1 /* OpenCL language support for GDB, the GNU debugger.
2 Copyright (C) 2010-2014 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/>. */
25 #include "expression.h"
26 #include "parser-defs.h"
31 extern void _initialize_opencl_language (void);
33 /* This macro generates enum values from a given type. */
35 #define OCL_P_TYPE(TYPE)\
36 opencl_primitive_type_##TYPE,\
37 opencl_primitive_type_##TYPE##2,\
38 opencl_primitive_type_##TYPE##3,\
39 opencl_primitive_type_##TYPE##4,\
40 opencl_primitive_type_##TYPE##8,\
41 opencl_primitive_type_##TYPE##16
43 enum opencl_primitive_types {
55 opencl_primitive_type_bool,
56 opencl_primitive_type_unsigned_char,
57 opencl_primitive_type_unsigned_short,
58 opencl_primitive_type_unsigned_int,
59 opencl_primitive_type_unsigned_long,
60 opencl_primitive_type_size_t,
61 opencl_primitive_type_ptrdiff_t,
62 opencl_primitive_type_intptr_t,
63 opencl_primitive_type_uintptr_t,
64 opencl_primitive_type_void,
65 nr_opencl_primitive_types
68 static struct gdbarch_data *opencl_type_data;
71 builtin_opencl_type (struct gdbarch *gdbarch)
73 return gdbarch_data (gdbarch, opencl_type_data);
76 /* Returns the corresponding OpenCL vector type from the given type code,
77 the length of the element type, the unsigned flag and the amount of
81 lookup_opencl_vector_type (struct gdbarch *gdbarch, enum type_code code,
82 unsigned int el_length, unsigned int flag_unsigned,
87 struct type *type = NULL;
88 struct type **types = builtin_opencl_type (gdbarch);
90 /* Check if n describes a valid OpenCL vector size (2, 3, 4, 8, 16). */
91 if (n != 2 && n != 3 && n != 4 && n != 8 && n != 16)
92 error (_("Invalid OpenCL vector size: %d"), n);
94 /* Triple vectors have the size of a quad vector. */
95 length = (n == 3) ? el_length * 4 : el_length * n;
97 for (i = 0; i < nr_opencl_primitive_types; i++)
101 if (TYPE_CODE (types[i]) == TYPE_CODE_ARRAY && TYPE_VECTOR (types[i])
102 && get_array_bounds (types[i], &lowb, &highb)
103 && TYPE_CODE (TYPE_TARGET_TYPE (types[i])) == code
104 && TYPE_UNSIGNED (TYPE_TARGET_TYPE (types[i])) == flag_unsigned
105 && TYPE_LENGTH (TYPE_TARGET_TYPE (types[i])) == el_length
106 && TYPE_LENGTH (types[i]) == length
107 && highb - lowb + 1 == n)
117 /* Returns nonzero if the array ARR contains duplicates within
118 the first N elements. */
121 array_has_dups (int *arr, int n)
125 for (i = 0; i < n; i++)
127 for (j = i + 1; j < n; j++)
129 if (arr[i] == arr[j])
137 /* The OpenCL component access syntax allows to create lvalues referring to
138 selected elements of an original OpenCL vector in arbitrary order. This
139 structure holds the information to describe such lvalues. */
143 /* Reference count. */
145 /* The number of indices. */
147 /* The element indices themselves. */
149 /* A pointer to the original value. */
153 /* Allocates an instance of struct lval_closure. */
155 static struct lval_closure *
156 allocate_lval_closure (int *indices, int n, struct value *val)
158 struct lval_closure *c = XCNEW (struct lval_closure);
162 c->indices = XCNEWVEC (int, n);
163 memcpy (c->indices, indices, n * sizeof (int));
164 value_incref (val); /* Increment the reference counter of the value. */
171 lval_func_read (struct value *v)
173 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
174 struct type *type = check_typedef (value_type (v));
175 struct type *eltype = TYPE_TARGET_TYPE (check_typedef (value_type (c->val)));
176 int offset = value_offset (v);
177 int elsize = TYPE_LENGTH (eltype);
182 if (TYPE_CODE (type) == TYPE_CODE_ARRAY
183 && !get_array_bounds (type, &lowb, &highb))
184 error (_("Could not determine the vector bounds"));
186 /* Assume elsize aligned offset. */
187 gdb_assert (offset % elsize == 0);
189 n = offset + highb - lowb + 1;
190 gdb_assert (n <= c->n);
192 for (i = offset; i < n; i++)
193 memcpy (value_contents_raw (v) + j++ * elsize,
194 value_contents (c->val) + c->indices[i] * elsize,
199 lval_func_write (struct value *v, struct value *fromval)
201 struct value *mark = value_mark ();
202 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
203 struct type *type = check_typedef (value_type (v));
204 struct type *eltype = TYPE_TARGET_TYPE (check_typedef (value_type (c->val)));
205 int offset = value_offset (v);
206 int elsize = TYPE_LENGTH (eltype);
211 if (TYPE_CODE (type) == TYPE_CODE_ARRAY
212 && !get_array_bounds (type, &lowb, &highb))
213 error (_("Could not determine the vector bounds"));
215 /* Assume elsize aligned offset. */
216 gdb_assert (offset % elsize == 0);
218 n = offset + highb - lowb + 1;
220 /* Since accesses to the fourth component of a triple vector is undefined we
221 just skip writes to the fourth element. Imagine something like this:
222 int3 i3 = (int3)(0, 1, 2);
224 In this case n would be 4 (offset=12/4 + 1) while c->n would be 3. */
228 for (i = offset; i < n; i++)
230 struct value *from_elm_val = allocate_value (eltype);
231 struct value *to_elm_val = value_subscript (c->val, c->indices[i]);
233 memcpy (value_contents_writeable (from_elm_val),
234 value_contents (fromval) + j++ * elsize,
236 value_assign (to_elm_val, from_elm_val);
239 value_free_to_mark (mark);
242 /* Return nonzero if all bits in V within OFFSET and LENGTH are valid. */
245 lval_func_check_validity (const struct value *v, int offset, int length)
247 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
248 /* Size of the target type in bits. */
250 TYPE_LENGTH (TYPE_TARGET_TYPE (check_typedef (value_type (c->val)))) * 8;
251 int startrest = offset % elsize;
252 int start = offset / elsize;
253 int endrest = (offset + length) % elsize;
254 int end = (offset + length) / elsize;
263 for (i = start; i < end; i++)
265 int comp_offset = (i == start) ? startrest : 0;
266 int comp_length = (i == end) ? endrest : elsize;
268 if (!value_bits_valid (c->val, c->indices[i] * elsize + comp_offset,
276 /* Return nonzero if any bit in V is valid. */
279 lval_func_check_any_valid (const struct value *v)
281 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
282 /* Size of the target type in bits. */
284 TYPE_LENGTH (TYPE_TARGET_TYPE (check_typedef (value_type (c->val)))) * 8;
287 for (i = 0; i < c->n; i++)
288 if (value_bits_valid (c->val, c->indices[i] * elsize, elsize))
294 /* Return nonzero if bits in V from OFFSET and LENGTH represent a
295 synthetic pointer. */
298 lval_func_check_synthetic_pointer (const struct value *v,
299 int offset, int length)
301 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
302 /* Size of the target type in bits. */
304 TYPE_LENGTH (TYPE_TARGET_TYPE (check_typedef (value_type (c->val)))) * 8;
305 int startrest = offset % elsize;
306 int start = offset / elsize;
307 int endrest = (offset + length) % elsize;
308 int end = (offset + length) / elsize;
317 for (i = start; i < end; i++)
319 int comp_offset = (i == start) ? startrest : 0;
320 int comp_length = (i == end) ? endrest : elsize;
322 if (!value_bits_synthetic_pointer (c->val,
323 c->indices[i] * elsize + comp_offset,
332 lval_func_copy_closure (const struct value *v)
334 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
342 lval_func_free_closure (struct value *v)
344 struct lval_closure *c = (struct lval_closure *) value_computed_closure (v);
350 value_free (c->val); /* Decrement the reference counter of the value. */
356 static const struct lval_funcs opencl_value_funcs =
360 lval_func_check_validity,
361 lval_func_check_any_valid,
363 NULL, /* coerce_ref */
364 lval_func_check_synthetic_pointer,
365 lval_func_copy_closure,
366 lval_func_free_closure
369 /* Creates a sub-vector from VAL. The elements are selected by the indices of
370 an array with the length of N. Supported values for NOSIDE are
371 EVAL_NORMAL and EVAL_AVOID_SIDE_EFFECTS. */
373 static struct value *
374 create_value (struct gdbarch *gdbarch, struct value *val, enum noside noside,
377 struct type *type = check_typedef (value_type (val));
378 struct type *elm_type = TYPE_TARGET_TYPE (type);
381 /* Check if a single component of a vector is requested which means
382 the resulting type is a (primitive) scalar type. */
385 if (noside == EVAL_AVOID_SIDE_EFFECTS)
386 ret = value_zero (elm_type, not_lval);
388 ret = value_subscript (val, indices[0]);
392 /* Multiple components of the vector are requested which means the
393 resulting type is a vector as well. */
394 struct type *dst_type =
395 lookup_opencl_vector_type (gdbarch, TYPE_CODE (elm_type),
396 TYPE_LENGTH (elm_type),
397 TYPE_UNSIGNED (elm_type), n);
399 if (dst_type == NULL)
400 dst_type = init_vector_type (elm_type, n);
402 make_cv_type (TYPE_CONST (type), TYPE_VOLATILE (type), dst_type, NULL);
404 if (noside == EVAL_AVOID_SIDE_EFFECTS)
405 ret = allocate_value (dst_type);
408 /* Check whether to create a lvalue or not. */
409 if (VALUE_LVAL (val) != not_lval && !array_has_dups (indices, n))
411 struct lval_closure *c = allocate_lval_closure (indices, n, val);
412 ret = allocate_computed_value (dst_type, &opencl_value_funcs, c);
418 ret = allocate_value (dst_type);
420 /* Copy src val contents into the destination value. */
421 for (i = 0; i < n; i++)
422 memcpy (value_contents_writeable (ret)
423 + (i * TYPE_LENGTH (elm_type)),
425 + (indices[i] * TYPE_LENGTH (elm_type)),
426 TYPE_LENGTH (elm_type));
433 /* OpenCL vector component access. */
435 static struct value *
436 opencl_component_ref (struct expression *exp, struct value *val, char *comps,
445 if (!get_array_bounds (check_typedef (value_type (val)), &lowb, &highb))
446 error (_("Could not determine the vector bounds"));
448 src_len = highb - lowb + 1;
450 /* Throw an error if the amount of array elements does not fit a
451 valid OpenCL vector size (2, 3, 4, 8, 16). */
452 if (src_len != 2 && src_len != 3 && src_len != 4 && src_len != 8
454 error (_("Invalid OpenCL vector size"));
456 if (strcmp (comps, "lo") == 0 )
458 dst_len = (src_len == 3) ? 2 : src_len / 2;
460 for (i = 0; i < dst_len; i++)
463 else if (strcmp (comps, "hi") == 0)
465 dst_len = (src_len == 3) ? 2 : src_len / 2;
467 for (i = 0; i < dst_len; i++)
468 indices[i] = dst_len + i;
470 else if (strcmp (comps, "even") == 0)
472 dst_len = (src_len == 3) ? 2 : src_len / 2;
474 for (i = 0; i < dst_len; i++)
477 else if (strcmp (comps, "odd") == 0)
479 dst_len = (src_len == 3) ? 2 : src_len / 2;
481 for (i = 0; i < dst_len; i++)
484 else if (strncasecmp (comps, "s", 1) == 0)
486 #define HEXCHAR_TO_INT(C) ((C >= '0' && C <= '9') ? \
487 C-'0' : ((C >= 'A' && C <= 'F') ? \
488 C-'A'+10 : ((C >= 'a' && C <= 'f') ? \
491 dst_len = strlen (comps);
492 /* Skip the s/S-prefix. */
495 for (i = 0; i < dst_len; i++)
497 indices[i] = HEXCHAR_TO_INT(comps[i+1]);
498 /* Check if the requested component is invalid or exceeds
500 if (indices[i] < 0 || indices[i] >= src_len)
501 error (_("Invalid OpenCL vector component accessor %s"), comps);
506 dst_len = strlen (comps);
508 for (i = 0; i < dst_len; i++)
521 error (_("Invalid OpenCL vector component accessor %s"), comps);
526 error (_("Invalid OpenCL vector component accessor %s"), comps);
530 error (_("Invalid OpenCL vector component accessor %s"), comps);
536 /* Throw an error if the amount of requested components does not
537 result in a valid length (1, 2, 3, 4, 8, 16). */
538 if (dst_len != 1 && dst_len != 2 && dst_len != 3 && dst_len != 4
539 && dst_len != 8 && dst_len != 16)
540 error (_("Invalid OpenCL vector component accessor %s"), comps);
542 v = create_value (exp->gdbarch, val, noside, indices, dst_len);
547 /* Perform the unary logical not (!) operation. */
549 static struct value *
550 opencl_logical_not (struct expression *exp, struct value *arg)
552 struct type *type = check_typedef (value_type (arg));
553 struct type *rettype;
556 if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type))
558 struct type *eltype = check_typedef (TYPE_TARGET_TYPE (type));
562 if (!get_array_bounds (type, &lowb, &highb))
563 error (_("Could not determine the vector bounds"));
565 /* Determine the resulting type of the operation and allocate the
567 rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT,
568 TYPE_LENGTH (eltype), 0,
570 ret = allocate_value (rettype);
572 for (i = 0; i < highb - lowb + 1; i++)
574 /* For vector types, the unary operator shall return a 0 if the
575 value of its operand compares unequal to 0, and -1 (i.e. all bits
576 set) if the value of its operand compares equal to 0. */
577 int tmp = value_logical_not (value_subscript (arg, i)) ? -1 : 0;
578 memset (value_contents_writeable (ret) + i * TYPE_LENGTH (eltype),
579 tmp, TYPE_LENGTH (eltype));
584 rettype = language_bool_type (exp->language_defn, exp->gdbarch);
585 ret = value_from_longest (rettype, value_logical_not (arg));
591 /* Perform a relational operation on two scalar operands. */
594 scalar_relop (struct value *val1, struct value *val2, enum exp_opcode op)
601 ret = value_equal (val1, val2);
604 ret = !value_equal (val1, val2);
607 ret = value_less (val1, val2);
610 ret = value_less (val2, val1);
613 ret = value_less (val2, val1) || value_equal (val1, val2);
616 ret = value_less (val1, val2) || value_equal (val1, val2);
618 case BINOP_LOGICAL_AND:
619 ret = !value_logical_not (val1) && !value_logical_not (val2);
621 case BINOP_LOGICAL_OR:
622 ret = !value_logical_not (val1) || !value_logical_not (val2);
625 error (_("Attempt to perform an unsupported operation"));
631 /* Perform a relational operation on two vector operands. */
633 static struct value *
634 vector_relop (struct expression *exp, struct value *val1, struct value *val2,
638 struct type *type1, *type2, *eltype1, *eltype2, *rettype;
639 int t1_is_vec, t2_is_vec, i;
640 LONGEST lowb1, lowb2, highb1, highb2;
642 type1 = check_typedef (value_type (val1));
643 type2 = check_typedef (value_type (val2));
645 t1_is_vec = (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1));
646 t2_is_vec = (TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2));
648 if (!t1_is_vec || !t2_is_vec)
649 error (_("Vector operations are not supported on scalar types"));
651 eltype1 = check_typedef (TYPE_TARGET_TYPE (type1));
652 eltype2 = check_typedef (TYPE_TARGET_TYPE (type2));
654 if (!get_array_bounds (type1,&lowb1, &highb1)
655 || !get_array_bounds (type2, &lowb2, &highb2))
656 error (_("Could not determine the vector bounds"));
658 /* Check whether the vector types are compatible. */
659 if (TYPE_CODE (eltype1) != TYPE_CODE (eltype2)
660 || TYPE_LENGTH (eltype1) != TYPE_LENGTH (eltype2)
661 || TYPE_UNSIGNED (eltype1) != TYPE_UNSIGNED (eltype2)
662 || lowb1 != lowb2 || highb1 != highb2)
663 error (_("Cannot perform operation on vectors with different types"));
665 /* Determine the resulting type of the operation and allocate the value. */
666 rettype = lookup_opencl_vector_type (exp->gdbarch, TYPE_CODE_INT,
667 TYPE_LENGTH (eltype1), 0,
669 ret = allocate_value (rettype);
671 for (i = 0; i < highb1 - lowb1 + 1; i++)
673 /* For vector types, the relational, equality and logical operators shall
674 return 0 if the specified relation is false and -1 (i.e. all bits set)
675 if the specified relation is true. */
676 int tmp = scalar_relop (value_subscript (val1, i),
677 value_subscript (val2, i), op) ? -1 : 0;
678 memset (value_contents_writeable (ret) + i * TYPE_LENGTH (eltype1),
679 tmp, TYPE_LENGTH (eltype1));
685 /* Perform a cast of ARG into TYPE. There's sadly a lot of duplication in
686 here from valops.c:value_cast, opencl is different only in the
687 behaviour of scalar to vector casting. As far as possibly we're going
688 to try and delegate back to the standard value_cast function. */
690 static struct value *
691 opencl_value_cast (struct type *type, struct value *arg)
693 if (type != value_type (arg))
695 /* Casting scalar to vector is a special case for OpenCL, scalar
696 is cast to element type of vector then replicated into each
697 element of the vector. First though, we need to work out if
698 this is a scalar to vector cast; code lifted from
699 valops.c:value_cast. */
700 enum type_code code1, code2;
701 struct type *to_type;
704 to_type = check_typedef (type);
706 code1 = TYPE_CODE (to_type);
707 code2 = TYPE_CODE (check_typedef (value_type (arg)));
709 if (code2 == TYPE_CODE_REF)
710 code2 = TYPE_CODE (check_typedef (value_type (coerce_ref (arg))));
712 scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_BOOL
713 || code2 == TYPE_CODE_CHAR || code2 == TYPE_CODE_FLT
714 || code2 == TYPE_CODE_DECFLOAT || code2 == TYPE_CODE_ENUM
715 || code2 == TYPE_CODE_RANGE);
717 if (code1 == TYPE_CODE_ARRAY && TYPE_VECTOR (to_type) && scalar)
721 /* Cast to the element type of the vector here as
722 value_vector_widen will error if the scalar value is
723 truncated by the cast. To avoid the error, cast (and
724 possibly truncate) here. */
725 eltype = check_typedef (TYPE_TARGET_TYPE (to_type));
726 arg = value_cast (eltype, arg);
728 return value_vector_widen (arg, type);
731 /* Standard cast handler. */
732 arg = value_cast (type, arg);
737 /* Perform a relational operation on two operands. */
739 static struct value *
740 opencl_relop (struct expression *exp, struct value *arg1, struct value *arg2,
744 struct type *type1 = check_typedef (value_type (arg1));
745 struct type *type2 = check_typedef (value_type (arg2));
746 int t1_is_vec = (TYPE_CODE (type1) == TYPE_CODE_ARRAY
747 && TYPE_VECTOR (type1));
748 int t2_is_vec = (TYPE_CODE (type2) == TYPE_CODE_ARRAY
749 && TYPE_VECTOR (type2));
751 if (!t1_is_vec && !t2_is_vec)
753 int tmp = scalar_relop (arg1, arg2, op);
755 language_bool_type (exp->language_defn, exp->gdbarch);
757 val = value_from_longest (type, tmp);
759 else if (t1_is_vec && t2_is_vec)
761 val = vector_relop (exp, arg1, arg2, op);
765 /* Widen the scalar operand to a vector. */
766 struct value **v = t1_is_vec ? &arg2 : &arg1;
767 struct type *t = t1_is_vec ? type2 : type1;
769 if (TYPE_CODE (t) != TYPE_CODE_FLT && !is_integral_type (t))
770 error (_("Argument to operation not a number or boolean."));
772 *v = opencl_value_cast (t1_is_vec ? type1 : type2, *v);
773 val = vector_relop (exp, arg1, arg2, op);
779 /* Expression evaluator for the OpenCL. Most operations are delegated to
780 evaluate_subexp_standard; see that function for a description of the
783 static struct value *
784 evaluate_subexp_opencl (struct type *expect_type, struct expression *exp,
785 int *pos, enum noside noside)
787 enum exp_opcode op = exp->elts[*pos].opcode;
788 struct value *arg1 = NULL;
789 struct value *arg2 = NULL;
790 struct type *type1, *type2;
794 /* Handle assignment and cast operators to support OpenCL-style
795 scalar-to-vector widening. */
798 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
799 type1 = value_type (arg1);
800 arg2 = evaluate_subexp (type1, exp, pos, noside);
802 if (noside == EVAL_SKIP || noside == EVAL_AVOID_SIDE_EFFECTS)
805 if (deprecated_value_modifiable (arg1)
806 && VALUE_LVAL (arg1) != lval_internalvar)
807 arg2 = opencl_value_cast (type1, arg2);
809 return value_assign (arg1, arg2);
812 type1 = exp->elts[*pos + 1].type;
814 arg1 = evaluate_subexp (type1, exp, pos, noside);
816 if (noside == EVAL_SKIP)
817 return value_from_longest (builtin_type (exp->gdbarch)->
820 return opencl_value_cast (type1, arg1);
824 arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS);
825 type1 = value_type (arg1);
826 arg1 = evaluate_subexp (type1, exp, pos, noside);
828 if (noside == EVAL_SKIP)
829 return value_from_longest (builtin_type (exp->gdbarch)->
832 return opencl_value_cast (type1, arg1);
834 /* Handle binary relational and equality operators that are either not
835 or differently defined for GNU vectors. */
843 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
844 arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside);
846 if (noside == EVAL_SKIP)
847 return value_from_longest (builtin_type (exp->gdbarch)->
850 return opencl_relop (exp, arg1, arg2, op);
852 /* Handle the logical unary operator not(!). */
853 case UNOP_LOGICAL_NOT:
855 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
857 if (noside == EVAL_SKIP)
858 return value_from_longest (builtin_type (exp->gdbarch)->
861 return opencl_logical_not (exp, arg1);
863 /* Handle the logical operator and(&&) and or(||). */
864 case BINOP_LOGICAL_AND:
865 case BINOP_LOGICAL_OR:
867 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
869 if (noside == EVAL_SKIP)
871 evaluate_subexp (NULL_TYPE, exp, pos, noside);
873 return value_from_longest (builtin_type (exp->gdbarch)->
878 /* For scalar operations we need to avoid evaluating operands
879 unecessarily. However, for vector operations we always need to
880 evaluate both operands. Unfortunately we only know which of the
881 two cases apply after we know the type of the second operand.
882 Therefore we evaluate it once using EVAL_AVOID_SIDE_EFFECTS. */
885 arg2 = evaluate_subexp (NULL_TYPE, exp, pos,
886 EVAL_AVOID_SIDE_EFFECTS);
888 type1 = check_typedef (value_type (arg1));
889 type2 = check_typedef (value_type (arg2));
891 if ((TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
892 || (TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2)))
894 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
896 return opencl_relop (exp, arg1, arg2, op);
900 /* For scalar built-in types, only evaluate the right
901 hand operand if the left hand operand compares
902 unequal(&&)/equal(||) to 0. */
904 int tmp = value_logical_not (arg1);
906 if (op == BINOP_LOGICAL_OR)
909 arg2 = evaluate_subexp (NULL_TYPE, exp, pos,
910 tmp ? EVAL_SKIP : noside);
911 type1 = language_bool_type (exp->language_defn, exp->gdbarch);
913 if (op == BINOP_LOGICAL_AND)
914 res = !tmp && !value_logical_not (arg2);
915 else /* BINOP_LOGICAL_OR */
916 res = tmp || !value_logical_not (arg2);
918 return value_from_longest (type1, res);
922 /* Handle the ternary selection operator. */
925 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
926 type1 = check_typedef (value_type (arg1));
927 if (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
929 struct value *arg3, *tmp, *ret;
930 struct type *eltype2, *type3, *eltype3;
931 int t2_is_vec, t3_is_vec, i;
932 LONGEST lowb1, lowb2, lowb3, highb1, highb2, highb3;
934 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
935 arg3 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
936 type2 = check_typedef (value_type (arg2));
937 type3 = check_typedef (value_type (arg3));
939 = TYPE_CODE (type2) == TYPE_CODE_ARRAY && TYPE_VECTOR (type2);
941 = TYPE_CODE (type3) == TYPE_CODE_ARRAY && TYPE_VECTOR (type3);
943 /* Widen the scalar operand to a vector if necessary. */
944 if (t2_is_vec || !t3_is_vec)
946 arg3 = opencl_value_cast (type2, arg3);
947 type3 = value_type (arg3);
949 else if (!t2_is_vec || t3_is_vec)
951 arg2 = opencl_value_cast (type3, arg2);
952 type2 = value_type (arg2);
954 else if (!t2_is_vec || !t3_is_vec)
956 /* Throw an error if arg2 or arg3 aren't vectors. */
958 Cannot perform conditional operation on incompatible types"));
961 eltype2 = check_typedef (TYPE_TARGET_TYPE (type2));
962 eltype3 = check_typedef (TYPE_TARGET_TYPE (type3));
964 if (!get_array_bounds (type1, &lowb1, &highb1)
965 || !get_array_bounds (type2, &lowb2, &highb2)
966 || !get_array_bounds (type3, &lowb3, &highb3))
967 error (_("Could not determine the vector bounds"));
969 /* Throw an error if the types of arg2 or arg3 are incompatible. */
970 if (TYPE_CODE (eltype2) != TYPE_CODE (eltype3)
971 || TYPE_LENGTH (eltype2) != TYPE_LENGTH (eltype3)
972 || TYPE_UNSIGNED (eltype2) != TYPE_UNSIGNED (eltype3)
973 || lowb2 != lowb3 || highb2 != highb3)
975 Cannot perform operation on vectors with different types"));
977 /* Throw an error if the sizes of arg1 and arg2/arg3 differ. */
978 if (lowb1 != lowb2 || lowb1 != lowb3
979 || highb1 != highb2 || highb1 != highb3)
981 Cannot perform conditional operation on vectors with different sizes"));
983 ret = allocate_value (type2);
985 for (i = 0; i < highb1 - lowb1 + 1; i++)
987 tmp = value_logical_not (value_subscript (arg1, i)) ?
988 value_subscript (arg3, i) : value_subscript (arg2, i);
989 memcpy (value_contents_writeable (ret) +
990 i * TYPE_LENGTH (eltype2), value_contents_all (tmp),
991 TYPE_LENGTH (eltype2));
998 if (value_logical_not (arg1))
1000 /* Skip the second operand. */
1001 evaluate_subexp (NULL_TYPE, exp, pos, EVAL_SKIP);
1003 return evaluate_subexp (NULL_TYPE, exp, pos, noside);
1007 /* Skip the third operand. */
1008 arg2 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
1009 evaluate_subexp (NULL_TYPE, exp, pos, EVAL_SKIP);
1015 /* Handle STRUCTOP_STRUCT to allow component access on OpenCL vectors. */
1016 case STRUCTOP_STRUCT:
1019 int tem = longest_to_int (exp->elts[pc + 1].longconst);
1021 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
1022 arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
1023 type1 = check_typedef (value_type (arg1));
1025 if (noside == EVAL_SKIP)
1027 return value_from_longest (builtin_type (exp->gdbarch)->
1030 else if (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
1032 return opencl_component_ref (exp, arg1, &exp->elts[pc + 2].string,
1037 struct value *v = value_struct_elt (&arg1, NULL,
1038 &exp->elts[pc + 2].string, NULL,
1041 if (noside == EVAL_AVOID_SIDE_EFFECTS)
1042 v = value_zero (value_type (v), not_lval);
1050 return evaluate_subexp_c (expect_type, exp, pos, noside);
1053 /* Print OpenCL types. */
1056 opencl_print_type (struct type *type, const char *varstring,
1057 struct ui_file *stream, int show, int level,
1058 const struct type_print_options *flags)
1060 /* We nearly always defer to C type printing, except that vector
1061 types are considered primitive in OpenCL, and should always
1062 be printed using their TYPE_NAME. */
1065 CHECK_TYPEDEF (type);
1066 if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type)
1067 && TYPE_NAME (type) != NULL)
1071 c_print_type (type, varstring, stream, show, level, flags);
1075 opencl_language_arch_info (struct gdbarch *gdbarch,
1076 struct language_arch_info *lai)
1078 struct type **types = builtin_opencl_type (gdbarch);
1080 /* Copy primitive types vector from gdbarch. */
1081 lai->primitive_type_vector = types;
1083 /* Type of elements of strings. */
1084 lai->string_char_type = types [opencl_primitive_type_char];
1086 /* Specifies the return type of logical and relational operations. */
1087 lai->bool_type_symbol = "int";
1088 lai->bool_type_default = types [opencl_primitive_type_int];
1091 const struct exp_descriptor exp_descriptor_opencl =
1093 print_subexp_standard,
1094 operator_length_standard,
1095 operator_check_standard,
1097 dump_subexp_body_standard,
1098 evaluate_subexp_opencl
1101 const struct language_defn opencl_language_defn =
1103 "opencl", /* Language name */
1110 &exp_descriptor_opencl,
1114 c_printchar, /* Print a character constant */
1115 c_printstr, /* Function to print string constant */
1116 c_emit_char, /* Print a single char */
1117 opencl_print_type, /* Print a type using appropriate syntax */
1118 c_print_typedef, /* Print a typedef using appropriate syntax */
1119 c_val_print, /* Print a value using appropriate syntax */
1120 c_value_print, /* Print a top-level value */
1121 default_read_var_value, /* la_read_var_value */
1122 NULL, /* Language specific skip_trampoline */
1123 NULL, /* name_of_this */
1124 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1125 basic_lookup_transparent_type,/* lookup_transparent_type */
1126 NULL, /* Language specific symbol demangler */
1127 NULL, /* Language specific
1128 class_name_from_physname */
1129 c_op_print_tab, /* expression operators for printing */
1130 1, /* c-style arrays */
1131 0, /* String lower bound */
1132 default_word_break_characters,
1133 default_make_symbol_completion_list,
1134 opencl_language_arch_info,
1135 default_print_array_index,
1136 default_pass_by_reference,
1138 NULL, /* la_get_symbol_name_cmp */
1139 iterate_over_symbols,
1140 &default_varobj_ops,
1145 build_opencl_types (struct gdbarch *gdbarch)
1148 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_opencl_primitive_types + 1,
1151 /* Helper macro to create strings. */
1152 #define OCL_STRING(S) #S
1153 /* This macro allocates and assigns the type struct pointers
1154 for the vector types. */
1155 #define BUILD_OCL_VTYPES(TYPE)\
1156 types[opencl_primitive_type_##TYPE##2] \
1157 = init_vector_type (types[opencl_primitive_type_##TYPE], 2); \
1158 TYPE_NAME (types[opencl_primitive_type_##TYPE##2]) = OCL_STRING(TYPE ## 2); \
1159 types[opencl_primitive_type_##TYPE##3] \
1160 = init_vector_type (types[opencl_primitive_type_##TYPE], 3); \
1161 TYPE_NAME (types[opencl_primitive_type_##TYPE##3]) = OCL_STRING(TYPE ## 3); \
1162 TYPE_LENGTH (types[opencl_primitive_type_##TYPE##3]) \
1163 = 4 * TYPE_LENGTH (types[opencl_primitive_type_##TYPE]); \
1164 types[opencl_primitive_type_##TYPE##4] \
1165 = init_vector_type (types[opencl_primitive_type_##TYPE], 4); \
1166 TYPE_NAME (types[opencl_primitive_type_##TYPE##4]) = OCL_STRING(TYPE ## 4); \
1167 types[opencl_primitive_type_##TYPE##8] \
1168 = init_vector_type (types[opencl_primitive_type_##TYPE], 8); \
1169 TYPE_NAME (types[opencl_primitive_type_##TYPE##8]) = OCL_STRING(TYPE ## 8); \
1170 types[opencl_primitive_type_##TYPE##16] \
1171 = init_vector_type (types[opencl_primitive_type_##TYPE], 16); \
1172 TYPE_NAME (types[opencl_primitive_type_##TYPE##16]) = OCL_STRING(TYPE ## 16)
1174 types[opencl_primitive_type_char]
1175 = arch_integer_type (gdbarch, 8, 0, "char");
1176 BUILD_OCL_VTYPES (char);
1177 types[opencl_primitive_type_uchar]
1178 = arch_integer_type (gdbarch, 8, 1, "uchar");
1179 BUILD_OCL_VTYPES (uchar);
1180 types[opencl_primitive_type_short]
1181 = arch_integer_type (gdbarch, 16, 0, "short");
1182 BUILD_OCL_VTYPES (short);
1183 types[opencl_primitive_type_ushort]
1184 = arch_integer_type (gdbarch, 16, 1, "ushort");
1185 BUILD_OCL_VTYPES (ushort);
1186 types[opencl_primitive_type_int]
1187 = arch_integer_type (gdbarch, 32, 0, "int");
1188 BUILD_OCL_VTYPES (int);
1189 types[opencl_primitive_type_uint]
1190 = arch_integer_type (gdbarch, 32, 1, "uint");
1191 BUILD_OCL_VTYPES (uint);
1192 types[opencl_primitive_type_long]
1193 = arch_integer_type (gdbarch, 64, 0, "long");
1194 BUILD_OCL_VTYPES (long);
1195 types[opencl_primitive_type_ulong]
1196 = arch_integer_type (gdbarch, 64, 1, "ulong");
1197 BUILD_OCL_VTYPES (ulong);
1198 types[opencl_primitive_type_half]
1199 = arch_float_type (gdbarch, 16, "half", floatformats_ieee_half);
1200 BUILD_OCL_VTYPES (half);
1201 types[opencl_primitive_type_float]
1202 = arch_float_type (gdbarch, 32, "float", floatformats_ieee_single);
1203 BUILD_OCL_VTYPES (float);
1204 types[opencl_primitive_type_double]
1205 = arch_float_type (gdbarch, 64, "double", floatformats_ieee_double);
1206 BUILD_OCL_VTYPES (double);
1207 types[opencl_primitive_type_bool]
1208 = arch_boolean_type (gdbarch, 8, 1, "bool");
1209 types[opencl_primitive_type_unsigned_char]
1210 = arch_integer_type (gdbarch, 8, 1, "unsigned char");
1211 types[opencl_primitive_type_unsigned_short]
1212 = arch_integer_type (gdbarch, 16, 1, "unsigned short");
1213 types[opencl_primitive_type_unsigned_int]
1214 = arch_integer_type (gdbarch, 32, 1, "unsigned int");
1215 types[opencl_primitive_type_unsigned_long]
1216 = arch_integer_type (gdbarch, 64, 1, "unsigned long");
1217 types[opencl_primitive_type_size_t]
1218 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 1, "size_t");
1219 types[opencl_primitive_type_ptrdiff_t]
1220 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 0, "ptrdiff_t");
1221 types[opencl_primitive_type_intptr_t]
1222 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 0, "intptr_t");
1223 types[opencl_primitive_type_uintptr_t]
1224 = arch_integer_type (gdbarch, gdbarch_ptr_bit (gdbarch), 1, "uintptr_t");
1225 types[opencl_primitive_type_void]
1226 = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void");
1231 /* Provide a prototype to silence -Wmissing-prototypes. */
1232 extern initialize_file_ftype _initialize_opencl_language;
1235 _initialize_opencl_language (void)
1237 opencl_type_data = gdbarch_data_register_post_init (build_opencl_types);
1238 add_language (&opencl_language_defn);