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 current loop being visited */
81 /* the parent of the current cf node being visited */
82 nir_cf_node
*parent_node
;
84 /* the current function implementation being validated */
85 nir_function_impl
*impl
;
87 /* map of SSA value -> function implementation where it is defined */
88 struct hash_table
*ssa_defs
;
90 /* bitset of ssa definitions we have found; used to check uniqueness */
91 BITSET_WORD
*ssa_defs_found
;
93 /* bitset of registers we have currently found; used to check uniqueness */
94 BITSET_WORD
*regs_found
;
96 /* map of local variable -> function implementation where it is defined */
97 struct hash_table
*var_defs
;
100 static void validate_src(nir_src
*src
, validate_state
*state
);
103 validate_reg_src(nir_src
*src
, validate_state
*state
)
105 assert(src
->reg
.reg
!= NULL
);
107 struct hash_entry
*entry
;
108 entry
= _mesa_hash_table_search(state
->regs
, src
->reg
.reg
);
111 reg_validate_state
*reg_state
= (reg_validate_state
*) entry
->data
;
114 _mesa_set_add(reg_state
->uses
, src
);
116 assert(state
->if_stmt
);
117 _mesa_set_add(reg_state
->if_uses
, src
);
120 if (!src
->reg
.reg
->is_global
) {
121 assert(reg_state
->where_defined
== state
->impl
&&
122 "using a register declared in a different function");
125 assert((src
->reg
.reg
->num_array_elems
== 0 ||
126 src
->reg
.base_offset
< src
->reg
.reg
->num_array_elems
) &&
127 "definitely out-of-bounds array access");
129 if (src
->reg
.indirect
) {
130 assert(src
->reg
.reg
->num_array_elems
!= 0);
131 assert((src
->reg
.indirect
->is_ssa
||
132 src
->reg
.indirect
->reg
.indirect
== NULL
) &&
133 "only one level of indirection allowed");
134 validate_src(src
->reg
.indirect
, state
);
139 validate_ssa_src(nir_src
*src
, validate_state
*state
)
141 assert(src
->ssa
!= NULL
);
143 struct hash_entry
*entry
= _mesa_hash_table_search(state
->ssa_defs
, src
->ssa
);
147 ssa_def_validate_state
*def_state
= (ssa_def_validate_state
*)entry
->data
;
149 assert(def_state
->where_defined
== state
->impl
&&
150 "using an SSA value defined in a different function");
153 _mesa_set_add(def_state
->uses
, src
);
155 assert(state
->if_stmt
);
156 _mesa_set_add(def_state
->if_uses
, src
);
159 /* TODO validate that the use is dominated by the definition */
163 validate_src(nir_src
*src
, validate_state
*state
)
166 assert(src
->parent_instr
== state
->instr
);
168 assert(src
->parent_if
== state
->if_stmt
);
171 validate_ssa_src(src
, state
);
173 validate_reg_src(src
, state
);
177 validate_alu_src(nir_alu_instr
*instr
, unsigned index
, validate_state
*state
)
179 nir_alu_src
*src
= &instr
->src
[index
];
181 unsigned num_components
;
183 num_components
= src
->src
.ssa
->num_components
;
185 if (src
->src
.reg
.reg
->is_packed
)
186 num_components
= 4; /* can't check anything */
188 num_components
= src
->src
.reg
.reg
->num_components
;
190 for (unsigned i
= 0; i
< 4; i
++) {
191 assert(src
->swizzle
[i
] < 4);
193 if (nir_alu_instr_channel_used(instr
, index
, i
))
194 assert(src
->swizzle
[i
] < num_components
);
197 validate_src(&src
->src
, state
);
201 validate_reg_dest(nir_reg_dest
*dest
, validate_state
*state
)
203 assert(dest
->reg
!= NULL
);
205 assert(dest
->parent_instr
== state
->instr
);
207 struct hash_entry
*entry2
;
208 entry2
= _mesa_hash_table_search(state
->regs
, dest
->reg
);
212 reg_validate_state
*reg_state
= (reg_validate_state
*) entry2
->data
;
213 _mesa_set_add(reg_state
->defs
, dest
);
215 if (!dest
->reg
->is_global
) {
216 assert(reg_state
->where_defined
== state
->impl
&&
217 "writing to a register declared in a different function");
220 assert((dest
->reg
->num_array_elems
== 0 ||
221 dest
->base_offset
< dest
->reg
->num_array_elems
) &&
222 "definitely out-of-bounds array access");
224 if (dest
->indirect
) {
225 assert(dest
->reg
->num_array_elems
!= 0);
226 assert((dest
->indirect
->is_ssa
|| dest
->indirect
->reg
.indirect
== NULL
) &&
227 "only one level of indirection allowed");
228 validate_src(dest
->indirect
, state
);
233 validate_ssa_def(nir_ssa_def
*def
, validate_state
*state
)
235 assert(def
->index
< state
->impl
->ssa_alloc
);
236 assert(!BITSET_TEST(state
->ssa_defs_found
, def
->index
));
237 BITSET_SET(state
->ssa_defs_found
, def
->index
);
239 assert(def
->parent_instr
== state
->instr
);
241 assert(def
->num_components
<= 4);
243 list_validate(&def
->uses
);
244 list_validate(&def
->if_uses
);
246 ssa_def_validate_state
*def_state
= ralloc(state
->ssa_defs
,
247 ssa_def_validate_state
);
248 def_state
->where_defined
= state
->impl
;
249 def_state
->uses
= _mesa_set_create(def_state
, _mesa_hash_pointer
,
250 _mesa_key_pointer_equal
);
251 def_state
->if_uses
= _mesa_set_create(def_state
, _mesa_hash_pointer
,
252 _mesa_key_pointer_equal
);
253 _mesa_hash_table_insert(state
->ssa_defs
, def
, def_state
);
257 validate_dest(nir_dest
*dest
, validate_state
*state
)
260 validate_ssa_def(&dest
->ssa
, state
);
262 validate_reg_dest(&dest
->reg
, state
);
266 validate_alu_dest(nir_alu_dest
*dest
, validate_state
*state
)
269 dest
->dest
.is_ssa
? dest
->dest
.ssa
.num_components
270 : dest
->dest
.reg
.reg
->num_components
;
271 bool is_packed
= !dest
->dest
.is_ssa
&& dest
->dest
.reg
.reg
->is_packed
;
273 * validate that the instruction doesn't write to components not in the
276 assert(is_packed
|| !(dest
->write_mask
& ~((1 << dest_size
) - 1)));
278 /* validate that saturate is only ever used on instructions with
279 * destinations of type float
281 nir_alu_instr
*alu
= nir_instr_as_alu(state
->instr
);
282 assert(nir_op_infos
[alu
->op
].output_type
== nir_type_float
||
285 validate_dest(&dest
->dest
, state
);
289 validate_alu_instr(nir_alu_instr
*instr
, validate_state
*state
)
291 assert(instr
->op
< nir_num_opcodes
);
293 validate_alu_dest(&instr
->dest
, state
);
295 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++) {
296 validate_alu_src(instr
, i
, state
);
301 validate_deref_chain(nir_deref
*deref
, validate_state
*state
)
303 assert(deref
->child
== NULL
|| ralloc_parent(deref
->child
) == deref
);
305 nir_deref
*parent
= NULL
;
306 while (deref
!= NULL
) {
307 switch (deref
->deref_type
) {
308 case nir_deref_type_array
:
309 assert(deref
->type
== glsl_get_array_element(parent
->type
));
310 if (nir_deref_as_array(deref
)->deref_array_type
==
311 nir_deref_array_type_indirect
)
312 validate_src(&nir_deref_as_array(deref
)->indirect
, state
);
315 case nir_deref_type_struct
:
316 assert(deref
->type
==
317 glsl_get_struct_field(parent
->type
,
318 nir_deref_as_struct(deref
)->index
));
321 case nir_deref_type_var
:
325 assert(!"Invalid deref type");
330 deref
= deref
->child
;
335 validate_var_use(nir_variable
*var
, validate_state
*state
)
337 if (var
->data
.mode
== nir_var_local
) {
338 struct hash_entry
*entry
= _mesa_hash_table_search(state
->var_defs
, var
);
341 assert((nir_function_impl
*) entry
->data
== state
->impl
);
346 validate_deref_var(void *parent_mem_ctx
, nir_deref_var
*deref
, validate_state
*state
)
348 assert(deref
!= NULL
);
349 assert(ralloc_parent(deref
) == parent_mem_ctx
);
350 assert(deref
->deref
.type
== deref
->var
->type
);
352 validate_var_use(deref
->var
, state
);
354 validate_deref_chain(&deref
->deref
, state
);
358 validate_intrinsic_instr(nir_intrinsic_instr
*instr
, validate_state
*state
)
360 unsigned num_srcs
= nir_intrinsic_infos
[instr
->intrinsic
].num_srcs
;
361 for (unsigned i
= 0; i
< num_srcs
; i
++) {
362 unsigned components_read
=
363 nir_intrinsic_infos
[instr
->intrinsic
].src_components
[i
];
364 if (components_read
== 0)
365 components_read
= instr
->num_components
;
367 assert(components_read
> 0);
369 if (instr
->src
[i
].is_ssa
) {
370 assert(components_read
<= instr
->src
[i
].ssa
->num_components
);
371 } else if (!instr
->src
[i
].reg
.reg
->is_packed
) {
372 assert(components_read
<= instr
->src
[i
].reg
.reg
->num_components
);
375 validate_src(&instr
->src
[i
], state
);
378 if (nir_intrinsic_infos
[instr
->intrinsic
].has_dest
) {
379 unsigned components_written
=
380 nir_intrinsic_infos
[instr
->intrinsic
].dest_components
;
381 if (components_written
== 0)
382 components_written
= instr
->num_components
;
384 assert(components_written
> 0);
386 if (instr
->dest
.is_ssa
) {
387 assert(components_written
<= instr
->dest
.ssa
.num_components
);
388 } else if (!instr
->dest
.reg
.reg
->is_packed
) {
389 assert(components_written
<= instr
->dest
.reg
.reg
->num_components
);
392 validate_dest(&instr
->dest
, state
);
395 unsigned num_vars
= nir_intrinsic_infos
[instr
->intrinsic
].num_variables
;
396 for (unsigned i
= 0; i
< num_vars
; i
++) {
397 validate_deref_var(instr
, instr
->variables
[i
], state
);
400 switch (instr
->intrinsic
) {
401 case nir_intrinsic_load_var
: {
402 const struct glsl_type
*type
=
403 nir_deref_tail(&instr
->variables
[0]->deref
)->type
;
404 assert(glsl_type_is_vector_or_scalar(type
) ||
405 (instr
->variables
[0]->var
->data
.mode
== nir_var_uniform
&&
406 glsl_get_base_type(type
) == GLSL_TYPE_SUBROUTINE
));
407 assert(instr
->num_components
== glsl_get_vector_elements(type
));
408 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_out
);
411 case nir_intrinsic_store_var
: {
412 const struct glsl_type
*type
=
413 nir_deref_tail(&instr
->variables
[0]->deref
)->type
;
414 assert(glsl_type_is_vector_or_scalar(type
) ||
415 (instr
->variables
[0]->var
->data
.mode
== nir_var_uniform
&&
416 glsl_get_base_type(type
) == GLSL_TYPE_SUBROUTINE
));
417 assert(instr
->num_components
== glsl_get_vector_elements(type
));
418 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_in
&&
419 instr
->variables
[0]->var
->data
.mode
!= nir_var_uniform
&&
420 instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_storage
);
423 case nir_intrinsic_copy_var
:
424 assert(nir_deref_tail(&instr
->variables
[0]->deref
)->type
==
425 nir_deref_tail(&instr
->variables
[1]->deref
)->type
);
426 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_in
&&
427 instr
->variables
[0]->var
->data
.mode
!= nir_var_uniform
&&
428 instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_storage
);
429 assert(instr
->variables
[1]->var
->data
.mode
!= nir_var_shader_out
);
437 validate_tex_instr(nir_tex_instr
*instr
, validate_state
*state
)
439 validate_dest(&instr
->dest
, state
);
441 bool src_type_seen
[nir_num_tex_src_types
];
442 for (unsigned i
= 0; i
< nir_num_tex_src_types
; i
++)
443 src_type_seen
[i
] = false;
445 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
446 assert(!src_type_seen
[instr
->src
[i
].src_type
]);
447 src_type_seen
[instr
->src
[i
].src_type
] = true;
448 validate_src(&instr
->src
[i
].src
, state
);
451 if (instr
->sampler
!= NULL
)
452 validate_deref_var(instr
, instr
->sampler
, state
);
456 validate_call_instr(nir_call_instr
*instr
, validate_state
*state
)
458 if (instr
->return_deref
== NULL
)
459 assert(glsl_type_is_void(instr
->callee
->return_type
));
461 assert(instr
->return_deref
->deref
.type
== instr
->callee
->return_type
);
463 assert(instr
->num_params
== instr
->callee
->num_params
);
465 for (unsigned i
= 0; i
< instr
->num_params
; i
++) {
466 assert(instr
->callee
->params
[i
].type
== instr
->params
[i
]->deref
.type
);
467 validate_deref_var(instr
, instr
->params
[i
], state
);
470 validate_deref_var(instr
, instr
->return_deref
, state
);
474 validate_load_const_instr(nir_load_const_instr
*instr
, validate_state
*state
)
476 validate_ssa_def(&instr
->def
, state
);
480 validate_ssa_undef_instr(nir_ssa_undef_instr
*instr
, validate_state
*state
)
482 validate_ssa_def(&instr
->def
, state
);
486 validate_phi_instr(nir_phi_instr
*instr
, validate_state
*state
)
489 * don't validate the sources until we get to them from their predecessor
490 * basic blocks, to avoid validating an SSA use before its definition.
493 validate_dest(&instr
->dest
, state
);
495 exec_list_validate(&instr
->srcs
);
496 assert(exec_list_length(&instr
->srcs
) ==
497 state
->block
->predecessors
->entries
);
501 validate_instr(nir_instr
*instr
, validate_state
*state
)
503 assert(instr
->block
== state
->block
);
505 state
->instr
= instr
;
507 switch (instr
->type
) {
508 case nir_instr_type_alu
:
509 validate_alu_instr(nir_instr_as_alu(instr
), state
);
512 case nir_instr_type_call
:
513 validate_call_instr(nir_instr_as_call(instr
), state
);
516 case nir_instr_type_intrinsic
:
517 validate_intrinsic_instr(nir_instr_as_intrinsic(instr
), state
);
520 case nir_instr_type_tex
:
521 validate_tex_instr(nir_instr_as_tex(instr
), state
);
524 case nir_instr_type_load_const
:
525 validate_load_const_instr(nir_instr_as_load_const(instr
), state
);
528 case nir_instr_type_phi
:
529 validate_phi_instr(nir_instr_as_phi(instr
), state
);
532 case nir_instr_type_ssa_undef
:
533 validate_ssa_undef_instr(nir_instr_as_ssa_undef(instr
), state
);
536 case nir_instr_type_jump
:
540 assert(!"Invalid ALU instruction type");
548 validate_phi_src(nir_phi_instr
*instr
, nir_block
*pred
, validate_state
*state
)
550 state
->instr
= &instr
->instr
;
552 assert(instr
->dest
.is_ssa
);
554 exec_list_validate(&instr
->srcs
);
555 nir_foreach_phi_src(instr
, src
) {
556 if (src
->pred
== pred
) {
557 assert(src
->src
.is_ssa
);
558 assert(src
->src
.ssa
->num_components
==
559 instr
->dest
.ssa
.num_components
);
561 validate_src(&src
->src
, state
);
571 validate_phi_srcs(nir_block
*block
, nir_block
*succ
, validate_state
*state
)
573 nir_foreach_instr(succ
, instr
) {
574 if (instr
->type
!= nir_instr_type_phi
)
577 validate_phi_src(nir_instr_as_phi(instr
), block
, state
);
581 static void validate_cf_node(nir_cf_node
*node
, validate_state
*state
);
584 validate_block(nir_block
*block
, validate_state
*state
)
586 assert(block
->cf_node
.parent
== state
->parent_node
);
588 state
->block
= block
;
590 exec_list_validate(&block
->instr_list
);
591 nir_foreach_instr(block
, instr
) {
592 if (instr
->type
== nir_instr_type_phi
) {
593 assert(instr
== nir_block_first_instr(block
) ||
594 nir_instr_prev(instr
)->type
== nir_instr_type_phi
);
597 if (instr
->type
== nir_instr_type_jump
) {
598 assert(instr
== nir_block_last_instr(block
));
601 validate_instr(instr
, state
);
604 assert(block
->successors
[0] != NULL
);
605 assert(block
->successors
[0] != block
->successors
[1]);
607 for (unsigned i
= 0; i
< 2; i
++) {
608 if (block
->successors
[i
] != NULL
) {
609 struct set_entry
*entry
=
610 _mesa_set_search(block
->successors
[i
]->predecessors
, block
);
613 validate_phi_srcs(block
, block
->successors
[i
], state
);
617 struct set_entry
*entry
;
618 set_foreach(block
->predecessors
, entry
) {
619 const nir_block
*pred
= entry
->key
;
620 assert(pred
->successors
[0] == block
||
621 pred
->successors
[1] == block
);
624 if (!exec_list_is_empty(&block
->instr_list
) &&
625 nir_block_last_instr(block
)->type
== nir_instr_type_jump
) {
626 assert(block
->successors
[1] == NULL
);
627 nir_jump_instr
*jump
= nir_instr_as_jump(nir_block_last_instr(block
));
628 switch (jump
->type
) {
629 case nir_jump_break
: {
631 nir_cf_node_as_block(nir_cf_node_next(&state
->loop
->cf_node
));
632 assert(block
->successors
[0] == after
);
636 case nir_jump_continue
: {
638 nir_cf_node_as_block(nir_loop_first_cf_node(state
->loop
));
639 assert(block
->successors
[0] == first
);
643 case nir_jump_return
:
644 assert(block
->successors
[0] == state
->impl
->end_block
);
648 unreachable("bad jump type");
651 nir_cf_node
*next
= nir_cf_node_next(&block
->cf_node
);
653 switch (state
->parent_node
->type
) {
654 case nir_cf_node_loop
: {
656 nir_cf_node_as_block(nir_loop_first_cf_node(state
->loop
));
657 assert(block
->successors
[0] == first
);
658 /* due to the hack for infinite loops, block->successors[1] may
659 * point to the block after the loop.
664 case nir_cf_node_if
: {
666 nir_cf_node_as_block(nir_cf_node_next(state
->parent_node
));
667 assert(block
->successors
[0] == after
);
668 assert(block
->successors
[1] == NULL
);
672 case nir_cf_node_function
:
673 assert(block
->successors
[0] == state
->impl
->end_block
);
674 assert(block
->successors
[1] == NULL
);
678 unreachable("unknown control flow node type");
681 if (next
->type
== nir_cf_node_if
) {
682 nir_if
*if_stmt
= nir_cf_node_as_if(next
);
683 assert(&block
->successors
[0]->cf_node
==
684 nir_if_first_then_node(if_stmt
));
685 assert(&block
->successors
[1]->cf_node
==
686 nir_if_first_else_node(if_stmt
));
688 assert(next
->type
== nir_cf_node_loop
);
689 nir_loop
*loop
= nir_cf_node_as_loop(next
);
690 assert(&block
->successors
[0]->cf_node
==
691 nir_loop_first_cf_node(loop
));
692 assert(block
->successors
[1] == NULL
);
699 validate_if(nir_if
*if_stmt
, validate_state
*state
)
701 state
->if_stmt
= if_stmt
;
703 assert(!exec_node_is_head_sentinel(if_stmt
->cf_node
.node
.prev
));
704 nir_cf_node
*prev_node
= nir_cf_node_prev(&if_stmt
->cf_node
);
705 assert(prev_node
->type
== nir_cf_node_block
);
707 assert(!exec_node_is_tail_sentinel(if_stmt
->cf_node
.node
.next
));
708 nir_cf_node
*next_node
= nir_cf_node_next(&if_stmt
->cf_node
);
709 assert(next_node
->type
== nir_cf_node_block
);
711 validate_src(&if_stmt
->condition
, state
);
713 assert(!exec_list_is_empty(&if_stmt
->then_list
));
714 assert(!exec_list_is_empty(&if_stmt
->else_list
));
716 nir_cf_node
*old_parent
= state
->parent_node
;
717 state
->parent_node
= &if_stmt
->cf_node
;
719 exec_list_validate(&if_stmt
->then_list
);
720 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->then_list
) {
721 validate_cf_node(cf_node
, state
);
724 exec_list_validate(&if_stmt
->else_list
);
725 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->else_list
) {
726 validate_cf_node(cf_node
, state
);
729 state
->parent_node
= old_parent
;
730 state
->if_stmt
= NULL
;
734 validate_loop(nir_loop
*loop
, validate_state
*state
)
736 assert(!exec_node_is_head_sentinel(loop
->cf_node
.node
.prev
));
737 nir_cf_node
*prev_node
= nir_cf_node_prev(&loop
->cf_node
);
738 assert(prev_node
->type
== nir_cf_node_block
);
740 assert(!exec_node_is_tail_sentinel(loop
->cf_node
.node
.next
));
741 nir_cf_node
*next_node
= nir_cf_node_next(&loop
->cf_node
);
742 assert(next_node
->type
== nir_cf_node_block
);
744 assert(!exec_list_is_empty(&loop
->body
));
746 nir_cf_node
*old_parent
= state
->parent_node
;
747 state
->parent_node
= &loop
->cf_node
;
748 nir_loop
*old_loop
= state
->loop
;
751 exec_list_validate(&loop
->body
);
752 foreach_list_typed(nir_cf_node
, cf_node
, node
, &loop
->body
) {
753 validate_cf_node(cf_node
, state
);
756 state
->parent_node
= old_parent
;
757 state
->loop
= old_loop
;
761 validate_cf_node(nir_cf_node
*node
, validate_state
*state
)
763 assert(node
->parent
== state
->parent_node
);
765 switch (node
->type
) {
766 case nir_cf_node_block
:
767 validate_block(nir_cf_node_as_block(node
), state
);
771 validate_if(nir_cf_node_as_if(node
), state
);
774 case nir_cf_node_loop
:
775 validate_loop(nir_cf_node_as_loop(node
), state
);
779 unreachable("Invalid CF node type");
784 prevalidate_reg_decl(nir_register
*reg
, bool is_global
, validate_state
*state
)
786 assert(reg
->is_global
== is_global
);
789 assert(reg
->index
< state
->shader
->reg_alloc
);
791 assert(reg
->index
< state
->impl
->reg_alloc
);
792 assert(!BITSET_TEST(state
->regs_found
, reg
->index
));
793 BITSET_SET(state
->regs_found
, reg
->index
);
795 list_validate(®
->uses
);
796 list_validate(®
->defs
);
797 list_validate(®
->if_uses
);
799 reg_validate_state
*reg_state
= ralloc(state
->regs
, reg_validate_state
);
800 reg_state
->uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
801 _mesa_key_pointer_equal
);
802 reg_state
->if_uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
803 _mesa_key_pointer_equal
);
804 reg_state
->defs
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
805 _mesa_key_pointer_equal
);
807 reg_state
->where_defined
= is_global
? NULL
: state
->impl
;
809 _mesa_hash_table_insert(state
->regs
, reg
, reg_state
);
813 postvalidate_reg_decl(nir_register
*reg
, validate_state
*state
)
815 struct hash_entry
*entry
= _mesa_hash_table_search(state
->regs
, reg
);
817 reg_validate_state
*reg_state
= (reg_validate_state
*) entry
->data
;
819 nir_foreach_use(reg
, src
) {
820 struct set_entry
*entry
= _mesa_set_search(reg_state
->uses
, src
);
822 _mesa_set_remove(reg_state
->uses
, entry
);
825 if (reg_state
->uses
->entries
!= 0) {
826 printf("extra entries in register uses:\n");
827 struct set_entry
*entry
;
828 set_foreach(reg_state
->uses
, entry
)
829 printf("%p\n", entry
->key
);
834 nir_foreach_if_use(reg
, src
) {
835 struct set_entry
*entry
= _mesa_set_search(reg_state
->if_uses
, src
);
837 _mesa_set_remove(reg_state
->if_uses
, entry
);
840 if (reg_state
->if_uses
->entries
!= 0) {
841 printf("extra entries in register if_uses:\n");
842 struct set_entry
*entry
;
843 set_foreach(reg_state
->if_uses
, entry
)
844 printf("%p\n", entry
->key
);
849 nir_foreach_def(reg
, src
) {
850 struct set_entry
*entry
= _mesa_set_search(reg_state
->defs
, src
);
852 _mesa_set_remove(reg_state
->defs
, entry
);
855 if (reg_state
->defs
->entries
!= 0) {
856 printf("extra entries in register defs:\n");
857 struct set_entry
*entry
;
858 set_foreach(reg_state
->defs
, entry
)
859 printf("%p\n", entry
->key
);
866 validate_var_decl(nir_variable
*var
, bool is_global
, validate_state
*state
)
868 assert(is_global
!= (var
->data
.mode
== nir_var_local
));
871 * TODO validate some things ir_validate.cpp does (requires more GLSL type
876 _mesa_hash_table_insert(state
->var_defs
, var
, state
->impl
);
881 postvalidate_ssa_def(nir_ssa_def
*def
, void *void_state
)
883 validate_state
*state
= void_state
;
885 struct hash_entry
*entry
= _mesa_hash_table_search(state
->ssa_defs
, def
);
886 ssa_def_validate_state
*def_state
= (ssa_def_validate_state
*)entry
->data
;
888 nir_foreach_use(def
, src
) {
889 struct set_entry
*entry
= _mesa_set_search(def_state
->uses
, src
);
891 _mesa_set_remove(def_state
->uses
, entry
);
894 if (def_state
->uses
->entries
!= 0) {
895 printf("extra entries in register uses:\n");
896 struct set_entry
*entry
;
897 set_foreach(def_state
->uses
, entry
)
898 printf("%p\n", entry
->key
);
903 nir_foreach_if_use(def
, src
) {
904 struct set_entry
*entry
= _mesa_set_search(def_state
->if_uses
, src
);
906 _mesa_set_remove(def_state
->if_uses
, entry
);
909 if (def_state
->if_uses
->entries
!= 0) {
910 printf("extra entries in register uses:\n");
911 struct set_entry
*entry
;
912 set_foreach(def_state
->if_uses
, entry
)
913 printf("%p\n", entry
->key
);
922 postvalidate_ssa_defs_block(nir_block
*block
, void *state
)
924 nir_foreach_instr(block
, instr
)
925 nir_foreach_ssa_def(instr
, postvalidate_ssa_def
, state
);
931 validate_function_impl(nir_function_impl
*impl
, validate_state
*state
)
933 assert(impl
->overload
->impl
== impl
);
934 assert(impl
->cf_node
.parent
== NULL
);
936 assert(impl
->num_params
== impl
->overload
->num_params
);
937 for (unsigned i
= 0; i
< impl
->num_params
; i
++)
938 assert(impl
->params
[i
]->type
== impl
->overload
->params
[i
].type
);
940 if (glsl_type_is_void(impl
->overload
->return_type
))
941 assert(impl
->return_var
== NULL
);
943 assert(impl
->return_var
->type
== impl
->overload
->return_type
);
945 assert(exec_list_is_empty(&impl
->end_block
->instr_list
));
946 assert(impl
->end_block
->successors
[0] == NULL
);
947 assert(impl
->end_block
->successors
[1] == NULL
);
950 state
->parent_node
= &impl
->cf_node
;
952 exec_list_validate(&impl
->locals
);
953 nir_foreach_variable(var
, &impl
->locals
) {
954 validate_var_decl(var
, false, state
);
957 state
->regs_found
= realloc(state
->regs_found
,
958 BITSET_WORDS(impl
->reg_alloc
) *
959 sizeof(BITSET_WORD
));
960 memset(state
->regs_found
, 0, BITSET_WORDS(impl
->reg_alloc
) *
961 sizeof(BITSET_WORD
));
962 exec_list_validate(&impl
->registers
);
963 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
964 prevalidate_reg_decl(reg
, false, state
);
967 state
->ssa_defs_found
= realloc(state
->ssa_defs_found
,
968 BITSET_WORDS(impl
->ssa_alloc
) *
969 sizeof(BITSET_WORD
));
970 memset(state
->ssa_defs_found
, 0, BITSET_WORDS(impl
->ssa_alloc
) *
971 sizeof(BITSET_WORD
));
972 exec_list_validate(&impl
->body
);
973 foreach_list_typed(nir_cf_node
, node
, node
, &impl
->body
) {
974 validate_cf_node(node
, state
);
977 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
978 postvalidate_reg_decl(reg
, state
);
981 nir_foreach_block(impl
, postvalidate_ssa_defs_block
, state
);
985 validate_function_overload(nir_function_overload
*overload
,
986 validate_state
*state
)
988 if (overload
->impl
!= NULL
)
989 validate_function_impl(overload
->impl
, state
);
993 validate_function(nir_function
*func
, validate_state
*state
)
995 exec_list_validate(&func
->overload_list
);
996 foreach_list_typed(nir_function_overload
, overload
, node
, &func
->overload_list
) {
997 assert(overload
->function
== func
);
998 validate_function_overload(overload
, state
);
1003 init_validate_state(validate_state
*state
)
1005 state
->regs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1006 _mesa_key_pointer_equal
);
1007 state
->ssa_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1008 _mesa_key_pointer_equal
);
1009 state
->ssa_defs_found
= NULL
;
1010 state
->regs_found
= NULL
;
1011 state
->var_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1012 _mesa_key_pointer_equal
);
1017 destroy_validate_state(validate_state
*state
)
1019 _mesa_hash_table_destroy(state
->regs
, NULL
);
1020 _mesa_hash_table_destroy(state
->ssa_defs
, NULL
);
1021 free(state
->ssa_defs_found
);
1022 free(state
->regs_found
);
1023 _mesa_hash_table_destroy(state
->var_defs
, NULL
);
1027 nir_validate_shader(nir_shader
*shader
)
1029 validate_state state
;
1030 init_validate_state(&state
);
1032 state
.shader
= shader
;
1034 exec_list_validate(&shader
->uniforms
);
1035 nir_foreach_variable(var
, &shader
->uniforms
) {
1036 validate_var_decl(var
, true, &state
);
1039 exec_list_validate(&shader
->inputs
);
1040 nir_foreach_variable(var
, &shader
->inputs
) {
1041 validate_var_decl(var
, true, &state
);
1044 exec_list_validate(&shader
->outputs
);
1045 nir_foreach_variable(var
, &shader
->outputs
) {
1046 validate_var_decl(var
, true, &state
);
1049 exec_list_validate(&shader
->globals
);
1050 nir_foreach_variable(var
, &shader
->globals
) {
1051 validate_var_decl(var
, true, &state
);
1054 exec_list_validate(&shader
->system_values
);
1055 nir_foreach_variable(var
, &shader
->system_values
) {
1056 validate_var_decl(var
, true, &state
);
1059 state
.regs_found
= realloc(state
.regs_found
,
1060 BITSET_WORDS(shader
->reg_alloc
) *
1061 sizeof(BITSET_WORD
));
1062 memset(state
.regs_found
, 0, BITSET_WORDS(shader
->reg_alloc
) *
1063 sizeof(BITSET_WORD
));
1064 exec_list_validate(&shader
->registers
);
1065 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
1066 prevalidate_reg_decl(reg
, true, &state
);
1069 exec_list_validate(&shader
->functions
);
1070 foreach_list_typed(nir_function
, func
, node
, &shader
->functions
) {
1071 validate_function(func
, &state
);
1074 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
1075 postvalidate_reg_decl(reg
, &state
);
1078 destroy_validate_state(&state
);