2 * Copyright © 2014 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
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 DEALINGS
24 * Connor Abbott (cwabbott0@gmail.com)
32 * This file checks for invalid IR indicating a bug somewhere in the compiler.
35 /* Since this file is just a pile of asserts, don't bother compiling it if
36 * we're not building a debug build.
41 * Per-register validation state.
46 * equivalent to the uses and defs in nir_register, but built up by the
47 * validator. At the end, we verify that the sets have the same entries.
49 struct set
*uses
, *if_uses
, *defs
;
50 nir_function_impl
*where_defined
; /* NULL for global registers */
55 * equivalent to the uses in nir_ssa_def, but built up by the validator.
56 * At the end, we verify that the sets have the same entries.
58 struct set
*uses
, *if_uses
;
59 nir_function_impl
*where_defined
;
60 } ssa_def_validate_state
;
63 /* map of register -> validation state (struct above) */
64 struct hash_table
*regs
;
66 /* the current shader being validated */
69 /* the current instruction being validated */
72 /* the current basic block being validated */
75 /* the current if statement being validated */
78 /* the parent of the current cf node being visited */
79 nir_cf_node
*parent_node
;
81 /* the current function implementation being validated */
82 nir_function_impl
*impl
;
84 /* map of SSA value -> function implementation where it is defined */
85 struct hash_table
*ssa_defs
;
87 /* bitset of ssa definitions we have found; used to check uniqueness */
88 BITSET_WORD
*ssa_defs_found
;
90 /* bitset of registers we have currently found; used to check uniqueness */
91 BITSET_WORD
*regs_found
;
93 /* map of local variable -> function implementation where it is defined */
94 struct hash_table
*var_defs
;
97 static void validate_src(nir_src
*src
, validate_state
*state
);
100 validate_reg_src(nir_src
*src
, validate_state
*state
)
102 assert(src
->reg
.reg
!= NULL
);
104 struct hash_entry
*entry
;
105 entry
= _mesa_hash_table_search(state
->regs
, src
->reg
.reg
);
108 reg_validate_state
*reg_state
= (reg_validate_state
*) entry
->data
;
111 _mesa_set_add(reg_state
->uses
, src
);
113 assert(state
->if_stmt
);
114 _mesa_set_add(reg_state
->if_uses
, src
);
117 if (!src
->reg
.reg
->is_global
) {
118 assert(reg_state
->where_defined
== state
->impl
&&
119 "using a register declared in a different function");
122 assert((src
->reg
.reg
->num_array_elems
== 0 ||
123 src
->reg
.base_offset
< src
->reg
.reg
->num_array_elems
) &&
124 "definitely out-of-bounds array access");
126 if (src
->reg
.indirect
) {
127 assert(src
->reg
.reg
->num_array_elems
!= 0);
128 assert((src
->reg
.indirect
->is_ssa
||
129 src
->reg
.indirect
->reg
.indirect
== NULL
) &&
130 "only one level of indirection allowed");
131 validate_src(src
->reg
.indirect
, state
);
136 validate_ssa_src(nir_src
*src
, validate_state
*state
)
138 assert(src
->ssa
!= NULL
);
140 struct hash_entry
*entry
= _mesa_hash_table_search(state
->ssa_defs
, src
->ssa
);
144 ssa_def_validate_state
*def_state
= (ssa_def_validate_state
*)entry
->data
;
146 assert(def_state
->where_defined
== state
->impl
&&
147 "using an SSA value defined in a different function");
150 _mesa_set_add(def_state
->uses
, src
);
152 assert(state
->if_stmt
);
153 _mesa_set_add(def_state
->if_uses
, src
);
156 /* TODO validate that the use is dominated by the definition */
160 validate_src(nir_src
*src
, validate_state
*state
)
163 assert(src
->parent_instr
== state
->instr
);
165 assert(src
->parent_if
== state
->if_stmt
);
168 validate_ssa_src(src
, state
);
170 validate_reg_src(src
, state
);
174 validate_alu_src(nir_alu_instr
*instr
, unsigned index
, validate_state
*state
)
176 nir_alu_src
*src
= &instr
->src
[index
];
178 unsigned num_components
;
180 num_components
= src
->src
.ssa
->num_components
;
182 if (src
->src
.reg
.reg
->is_packed
)
183 num_components
= 4; /* can't check anything */
185 num_components
= src
->src
.reg
.reg
->num_components
;
187 for (unsigned i
= 0; i
< 4; i
++) {
188 assert(src
->swizzle
[i
] < 4);
190 if (nir_alu_instr_channel_used(instr
, index
, i
))
191 assert(src
->swizzle
[i
] < num_components
);
194 validate_src(&src
->src
, state
);
198 validate_reg_dest(nir_reg_dest
*dest
, validate_state
*state
)
200 assert(dest
->reg
!= NULL
);
202 assert(dest
->parent_instr
== state
->instr
);
204 struct hash_entry
*entry2
;
205 entry2
= _mesa_hash_table_search(state
->regs
, dest
->reg
);
209 reg_validate_state
*reg_state
= (reg_validate_state
*) entry2
->data
;
210 _mesa_set_add(reg_state
->defs
, dest
);
212 if (!dest
->reg
->is_global
) {
213 assert(reg_state
->where_defined
== state
->impl
&&
214 "writing to a register declared in a different function");
217 assert((dest
->reg
->num_array_elems
== 0 ||
218 dest
->base_offset
< dest
->reg
->num_array_elems
) &&
219 "definitely out-of-bounds array access");
221 if (dest
->indirect
) {
222 assert(dest
->reg
->num_array_elems
!= 0);
223 assert((dest
->indirect
->is_ssa
|| dest
->indirect
->reg
.indirect
== NULL
) &&
224 "only one level of indirection allowed");
225 validate_src(dest
->indirect
, state
);
230 validate_ssa_def(nir_ssa_def
*def
, validate_state
*state
)
232 assert(def
->index
< state
->impl
->ssa_alloc
);
233 assert(!BITSET_TEST(state
->ssa_defs_found
, def
->index
));
234 BITSET_SET(state
->ssa_defs_found
, def
->index
);
236 assert(def
->parent_instr
== state
->instr
);
238 assert(def
->num_components
<= 4);
240 list_validate(&def
->uses
);
241 list_validate(&def
->if_uses
);
243 ssa_def_validate_state
*def_state
= ralloc(state
->ssa_defs
,
244 ssa_def_validate_state
);
245 def_state
->where_defined
= state
->impl
;
246 def_state
->uses
= _mesa_set_create(def_state
, _mesa_hash_pointer
,
247 _mesa_key_pointer_equal
);
248 def_state
->if_uses
= _mesa_set_create(def_state
, _mesa_hash_pointer
,
249 _mesa_key_pointer_equal
);
250 _mesa_hash_table_insert(state
->ssa_defs
, def
, def_state
);
254 validate_dest(nir_dest
*dest
, validate_state
*state
)
257 validate_ssa_def(&dest
->ssa
, state
);
259 validate_reg_dest(&dest
->reg
, state
);
263 validate_alu_dest(nir_alu_dest
*dest
, validate_state
*state
)
266 dest
->dest
.is_ssa
? dest
->dest
.ssa
.num_components
267 : dest
->dest
.reg
.reg
->num_components
;
268 bool is_packed
= !dest
->dest
.is_ssa
&& dest
->dest
.reg
.reg
->is_packed
;
270 * validate that the instruction doesn't write to components not in the
273 assert(is_packed
|| !(dest
->write_mask
& ~((1 << dest_size
) - 1)));
275 /* validate that saturate is only ever used on instructions with
276 * destinations of type float
278 nir_alu_instr
*alu
= nir_instr_as_alu(state
->instr
);
279 assert(nir_op_infos
[alu
->op
].output_type
== nir_type_float
||
282 validate_dest(&dest
->dest
, state
);
286 validate_alu_instr(nir_alu_instr
*instr
, validate_state
*state
)
288 assert(instr
->op
< nir_num_opcodes
);
290 validate_alu_dest(&instr
->dest
, state
);
292 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++) {
293 validate_alu_src(instr
, i
, state
);
298 validate_deref_chain(nir_deref
*deref
, validate_state
*state
)
300 assert(deref
->child
== NULL
|| ralloc_parent(deref
->child
) == deref
);
302 nir_deref
*parent
= NULL
;
303 while (deref
!= NULL
) {
304 switch (deref
->deref_type
) {
305 case nir_deref_type_array
:
306 assert(deref
->type
== glsl_get_array_element(parent
->type
));
307 if (nir_deref_as_array(deref
)->deref_array_type
==
308 nir_deref_array_type_indirect
)
309 validate_src(&nir_deref_as_array(deref
)->indirect
, state
);
312 case nir_deref_type_struct
:
313 assert(deref
->type
==
314 glsl_get_struct_field(parent
->type
,
315 nir_deref_as_struct(deref
)->index
));
318 case nir_deref_type_var
:
322 assert(!"Invalid deref type");
327 deref
= deref
->child
;
332 validate_var_use(nir_variable
*var
, validate_state
*state
)
334 if (var
->data
.mode
== nir_var_local
) {
335 struct hash_entry
*entry
= _mesa_hash_table_search(state
->var_defs
, var
);
338 assert((nir_function_impl
*) entry
->data
== state
->impl
);
343 validate_deref_var(void *parent_mem_ctx
, nir_deref_var
*deref
, validate_state
*state
)
345 assert(deref
!= NULL
);
346 assert(ralloc_parent(deref
) == parent_mem_ctx
);
347 assert(deref
->deref
.type
== deref
->var
->type
);
349 validate_var_use(deref
->var
, state
);
351 validate_deref_chain(&deref
->deref
, state
);
355 validate_intrinsic_instr(nir_intrinsic_instr
*instr
, validate_state
*state
)
357 unsigned num_srcs
= nir_intrinsic_infos
[instr
->intrinsic
].num_srcs
;
358 for (unsigned i
= 0; i
< num_srcs
; i
++) {
359 unsigned components_read
=
360 nir_intrinsic_infos
[instr
->intrinsic
].src_components
[i
];
361 if (components_read
== 0)
362 components_read
= instr
->num_components
;
364 assert(components_read
> 0);
366 if (instr
->src
[i
].is_ssa
) {
367 assert(components_read
<= instr
->src
[i
].ssa
->num_components
);
368 } else if (!instr
->src
[i
].reg
.reg
->is_packed
) {
369 assert(components_read
<= instr
->src
[i
].reg
.reg
->num_components
);
372 validate_src(&instr
->src
[i
], state
);
375 if (nir_intrinsic_infos
[instr
->intrinsic
].has_dest
) {
376 unsigned components_written
=
377 nir_intrinsic_infos
[instr
->intrinsic
].dest_components
;
378 if (components_written
== 0)
379 components_written
= instr
->num_components
;
381 assert(components_written
> 0);
383 if (instr
->dest
.is_ssa
) {
384 assert(components_written
<= instr
->dest
.ssa
.num_components
);
385 } else if (!instr
->dest
.reg
.reg
->is_packed
) {
386 assert(components_written
<= instr
->dest
.reg
.reg
->num_components
);
389 validate_dest(&instr
->dest
, state
);
392 unsigned num_vars
= nir_intrinsic_infos
[instr
->intrinsic
].num_variables
;
393 for (unsigned i
= 0; i
< num_vars
; i
++) {
394 validate_deref_var(instr
, instr
->variables
[i
], state
);
397 switch (instr
->intrinsic
) {
398 case nir_intrinsic_load_var
:
399 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_out
);
401 case nir_intrinsic_store_var
:
402 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_in
&&
403 instr
->variables
[0]->var
->data
.mode
!= nir_var_uniform
);
405 case nir_intrinsic_copy_var
:
406 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_in
&&
407 instr
->variables
[0]->var
->data
.mode
!= nir_var_uniform
);
408 assert(instr
->variables
[1]->var
->data
.mode
!= nir_var_shader_out
);
416 validate_tex_instr(nir_tex_instr
*instr
, validate_state
*state
)
418 validate_dest(&instr
->dest
, state
);
420 bool src_type_seen
[nir_num_tex_src_types
];
421 for (unsigned i
= 0; i
< nir_num_tex_src_types
; i
++)
422 src_type_seen
[i
] = false;
424 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
425 assert(!src_type_seen
[instr
->src
[i
].src_type
]);
426 src_type_seen
[instr
->src
[i
].src_type
] = true;
427 validate_src(&instr
->src
[i
].src
, state
);
430 if (instr
->sampler
!= NULL
)
431 validate_deref_var(instr
, instr
->sampler
, state
);
435 validate_call_instr(nir_call_instr
*instr
, validate_state
*state
)
437 if (instr
->return_deref
== NULL
)
438 assert(glsl_type_is_void(instr
->callee
->return_type
));
440 assert(instr
->return_deref
->deref
.type
== instr
->callee
->return_type
);
442 assert(instr
->num_params
== instr
->callee
->num_params
);
444 for (unsigned i
= 0; i
< instr
->num_params
; i
++) {
445 assert(instr
->callee
->params
[i
].type
== instr
->params
[i
]->deref
.type
);
446 validate_deref_var(instr
, instr
->params
[i
], state
);
449 validate_deref_var(instr
, instr
->return_deref
, state
);
453 validate_load_const_instr(nir_load_const_instr
*instr
, validate_state
*state
)
455 validate_ssa_def(&instr
->def
, state
);
459 validate_ssa_undef_instr(nir_ssa_undef_instr
*instr
, validate_state
*state
)
461 validate_ssa_def(&instr
->def
, state
);
465 validate_phi_instr(nir_phi_instr
*instr
, validate_state
*state
)
468 * don't validate the sources until we get to them from their predecessor
469 * basic blocks, to avoid validating an SSA use before its definition.
472 validate_dest(&instr
->dest
, state
);
474 exec_list_validate(&instr
->srcs
);
475 assert(exec_list_length(&instr
->srcs
) ==
476 state
->block
->predecessors
->entries
);
480 validate_instr(nir_instr
*instr
, validate_state
*state
)
482 assert(instr
->block
== state
->block
);
484 state
->instr
= instr
;
486 switch (instr
->type
) {
487 case nir_instr_type_alu
:
488 validate_alu_instr(nir_instr_as_alu(instr
), state
);
491 case nir_instr_type_call
:
492 validate_call_instr(nir_instr_as_call(instr
), state
);
495 case nir_instr_type_intrinsic
:
496 validate_intrinsic_instr(nir_instr_as_intrinsic(instr
), state
);
499 case nir_instr_type_tex
:
500 validate_tex_instr(nir_instr_as_tex(instr
), state
);
503 case nir_instr_type_load_const
:
504 validate_load_const_instr(nir_instr_as_load_const(instr
), state
);
507 case nir_instr_type_phi
:
508 validate_phi_instr(nir_instr_as_phi(instr
), state
);
511 case nir_instr_type_ssa_undef
:
512 validate_ssa_undef_instr(nir_instr_as_ssa_undef(instr
), state
);
515 case nir_instr_type_jump
:
519 assert(!"Invalid ALU instruction type");
527 validate_phi_src(nir_phi_instr
*instr
, nir_block
*pred
, validate_state
*state
)
529 state
->instr
= &instr
->instr
;
531 assert(instr
->dest
.is_ssa
);
533 exec_list_validate(&instr
->srcs
);
534 nir_foreach_phi_src(instr
, src
) {
535 if (src
->pred
== pred
) {
536 assert(src
->src
.is_ssa
);
537 assert(src
->src
.ssa
->num_components
==
538 instr
->dest
.ssa
.num_components
);
540 validate_src(&src
->src
, state
);
550 validate_phi_srcs(nir_block
*block
, nir_block
*succ
, validate_state
*state
)
552 nir_foreach_instr(succ
, instr
) {
553 if (instr
->type
!= nir_instr_type_phi
)
556 validate_phi_src(nir_instr_as_phi(instr
), block
, state
);
560 static void validate_cf_node(nir_cf_node
*node
, validate_state
*state
);
563 validate_block(nir_block
*block
, validate_state
*state
)
565 assert(block
->cf_node
.parent
== state
->parent_node
);
567 state
->block
= block
;
569 exec_list_validate(&block
->instr_list
);
570 nir_foreach_instr(block
, instr
) {
571 if (instr
->type
== nir_instr_type_phi
) {
572 assert(instr
== nir_block_first_instr(block
) ||
573 nir_instr_prev(instr
)->type
== nir_instr_type_phi
);
576 if (instr
->type
== nir_instr_type_jump
) {
577 assert(instr
== nir_block_last_instr(block
));
580 validate_instr(instr
, state
);
583 assert(block
->successors
[0] != NULL
);
585 for (unsigned i
= 0; i
< 2; i
++) {
586 if (block
->successors
[i
] != NULL
) {
587 struct set_entry
*entry
=
588 _mesa_set_search(block
->successors
[i
]->predecessors
, block
);
591 validate_phi_srcs(block
, block
->successors
[i
], state
);
595 if (!exec_list_is_empty(&block
->instr_list
) &&
596 nir_block_last_instr(block
)->type
== nir_instr_type_jump
)
597 assert(block
->successors
[1] == NULL
);
601 validate_if(nir_if
*if_stmt
, validate_state
*state
)
603 state
->if_stmt
= if_stmt
;
605 assert(!exec_node_is_head_sentinel(if_stmt
->cf_node
.node
.prev
));
606 nir_cf_node
*prev_node
= nir_cf_node_prev(&if_stmt
->cf_node
);
607 assert(prev_node
->type
== nir_cf_node_block
);
609 nir_block
*prev_block
= nir_cf_node_as_block(prev_node
);
610 assert(&prev_block
->successors
[0]->cf_node
==
611 nir_if_first_then_node(if_stmt
));
612 assert(&prev_block
->successors
[1]->cf_node
==
613 nir_if_first_else_node(if_stmt
));
615 assert(!exec_node_is_tail_sentinel(if_stmt
->cf_node
.node
.next
));
616 nir_cf_node
*next_node
= nir_cf_node_next(&if_stmt
->cf_node
);
617 assert(next_node
->type
== nir_cf_node_block
);
619 validate_src(&if_stmt
->condition
, state
);
621 assert(!exec_list_is_empty(&if_stmt
->then_list
));
622 assert(!exec_list_is_empty(&if_stmt
->else_list
));
624 nir_cf_node
*old_parent
= state
->parent_node
;
625 state
->parent_node
= &if_stmt
->cf_node
;
627 exec_list_validate(&if_stmt
->then_list
);
628 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->then_list
) {
629 validate_cf_node(cf_node
, state
);
632 exec_list_validate(&if_stmt
->else_list
);
633 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->else_list
) {
634 validate_cf_node(cf_node
, state
);
637 state
->parent_node
= old_parent
;
638 state
->if_stmt
= NULL
;
642 validate_loop(nir_loop
*loop
, validate_state
*state
)
644 assert(!exec_node_is_head_sentinel(loop
->cf_node
.node
.prev
));
645 nir_cf_node
*prev_node
= nir_cf_node_prev(&loop
->cf_node
);
646 assert(prev_node
->type
== nir_cf_node_block
);
648 nir_block
*prev_block
= nir_cf_node_as_block(prev_node
);
649 assert(&prev_block
->successors
[0]->cf_node
== nir_loop_first_cf_node(loop
));
650 assert(prev_block
->successors
[1] == NULL
);
652 assert(!exec_node_is_tail_sentinel(loop
->cf_node
.node
.next
));
653 nir_cf_node
*next_node
= nir_cf_node_next(&loop
->cf_node
);
654 assert(next_node
->type
== nir_cf_node_block
);
656 assert(!exec_list_is_empty(&loop
->body
));
658 nir_cf_node
*old_parent
= state
->parent_node
;
659 state
->parent_node
= &loop
->cf_node
;
661 exec_list_validate(&loop
->body
);
662 foreach_list_typed(nir_cf_node
, cf_node
, node
, &loop
->body
) {
663 validate_cf_node(cf_node
, state
);
666 state
->parent_node
= old_parent
;
670 validate_cf_node(nir_cf_node
*node
, validate_state
*state
)
672 assert(node
->parent
== state
->parent_node
);
674 switch (node
->type
) {
675 case nir_cf_node_block
:
676 validate_block(nir_cf_node_as_block(node
), state
);
680 validate_if(nir_cf_node_as_if(node
), state
);
683 case nir_cf_node_loop
:
684 validate_loop(nir_cf_node_as_loop(node
), state
);
688 unreachable("Invalid CF node type");
693 prevalidate_reg_decl(nir_register
*reg
, bool is_global
, validate_state
*state
)
695 assert(reg
->is_global
== is_global
);
698 assert(reg
->index
< state
->shader
->reg_alloc
);
700 assert(reg
->index
< state
->impl
->reg_alloc
);
701 assert(!BITSET_TEST(state
->regs_found
, reg
->index
));
702 BITSET_SET(state
->regs_found
, reg
->index
);
704 list_validate(®
->uses
);
705 list_validate(®
->defs
);
706 list_validate(®
->if_uses
);
708 reg_validate_state
*reg_state
= ralloc(state
->regs
, reg_validate_state
);
709 reg_state
->uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
710 _mesa_key_pointer_equal
);
711 reg_state
->if_uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
712 _mesa_key_pointer_equal
);
713 reg_state
->defs
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
714 _mesa_key_pointer_equal
);
716 reg_state
->where_defined
= is_global
? NULL
: state
->impl
;
718 _mesa_hash_table_insert(state
->regs
, reg
, reg_state
);
722 postvalidate_reg_decl(nir_register
*reg
, validate_state
*state
)
724 struct hash_entry
*entry
= _mesa_hash_table_search(state
->regs
, reg
);
726 reg_validate_state
*reg_state
= (reg_validate_state
*) entry
->data
;
728 nir_foreach_use(reg
, src
) {
729 struct set_entry
*entry
= _mesa_set_search(reg_state
->uses
, src
);
731 _mesa_set_remove(reg_state
->uses
, entry
);
734 if (reg_state
->uses
->entries
!= 0) {
735 printf("extra entries in register uses:\n");
736 struct set_entry
*entry
;
737 set_foreach(reg_state
->uses
, entry
)
738 printf("%p\n", entry
->key
);
743 nir_foreach_if_use(reg
, src
) {
744 struct set_entry
*entry
= _mesa_set_search(reg_state
->if_uses
, src
);
746 _mesa_set_remove(reg_state
->if_uses
, entry
);
749 if (reg_state
->if_uses
->entries
!= 0) {
750 printf("extra entries in register if_uses:\n");
751 struct set_entry
*entry
;
752 set_foreach(reg_state
->if_uses
, entry
)
753 printf("%p\n", entry
->key
);
758 nir_foreach_def(reg
, src
) {
759 struct set_entry
*entry
= _mesa_set_search(reg_state
->defs
, src
);
761 _mesa_set_remove(reg_state
->defs
, entry
);
764 if (reg_state
->defs
->entries
!= 0) {
765 printf("extra entries in register defs:\n");
766 struct set_entry
*entry
;
767 set_foreach(reg_state
->defs
, entry
)
768 printf("%p\n", entry
->key
);
775 validate_var_decl(nir_variable
*var
, bool is_global
, validate_state
*state
)
777 assert(is_global
!= (var
->data
.mode
== nir_var_local
));
780 * TODO validate some things ir_validate.cpp does (requires more GLSL type
785 _mesa_hash_table_insert(state
->var_defs
, var
, state
->impl
);
790 postvalidate_ssa_def(nir_ssa_def
*def
, void *void_state
)
792 validate_state
*state
= void_state
;
794 struct hash_entry
*entry
= _mesa_hash_table_search(state
->ssa_defs
, def
);
795 ssa_def_validate_state
*def_state
= (ssa_def_validate_state
*)entry
->data
;
797 nir_foreach_use(def
, src
) {
798 struct set_entry
*entry
= _mesa_set_search(def_state
->uses
, src
);
800 _mesa_set_remove(def_state
->uses
, entry
);
803 if (def_state
->uses
->entries
!= 0) {
804 printf("extra entries in register uses:\n");
805 struct set_entry
*entry
;
806 set_foreach(def_state
->uses
, entry
)
807 printf("%p\n", entry
->key
);
812 nir_foreach_if_use(def
, src
) {
813 struct set_entry
*entry
= _mesa_set_search(def_state
->if_uses
, src
);
815 _mesa_set_remove(def_state
->if_uses
, entry
);
818 if (def_state
->if_uses
->entries
!= 0) {
819 printf("extra entries in register uses:\n");
820 struct set_entry
*entry
;
821 set_foreach(def_state
->if_uses
, entry
)
822 printf("%p\n", entry
->key
);
831 postvalidate_ssa_defs_block(nir_block
*block
, void *state
)
833 nir_foreach_instr(block
, instr
)
834 nir_foreach_ssa_def(instr
, postvalidate_ssa_def
, state
);
840 validate_function_impl(nir_function_impl
*impl
, validate_state
*state
)
842 assert(impl
->overload
->impl
== impl
);
843 assert(impl
->cf_node
.parent
== NULL
);
845 assert(impl
->num_params
== impl
->overload
->num_params
);
846 for (unsigned i
= 0; i
< impl
->num_params
; i
++)
847 assert(impl
->params
[i
]->type
== impl
->overload
->params
[i
].type
);
849 if (glsl_type_is_void(impl
->overload
->return_type
))
850 assert(impl
->return_var
== NULL
);
852 assert(impl
->return_var
->type
== impl
->overload
->return_type
);
854 assert(exec_list_is_empty(&impl
->end_block
->instr_list
));
855 assert(impl
->end_block
->successors
[0] == NULL
);
856 assert(impl
->end_block
->successors
[1] == NULL
);
859 state
->parent_node
= &impl
->cf_node
;
861 exec_list_validate(&impl
->locals
);
862 foreach_list_typed(nir_variable
, var
, node
, &impl
->locals
) {
863 validate_var_decl(var
, false, state
);
866 state
->regs_found
= realloc(state
->regs_found
,
867 BITSET_WORDS(impl
->reg_alloc
) *
868 sizeof(BITSET_WORD
));
869 memset(state
->regs_found
, 0, BITSET_WORDS(impl
->reg_alloc
) *
870 sizeof(BITSET_WORD
));
871 exec_list_validate(&impl
->registers
);
872 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
873 prevalidate_reg_decl(reg
, false, state
);
876 state
->ssa_defs_found
= realloc(state
->ssa_defs_found
,
877 BITSET_WORDS(impl
->ssa_alloc
) *
878 sizeof(BITSET_WORD
));
879 memset(state
->ssa_defs_found
, 0, BITSET_WORDS(impl
->ssa_alloc
) *
880 sizeof(BITSET_WORD
));
881 exec_list_validate(&impl
->body
);
882 foreach_list_typed(nir_cf_node
, node
, node
, &impl
->body
) {
883 validate_cf_node(node
, state
);
886 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
887 postvalidate_reg_decl(reg
, state
);
890 nir_foreach_block(impl
, postvalidate_ssa_defs_block
, state
);
894 validate_function_overload(nir_function_overload
*overload
,
895 validate_state
*state
)
897 if (overload
->impl
!= NULL
)
898 validate_function_impl(overload
->impl
, state
);
902 validate_function(nir_function
*func
, validate_state
*state
)
904 exec_list_validate(&func
->overload_list
);
905 foreach_list_typed(nir_function_overload
, overload
, node
, &func
->overload_list
) {
906 assert(overload
->function
== func
);
907 validate_function_overload(overload
, state
);
912 init_validate_state(validate_state
*state
)
914 state
->regs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
915 _mesa_key_pointer_equal
);
916 state
->ssa_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
917 _mesa_key_pointer_equal
);
918 state
->ssa_defs_found
= NULL
;
919 state
->regs_found
= NULL
;
920 state
->var_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
921 _mesa_key_pointer_equal
);
925 destroy_validate_state(validate_state
*state
)
927 _mesa_hash_table_destroy(state
->regs
, NULL
);
928 _mesa_hash_table_destroy(state
->ssa_defs
, NULL
);
929 free(state
->ssa_defs_found
);
930 free(state
->regs_found
);
931 _mesa_hash_table_destroy(state
->var_defs
, NULL
);
935 nir_validate_shader(nir_shader
*shader
)
937 validate_state state
;
938 init_validate_state(&state
);
940 state
.shader
= shader
;
942 exec_list_validate(&shader
->uniforms
);
943 foreach_list_typed(nir_variable
, var
, node
, &shader
->uniforms
) {
944 validate_var_decl(var
, true, &state
);
947 exec_list_validate(&shader
->inputs
);
948 foreach_list_typed(nir_variable
, var
, node
, &shader
->inputs
) {
949 validate_var_decl(var
, true, &state
);
952 exec_list_validate(&shader
->outputs
);
953 foreach_list_typed(nir_variable
, var
, node
, &shader
->outputs
) {
954 validate_var_decl(var
, true, &state
);
957 exec_list_validate(&shader
->globals
);
958 foreach_list_typed(nir_variable
, var
, node
, &shader
->globals
) {
959 validate_var_decl(var
, true, &state
);
962 exec_list_validate(&shader
->system_values
);
963 foreach_list_typed(nir_variable
, var
, node
, &shader
->system_values
) {
964 validate_var_decl(var
, true, &state
);
967 state
.regs_found
= realloc(state
.regs_found
,
968 BITSET_WORDS(shader
->reg_alloc
) *
969 sizeof(BITSET_WORD
));
970 memset(state
.regs_found
, 0, BITSET_WORDS(shader
->reg_alloc
) *
971 sizeof(BITSET_WORD
));
972 exec_list_validate(&shader
->registers
);
973 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
974 prevalidate_reg_decl(reg
, true, &state
);
977 exec_list_validate(&shader
->functions
);
978 foreach_list_typed(nir_function
, func
, node
, &shader
->functions
) {
979 validate_function(func
, &state
);
982 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
983 postvalidate_reg_decl(reg
, &state
);
986 destroy_validate_state(&state
);