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f4b8a18d | 1 | /* OpenCL language support for GDB, the GNU debugger. |
1d506c26 | 2 | Copyright (C) 2010-2024 Free Software Foundation, Inc. |
f4b8a18d KW |
3 | |
4 | Contributed by Ken Werner <ken.werner@de.ibm.com>. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "defs.h" | |
f4b8a18d KW |
22 | #include "gdbtypes.h" |
23 | #include "symtab.h" | |
24 | #include "expression.h" | |
25 | #include "parser-defs.h" | |
f4b8a18d | 26 | #include "language.h" |
a53b64ea | 27 | #include "varobj.h" |
f4b8a18d | 28 | #include "c-lang.h" |
0d12e84c | 29 | #include "gdbarch.h" |
e9677704 | 30 | #include "c-exp.h" |
f4b8a18d | 31 | |
f4b8a18d KW |
32 | /* Returns the corresponding OpenCL vector type from the given type code, |
33 | the length of the element type, the unsigned flag and the amount of | |
34 | elements (N). */ | |
35 | ||
36 | static struct type * | |
37 | lookup_opencl_vector_type (struct gdbarch *gdbarch, enum type_code code, | |
38 | unsigned int el_length, unsigned int flag_unsigned, | |
39 | int n) | |
40 | { | |
f4b8a18d | 41 | unsigned int length; |
f4b8a18d KW |
42 | |
43 | /* Check if n describes a valid OpenCL vector size (2, 3, 4, 8, 16). */ | |
44 | if (n != 2 && n != 3 && n != 4 && n != 8 && n != 16) | |
45 | error (_("Invalid OpenCL vector size: %d"), n); | |
46 | ||
47 | /* Triple vectors have the size of a quad vector. */ | |
48 | length = (n == 3) ? el_length * 4 : el_length * n; | |
49 | ||
cbbcd7a7 | 50 | auto filter = [&] (struct type *type) |
7bea47f0 AB |
51 | { |
52 | LONGEST lowb, highb; | |
53 | ||
54 | return (type->code () == TYPE_CODE_ARRAY && type->is_vector () | |
55 | && get_array_bounds (type, &lowb, &highb) | |
27710edb SM |
56 | && type->target_type ()->code () == code |
57 | && type->target_type ()->is_unsigned () == flag_unsigned | |
df86565b SM |
58 | && type->target_type ()->length () == el_length |
59 | && type->length () == length | |
7bea47f0 AB |
60 | && highb - lowb + 1 == n); |
61 | }; | |
62 | const struct language_defn *lang = language_def (language_opencl); | |
63 | return language_lookup_primitive_type (lang, gdbarch, filter); | |
f4b8a18d KW |
64 | } |
65 | ||
66 | /* Returns nonzero if the array ARR contains duplicates within | |
67 | the first N elements. */ | |
68 | ||
69 | static int | |
70 | array_has_dups (int *arr, int n) | |
71 | { | |
72 | int i, j; | |
73 | ||
74 | for (i = 0; i < n; i++) | |
75 | { | |
76 | for (j = i + 1; j < n; j++) | |
dda83cd7 SM |
77 | { |
78 | if (arr[i] == arr[j]) | |
79 | return 1; | |
80 | } | |
f4b8a18d KW |
81 | } |
82 | ||
83 | return 0; | |
84 | } | |
85 | ||
86 | /* The OpenCL component access syntax allows to create lvalues referring to | |
87 | selected elements of an original OpenCL vector in arbitrary order. This | |
88 | structure holds the information to describe such lvalues. */ | |
89 | ||
90 | struct lval_closure | |
91 | { | |
92 | /* Reference count. */ | |
93 | int refc; | |
94 | /* The number of indices. */ | |
95 | int n; | |
96 | /* The element indices themselves. */ | |
97 | int *indices; | |
98 | /* A pointer to the original value. */ | |
99 | struct value *val; | |
100 | }; | |
101 | ||
102 | /* Allocates an instance of struct lval_closure. */ | |
103 | ||
104 | static struct lval_closure * | |
105 | allocate_lval_closure (int *indices, int n, struct value *val) | |
106 | { | |
41bf6aca | 107 | struct lval_closure *c = XCNEW (struct lval_closure); |
f4b8a18d KW |
108 | |
109 | c->refc = 1; | |
110 | c->n = n; | |
fc270c35 | 111 | c->indices = XCNEWVEC (int, n); |
f4b8a18d | 112 | memcpy (c->indices, indices, n * sizeof (int)); |
cdf3de17 | 113 | val->incref (); /* Increment the reference counter of the value. */ |
f4b8a18d KW |
114 | c->val = val; |
115 | ||
116 | return c; | |
117 | } | |
118 | ||
119 | static void | |
120 | lval_func_read (struct value *v) | |
121 | { | |
b9f74d54 | 122 | struct lval_closure *c = (struct lval_closure *) v->computed_closure (); |
d0c97917 TT |
123 | struct type *type = check_typedef (v->type ()); |
124 | struct type *eltype = check_typedef (c->val->type ())->target_type (); | |
76675c4d | 125 | LONGEST offset = v->offset (); |
df86565b | 126 | LONGEST elsize = eltype->length (); |
f4b8a18d KW |
127 | int n, i, j = 0; |
128 | LONGEST lowb = 0; | |
129 | LONGEST highb = 0; | |
130 | ||
78134374 | 131 | if (type->code () == TYPE_CODE_ARRAY |
f4b8a18d KW |
132 | && !get_array_bounds (type, &lowb, &highb)) |
133 | error (_("Could not determine the vector bounds")); | |
134 | ||
135 | /* Assume elsize aligned offset. */ | |
136 | gdb_assert (offset % elsize == 0); | |
137 | offset /= elsize; | |
138 | n = offset + highb - lowb + 1; | |
139 | gdb_assert (n <= c->n); | |
140 | ||
141 | for (i = offset; i < n; i++) | |
bbe912ba | 142 | memcpy (v->contents_raw ().data () + j++ * elsize, |
efaf1ae0 | 143 | c->val->contents ().data () + c->indices[i] * elsize, |
f4b8a18d KW |
144 | elsize); |
145 | } | |
146 | ||
147 | static void | |
148 | lval_func_write (struct value *v, struct value *fromval) | |
149 | { | |
65558ca5 TT |
150 | scoped_value_mark mark; |
151 | ||
b9f74d54 | 152 | struct lval_closure *c = (struct lval_closure *) v->computed_closure (); |
d0c97917 TT |
153 | struct type *type = check_typedef (v->type ()); |
154 | struct type *eltype = check_typedef (c->val->type ())->target_type (); | |
76675c4d | 155 | LONGEST offset = v->offset (); |
df86565b | 156 | LONGEST elsize = eltype->length (); |
f4b8a18d KW |
157 | int n, i, j = 0; |
158 | LONGEST lowb = 0; | |
159 | LONGEST highb = 0; | |
160 | ||
78134374 | 161 | if (type->code () == TYPE_CODE_ARRAY |
f4b8a18d KW |
162 | && !get_array_bounds (type, &lowb, &highb)) |
163 | error (_("Could not determine the vector bounds")); | |
164 | ||
165 | /* Assume elsize aligned offset. */ | |
166 | gdb_assert (offset % elsize == 0); | |
167 | offset /= elsize; | |
168 | n = offset + highb - lowb + 1; | |
169 | ||
170 | /* Since accesses to the fourth component of a triple vector is undefined we | |
171 | just skip writes to the fourth element. Imagine something like this: | |
172 | int3 i3 = (int3)(0, 1, 2); | |
173 | i3.hi.hi = 5; | |
174 | In this case n would be 4 (offset=12/4 + 1) while c->n would be 3. */ | |
175 | if (n > c->n) | |
176 | n = c->n; | |
177 | ||
178 | for (i = offset; i < n; i++) | |
179 | { | |
317c3ed9 | 180 | struct value *from_elm_val = value::allocate (eltype); |
f4b8a18d KW |
181 | struct value *to_elm_val = value_subscript (c->val, c->indices[i]); |
182 | ||
bbe912ba | 183 | memcpy (from_elm_val->contents_writeable ().data (), |
efaf1ae0 | 184 | fromval->contents ().data () + j++ * elsize, |
f4b8a18d KW |
185 | elsize); |
186 | value_assign (to_elm_val, from_elm_val); | |
187 | } | |
f4b8a18d KW |
188 | } |
189 | ||
19124154 | 190 | /* Return true if bits in V from OFFSET and LENGTH represent a |
8cf6f0b1 TT |
191 | synthetic pointer. */ |
192 | ||
19124154 | 193 | static bool |
8cf6f0b1 | 194 | lval_func_check_synthetic_pointer (const struct value *v, |
6b850546 | 195 | LONGEST offset, int length) |
8cf6f0b1 | 196 | { |
b9f74d54 | 197 | struct lval_closure *c = (struct lval_closure *) v->computed_closure (); |
8cf6f0b1 TT |
198 | /* Size of the target type in bits. */ |
199 | int elsize = | |
d0c97917 | 200 | check_typedef (c->val->type ())->target_type ()->length () * 8; |
8cf6f0b1 TT |
201 | int startrest = offset % elsize; |
202 | int start = offset / elsize; | |
203 | int endrest = (offset + length) % elsize; | |
204 | int end = (offset + length) / elsize; | |
205 | int i; | |
206 | ||
207 | if (endrest) | |
208 | end++; | |
209 | ||
210 | if (end > c->n) | |
19124154 | 211 | return false; |
8cf6f0b1 TT |
212 | |
213 | for (i = start; i < end; i++) | |
214 | { | |
8f9a01ee MS |
215 | int comp_offset = (i == start) ? startrest : 0; |
216 | int comp_length = (i == end) ? endrest : elsize; | |
8cf6f0b1 | 217 | |
e989e637 TT |
218 | if (!c->val->bits_synthetic_pointer (c->indices[i] * elsize + comp_offset, |
219 | comp_length)) | |
19124154 | 220 | return false; |
8cf6f0b1 TT |
221 | } |
222 | ||
19124154 | 223 | return true; |
8cf6f0b1 TT |
224 | } |
225 | ||
f4b8a18d KW |
226 | static void * |
227 | lval_func_copy_closure (const struct value *v) | |
228 | { | |
b9f74d54 | 229 | struct lval_closure *c = (struct lval_closure *) v->computed_closure (); |
f4b8a18d KW |
230 | |
231 | ++c->refc; | |
232 | ||
233 | return c; | |
234 | } | |
235 | ||
236 | static void | |
237 | lval_func_free_closure (struct value *v) | |
238 | { | |
b9f74d54 | 239 | struct lval_closure *c = (struct lval_closure *) v->computed_closure (); |
f4b8a18d KW |
240 | |
241 | --c->refc; | |
242 | ||
243 | if (c->refc == 0) | |
244 | { | |
cdf3de17 | 245 | c->val->decref (); /* Decrement the reference counter of the value. */ |
f4b8a18d KW |
246 | xfree (c->indices); |
247 | xfree (c); | |
f4b8a18d KW |
248 | } |
249 | } | |
250 | ||
c8f2448a | 251 | static const struct lval_funcs opencl_value_funcs = |
f4b8a18d KW |
252 | { |
253 | lval_func_read, | |
254 | lval_func_write, | |
a519e8ff | 255 | nullptr, |
a471c594 JK |
256 | NULL, /* indirect */ |
257 | NULL, /* coerce_ref */ | |
8cf6f0b1 | 258 | lval_func_check_synthetic_pointer, |
f4b8a18d KW |
259 | lval_func_copy_closure, |
260 | lval_func_free_closure | |
261 | }; | |
262 | ||
263 | /* Creates a sub-vector from VAL. The elements are selected by the indices of | |
264 | an array with the length of N. Supported values for NOSIDE are | |
265 | EVAL_NORMAL and EVAL_AVOID_SIDE_EFFECTS. */ | |
266 | ||
267 | static struct value * | |
268 | create_value (struct gdbarch *gdbarch, struct value *val, enum noside noside, | |
269 | int *indices, int n) | |
270 | { | |
d0c97917 | 271 | struct type *type = check_typedef (val->type ()); |
27710edb | 272 | struct type *elm_type = type->target_type (); |
f4b8a18d KW |
273 | struct value *ret; |
274 | ||
275 | /* Check if a single component of a vector is requested which means | |
276 | the resulting type is a (primitive) scalar type. */ | |
277 | if (n == 1) | |
278 | { | |
279 | if (noside == EVAL_AVOID_SIDE_EFFECTS) | |
ee7bb294 | 280 | ret = value::zero (elm_type, not_lval); |
f4b8a18d | 281 | else |
dda83cd7 | 282 | ret = value_subscript (val, indices[0]); |
f4b8a18d KW |
283 | } |
284 | else | |
285 | { | |
286 | /* Multiple components of the vector are requested which means the | |
287 | resulting type is a vector as well. */ | |
288 | struct type *dst_type = | |
78134374 | 289 | lookup_opencl_vector_type (gdbarch, elm_type->code (), |
df86565b | 290 | elm_type->length (), |
c6d940a9 | 291 | elm_type->is_unsigned (), n); |
f4b8a18d KW |
292 | |
293 | if (dst_type == NULL) | |
294 | dst_type = init_vector_type (elm_type, n); | |
295 | ||
296 | make_cv_type (TYPE_CONST (type), TYPE_VOLATILE (type), dst_type, NULL); | |
297 | ||
298 | if (noside == EVAL_AVOID_SIDE_EFFECTS) | |
317c3ed9 | 299 | ret = value::allocate (dst_type); |
f4b8a18d KW |
300 | else |
301 | { | |
302 | /* Check whether to create a lvalue or not. */ | |
736355f2 | 303 | if (val->lval () != not_lval && !array_has_dups (indices, n)) |
f4b8a18d KW |
304 | { |
305 | struct lval_closure *c = allocate_lval_closure (indices, n, val); | |
b64e2602 | 306 | ret = value::allocate_computed (dst_type, &opencl_value_funcs, c); |
f4b8a18d KW |
307 | } |
308 | else | |
309 | { | |
310 | int i; | |
311 | ||
317c3ed9 | 312 | ret = value::allocate (dst_type); |
f4b8a18d KW |
313 | |
314 | /* Copy src val contents into the destination value. */ | |
315 | for (i = 0; i < n; i++) | |
bbe912ba | 316 | memcpy (ret->contents_writeable ().data () |
df86565b | 317 | + (i * elm_type->length ()), |
efaf1ae0 | 318 | val->contents ().data () |
df86565b SM |
319 | + (indices[i] * elm_type->length ()), |
320 | elm_type->length ()); | |
f4b8a18d KW |
321 | } |
322 | } | |
323 | } | |
324 | return ret; | |
325 | } | |
326 | ||
327 | /* OpenCL vector component access. */ | |
328 | ||
329 | static struct value * | |
749065b7 TT |
330 | opencl_component_ref (struct expression *exp, struct value *val, |
331 | const char *comps, enum noside noside) | |
f4b8a18d KW |
332 | { |
333 | LONGEST lowb, highb; | |
334 | int src_len; | |
335 | struct value *v; | |
336 | int indices[16], i; | |
337 | int dst_len; | |
338 | ||
d0c97917 | 339 | if (!get_array_bounds (check_typedef (val->type ()), &lowb, &highb)) |
f4b8a18d KW |
340 | error (_("Could not determine the vector bounds")); |
341 | ||
342 | src_len = highb - lowb + 1; | |
343 | ||
344 | /* Throw an error if the amount of array elements does not fit a | |
345 | valid OpenCL vector size (2, 3, 4, 8, 16). */ | |
346 | if (src_len != 2 && src_len != 3 && src_len != 4 && src_len != 8 | |
347 | && src_len != 16) | |
348 | error (_("Invalid OpenCL vector size")); | |
349 | ||
350 | if (strcmp (comps, "lo") == 0 ) | |
351 | { | |
352 | dst_len = (src_len == 3) ? 2 : src_len / 2; | |
353 | ||
354 | for (i = 0; i < dst_len; i++) | |
355 | indices[i] = i; | |
356 | } | |
357 | else if (strcmp (comps, "hi") == 0) | |
358 | { | |
359 | dst_len = (src_len == 3) ? 2 : src_len / 2; | |
360 | ||
361 | for (i = 0; i < dst_len; i++) | |
362 | indices[i] = dst_len + i; | |
363 | } | |
364 | else if (strcmp (comps, "even") == 0) | |
365 | { | |
366 | dst_len = (src_len == 3) ? 2 : src_len / 2; | |
367 | ||
368 | for (i = 0; i < dst_len; i++) | |
369 | indices[i] = i*2; | |
370 | } | |
371 | else if (strcmp (comps, "odd") == 0) | |
372 | { | |
373 | dst_len = (src_len == 3) ? 2 : src_len / 2; | |
374 | ||
375 | for (i = 0; i < dst_len; i++) | |
dda83cd7 | 376 | indices[i] = i*2+1; |
f4b8a18d KW |
377 | } |
378 | else if (strncasecmp (comps, "s", 1) == 0) | |
379 | { | |
380 | #define HEXCHAR_TO_INT(C) ((C >= '0' && C <= '9') ? \ | |
dda83cd7 SM |
381 | C-'0' : ((C >= 'A' && C <= 'F') ? \ |
382 | C-'A'+10 : ((C >= 'a' && C <= 'f') ? \ | |
383 | C-'a'+10 : -1))) | |
f4b8a18d KW |
384 | |
385 | dst_len = strlen (comps); | |
386 | /* Skip the s/S-prefix. */ | |
387 | dst_len--; | |
388 | ||
389 | for (i = 0; i < dst_len; i++) | |
390 | { | |
391 | indices[i] = HEXCHAR_TO_INT(comps[i+1]); | |
392 | /* Check if the requested component is invalid or exceeds | |
393 | the vector. */ | |
394 | if (indices[i] < 0 || indices[i] >= src_len) | |
395 | error (_("Invalid OpenCL vector component accessor %s"), comps); | |
396 | } | |
397 | } | |
398 | else | |
399 | { | |
400 | dst_len = strlen (comps); | |
401 | ||
402 | for (i = 0; i < dst_len; i++) | |
403 | { | |
404 | /* x, y, z, w */ | |
405 | switch (comps[i]) | |
406 | { | |
407 | case 'x': | |
408 | indices[i] = 0; | |
409 | break; | |
410 | case 'y': | |
411 | indices[i] = 1; | |
412 | break; | |
413 | case 'z': | |
414 | if (src_len < 3) | |
415 | error (_("Invalid OpenCL vector component accessor %s"), comps); | |
416 | indices[i] = 2; | |
417 | break; | |
418 | case 'w': | |
419 | if (src_len < 4) | |
420 | error (_("Invalid OpenCL vector component accessor %s"), comps); | |
421 | indices[i] = 3; | |
422 | break; | |
423 | default: | |
424 | error (_("Invalid OpenCL vector component accessor %s"), comps); | |
425 | break; | |
426 | } | |
427 | } | |
428 | } | |
429 | ||
430 | /* Throw an error if the amount of requested components does not | |
431 | result in a valid length (1, 2, 3, 4, 8, 16). */ | |
432 | if (dst_len != 1 && dst_len != 2 && dst_len != 3 && dst_len != 4 | |
433 | && dst_len != 8 && dst_len != 16) | |
434 | error (_("Invalid OpenCL vector component accessor %s"), comps); | |
435 | ||
436 | v = create_value (exp->gdbarch, val, noside, indices, dst_len); | |
437 | ||
438 | return v; | |
439 | } | |
440 | ||
441 | /* Perform the unary logical not (!) operation. */ | |
442 | ||
2492ba36 TT |
443 | struct value * |
444 | opencl_logical_not (struct type *expect_type, struct expression *exp, | |
445 | enum noside noside, enum exp_opcode op, | |
446 | struct value *arg) | |
f4b8a18d | 447 | { |
d0c97917 | 448 | struct type *type = check_typedef (arg->type ()); |
f4b8a18d KW |
449 | struct type *rettype; |
450 | struct value *ret; | |
451 | ||
bd63c870 | 452 | if (type->code () == TYPE_CODE_ARRAY && type->is_vector ()) |
f4b8a18d | 453 | { |
27710edb | 454 | struct type *eltype = check_typedef (type->target_type ()); |
f4b8a18d KW |
455 | LONGEST lowb, highb; |
456 | int i; | |
457 | ||
458 | if (!get_array_bounds (type, &lowb, &highb)) | |
459 | error (_("Could not determine the vector bounds")); | |
460 | ||
461 | /* Determine the resulting type of the operation and allocate the | |
462 | value. */ | |
463 | rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT, | |
df86565b | 464 | eltype->length (), 0, |
f4b8a18d | 465 | highb - lowb + 1); |
317c3ed9 | 466 | ret = value::allocate (rettype); |
f4b8a18d KW |
467 | |
468 | for (i = 0; i < highb - lowb + 1; i++) | |
469 | { | |
470 | /* For vector types, the unary operator shall return a 0 if the | |
471 | value of its operand compares unequal to 0, and -1 (i.e. all bits | |
472 | set) if the value of its operand compares equal to 0. */ | |
473 | int tmp = value_logical_not (value_subscript (arg, i)) ? -1 : 0; | |
bbe912ba | 474 | memset ((ret->contents_writeable ().data () |
df86565b SM |
475 | + i * eltype->length ()), |
476 | tmp, eltype->length ()); | |
f4b8a18d KW |
477 | } |
478 | } | |
479 | else | |
480 | { | |
481 | rettype = language_bool_type (exp->language_defn, exp->gdbarch); | |
482 | ret = value_from_longest (rettype, value_logical_not (arg)); | |
483 | } | |
484 | ||
485 | return ret; | |
486 | } | |
487 | ||
488 | /* Perform a relational operation on two scalar operands. */ | |
489 | ||
490 | static int | |
491 | scalar_relop (struct value *val1, struct value *val2, enum exp_opcode op) | |
492 | { | |
493 | int ret; | |
494 | ||
495 | switch (op) | |
496 | { | |
497 | case BINOP_EQUAL: | |
498 | ret = value_equal (val1, val2); | |
499 | break; | |
500 | case BINOP_NOTEQUAL: | |
501 | ret = !value_equal (val1, val2); | |
502 | break; | |
503 | case BINOP_LESS: | |
504 | ret = value_less (val1, val2); | |
505 | break; | |
506 | case BINOP_GTR: | |
507 | ret = value_less (val2, val1); | |
508 | break; | |
509 | case BINOP_GEQ: | |
510 | ret = value_less (val2, val1) || value_equal (val1, val2); | |
511 | break; | |
512 | case BINOP_LEQ: | |
513 | ret = value_less (val1, val2) || value_equal (val1, val2); | |
514 | break; | |
515 | case BINOP_LOGICAL_AND: | |
516 | ret = !value_logical_not (val1) && !value_logical_not (val2); | |
517 | break; | |
518 | case BINOP_LOGICAL_OR: | |
519 | ret = !value_logical_not (val1) || !value_logical_not (val2); | |
520 | break; | |
521 | default: | |
522 | error (_("Attempt to perform an unsupported operation")); | |
523 | break; | |
524 | } | |
525 | return ret; | |
526 | } | |
527 | ||
528 | /* Perform a relational operation on two vector operands. */ | |
529 | ||
530 | static struct value * | |
531 | vector_relop (struct expression *exp, struct value *val1, struct value *val2, | |
532 | enum exp_opcode op) | |
533 | { | |
534 | struct value *ret; | |
535 | struct type *type1, *type2, *eltype1, *eltype2, *rettype; | |
536 | int t1_is_vec, t2_is_vec, i; | |
537 | LONGEST lowb1, lowb2, highb1, highb2; | |
538 | ||
d0c97917 TT |
539 | type1 = check_typedef (val1->type ()); |
540 | type2 = check_typedef (val2->type ()); | |
f4b8a18d | 541 | |
bd63c870 SM |
542 | t1_is_vec = (type1->code () == TYPE_CODE_ARRAY && type1->is_vector ()); |
543 | t2_is_vec = (type2->code () == TYPE_CODE_ARRAY && type2->is_vector ()); | |
f4b8a18d KW |
544 | |
545 | if (!t1_is_vec || !t2_is_vec) | |
546 | error (_("Vector operations are not supported on scalar types")); | |
547 | ||
27710edb SM |
548 | eltype1 = check_typedef (type1->target_type ()); |
549 | eltype2 = check_typedef (type2->target_type ()); | |
f4b8a18d KW |
550 | |
551 | if (!get_array_bounds (type1,&lowb1, &highb1) | |
552 | || !get_array_bounds (type2, &lowb2, &highb2)) | |
553 | error (_("Could not determine the vector bounds")); | |
554 | ||
555 | /* Check whether the vector types are compatible. */ | |
78134374 | 556 | if (eltype1->code () != eltype2->code () |
df86565b | 557 | || eltype1->length () != eltype2->length () |
c6d940a9 | 558 | || eltype1->is_unsigned () != eltype2->is_unsigned () |
f4b8a18d KW |
559 | || lowb1 != lowb2 || highb1 != highb2) |
560 | error (_("Cannot perform operation on vectors with different types")); | |
561 | ||
562 | /* Determine the resulting type of the operation and allocate the value. */ | |
563 | rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT, | |
df86565b | 564 | eltype1->length (), 0, |
f4b8a18d | 565 | highb1 - lowb1 + 1); |
317c3ed9 | 566 | ret = value::allocate (rettype); |
f4b8a18d KW |
567 | |
568 | for (i = 0; i < highb1 - lowb1 + 1; i++) | |
569 | { | |
570 | /* For vector types, the relational, equality and logical operators shall | |
571 | return 0 if the specified relation is false and -1 (i.e. all bits set) | |
572 | if the specified relation is true. */ | |
573 | int tmp = scalar_relop (value_subscript (val1, i), | |
574 | value_subscript (val2, i), op) ? -1 : 0; | |
bbe912ba | 575 | memset ((ret->contents_writeable ().data () |
df86565b SM |
576 | + i * eltype1->length ()), |
577 | tmp, eltype1->length ()); | |
f4b8a18d KW |
578 | } |
579 | ||
580 | return ret; | |
581 | } | |
582 | ||
8954db33 AB |
583 | /* Perform a cast of ARG into TYPE. There's sadly a lot of duplication in |
584 | here from valops.c:value_cast, opencl is different only in the | |
585 | behaviour of scalar to vector casting. As far as possibly we're going | |
586 | to try and delegate back to the standard value_cast function. */ | |
587 | ||
e9677704 | 588 | struct value * |
8954db33 AB |
589 | opencl_value_cast (struct type *type, struct value *arg) |
590 | { | |
d0c97917 | 591 | if (type != arg->type ()) |
8954db33 AB |
592 | { |
593 | /* Casting scalar to vector is a special case for OpenCL, scalar | |
594 | is cast to element type of vector then replicated into each | |
595 | element of the vector. First though, we need to work out if | |
596 | this is a scalar to vector cast; code lifted from | |
597 | valops.c:value_cast. */ | |
598 | enum type_code code1, code2; | |
599 | struct type *to_type; | |
600 | int scalar; | |
601 | ||
602 | to_type = check_typedef (type); | |
603 | ||
78134374 | 604 | code1 = to_type->code (); |
d0c97917 | 605 | code2 = check_typedef (arg->type ())->code (); |
8954db33 AB |
606 | |
607 | if (code2 == TYPE_CODE_REF) | |
d0c97917 | 608 | code2 = check_typedef (coerce_ref(arg)->type ())->code (); |
8954db33 AB |
609 | |
610 | scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_BOOL | |
611 | || code2 == TYPE_CODE_CHAR || code2 == TYPE_CODE_FLT | |
612 | || code2 == TYPE_CODE_DECFLOAT || code2 == TYPE_CODE_ENUM | |
613 | || code2 == TYPE_CODE_RANGE); | |
614 | ||
bd63c870 | 615 | if (code1 == TYPE_CODE_ARRAY && to_type->is_vector () && scalar) |
8954db33 AB |
616 | { |
617 | struct type *eltype; | |
618 | ||
619 | /* Cast to the element type of the vector here as | |
620 | value_vector_widen will error if the scalar value is | |
621 | truncated by the cast. To avoid the error, cast (and | |
622 | possibly truncate) here. */ | |
27710edb | 623 | eltype = check_typedef (to_type->target_type ()); |
8954db33 AB |
624 | arg = value_cast (eltype, arg); |
625 | ||
626 | return value_vector_widen (arg, type); | |
627 | } | |
628 | else | |
629 | /* Standard cast handler. */ | |
630 | arg = value_cast (type, arg); | |
631 | } | |
632 | return arg; | |
633 | } | |
634 | ||
f4b8a18d KW |
635 | /* Perform a relational operation on two operands. */ |
636 | ||
a88c3c8d TT |
637 | struct value * |
638 | opencl_relop (struct type *expect_type, struct expression *exp, | |
639 | enum noside noside, enum exp_opcode op, | |
640 | struct value *arg1, struct value *arg2) | |
f4b8a18d KW |
641 | { |
642 | struct value *val; | |
d0c97917 TT |
643 | struct type *type1 = check_typedef (arg1->type ()); |
644 | struct type *type2 = check_typedef (arg2->type ()); | |
78134374 | 645 | int t1_is_vec = (type1->code () == TYPE_CODE_ARRAY |
bd63c870 | 646 | && type1->is_vector ()); |
78134374 | 647 | int t2_is_vec = (type2->code () == TYPE_CODE_ARRAY |
bd63c870 | 648 | && type2->is_vector ()); |
f4b8a18d KW |
649 | |
650 | if (!t1_is_vec && !t2_is_vec) | |
651 | { | |
652 | int tmp = scalar_relop (arg1, arg2, op); | |
653 | struct type *type = | |
654 | language_bool_type (exp->language_defn, exp->gdbarch); | |
655 | ||
656 | val = value_from_longest (type, tmp); | |
657 | } | |
658 | else if (t1_is_vec && t2_is_vec) | |
659 | { | |
660 | val = vector_relop (exp, arg1, arg2, op); | |
661 | } | |
662 | else | |
663 | { | |
664 | /* Widen the scalar operand to a vector. */ | |
665 | struct value **v = t1_is_vec ? &arg2 : &arg1; | |
666 | struct type *t = t1_is_vec ? type2 : type1; | |
667 | ||
78134374 | 668 | if (t->code () != TYPE_CODE_FLT && !is_integral_type (t)) |
f4b8a18d KW |
669 | error (_("Argument to operation not a number or boolean.")); |
670 | ||
8954db33 | 671 | *v = opencl_value_cast (t1_is_vec ? type1 : type2, *v); |
f4b8a18d KW |
672 | val = vector_relop (exp, arg1, arg2, op); |
673 | } | |
674 | ||
675 | return val; | |
676 | } | |
677 | ||
3634f669 TT |
678 | /* A helper function for BINOP_ASSIGN. */ |
679 | ||
a88c3c8d | 680 | struct value * |
3634f669 | 681 | eval_opencl_assign (struct type *expect_type, struct expression *exp, |
a88c3c8d | 682 | enum noside noside, enum exp_opcode op, |
3634f669 TT |
683 | struct value *arg1, struct value *arg2) |
684 | { | |
0b2b0b82 | 685 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
3634f669 TT |
686 | return arg1; |
687 | ||
d0c97917 | 688 | struct type *type1 = arg1->type (); |
4b53ca88 | 689 | if (arg1->deprecated_modifiable () |
736355f2 | 690 | && arg1->lval () != lval_internalvar) |
3634f669 TT |
691 | arg2 = opencl_value_cast (type1, arg2); |
692 | ||
693 | return value_assign (arg1, arg2); | |
694 | } | |
695 | ||
33b79214 TT |
696 | namespace expr |
697 | { | |
698 | ||
699 | value * | |
700 | opencl_structop_operation::evaluate (struct type *expect_type, | |
701 | struct expression *exp, | |
702 | enum noside noside) | |
703 | { | |
704 | value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
d0c97917 | 705 | struct type *type1 = check_typedef (arg1->type ()); |
33b79214 TT |
706 | |
707 | if (type1->code () == TYPE_CODE_ARRAY && type1->is_vector ()) | |
708 | return opencl_component_ref (exp, arg1, std::get<1> (m_storage).c_str (), | |
709 | noside); | |
710 | else | |
711 | { | |
158cc4fe | 712 | struct value *v = value_struct_elt (&arg1, {}, |
33b79214 TT |
713 | std::get<1> (m_storage).c_str (), |
714 | NULL, "structure"); | |
715 | ||
716 | if (noside == EVAL_AVOID_SIDE_EFFECTS) | |
736355f2 | 717 | v = value::zero (v->type (), v->lval ()); |
33b79214 TT |
718 | return v; |
719 | } | |
720 | } | |
721 | ||
944fd3b8 TT |
722 | value * |
723 | opencl_logical_binop_operation::evaluate (struct type *expect_type, | |
724 | struct expression *exp, | |
725 | enum noside noside) | |
726 | { | |
727 | enum exp_opcode op = std::get<0> (m_storage); | |
728 | value *arg1 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
729 | ||
730 | /* For scalar operations we need to avoid evaluating operands | |
731 | unnecessarily. However, for vector operations we always need to | |
732 | evaluate both operands. Unfortunately we only know which of the | |
733 | two cases apply after we know the type of the second operand. | |
734 | Therefore we evaluate it once using EVAL_AVOID_SIDE_EFFECTS. */ | |
735 | value *arg2 = std::get<2> (m_storage)->evaluate (nullptr, exp, | |
736 | EVAL_AVOID_SIDE_EFFECTS); | |
d0c97917 TT |
737 | struct type *type1 = check_typedef (arg1->type ()); |
738 | struct type *type2 = check_typedef (arg2->type ()); | |
944fd3b8 TT |
739 | |
740 | if ((type1->code () == TYPE_CODE_ARRAY && type1->is_vector ()) | |
741 | || (type2->code () == TYPE_CODE_ARRAY && type2->is_vector ())) | |
742 | { | |
743 | arg2 = std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
744 | ||
745 | return opencl_relop (nullptr, exp, noside, op, arg1, arg2); | |
746 | } | |
747 | else | |
748 | { | |
749 | /* For scalar built-in types, only evaluate the right | |
750 | hand operand if the left hand operand compares | |
751 | unequal(&&)/equal(||) to 0. */ | |
7ebaa5f7 | 752 | bool tmp = value_logical_not (arg1); |
944fd3b8 TT |
753 | |
754 | if (op == BINOP_LOGICAL_OR) | |
755 | tmp = !tmp; | |
756 | ||
757 | if (!tmp) | |
758 | { | |
759 | arg2 = std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
760 | tmp = value_logical_not (arg2); | |
761 | if (op == BINOP_LOGICAL_OR) | |
762 | tmp = !tmp; | |
763 | } | |
764 | ||
765 | type1 = language_bool_type (exp->language_defn, exp->gdbarch); | |
766 | return value_from_longest (type1, tmp); | |
767 | } | |
768 | } | |
769 | ||
cf12b17f TT |
770 | value * |
771 | opencl_ternop_cond_operation::evaluate (struct type *expect_type, | |
772 | struct expression *exp, | |
773 | enum noside noside) | |
774 | { | |
775 | value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
d0c97917 | 776 | struct type *type1 = check_typedef (arg1->type ()); |
cf12b17f TT |
777 | if (type1->code () == TYPE_CODE_ARRAY && type1->is_vector ()) |
778 | { | |
779 | struct value *arg2, *arg3, *tmp, *ret; | |
780 | struct type *eltype2, *type2, *type3, *eltype3; | |
781 | int t2_is_vec, t3_is_vec, i; | |
782 | LONGEST lowb1, lowb2, lowb3, highb1, highb2, highb3; | |
783 | ||
784 | arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
785 | arg3 = std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
d0c97917 TT |
786 | type2 = check_typedef (arg2->type ()); |
787 | type3 = check_typedef (arg3->type ()); | |
cf12b17f TT |
788 | t2_is_vec |
789 | = type2->code () == TYPE_CODE_ARRAY && type2->is_vector (); | |
790 | t3_is_vec | |
791 | = type3->code () == TYPE_CODE_ARRAY && type3->is_vector (); | |
792 | ||
793 | /* Widen the scalar operand to a vector if necessary. */ | |
794 | if (t2_is_vec || !t3_is_vec) | |
795 | { | |
796 | arg3 = opencl_value_cast (type2, arg3); | |
d0c97917 | 797 | type3 = arg3->type (); |
cf12b17f TT |
798 | } |
799 | else if (!t2_is_vec || t3_is_vec) | |
800 | { | |
801 | arg2 = opencl_value_cast (type3, arg2); | |
d0c97917 | 802 | type2 = arg2->type (); |
cf12b17f TT |
803 | } |
804 | else if (!t2_is_vec || !t3_is_vec) | |
805 | { | |
806 | /* Throw an error if arg2 or arg3 aren't vectors. */ | |
807 | error (_("\ | |
808 | Cannot perform conditional operation on incompatible types")); | |
809 | } | |
810 | ||
27710edb SM |
811 | eltype2 = check_typedef (type2->target_type ()); |
812 | eltype3 = check_typedef (type3->target_type ()); | |
cf12b17f TT |
813 | |
814 | if (!get_array_bounds (type1, &lowb1, &highb1) | |
815 | || !get_array_bounds (type2, &lowb2, &highb2) | |
816 | || !get_array_bounds (type3, &lowb3, &highb3)) | |
817 | error (_("Could not determine the vector bounds")); | |
818 | ||
819 | /* Throw an error if the types of arg2 or arg3 are incompatible. */ | |
820 | if (eltype2->code () != eltype3->code () | |
df86565b | 821 | || eltype2->length () != eltype3->length () |
cf12b17f TT |
822 | || eltype2->is_unsigned () != eltype3->is_unsigned () |
823 | || lowb2 != lowb3 || highb2 != highb3) | |
824 | error (_("\ | |
825 | Cannot perform operation on vectors with different types")); | |
826 | ||
827 | /* Throw an error if the sizes of arg1 and arg2/arg3 differ. */ | |
828 | if (lowb1 != lowb2 || lowb1 != lowb3 | |
829 | || highb1 != highb2 || highb1 != highb3) | |
830 | error (_("\ | |
831 | Cannot perform conditional operation on vectors with different sizes")); | |
832 | ||
317c3ed9 | 833 | ret = value::allocate (type2); |
cf12b17f TT |
834 | |
835 | for (i = 0; i < highb1 - lowb1 + 1; i++) | |
836 | { | |
837 | tmp = value_logical_not (value_subscript (arg1, i)) ? | |
838 | value_subscript (arg3, i) : value_subscript (arg2, i); | |
bbe912ba | 839 | memcpy (ret->contents_writeable ().data () + |
efaf1ae0 | 840 | i * eltype2->length (), tmp->contents_all ().data (), |
df86565b | 841 | eltype2->length ()); |
cf12b17f TT |
842 | } |
843 | ||
844 | return ret; | |
845 | } | |
846 | else | |
847 | { | |
848 | if (value_logical_not (arg1)) | |
849 | return std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
850 | else | |
851 | return std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
852 | } | |
853 | } | |
854 | ||
33b79214 TT |
855 | } /* namespace expr */ |
856 | ||
0874fd07 AB |
857 | /* Class representing the OpenCL language. */ |
858 | ||
859 | class opencl_language : public language_defn | |
860 | { | |
861 | public: | |
862 | opencl_language () | |
0e25e767 | 863 | : language_defn (language_opencl) |
0874fd07 | 864 | { /* Nothing. */ } |
1fb314aa | 865 | |
6f7664a9 AB |
866 | /* See language.h. */ |
867 | ||
868 | const char *name () const override | |
869 | { return "opencl"; } | |
870 | ||
871 | /* See language.h. */ | |
872 | ||
873 | const char *natural_name () const override | |
874 | { return "OpenCL C"; } | |
875 | ||
1fb314aa AB |
876 | /* See language.h. */ |
877 | void language_arch_info (struct gdbarch *gdbarch, | |
878 | struct language_arch_info *lai) const override | |
879 | { | |
7bea47f0 AB |
880 | /* Helper function to allow shorter lines below. */ |
881 | auto add = [&] (struct type * t) -> struct type * | |
882 | { | |
883 | lai->add_primitive_type (t); | |
884 | return t; | |
885 | }; | |
1fb314aa | 886 | |
7bea47f0 AB |
887 | /* Helper macro to create strings. */ |
888 | #define OCL_STRING(S) #S | |
889 | ||
890 | /* This macro allocates and assigns the type struct pointers | |
891 | for the vector types. */ | |
892 | #define BUILD_OCL_VTYPES(TYPE, ELEMENT_TYPE) \ | |
893 | do \ | |
894 | { \ | |
895 | struct type *tmp; \ | |
896 | tmp = add (init_vector_type (ELEMENT_TYPE, 2)); \ | |
897 | tmp->set_name (OCL_STRING(TYPE ## 2)); \ | |
898 | tmp = add (init_vector_type (ELEMENT_TYPE, 3)); \ | |
899 | tmp->set_name (OCL_STRING(TYPE ## 3)); \ | |
df86565b | 900 | tmp->set_length (4 * (ELEMENT_TYPE)->length ()); \ |
7bea47f0 AB |
901 | tmp = add (init_vector_type (ELEMENT_TYPE, 4)); \ |
902 | tmp->set_name (OCL_STRING(TYPE ## 4)); \ | |
903 | tmp = add (init_vector_type (ELEMENT_TYPE, 8)); \ | |
904 | tmp->set_name (OCL_STRING(TYPE ## 8)); \ | |
905 | tmp = init_vector_type (ELEMENT_TYPE, 16); \ | |
906 | tmp->set_name (OCL_STRING(TYPE ## 16)); \ | |
907 | } \ | |
908 | while (false) | |
909 | ||
910 | struct type *el_type, *char_type, *int_type; | |
911 | ||
2d39ccd3 TT |
912 | type_allocator alloc (gdbarch); |
913 | char_type = el_type = add (init_integer_type (alloc, 8, 0, "char")); | |
7bea47f0 | 914 | BUILD_OCL_VTYPES (char, el_type); |
2d39ccd3 | 915 | el_type = add (init_integer_type (alloc, 8, 1, "uchar")); |
7bea47f0 | 916 | BUILD_OCL_VTYPES (uchar, el_type); |
2d39ccd3 | 917 | el_type = add (init_integer_type (alloc, 16, 0, "short")); |
7bea47f0 | 918 | BUILD_OCL_VTYPES (short, el_type); |
2d39ccd3 | 919 | el_type = add (init_integer_type (alloc, 16, 1, "ushort")); |
7bea47f0 | 920 | BUILD_OCL_VTYPES (ushort, el_type); |
2d39ccd3 | 921 | int_type = el_type = add (init_integer_type (alloc, 32, 0, "int")); |
7bea47f0 | 922 | BUILD_OCL_VTYPES (int, el_type); |
2d39ccd3 | 923 | el_type = add (init_integer_type (alloc, 32, 1, "uint")); |
7bea47f0 | 924 | BUILD_OCL_VTYPES (uint, el_type); |
2d39ccd3 | 925 | el_type = add (init_integer_type (alloc, 64, 0, "long")); |
7bea47f0 | 926 | BUILD_OCL_VTYPES (long, el_type); |
2d39ccd3 | 927 | el_type = add (init_integer_type (alloc, 64, 1, "ulong")); |
7bea47f0 | 928 | BUILD_OCL_VTYPES (ulong, el_type); |
77c5f496 | 929 | el_type = add (init_float_type (alloc, 16, "half", floatformats_ieee_half)); |
7bea47f0 | 930 | BUILD_OCL_VTYPES (half, el_type); |
77c5f496 | 931 | el_type = add (init_float_type (alloc, 32, "float", floatformats_ieee_single)); |
7bea47f0 | 932 | BUILD_OCL_VTYPES (float, el_type); |
77c5f496 | 933 | el_type = add (init_float_type (alloc, 64, "double", floatformats_ieee_double)); |
7bea47f0 AB |
934 | BUILD_OCL_VTYPES (double, el_type); |
935 | ||
46c04ea3 | 936 | add (init_boolean_type (alloc, 8, 1, "bool")); |
2d39ccd3 TT |
937 | add (init_integer_type (alloc, 8, 1, "unsigned char")); |
938 | add (init_integer_type (alloc, 16, 1, "unsigned short")); | |
939 | add (init_integer_type (alloc, 32, 1, "unsigned int")); | |
940 | add (init_integer_type (alloc, 64, 1, "unsigned long")); | |
941 | add (init_integer_type (alloc, gdbarch_ptr_bit (gdbarch), 1, "size_t")); | |
942 | add (init_integer_type (alloc, gdbarch_ptr_bit (gdbarch), 0, "ptrdiff_t")); | |
943 | add (init_integer_type (alloc, gdbarch_ptr_bit (gdbarch), 0, "intptr_t")); | |
944 | add (init_integer_type (alloc, gdbarch_ptr_bit (gdbarch), 1, "uintptr_t")); | |
95751990 | 945 | add (builtin_type (gdbarch)->builtin_void); |
1fb314aa AB |
946 | |
947 | /* Type of elements of strings. */ | |
7bea47f0 | 948 | lai->set_string_char_type (char_type); |
1fb314aa AB |
949 | |
950 | /* Specifies the return type of logical and relational operations. */ | |
7bea47f0 | 951 | lai->set_bool_type (int_type, "int"); |
1fb314aa | 952 | } |
fbfb0a46 AB |
953 | |
954 | /* See language.h. */ | |
955 | ||
97e20099 TT |
956 | bool can_print_type_offsets () const override |
957 | { | |
958 | return true; | |
959 | } | |
960 | ||
961 | /* See language.h. */ | |
962 | ||
fbfb0a46 AB |
963 | void print_type (struct type *type, const char *varstring, |
964 | struct ui_file *stream, int show, int level, | |
965 | const struct type_print_options *flags) const override | |
966 | { | |
967 | /* We nearly always defer to C type printing, except that vector types | |
968 | are considered primitive in OpenCL, and should always be printed | |
969 | using their TYPE_NAME. */ | |
970 | if (show > 0) | |
971 | { | |
972 | type = check_typedef (type); | |
bd63c870 | 973 | if (type->code () == TYPE_CODE_ARRAY && type->is_vector () |
fbfb0a46 AB |
974 | && type->name () != NULL) |
975 | show = 0; | |
976 | } | |
977 | ||
1c6fbf42 | 978 | c_print_type (type, varstring, stream, show, level, la_language, flags); |
fbfb0a46 | 979 | } |
1ac14a04 AB |
980 | |
981 | /* See language.h. */ | |
982 | ||
983 | enum macro_expansion macro_expansion () const override | |
984 | { return macro_expansion_c; } | |
0874fd07 AB |
985 | }; |
986 | ||
987 | /* Single instance of the OpenCL language class. */ | |
988 | ||
989 | static opencl_language opencl_language_defn; |