2 * Copyright © 2010 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
25 * \file ir_validate.cpp
27 * Attempts to verify that various invariants of the IR tree are true.
29 * In particular, at the moment it makes sure that no single
30 * ir_instruction node except for ir_variable appears multiple times
31 * in the ir tree. ir_variable does appear multiple times: Once as a
32 * declaration in an exec_list, and multiple times as the endpoint of
33 * a dereference chain.
37 #include "ir_hierarchical_visitor.h"
38 #include "util/hash_table.h"
40 #include "glsl_types.h"
44 class ir_validate
: public ir_hierarchical_visitor
{
48 this->ir_set
= _mesa_set_create(NULL
, _mesa_hash_pointer
,
49 _mesa_key_pointer_equal
);
51 this->current_function
= NULL
;
53 this->callback_enter
= ir_validate::validate_ir
;
54 this->data_enter
= ir_set
;
59 _mesa_set_destroy(this->ir_set
, NULL
);
62 virtual ir_visitor_status
visit(ir_variable
*v
);
63 virtual ir_visitor_status
visit(ir_dereference_variable
*ir
);
65 virtual ir_visitor_status
visit_enter(ir_discard
*ir
);
66 virtual ir_visitor_status
visit_enter(ir_if
*ir
);
68 virtual ir_visitor_status
visit_enter(ir_function
*ir
);
69 virtual ir_visitor_status
visit_leave(ir_function
*ir
);
70 virtual ir_visitor_status
visit_enter(ir_function_signature
*ir
);
72 virtual ir_visitor_status
visit_leave(ir_expression
*ir
);
73 virtual ir_visitor_status
visit_leave(ir_swizzle
*ir
);
75 virtual ir_visitor_status
visit_enter(class ir_dereference_array
*);
77 virtual ir_visitor_status
visit_enter(ir_assignment
*ir
);
78 virtual ir_visitor_status
visit_enter(ir_call
*ir
);
80 static void validate_ir(ir_instruction
*ir
, void *data
);
82 ir_function
*current_function
;
87 } /* anonymous namespace */
90 ir_validate::visit(ir_dereference_variable
*ir
)
92 if ((ir
->var
== NULL
) || (ir
->var
->as_variable() == NULL
)) {
93 printf("ir_dereference_variable @ %p does not specify a variable %p\n",
94 (void *) ir
, (void *) ir
->var
);
98 if (_mesa_set_search(ir_set
, ir
->var
) == NULL
) {
99 printf("ir_dereference_variable @ %p specifies undeclared variable "
101 (void *) ir
, ir
->var
->name
, (void *) ir
->var
);
105 this->validate_ir(ir
, this->data_enter
);
107 return visit_continue
;
111 ir_validate::visit_enter(class ir_dereference_array
*ir
)
113 if (!ir
->array
->type
->is_array() && !ir
->array
->type
->is_matrix() &&
114 !ir
->array
->type
->is_vector()) {
115 printf("ir_dereference_array @ %p does not specify an array, a vector "
123 if (!ir
->array_index
->type
->is_scalar()) {
124 printf("ir_dereference_array @ %p does not have scalar index: %s\n",
125 (void *) ir
, ir
->array_index
->type
->name
);
129 if (!ir
->array_index
->type
->is_integer()) {
130 printf("ir_dereference_array @ %p does not have integer index: %s\n",
131 (void *) ir
, ir
->array_index
->type
->name
);
135 return visit_continue
;
139 ir_validate::visit_enter(ir_discard
*ir
)
141 if (ir
->condition
&& ir
->condition
->type
!= glsl_type::bool_type
) {
142 printf("ir_discard condition %s type instead of bool.\n",
143 ir
->condition
->type
->name
);
149 return visit_continue
;
153 ir_validate::visit_enter(ir_if
*ir
)
155 if (ir
->condition
->type
!= glsl_type::bool_type
) {
156 printf("ir_if condition %s type instead of bool.\n",
157 ir
->condition
->type
->name
);
163 return visit_continue
;
168 ir_validate::visit_enter(ir_function
*ir
)
170 /* Function definitions cannot be nested.
172 if (this->current_function
!= NULL
) {
173 printf("Function definition nested inside another function "
175 printf("%s %p inside %s %p\n",
176 ir
->name
, (void *) ir
,
177 this->current_function
->name
, (void *) this->current_function
);
181 /* Store the current function hierarchy being traversed. This is used
182 * by the function signature visitor to ensure that the signatures are
183 * linked with the correct functions.
185 this->current_function
= ir
;
187 this->validate_ir(ir
, this->data_enter
);
189 /* Verify that all of the things stored in the list of signatures are,
190 * in fact, function signatures.
192 foreach_in_list(ir_instruction
, sig
, &ir
->signatures
) {
193 if (sig
->ir_type
!= ir_type_function_signature
) {
194 printf("Non-signature in signature list of function `%s'\n",
200 return visit_continue
;
204 ir_validate::visit_leave(ir_function
*ir
)
206 assert(ralloc_parent(ir
->name
) == ir
);
208 this->current_function
= NULL
;
209 return visit_continue
;
213 ir_validate::visit_enter(ir_function_signature
*ir
)
215 if (this->current_function
!= ir
->function()) {
216 printf("Function signature nested inside wrong function "
218 printf("%p inside %s %p instead of %s %p\n",
220 this->current_function
->name
, (void *) this->current_function
,
221 ir
->function_name(), (void *) ir
->function());
225 if (ir
->return_type
== NULL
) {
226 printf("Function signature %p for function %s has NULL return type.\n",
227 (void *) ir
, ir
->function_name());
231 this->validate_ir(ir
, this->data_enter
);
233 return visit_continue
;
237 ir_validate::visit_leave(ir_expression
*ir
)
239 switch (ir
->operation
) {
240 case ir_unop_bit_not
:
241 assert(ir
->operands
[0]->type
== ir
->type
);
243 case ir_unop_logic_not
:
244 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
245 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_BOOL
);
254 assert(ir
->type
== ir
->operands
[0]->type
);
261 case ir_unop_saturate
:
262 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
263 assert(ir
->type
== ir
->operands
[0]->type
);
267 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
268 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
271 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
272 assert(ir
->type
->base_type
== GLSL_TYPE_UINT
);
275 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
);
276 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
279 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
280 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
283 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_BOOL
);
284 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
287 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
);
288 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
291 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_BOOL
);
292 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
295 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
);
296 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
299 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
);
300 assert(ir
->type
->base_type
== GLSL_TYPE_UINT
);
303 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
);
304 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
306 case ir_unop_bitcast_i2f
:
307 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
);
308 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
310 case ir_unop_bitcast_f2i
:
311 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
312 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
314 case ir_unop_bitcast_u2f
:
315 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
);
316 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
318 case ir_unop_bitcast_f2u
:
319 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
320 assert(ir
->type
->base_type
== GLSL_TYPE_UINT
);
324 case ir_unop_round_even
:
328 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
||
329 ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
330 assert(ir
->operands
[0]->type
== ir
->type
);
335 case ir_unop_dFdx_coarse
:
336 case ir_unop_dFdx_fine
:
338 case ir_unop_dFdy_coarse
:
339 case ir_unop_dFdy_fine
:
340 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
341 assert(ir
->operands
[0]->type
== ir
->type
);
344 case ir_unop_pack_snorm_2x16
:
345 case ir_unop_pack_unorm_2x16
:
346 case ir_unop_pack_half_2x16
:
347 assert(ir
->type
== glsl_type::uint_type
);
348 assert(ir
->operands
[0]->type
== glsl_type::vec2_type
);
351 case ir_unop_pack_snorm_4x8
:
352 case ir_unop_pack_unorm_4x8
:
353 assert(ir
->type
== glsl_type::uint_type
);
354 assert(ir
->operands
[0]->type
== glsl_type::vec4_type
);
357 case ir_unop_pack_double_2x32
:
358 assert(ir
->type
== glsl_type::double_type
);
359 assert(ir
->operands
[0]->type
== glsl_type::uvec2_type
);
362 case ir_unop_unpack_snorm_2x16
:
363 case ir_unop_unpack_unorm_2x16
:
364 case ir_unop_unpack_half_2x16
:
365 assert(ir
->type
== glsl_type::vec2_type
);
366 assert(ir
->operands
[0]->type
== glsl_type::uint_type
);
369 case ir_unop_unpack_snorm_4x8
:
370 case ir_unop_unpack_unorm_4x8
:
371 assert(ir
->type
== glsl_type::vec4_type
);
372 assert(ir
->operands
[0]->type
== glsl_type::uint_type
);
375 case ir_unop_unpack_half_2x16_split_x
:
376 case ir_unop_unpack_half_2x16_split_y
:
377 assert(ir
->type
== glsl_type::float_type
);
378 assert(ir
->operands
[0]->type
== glsl_type::uint_type
);
381 case ir_unop_unpack_double_2x32
:
382 assert(ir
->type
== glsl_type::uvec2_type
);
383 assert(ir
->operands
[0]->type
== glsl_type::double_type
);
386 case ir_unop_bitfield_reverse
:
387 assert(ir
->operands
[0]->type
== ir
->type
);
388 assert(ir
->type
->is_integer());
391 case ir_unop_bit_count
:
392 case ir_unop_find_msb
:
393 case ir_unop_find_lsb
:
394 assert(ir
->operands
[0]->type
->vector_elements
== ir
->type
->vector_elements
);
395 assert(ir
->operands
[0]->type
->is_integer());
396 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
400 /* XXX what can we assert here? */
403 case ir_unop_interpolate_at_centroid
:
404 assert(ir
->operands
[0]->type
== ir
->type
);
405 assert(ir
->operands
[0]->type
->is_float());
408 case ir_unop_get_buffer_size
:
409 assert(ir
->type
== glsl_type::int_type
);
410 assert(ir
->operands
[0]->type
== glsl_type::uint_type
);
413 case ir_unop_ssbo_unsized_array_length
:
414 assert(ir
->type
== glsl_type::int_type
);
415 assert(ir
->operands
[0]->type
->is_array());
416 assert(ir
->operands
[0]->type
->is_unsized_array());
420 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
421 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
);
424 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
);
425 assert(ir
->type
->base_type
== GLSL_TYPE_DOUBLE
);
428 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
429 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
432 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
);
433 assert(ir
->type
->base_type
== GLSL_TYPE_DOUBLE
);
436 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
437 assert(ir
->type
->base_type
== GLSL_TYPE_UINT
);
440 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
);
441 assert(ir
->type
->base_type
== GLSL_TYPE_DOUBLE
);
444 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
445 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
448 case ir_unop_frexp_sig
:
449 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
||
450 ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
451 assert(ir
->type
->base_type
== GLSL_TYPE_DOUBLE
);
453 case ir_unop_frexp_exp
:
454 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
||
455 ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
456 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
458 case ir_unop_subroutine_to_int
:
459 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_SUBROUTINE
);
460 assert(ir
->type
->base_type
== GLSL_TYPE_INT
);
470 assert(ir
->operands
[0]->type
->base_type
==
471 ir
->operands
[1]->type
->base_type
);
473 if (ir
->operands
[0]->type
->is_scalar())
474 assert(ir
->operands
[1]->type
== ir
->type
);
475 else if (ir
->operands
[1]->type
->is_scalar())
476 assert(ir
->operands
[0]->type
== ir
->type
);
477 else if (ir
->operands
[0]->type
->is_vector() &&
478 ir
->operands
[1]->type
->is_vector()) {
479 assert(ir
->operands
[0]->type
== ir
->operands
[1]->type
);
480 assert(ir
->operands
[0]->type
== ir
->type
);
484 case ir_binop_imul_high
:
485 assert(ir
->type
== ir
->operands
[0]->type
);
486 assert(ir
->type
== ir
->operands
[1]->type
);
487 assert(ir
->type
->is_integer());
491 case ir_binop_borrow
:
492 assert(ir
->type
== ir
->operands
[0]->type
);
493 assert(ir
->type
== ir
->operands
[1]->type
);
494 assert(ir
->type
->base_type
== GLSL_TYPE_UINT
);
498 case ir_binop_greater
:
499 case ir_binop_lequal
:
500 case ir_binop_gequal
:
502 case ir_binop_nequal
:
503 /* The semantics of the IR operators differ from the GLSL <, >, <=, >=,
504 * ==, and != operators. The IR operators perform a component-wise
505 * comparison on scalar or vector types and return a boolean scalar or
506 * vector type of the same size.
508 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
509 assert(ir
->operands
[0]->type
== ir
->operands
[1]->type
);
510 assert(ir
->operands
[0]->type
->is_vector()
511 || ir
->operands
[0]->type
->is_scalar());
512 assert(ir
->operands
[0]->type
->vector_elements
513 == ir
->type
->vector_elements
);
516 case ir_binop_all_equal
:
517 case ir_binop_any_nequal
:
518 /* GLSL == and != operate on scalars, vectors, matrices and arrays, and
519 * return a scalar boolean. The IR matches that.
521 assert(ir
->type
== glsl_type::bool_type
);
522 assert(ir
->operands
[0]->type
== ir
->operands
[1]->type
);
525 case ir_binop_lshift
:
526 case ir_binop_rshift
:
527 assert(ir
->operands
[0]->type
->is_integer() &&
528 ir
->operands
[1]->type
->is_integer());
529 if (ir
->operands
[0]->type
->is_scalar()) {
530 assert(ir
->operands
[1]->type
->is_scalar());
532 if (ir
->operands
[0]->type
->is_vector() &&
533 ir
->operands
[1]->type
->is_vector()) {
534 assert(ir
->operands
[0]->type
->components() ==
535 ir
->operands
[1]->type
->components());
537 assert(ir
->type
== ir
->operands
[0]->type
);
540 case ir_binop_bit_and
:
541 case ir_binop_bit_xor
:
542 case ir_binop_bit_or
:
543 assert(ir
->operands
[0]->type
->base_type
==
544 ir
->operands
[1]->type
->base_type
);
545 assert(ir
->type
->is_integer());
546 if (ir
->operands
[0]->type
->is_vector() &&
547 ir
->operands
[1]->type
->is_vector()) {
548 assert(ir
->operands
[0]->type
->vector_elements
==
549 ir
->operands
[1]->type
->vector_elements
);
553 case ir_binop_logic_and
:
554 case ir_binop_logic_xor
:
555 case ir_binop_logic_or
:
556 assert(ir
->type
->base_type
== GLSL_TYPE_BOOL
);
557 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_BOOL
);
558 assert(ir
->operands
[1]->type
->base_type
== GLSL_TYPE_BOOL
);
562 assert(ir
->type
== glsl_type::float_type
||
563 ir
->type
== glsl_type::double_type
);
564 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
||
565 ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
566 assert(ir
->operands
[0]->type
->is_vector());
567 assert(ir
->operands
[0]->type
== ir
->operands
[1]->type
);
570 case ir_binop_pack_half_2x16_split
:
571 assert(ir
->type
== glsl_type::uint_type
);
572 assert(ir
->operands
[0]->type
== glsl_type::float_type
);
573 assert(ir
->operands
[1]->type
== glsl_type::float_type
);
577 assert(ir
->type
->is_integer());
578 assert(ir
->operands
[0]->type
->is_integer());
579 assert(ir
->operands
[1]->type
->is_integer());
582 case ir_binop_ubo_load
:
583 assert(ir
->operands
[0]->type
== glsl_type::uint_type
);
585 assert(ir
->operands
[1]->type
== glsl_type::uint_type
);
589 assert(ir
->operands
[0]->type
== ir
->type
);
590 assert(ir
->operands
[0]->type
->is_float() ||
591 ir
->operands
[0]->type
->is_double());
592 assert(ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
);
593 assert(ir
->operands
[0]->type
->components() ==
594 ir
->operands
[1]->type
->components());
597 case ir_binop_vector_extract
:
598 assert(ir
->operands
[0]->type
->is_vector());
599 assert(ir
->operands
[1]->type
->is_scalar()
600 && ir
->operands
[1]->type
->is_integer());
603 case ir_binop_interpolate_at_offset
:
604 assert(ir
->operands
[0]->type
== ir
->type
);
605 assert(ir
->operands
[0]->type
->is_float());
606 assert(ir
->operands
[1]->type
->components() == 2);
607 assert(ir
->operands
[1]->type
->is_float());
610 case ir_binop_interpolate_at_sample
:
611 assert(ir
->operands
[0]->type
== ir
->type
);
612 assert(ir
->operands
[0]->type
->is_float());
613 assert(ir
->operands
[1]->type
== glsl_type::int_type
);
617 assert(ir
->type
->base_type
== GLSL_TYPE_FLOAT
||
618 ir
->type
->base_type
== GLSL_TYPE_DOUBLE
);
619 assert(ir
->type
== ir
->operands
[0]->type
);
620 assert(ir
->type
== ir
->operands
[1]->type
);
621 assert(ir
->type
== ir
->operands
[2]->type
);
625 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_FLOAT
||
626 ir
->operands
[0]->type
->base_type
== GLSL_TYPE_DOUBLE
);
627 assert(ir
->operands
[0]->type
== ir
->operands
[1]->type
);
628 assert(ir
->operands
[2]->type
== ir
->operands
[0]->type
||
629 ir
->operands
[2]->type
== glsl_type::float_type
||
630 ir
->operands
[2]->type
== glsl_type::double_type
);
634 assert(ir
->operands
[0]->type
->base_type
== GLSL_TYPE_BOOL
);
635 assert(ir
->type
->vector_elements
== ir
->operands
[0]->type
->vector_elements
);
636 assert(ir
->type
== ir
->operands
[1]->type
);
637 assert(ir
->type
== ir
->operands
[2]->type
);
641 assert(ir
->operands
[0]->type
->is_integer());
642 assert(ir
->operands
[1]->type
== ir
->operands
[2]->type
);
643 assert(ir
->operands
[1]->type
== ir
->type
);
646 case ir_triop_bitfield_extract
:
647 assert(ir
->operands
[0]->type
== ir
->type
);
648 assert(ir
->operands
[1]->type
== glsl_type::int_type
);
649 assert(ir
->operands
[2]->type
== glsl_type::int_type
);
652 case ir_triop_vector_insert
:
653 assert(ir
->operands
[0]->type
->is_vector());
654 assert(ir
->operands
[1]->type
->is_scalar());
655 assert(ir
->operands
[0]->type
->base_type
== ir
->operands
[1]->type
->base_type
);
656 assert(ir
->operands
[2]->type
->is_scalar()
657 && ir
->operands
[2]->type
->is_integer());
658 assert(ir
->type
== ir
->operands
[0]->type
);
661 case ir_quadop_bitfield_insert
:
662 assert(ir
->operands
[0]->type
== ir
->type
);
663 assert(ir
->operands
[1]->type
== ir
->type
);
664 assert(ir
->operands
[2]->type
== glsl_type::int_type
);
665 assert(ir
->operands
[3]->type
== glsl_type::int_type
);
668 case ir_quadop_vector
:
669 /* The vector operator collects some number of scalars and generates a
672 * - All of the operands must be scalar.
673 * - Number of operands must matche the size of the resulting vector.
674 * - Base type of the operands must match the base type of the result.
676 assert(ir
->type
->is_vector());
677 switch (ir
->type
->vector_elements
) {
679 assert(ir
->operands
[0]->type
->is_scalar());
680 assert(ir
->operands
[0]->type
->base_type
== ir
->type
->base_type
);
681 assert(ir
->operands
[1]->type
->is_scalar());
682 assert(ir
->operands
[1]->type
->base_type
== ir
->type
->base_type
);
683 assert(ir
->operands
[2] == NULL
);
684 assert(ir
->operands
[3] == NULL
);
687 assert(ir
->operands
[0]->type
->is_scalar());
688 assert(ir
->operands
[0]->type
->base_type
== ir
->type
->base_type
);
689 assert(ir
->operands
[1]->type
->is_scalar());
690 assert(ir
->operands
[1]->type
->base_type
== ir
->type
->base_type
);
691 assert(ir
->operands
[2]->type
->is_scalar());
692 assert(ir
->operands
[2]->type
->base_type
== ir
->type
->base_type
);
693 assert(ir
->operands
[3] == NULL
);
696 assert(ir
->operands
[0]->type
->is_scalar());
697 assert(ir
->operands
[0]->type
->base_type
== ir
->type
->base_type
);
698 assert(ir
->operands
[1]->type
->is_scalar());
699 assert(ir
->operands
[1]->type
->base_type
== ir
->type
->base_type
);
700 assert(ir
->operands
[2]->type
->is_scalar());
701 assert(ir
->operands
[2]->type
->base_type
== ir
->type
->base_type
);
702 assert(ir
->operands
[3]->type
->is_scalar());
703 assert(ir
->operands
[3]->type
->base_type
== ir
->type
->base_type
);
706 /* The is_vector assertion above should prevent execution from ever
709 assert(!"Should not get here.");
714 return visit_continue
;
718 ir_validate::visit_leave(ir_swizzle
*ir
)
720 unsigned int chans
[4] = {ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
722 for (unsigned int i
= 0; i
< ir
->type
->vector_elements
; i
++) {
723 if (chans
[i
] >= ir
->val
->type
->vector_elements
) {
724 printf("ir_swizzle @ %p specifies a channel not present "
725 "in the value.\n", (void *) ir
);
731 return visit_continue
;
735 ir_validate::visit(ir_variable
*ir
)
737 /* An ir_variable is the one thing that can (and will) appear multiple times
738 * in an IR tree. It is added to the hashtable so that it can be used
739 * in the ir_dereference_variable handler to ensure that a variable is
740 * declared before it is dereferenced.
742 if (ir
->name
&& ir
->is_name_ralloced())
743 assert(ralloc_parent(ir
->name
) == ir
);
745 _mesa_set_add(ir_set
, ir
);
747 /* If a variable is an array, verify that the maximum array index is in
748 * bounds. There was once an error in AST-to-HIR conversion that set this
749 * to be out of bounds.
751 if (ir
->type
->array_size() > 0) {
752 if (ir
->data
.max_array_access
>= ir
->type
->length
) {
753 printf("ir_variable has maximum access out of bounds (%d vs %d)\n",
754 ir
->data
.max_array_access
, ir
->type
->length
- 1);
760 /* If a variable is an interface block (or an array of interface blocks),
761 * verify that the maximum array index for each interface member is in
764 if (ir
->is_interface_instance()) {
765 const glsl_struct_field
*fields
=
766 ir
->get_interface_type()->fields
.structure
;
767 for (unsigned i
= 0; i
< ir
->get_interface_type()->length
; i
++) {
768 if (fields
[i
].type
->array_size() > 0) {
769 const unsigned *const max_ifc_array_access
=
770 ir
->get_max_ifc_array_access();
772 assert(max_ifc_array_access
!= NULL
);
774 if (max_ifc_array_access
[i
] >= fields
[i
].type
->length
) {
775 printf("ir_variable has maximum access out of bounds for "
776 "field %s (%d vs %d)\n", fields
[i
].name
,
777 max_ifc_array_access
[i
], fields
[i
].type
->length
);
785 if (ir
->constant_initializer
!= NULL
&& !ir
->data
.has_initializer
) {
786 printf("ir_variable didn't have an initializer, but has a constant "
787 "initializer value.\n");
792 if (ir
->data
.mode
== ir_var_uniform
793 && is_gl_identifier(ir
->name
)
794 && ir
->get_state_slots() == NULL
) {
795 printf("built-in uniform has no state\n");
800 return visit_continue
;
804 ir_validate::visit_enter(ir_assignment
*ir
)
806 const ir_dereference
*const lhs
= ir
->lhs
;
807 if (lhs
->type
->is_scalar() || lhs
->type
->is_vector()) {
808 if (ir
->write_mask
== 0) {
809 printf("Assignment LHS is %s, but write mask is 0:\n",
810 lhs
->type
->is_scalar() ? "scalar" : "vector");
815 int lhs_components
= 0;
816 for (int i
= 0; i
< 4; i
++) {
817 if (ir
->write_mask
& (1 << i
))
821 if (lhs_components
!= ir
->rhs
->type
->vector_elements
) {
822 printf("Assignment count of LHS write mask channels enabled not\n"
823 "matching RHS vector size (%d LHS, %d RHS).\n",
824 lhs_components
, ir
->rhs
->type
->vector_elements
);
830 this->validate_ir(ir
, this->data_enter
);
832 return visit_continue
;
836 ir_validate::visit_enter(ir_call
*ir
)
838 ir_function_signature
*const callee
= ir
->callee
;
840 if (callee
->ir_type
!= ir_type_function_signature
) {
841 printf("IR called by ir_call is not ir_function_signature!\n");
845 if (ir
->return_deref
) {
846 if (ir
->return_deref
->type
!= callee
->return_type
) {
847 printf("callee type %s does not match return storage type %s\n",
848 callee
->return_type
->name
, ir
->return_deref
->type
->name
);
851 } else if (callee
->return_type
!= glsl_type::void_type
) {
852 printf("ir_call has non-void callee but no return storage\n");
856 const exec_node
*formal_param_node
= callee
->parameters
.head
;
857 const exec_node
*actual_param_node
= ir
->actual_parameters
.head
;
859 if (formal_param_node
->is_tail_sentinel()
860 != actual_param_node
->is_tail_sentinel()) {
861 printf("ir_call has the wrong number of parameters:\n");
864 if (formal_param_node
->is_tail_sentinel()) {
867 const ir_variable
*formal_param
868 = (const ir_variable
*) formal_param_node
;
869 const ir_rvalue
*actual_param
870 = (const ir_rvalue
*) actual_param_node
;
871 if (formal_param
->type
!= actual_param
->type
) {
872 printf("ir_call parameter type mismatch:\n");
875 if (formal_param
->data
.mode
== ir_var_function_out
876 || formal_param
->data
.mode
== ir_var_function_inout
) {
877 if (!actual_param
->is_lvalue()) {
878 printf("ir_call out/inout parameters must be lvalues:\n");
882 formal_param_node
= formal_param_node
->next
;
883 actual_param_node
= actual_param_node
->next
;
886 return visit_continue
;
897 ir_validate::validate_ir(ir_instruction
*ir
, void *data
)
899 struct set
*ir_set
= (struct set
*) data
;
901 if (_mesa_set_search(ir_set
, ir
)) {
902 printf("Instruction node present twice in ir tree:\n");
907 _mesa_set_add(ir_set
, ir
);
911 check_node_type(ir_instruction
*ir
, void *data
)
915 if (ir
->ir_type
>= ir_type_max
) {
916 printf("Instruction node with unset type\n");
917 ir
->print(); printf("\n");
919 ir_rvalue
*value
= ir
->as_rvalue();
921 assert(value
->type
!= glsl_type::error_type
);
925 validate_ir_tree(exec_list
*instructions
)
927 /* We shouldn't have any reason to validate IR in a release build,
928 * and it's half composed of assert()s anyway which wouldn't do
936 foreach_in_list(ir_instruction
, ir
, instructions
) {
937 visit_tree(ir
, check_node_type
, NULL
);