 }
431
432 class double_nested_class_float_and_nested {
433 public:
434 float f = 0.2;
435 nested_class_float_and_base n;
436 }; // SysV-ABI: returned in XMM0 + RAX
437 // Windows-ABI: returned in memory
438
439 double_nested_class_float_and_nested
return_double_nested_class_float_and_nested(double_nested_class_float_and_nested value)440 return_double_nested_class_float_and_nested(
441 double_nested_class_float_and_nested value) {
442 return value;
443 }
444
445 class base_class {
446 public:
base_class()447 base_class() {
448 c = 'a';
449 c2 = 'b';
450 }
451 private:
452 char c;
453 protected:
454 char c2;
455 }; // returned in RAX for both ABI
456
457 base_class
return_base_class(base_class value)458 return_base_class(base_class value) {
459 return value;
460 }
461
462 class sub_class : base_class {
463 public:
sub_class()464 sub_class() {
465 c2 = '&';
466 i = 10;
467 }
468 private:
469 int i;
470 }; // size 8; should be returned in RAX
471 // Since it's in register, lldb won't be able to get the
472 // fields in base class, expected to fail.
473
474 sub_class
return_sub_class(sub_class value)475 return_sub_class(sub_class value) {
476 return value;
477 }
478
479 class abstract_class {
480 public:
481 virtual char getChar() = 0;
482 private:
483 int i = 8;
484 protected:
485 char c = '!';
486 };
487
488 class derived_class : abstract_class {
489 public:
derived_class()490 derived_class() {
491 c = '?';
492 }
getChar()493 char getChar() {
494 return this->c;
495 }
496 private:
497 char c2 = '$';
498 }; // size: 16; contains non POD member, returned in memory
499
500 derived_class
return_derived_class(derived_class value)501 return_derived_class(derived_class value) {
502 return value;
503 }
504
505 int
main()506 main ()
507 {
508 int first_int = 123456;
509 int second_int = 234567;
510
511 outer_sint (first_int);
512 outer_sint (second_int);
513
514 float first_float_value = 12.34;
515 float second_float_value = 23.45;
516
517 outer_float (first_float_value);
518 outer_float (second_float_value);
519
520 double double_value = -23.45;
521
522 return_double (double_value);
523
524 return_pointer(g_first_pointer);
525
526 long double long_double_value = -3456789.987654321;
527
528 return_long_double (long_double_value);
529
530 // Okay, now the structures:
531 return_one_int ((struct one_int) {10});
532 return_two_int ((struct two_int) {10, 20});
533 return_three_int ((struct three_int) {10, 20, 30});
534 return_four_int ((struct four_int) {10, 20, 30, 40});
535 return_five_int ((struct five_int) {10, 20, 30, 40, 50});
536
537 return_two_double ((struct two_double) {10.0, 20.0});
538 return_one_double_two_float ((struct one_double_two_float) {10.0, 20.0, 30.0});
539 return_one_int_one_float_one_int ((struct one_int_one_float_one_int) {10, 20.0, 30});
540
541 return_one_pointer ((struct one_pointer) {g_first_pointer});
542 return_two_pointer ((struct two_pointer) {g_first_pointer, g_second_pointer});
543 return_one_float_one_pointer ((struct one_float_one_pointer) {10.0, g_first_pointer});
544 return_one_int_one_pointer ((struct one_int_one_pointer) {10, g_first_pointer});
545 return_three_short_one_float ((struct three_short_one_float) {10, 20, 30, 40.0});
546
547 return_one_int_one_double ((struct one_int_one_double) {10, 20.0});
548 return_one_int_one_double_one_int ((struct one_int_one_double_one_int) {10, 20.0, 30});
549 return_one_short_one_double_one_short ((struct one_short_one_double_one_short) {10, 20.0, 30});
550 return_one_float_one_int_one_float ((struct one_float_one_int_one_float) {10.0, 20, 30.0});
551 return_two_float ((struct two_float) { 10.0, 20.0});
552 return_one_int_one_double_packed ((struct one_int_one_double_packed) {10, 20.0});
553 return_one_int_one_long ((struct one_int_one_long) {10, 20});
554
555 return_nested_one_float_three_base((struct nested_one_float_three_base) {
556 10.0,
557 (struct base_one_char) {
558 'x'
559 },
560 (struct base_one_char) {
561 'y'
562 },
563 (struct base_one_char) {
564 'z'
565 }
566 });
567 return_double_nested_one_float_one_nested((struct double_nested_one_float_one_nested) {
568 10.0,
569 (struct nested_one_float_three_base) {
570 20.0,
571 (struct base_one_char) {
572 'x'
573 },
574 (struct base_one_char) {
575 'y'
576 },
577 (struct base_one_char) {
578 'z'
579 }
580 }});
581 return_nested_float_struct((struct nested_float_struct) {
582 10.0,
583 (struct base_float_struct) {
584 20.0,
585 30.0
586 }});
587 return_six_double_three_int((struct six_double_three_int) {
588 10.0, 20.0, 1, 30.0, 40.0, 2, 50.0, 60.0, 3});
589
590 return_base_class_one_char(base_class_one_char());
591 return_nested_class_float_and_base(nested_class_float_and_base());
592 return_double_nested_class_float_and_nested(double_nested_class_float_and_nested());
593 return_base_class(base_class());
594 // this is expected to fail
595 return_sub_class(sub_class());
596 return_derived_class(derived_class());
597
598 return_vector_size_float32_8 (( vector_size_float32_8 ){1.5, 2.25});
599 return_vector_size_float32_16 (( vector_size_float32_16 ){1.5, 2.25, 4.125, 8.0625});
600 return_vector_size_float32_32 (( vector_size_float32_32 ){1.5, 2.25, 4.125, 8.0625, 7.89, 8.52, 6.31, 9.12});
601
602 return_ext_vector_size_float32_2 ((ext_vector_size_float32_2){ 16.5, 32.25});
603 return_ext_vector_size_float32_4 ((ext_vector_size_float32_4){ 16.5, 32.25, 64.125, 128.0625});
604 return_ext_vector_size_float32_8 ((ext_vector_size_float32_8){ 16.5, 32.25, 64.125, 128.0625, 1.59, 3.57, 8.63, 9.12 });
605
606 return 0;
607 }
608