1 /* OpenCL language support for GDB, the GNU debugger.
2 Copyright (C) 2010-2018 Free Software Foundation, Inc.
4 Contributed by Ken Werner <ken.werner@de.ibm.com>.
6 This file is part of GDB.
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.
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.
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/>. */
24 #include "expression.h"
25 #include "parser-defs.h"
30 /* This macro generates enum values from a given type. */
32 #define OCL_P_TYPE(TYPE)\
33 opencl_primitive_type_##TYPE,\
34 opencl_primitive_type_##TYPE##2,\
35 opencl_primitive_type_##TYPE##3,\
36 opencl_primitive_type_##TYPE##4,\
37 opencl_primitive_type_##TYPE##8,\
38 opencl_primitive_type_##TYPE##16
40 enum opencl_primitive_types {
52 opencl_primitive_type_bool,
53 opencl_primitive_type_unsigned_char,
54 opencl_primitive_type_unsigned_short,
55 opencl_primitive_type_unsigned_int,
56 opencl_primitive_type_unsigned_long,
57 opencl_primitive_type_size_t,
58 opencl_primitive_type_ptrdiff_t,
59 opencl_primitive_type_intptr_t,
60 opencl_primitive_type_uintptr_t,
61 opencl_primitive_type_void,
62 nr_opencl_primitive_types
65 static struct gdbarch_data *opencl_type_data;
68 builtin_opencl_type (struct gdbarch *gdbarch)
70 return (struct type **) gdbarch_data (gdbarch, opencl_type_data);
73 /* Returns the corresponding OpenCL vector type from the given type code,
74 the length of the element type, the unsigned flag and the amount of
78 lookup_opencl_vector_type (struct gdbarch *gdbarch, enum type_code code,
79 unsigned int el_length, unsigned int flag_unsigned,
84 struct type *type = NULL;
85 struct type **types = builtin_opencl_type (gdbarch);
87 /* Check if n describes a valid OpenCL vector size (2, 3, 4, 8, 16). */
88 if (n != 2 && n != 3 && n != 4 && n != 8 && n != 16)
89 error (_("Invalid OpenCL vector size: %d"), n);
91 /* Triple vectors have the size of a quad vector. */
92 length = (n == 3) ? el_length * 4 : el_length * n;
94 for (i = 0; i < nr_opencl_primitive_types; i++)
98 if (TYPE_CODE (types[i]) == TYPE_CODE_ARRAY && TYPE_VECTOR (types[i])
99 && get_array_bounds (types[i], &lowb, &highb)
100 && TYPE_CODE (TYPE_TARGET_TYPE (types[i])) == code
101 && TYPE_UNSIGNED (TYPE_TARGET_TYPE (types[i])) == flag_unsigned
102 && TYPE_LENGTH (TYPE_TARGET_TYPE (types[i])) == el_length
103 && TYPE_LENGTH (types[i]) == length
104 && highb - lowb + 1 == n)
114 /* Returns nonzero if the array ARR contains duplicates within
115 the first N elements. */
118 array_has_dups (int *arr, int n)
122 for (i = 0; i < n; i++)
124 for (j = i + 1; j < n; j++)
126 if (arr[i] == arr[j])
134 /* The OpenCL component access syntax allows to create lvalues referring to
135 selected elements of an original OpenCL vector in arbitrary order. This
136 structure holds the information to describe such lvalues. */
140 /* Reference count. */
142 /* The number of indices. */
144 /* The element indices themselves. */
146 /* A pointer to the original value. */
150 /* Allocates an instance of struct lval_closure. */
152 static struct lval_closure *
153 allocate_lval_closure (int *indices, int n, struct value *val)
155 struct lval_closure *c = XCNEW (struct lval_closure);
159 c->indices = XCNEWVEC (int, n);
160 memcpy (c->indices, indices, n * sizeof (int));
161 value_incref (val); /* Increment the reference counter of the value. */
168 lval_func_read (struct value *v)
170 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
171 struct type *type = check_typedef (value_type (v));
172 struct type *eltype = TYPE_TARGET_TYPE (check_typedef (value_type (c->val)));
173 LONGEST offset = value_offset (v);
174 LONGEST elsize = TYPE_LENGTH (eltype);
179 if (TYPE_CODE (type) == TYPE_CODE_ARRAY
180 && !get_array_bounds (type, &lowb, &highb))
181 error (_("Could not determine the vector bounds"));
183 /* Assume elsize aligned offset. */
184 gdb_assert (offset % elsize == 0);
186 n = offset + highb - lowb + 1;
187 gdb_assert (n <= c->n);
189 for (i = offset; i < n; i++)
190 memcpy (value_contents_raw (v) + j++ * elsize,
191 value_contents (c->val) + c->indices[i] * elsize,
196 lval_func_write (struct value *v, struct value *fromval)
198 struct value *mark = value_mark ();
199 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
200 struct type *type = check_typedef (value_type (v));
201 struct type *eltype = TYPE_TARGET_TYPE (check_typedef (value_type (c->val)));
202 LONGEST offset = value_offset (v);
203 LONGEST elsize = TYPE_LENGTH (eltype);
208 if (TYPE_CODE (type) == TYPE_CODE_ARRAY
209 && !get_array_bounds (type, &lowb, &highb))
210 error (_("Could not determine the vector bounds"));
212 /* Assume elsize aligned offset. */
213 gdb_assert (offset % elsize == 0);
215 n = offset + highb - lowb + 1;
217 /* Since accesses to the fourth component of a triple vector is undefined we
218 just skip writes to the fourth element. Imagine something like this:
219 int3 i3 = (int3)(0, 1, 2);
221 In this case n would be 4 (offset=12/4 + 1) while c->n would be 3. */
225 for (i = offset; i < n; i++)
227 struct value *from_elm_val = allocate_value (eltype);
228 struct value *to_elm_val = value_subscript (c->val, c->indices[i]);
230 memcpy (value_contents_writeable (from_elm_val),
231 value_contents (fromval) + j++ * elsize,
233 value_assign (to_elm_val, from_elm_val);
236 value_free_to_mark (mark);
239 /* Return nonzero if bits in V from OFFSET and LENGTH represent a
240 synthetic pointer. */
243 lval_func_check_synthetic_pointer (const struct value *v,
244 LONGEST offset, int length)
246 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
247 /* Size of the target type in bits. */
249 TYPE_LENGTH (TYPE_TARGET_TYPE (check_typedef (value_type (c->val)))) * 8;
250 int startrest = offset % elsize;
251 int start = offset / elsize;
252 int endrest = (offset + length) % elsize;
253 int end = (offset + length) / elsize;
262 for (i = start; i < end; i++)
264 int comp_offset = (i == start) ? startrest : 0;
265 int comp_length = (i == end) ? endrest : elsize;
267 if (!value_bits_synthetic_pointer (c->val,
268 c->indices[i] * elsize + comp_offset,
277 lval_func_copy_closure (const struct value *v)
279 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
287 lval_func_free_closure (struct value *v)
289 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
295 value_decref (c->val); /* Decrement the reference counter of the value. */
301 static const struct lval_funcs opencl_value_funcs =
306 NULL, /* coerce_ref */
307 lval_func_check_synthetic_pointer,
308 lval_func_copy_closure,
309 lval_func_free_closure
312 /* Creates a sub-vector from VAL. The elements are selected by the indices of
313 an array with the length of N. Supported values for NOSIDE are
314 EVAL_NORMAL and EVAL_AVOID_SIDE_EFFECTS. */
316 static struct value *
317 create_value (struct gdbarch *gdbarch, struct value *val, enum noside noside,
320 struct type *type = check_typedef (value_type (val));
321 struct type *elm_type = TYPE_TARGET_TYPE (type);
324 /* Check if a single component of a vector is requested which means
325 the resulting type is a (primitive) scalar type. */
328 if (noside == EVAL_AVOID_SIDE_EFFECTS)
329 ret = value_zero (elm_type, not_lval);
331 ret = value_subscript (val, indices[0]);
335 /* Multiple components of the vector are requested which means the
336 resulting type is a vector as well. */
337 struct type *dst_type =
338 lookup_opencl_vector_type (gdbarch, TYPE_CODE (elm_type),
339 TYPE_LENGTH (elm_type),
340 TYPE_UNSIGNED (elm_type), n);
342 if (dst_type == NULL)
343 dst_type = init_vector_type (elm_type, n);
345 make_cv_type (TYPE_CONST (type), TYPE_VOLATILE (type), dst_type, NULL);
347 if (noside == EVAL_AVOID_SIDE_EFFECTS)
348 ret = allocate_value (dst_type);
351 /* Check whether to create a lvalue or not. */
352 if (VALUE_LVAL (val) != not_lval && !array_has_dups (indices, n))
354 struct lval_closure *c = allocate_lval_closure (indices, n, val);
355 ret = allocate_computed_value (dst_type, &opencl_value_funcs, c);
361 ret = allocate_value (dst_type);
363 /* Copy src val contents into the destination value. */
364 for (i = 0; i < n; i++)
365 memcpy (value_contents_writeable (ret)
366 + (i * TYPE_LENGTH (elm_type)),
368 + (indices[i] * TYPE_LENGTH (elm_type)),
369 TYPE_LENGTH (elm_type));
376 /* OpenCL vector component access. */
378 static struct value *
379 opencl_component_ref (struct expression *exp, struct value *val, char *comps,
388 if (!get_array_bounds (check_typedef (value_type (val)), &lowb, &highb))
389 error (_("Could not determine the vector bounds"));
391 src_len = highb - lowb + 1;
393 /* Throw an error if the amount of array elements does not fit a
394 valid OpenCL vector size (2, 3, 4, 8, 16). */
395 if (src_len != 2 && src_len != 3 && src_len != 4 && src_len != 8
397 error (_("Invalid OpenCL vector size"));
399 if (strcmp (comps, "lo") == 0 )
401 dst_len = (src_len == 3) ? 2 : src_len / 2;
403 for (i = 0; i < dst_len; i++)
406 else if (strcmp (comps, "hi") == 0)
408 dst_len = (src_len == 3) ? 2 : src_len / 2;
410 for (i = 0; i < dst_len; i++)
411 indices[i] = dst_len + i;
413 else if (strcmp (comps, "even") == 0)
415 dst_len = (src_len == 3) ? 2 : src_len / 2;
417 for (i = 0; i < dst_len; i++)
420 else if (strcmp (comps, "odd") == 0)
422 dst_len = (src_len == 3) ? 2 : src_len / 2;
424 for (i = 0; i < dst_len; i++)
427 else if (strncasecmp (comps, "s", 1) == 0)
429 #define HEXCHAR_TO_INT(C) ((C >= '0' && C <= '9') ? \
430 C-'0' : ((C >= 'A' && C <= 'F') ? \
431 C-'A'+10 : ((C >= 'a' && C <= 'f') ? \
434 dst_len = strlen (comps);
435 /* Skip the s/S-prefix. */
438 for (i = 0; i < dst_len; i++)
440 indices[i] = HEXCHAR_TO_INT(comps[i+1]);
441 /* Check if the requested component is invalid or exceeds
443 if (indices[i] < 0 || indices[i] >= src_len)
444 error (_("Invalid OpenCL vector component accessor %s"), comps);
449 dst_len = strlen (comps);
451 for (i = 0; i < dst_len; i++)
464 error (_("Invalid OpenCL vector component accessor %s"), comps);
469 error (_("Invalid OpenCL vector component accessor %s"), comps);
473 error (_("Invalid OpenCL vector component accessor %s"), comps);
479 /* Throw an error if the amount of requested components does not
480 result in a valid length (1, 2, 3, 4, 8, 16). */
481 if (dst_len != 1 && dst_len != 2 && dst_len != 3 && dst_len != 4
482 && dst_len != 8 && dst_len != 16)
483 error (_("Invalid OpenCL vector component accessor %s"), comps);
485 v = create_value (exp->gdbarch, val, noside, indices, dst_len);
490 /* Perform the unary logical not (!) operation. */
492 static struct value *
493 opencl_logical_not (struct expression *exp, struct value *arg)
495 struct type *type = check_typedef (value_type (arg));
496 struct type *rettype;
499 if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type))
501 struct type *eltype = check_typedef (TYPE_TARGET_TYPE (type));
505 if (!get_array_bounds (type, &lowb, &highb))
506 error (_("Could not determine the vector bounds"));
508 /* Determine the resulting type of the operation and allocate the
510 rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT,
511 TYPE_LENGTH (eltype), 0,
513 ret = allocate_value (rettype);
515 for (i = 0; i < highb - lowb + 1; i++)
517 /* For vector types, the unary operator shall return a 0 if the
518 value of its operand compares unequal to 0, and -1 (i.e. all bits
519 set) if the value of its operand compares equal to 0. */
520 int tmp = value_logical_not (value_subscript (arg, i)) ? -1 : 0;
521 memset (value_contents_writeable (ret) + i * TYPE_LENGTH (eltype),
522 tmp, TYPE_LENGTH (eltype));
527 rettype = language_bool_type (exp->language_defn, exp->gdbarch);
528 ret = value_from_longest (rettype, value_logical_not (arg));
534 /* Perform a relational operation on two scalar operands. */
537 scalar_relop (struct value *val1, struct value *val2, enum exp_opcode op)
544 ret = value_equal (val1, val2);
547 ret = !value_equal (val1, val2);
550 ret = value_less (val1, val2);
553 ret = value_less (val2, val1);
556 ret = value_less (val2, val1) || value_equal (val1, val2);
559 ret = value_less (val1, val2) || value_equal (val1, val2);
561 case BINOP_LOGICAL_AND:
562 ret = !value_logical_not (val1) && !value_logical_not (val2);
564 case BINOP_LOGICAL_OR:
565 ret = !value_logical_not (val1) || !value_logical_not (val2);
568 error (_("Attempt to perform an unsupported operation"));
574 /* Perform a relational operation on two vector operands. */
576 static struct value *
577 vector_relop (struct expression *exp, struct value *val1, struct value *val2,
581 struct type *type1, *type2, *eltype1, *eltype2, *rettype;
582 int t1_is_vec, t2_is_vec, i;
583 LONGEST lowb1, lowb2, highb1, highb2;
585 type1 = check_typedef (value_type (val1));
586 type2 = check_typedef (value_type (val2));
588 t1_is_vec = (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1));
589 t2_is_vec = (TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2));
591 if (!t1_is_vec || !t2_is_vec)
592 error (_("Vector operations are not supported on scalar types"));
594 eltype1 = check_typedef (TYPE_TARGET_TYPE (type1));
595 eltype2 = check_typedef (TYPE_TARGET_TYPE (type2));
597 if (!get_array_bounds (type1,&lowb1, &highb1)
598 || !get_array_bounds (type2, &lowb2, &highb2))
599 error (_("Could not determine the vector bounds"));
601 /* Check whether the vector types are compatible. */
602 if (TYPE_CODE (eltype1) != TYPE_CODE (eltype2)
603 || TYPE_LENGTH (eltype1) != TYPE_LENGTH (eltype2)
604 || TYPE_UNSIGNED (eltype1) != TYPE_UNSIGNED (eltype2)
605 || lowb1 != lowb2 || highb1 != highb2)
606 error (_("Cannot perform operation on vectors with different types"));
608 /* Determine the resulting type of the operation and allocate the value. */
609 rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT,
610 TYPE_LENGTH (eltype1), 0,
612 ret = allocate_value (rettype);
614 for (i = 0; i < highb1 - lowb1 + 1; i++)
616 /* For vector types, the relational, equality and logical operators shall
617 return 0 if the specified relation is false and -1 (i.e. all bits set)
618 if the specified relation is true. */
619 int tmp = scalar_relop (value_subscript (val1, i),
620 value_subscript (val2, i), op) ? -1 : 0;
621 memset (value_contents_writeable (ret) + i * TYPE_LENGTH (eltype1),
622 tmp, TYPE_LENGTH (eltype1));
628 /* Perform a cast of ARG into TYPE. There's sadly a lot of duplication in
629 here from valops.c:value_cast, opencl is different only in the
630 behaviour of scalar to vector casting. As far as possibly we're going
631 to try and delegate back to the standard value_cast function. */
633 static struct value *
634 opencl_value_cast (struct type *type, struct value *arg)
636 if (type != value_type (arg))
638 /* Casting scalar to vector is a special case for OpenCL, scalar
639 is cast to element type of vector then replicated into each
640 element of the vector. First though, we need to work out if
641 this is a scalar to vector cast; code lifted from
642 valops.c:value_cast. */
643 enum type_code code1, code2;
644 struct type *to_type;
647 to_type = check_typedef (type);
649 code1 = TYPE_CODE (to_type);
650 code2 = TYPE_CODE (check_typedef (value_type (arg)));
652 if (code2 == TYPE_CODE_REF)
653 code2 = TYPE_CODE (check_typedef (value_type (coerce_ref (arg))));
655 scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_BOOL
656 || code2 == TYPE_CODE_CHAR || code2 == TYPE_CODE_FLT
657 || code2 == TYPE_CODE_DECFLOAT || code2 == TYPE_CODE_ENUM
658 || code2 == TYPE_CODE_RANGE);
660 if (code1 == TYPE_CODE_ARRAY && TYPE_VECTOR (to_type) && scalar)
664 /* Cast to the element type of the vector here as
665 value_vector_widen will error if the scalar value is
666 truncated by the cast. To avoid the error, cast (and
667 possibly truncate) here. */
668 eltype = check_typedef (TYPE_TARGET_TYPE (to_type));
669 arg = value_cast (eltype, arg);
671 return value_vector_widen (arg, type);
674 /* Standard cast handler. */
675 arg = value_cast (type, arg);
680 /* Perform a relational operation on two operands. */
682 static struct value *
683 opencl_relop (struct expression *exp, struct value *arg1, struct value *arg2,
687 struct type *type1 = check_typedef (value_type (arg1));
688 struct type *type2 = check_typedef (value_type (arg2));
689 int t1_is_vec = (TYPE_CODE (type1) == TYPE_CODE_ARRAY
690 && TYPE_VECTOR (type1));
691 int t2_is_vec = (TYPE_CODE (type2) == TYPE_CODE_ARRAY
692 && TYPE_VECTOR (type2));
694 if (!t1_is_vec && !t2_is_vec)
696 int tmp = scalar_relop (arg1, arg2, op);
698 language_bool_type (exp->language_defn, exp->gdbarch);
700 val = value_from_longest (type, tmp);
702 else if (t1_is_vec && t2_is_vec)
704 val = vector_relop (exp, arg1, arg2, op);
708 /* Widen the scalar operand to a vector. */
709 struct value **v = t1_is_vec ? &arg2 : &arg1;
710 struct type *t = t1_is_vec ? type2 : type1;
712 if (TYPE_CODE (t) != TYPE_CODE_FLT && !is_integral_type (t))
713 error (_("Argument to operation not a number or boolean."));
715 *v = opencl_value_cast (t1_is_vec ? type1 : type2, *v);
716 val = vector_relop (exp, arg1, arg2, op);
722 /* Expression evaluator for the OpenCL. Most operations are delegated to
723 evaluate_subexp_standard; see that function for a description of the
726 static struct value *
727 evaluate_subexp_opencl (struct type *expect_type, struct expression *exp,
728 int *pos, enum noside noside)
730 enum exp_opcode op = exp->elts[*pos].opcode;
731 struct value *arg1 = NULL;
732 struct value *arg2 = NULL;
733 struct type *type1, *type2;
737 /* Handle assignment and cast operators to support OpenCL-style
738 scalar-to-vector widening. */
741 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
742 type1 = value_type (arg1);
743 arg2 = evaluate_subexp (type1, exp, pos, noside);
745 if (noside == EVAL_SKIP || noside == EVAL_AVOID_SIDE_EFFECTS)
748 if (deprecated_value_modifiable (arg1)
749 && VALUE_LVAL (arg1) != lval_internalvar)
750 arg2 = opencl_value_cast (type1, arg2);
752 return value_assign (arg1, arg2);
755 type1 = exp->elts[*pos + 1].type;
757 arg1 = evaluate_subexp (type1, exp, pos, noside);
759 if (noside == EVAL_SKIP)
760 return value_from_longest (builtin_type (exp->gdbarch)->
763 return opencl_value_cast (type1, arg1);
767 arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS);
768 type1 = value_type (arg1);
769 arg1 = evaluate_subexp (type1, exp, pos, noside);
771 if (noside == EVAL_SKIP)
772 return value_from_longest (builtin_type (exp->gdbarch)->
775 return opencl_value_cast (type1, arg1);
777 /* Handle binary relational and equality operators that are either not
778 or differently defined for GNU vectors. */
786 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
787 arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside);
789 if (noside == EVAL_SKIP)
790 return value_from_longest (builtin_type (exp->gdbarch)->
793 return opencl_relop (exp, arg1, arg2, op);
795 /* Handle the logical unary operator not(!). */
796 case UNOP_LOGICAL_NOT:
798 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
800 if (noside == EVAL_SKIP)
801 return value_from_longest (builtin_type (exp->gdbarch)->
804 return opencl_logical_not (exp, arg1);
806 /* Handle the logical operator and(&&) and or(||). */
807 case BINOP_LOGICAL_AND:
808 case BINOP_LOGICAL_OR:
810 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
812 if (noside == EVAL_SKIP)
814 evaluate_subexp (NULL_TYPE, exp, pos, noside);
816 return value_from_longest (builtin_type (exp->gdbarch)->
821 /* For scalar operations we need to avoid evaluating operands
822 unecessarily. However, for vector operations we always need to
823 evaluate both operands. Unfortunately we only know which of the
824 two cases apply after we know the type of the second operand.
825 Therefore we evaluate it once using EVAL_AVOID_SIDE_EFFECTS. */
828 arg2 = evaluate_subexp (NULL_TYPE, exp, pos,
829 EVAL_AVOID_SIDE_EFFECTS);
831 type1 = check_typedef (value_type (arg1));
832 type2 = check_typedef (value_type (arg2));
834 if ((TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
835 || (TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2)))
837 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
839 return opencl_relop (exp, arg1, arg2, op);
843 /* For scalar built-in types, only evaluate the right
844 hand operand if the left hand operand compares
845 unequal(&&)/equal(||) to 0. */
847 int tmp = value_logical_not (arg1);
849 if (op == BINOP_LOGICAL_OR)
852 arg2 = evaluate_subexp (NULL_TYPE, exp, pos,
853 tmp ? EVAL_SKIP : noside);
854 type1 = language_bool_type (exp->language_defn, exp->gdbarch);
856 if (op == BINOP_LOGICAL_AND)
857 res = !tmp && !value_logical_not (arg2);
858 else /* BINOP_LOGICAL_OR */
859 res = tmp || !value_logical_not (arg2);
861 return value_from_longest (type1, res);
865 /* Handle the ternary selection operator. */
868 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
869 type1 = check_typedef (value_type (arg1));
870 if (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
872 struct value *arg3, *tmp, *ret;
873 struct type *eltype2, *type3, *eltype3;
874 int t2_is_vec, t3_is_vec, i;
875 LONGEST lowb1, lowb2, lowb3, highb1, highb2, highb3;
877 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
878 arg3 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
879 type2 = check_typedef (value_type (arg2));
880 type3 = check_typedef (value_type (arg3));
882 = TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2);
884 = TYPE_CODE (type3) == TYPE_CODE_ARRAY && TYPE_VECTOR (type3);
886 /* Widen the scalar operand to a vector if necessary. */
887 if (t2_is_vec || !t3_is_vec)
889 arg3 = opencl_value_cast (type2, arg3);
890 type3 = value_type (arg3);
892 else if (!t2_is_vec || t3_is_vec)
894 arg2 = opencl_value_cast (type3, arg2);
895 type2 = value_type (arg2);
897 else if (!t2_is_vec || !t3_is_vec)
899 /* Throw an error if arg2 or arg3 aren't vectors. */
901 Cannot perform conditional operation on incompatible types"));
904 eltype2 = check_typedef (TYPE_TARGET_TYPE (type2));
905 eltype3 = check_typedef (TYPE_TARGET_TYPE (type3));
907 if (!get_array_bounds (type1, &lowb1, &highb1)
908 || !get_array_bounds (type2, &lowb2, &highb2)
909 || !get_array_bounds (type3, &lowb3, &highb3))
910 error (_("Could not determine the vector bounds"));
912 /* Throw an error if the types of arg2 or arg3 are incompatible. */
913 if (TYPE_CODE (eltype2) != TYPE_CODE (eltype3)
914 || TYPE_LENGTH (eltype2) != TYPE_LENGTH (eltype3)
915 || TYPE_UNSIGNED (eltype2) != TYPE_UNSIGNED (eltype3)
916 || lowb2 != lowb3 || highb2 != highb3)
918 Cannot perform operation on vectors with different types"));
920 /* Throw an error if the sizes of arg1 and arg2/arg3 differ. */
921 if (lowb1 != lowb2 || lowb1 != lowb3
922 || highb1 != highb2 || highb1 != highb3)
924 Cannot perform conditional operation on vectors with different sizes"));
926 ret = allocate_value (type2);
928 for (i = 0; i < highb1 - lowb1 + 1; i++)
930 tmp = value_logical_not (value_subscript (arg1, i)) ?
931 value_subscript (arg3, i) : value_subscript (arg2, i);
932 memcpy (value_contents_writeable (ret) +
933 i * TYPE_LENGTH (eltype2), value_contents_all (tmp),
934 TYPE_LENGTH (eltype2));
941 if (value_logical_not (arg1))
943 /* Skip the second operand. */
944 evaluate_subexp (NULL_TYPE, exp, pos, EVAL_SKIP);
946 return evaluate_subexp (NULL_TYPE, exp, pos, noside);
950 /* Skip the third operand. */
951 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
952 evaluate_subexp (NULL_TYPE, exp, pos, EVAL_SKIP);
958 /* Handle STRUCTOP_STRUCT to allow component access on OpenCL vectors. */
959 case STRUCTOP_STRUCT:
962 int tem = longest_to_int (exp->elts[pc + 1].longconst);
964 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
965 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
966 type1 = check_typedef (value_type (arg1));
968 if (noside == EVAL_SKIP)
970 return value_from_longest (builtin_type (exp->gdbarch)->
973 else if (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
975 return opencl_component_ref (exp, arg1, &exp->elts[pc + 2].string,
980 struct value *v = value_struct_elt (&arg1, NULL,
981 &exp->elts[pc + 2].string, NULL,
984 if (noside == EVAL_AVOID_SIDE_EFFECTS)
985 v = value_zero (value_type (v), VALUE_LVAL (v));
993 return evaluate_subexp_c (expect_type, exp, pos, noside);
996 /* Print OpenCL types. */
999 opencl_print_type (struct type *type, const char *varstring,
1000 struct ui_file *stream, int show, int level,
1001 const struct type_print_options *flags)
1003 /* We nearly always defer to C type printing, except that vector
1004 types are considered primitive in OpenCL, and should always
1005 be printed using their TYPE_NAME. */
1008 type = check_typedef (type);
1009 if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type)
1010 && TYPE_NAME (type) != NULL)
1014 c_print_type (type, varstring, stream, show, level, flags);
1018 opencl_language_arch_info (struct gdbarch *gdbarch,
1019 struct language_arch_info *lai)
1021 struct type **types = builtin_opencl_type (gdbarch);
1023 /* Copy primitive types vector from gdbarch. */
1024 lai->primitive_type_vector = types;
1026 /* Type of elements of strings. */
1027 lai->string_char_type = types [opencl_primitive_type_char];
1029 /* Specifies the return type of logical and relational operations. */
1030 lai->bool_type_symbol = "int";
1031 lai->bool_type_default = types [opencl_primitive_type_int];
1034 const struct exp_descriptor exp_descriptor_opencl =
1036 print_subexp_standard,
1037 operator_length_standard,
1038 operator_check_standard,
1040 dump_subexp_body_standard,
1041 evaluate_subexp_opencl
1044 extern const struct language_defn opencl_language_defn =
1046 "opencl", /* Language name */
1054 &exp_descriptor_opencl,
1057 c_printchar, /* Print a character constant */
1058 c_printstr, /* Function to print string constant */
1059 c_emit_char, /* Print a single char */
1060 opencl_print_type, /* Print a type using appropriate syntax */
1061 c_print_typedef, /* Print a typedef using appropriate syntax */
1062 c_val_print, /* Print a value using appropriate syntax */
1063 c_value_print, /* Print a top-level value */
1064 default_read_var_value, /* la_read_var_value */
1065 NULL, /* Language specific skip_trampoline */
1066 NULL, /* name_of_this */
1067 false, /* la_store_sym_names_in_linkage_form_p */
1068 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1069 basic_lookup_transparent_type,/* lookup_transparent_type */
1070 NULL, /* Language specific symbol demangler */
1072 NULL, /* Language specific
1073 class_name_from_physname */
1074 c_op_print_tab, /* expression operators for printing */
1075 1, /* c-style arrays */
1076 0, /* String lower bound */
1077 default_word_break_characters,
1078 default_collect_symbol_completion_matches,
1079 opencl_language_arch_info,
1080 default_print_array_index,
1081 default_pass_by_reference,
1083 c_watch_location_expression,
1084 NULL, /* la_get_symbol_name_matcher */
1085 iterate_over_symbols,
1086 default_search_name_hash,
1087 &default_varobj_ops,
1094 build_opencl_types (struct gdbarch *gdbarch)
1097 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_opencl_primitive_types + 1,
1100 /* Helper macro to create strings. */
1101 #define OCL_STRING(S) #S
1102 /* This macro allocates and assigns the type struct pointers
1103 for the vector types. */
1104 #define BUILD_OCL_VTYPES(TYPE)\
1105 types[opencl_primitive_type_##TYPE##2] \
1106 = init_vector_type (types[opencl_primitive_type_##TYPE], 2); \
1107 TYPE_NAME (types[opencl_primitive_type_##TYPE##2]) = OCL_STRING(TYPE ## 2); \
1108 types[opencl_primitive_type_##TYPE##3] \
1109 = init_vector_type (types[opencl_primitive_type_##TYPE], 3); \
1110 TYPE_NAME (types[opencl_primitive_type_##TYPE##3]) = OCL_STRING(TYPE ## 3); \
1111 TYPE_LENGTH (types[opencl_primitive_type_##TYPE##3]) \
1112 = 4 * TYPE_LENGTH (types[opencl_primitive_type_##TYPE]); \
1113 types[opencl_primitive_type_##TYPE##4] \
1114 = init_vector_type (types[opencl_primitive_type_##TYPE], 4); \
1115 TYPE_NAME (types[opencl_primitive_type_##TYPE##4]) = OCL_STRING(TYPE ## 4); \
1116 types[opencl_primitive_type_##TYPE##8] \
1117 = init_vector_type (types[opencl_primitive_type_##TYPE], 8); \
1118 TYPE_NAME (types[opencl_primitive_type_##TYPE##8]) = OCL_STRING(TYPE ## 8); \
1119 types[opencl_primitive_type_##TYPE##16] \
1120 = init_vector_type (types[opencl_primitive_type_##TYPE], 16); \
1121 TYPE_NAME (types[opencl_primitive_type_##TYPE##16]) = OCL_STRING(TYPE ## 16)
1123 types[opencl_primitive_type_char]
1124 = arch_integer_type (gdbarch, 8, 0, "char");
1125 BUILD_OCL_VTYPES (char);
1126 types[opencl_primitive_type_uchar]
1127 = arch_integer_type (gdbarch, 8, 1, "uchar");
1128 BUILD_OCL_VTYPES (uchar);
1129 types[opencl_primitive_type_short]
1130 = arch_integer_type (gdbarch, 16, 0, "short");
1131 BUILD_OCL_VTYPES (short);
1132 types[opencl_primitive_type_ushort]
1133 = arch_integer_type (gdbarch, 16, 1, "ushort");
1134 BUILD_OCL_VTYPES (ushort);
1135 types[opencl_primitive_type_int]
1136 = arch_integer_type (gdbarch, 32, 0, "int");
1137 BUILD_OCL_VTYPES (int);
1138 types[opencl_primitive_type_uint]
1139 = arch_integer_type (gdbarch, 32, 1, "uint");
1140 BUILD_OCL_VTYPES (uint);
1141 types[opencl_primitive_type_long]
1142 = arch_integer_type (gdbarch, 64, 0, "long");
1143 BUILD_OCL_VTYPES (long);
1144 types[opencl_primitive_type_ulong]
1145 = arch_integer_type (gdbarch, 64, 1, "ulong");
1146 BUILD_OCL_VTYPES (ulong);
1147 types[opencl_primitive_type_half]
1148 = arch_float_type (gdbarch, 16, "half", floatformats_ieee_half);
1149 BUILD_OCL_VTYPES (half);
1150 types[opencl_primitive_type_float]
1151 = arch_float_type (gdbarch, 32, "float", floatformats_ieee_single);
1152 BUILD_OCL_VTYPES (float);
1153 types[opencl_primitive_type_double]
1154 = arch_float_type (gdbarch, 64, "double", floatformats_ieee_double);
1155 BUILD_OCL_VTYPES (double);
1156 types[opencl_primitive_type_bool]
1157 = arch_boolean_type (gdbarch, 8, 1, "bool");
1158 types[opencl_primitive_type_unsigned_char]
1159 = arch_integer_type (gdbarch, 8, 1, "unsigned char");
1160 types[opencl_primitive_type_unsigned_short]
1161 = arch_integer_type (gdbarch, 16, 1, "unsigned short");
1162 types[opencl_primitive_type_unsigned_int]
1163 = arch_integer_type (gdbarch, 32, 1, "unsigned int");
1164 types[opencl_primitive_type_unsigned_long]
1165 = arch_integer_type (gdbarch, 64, 1, "unsigned long");
1166 types[opencl_primitive_type_size_t]
1167 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 1, "size_t");
1168 types[opencl_primitive_type_ptrdiff_t]
1169 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 0, "ptrdiff_t");
1170 types[opencl_primitive_type_intptr_t]
1171 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 0, "intptr_t");
1172 types[opencl_primitive_type_uintptr_t]
1173 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 1, "uintptr_t");
1174 types[opencl_primitive_type_void]
1175 = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
1181 _initialize_opencl_language (void)
1183 opencl_type_data = gdbarch_data_register_post_init (build_opencl_types);