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 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++) {
294 validate_alu_src(instr
, i
, state
);
297 validate_alu_dest(&instr
->dest
, 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 unsigned num_vars
= nir_intrinsic_infos
[instr
->intrinsic
].num_variables
;
379 for (unsigned i
= 0; i
< num_vars
; i
++) {
380 validate_deref_var(instr
, instr
->variables
[i
], state
);
383 if (nir_intrinsic_infos
[instr
->intrinsic
].has_dest
) {
384 unsigned components_written
=
385 nir_intrinsic_infos
[instr
->intrinsic
].dest_components
;
386 if (components_written
== 0)
387 components_written
= instr
->num_components
;
389 assert(components_written
> 0);
391 if (instr
->dest
.is_ssa
) {
392 assert(components_written
<= instr
->dest
.ssa
.num_components
);
393 } else if (!instr
->dest
.reg
.reg
->is_packed
) {
394 assert(components_written
<= instr
->dest
.reg
.reg
->num_components
);
397 validate_dest(&instr
->dest
, 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
));
410 case nir_intrinsic_store_var
: {
411 const struct glsl_type
*type
=
412 nir_deref_tail(&instr
->variables
[0]->deref
)->type
;
413 assert(glsl_type_is_vector_or_scalar(type
) ||
414 (instr
->variables
[0]->var
->data
.mode
== nir_var_uniform
&&
415 glsl_get_base_type(type
) == GLSL_TYPE_SUBROUTINE
));
416 assert(instr
->num_components
== glsl_get_vector_elements(type
));
417 assert(instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_in
&&
418 instr
->variables
[0]->var
->data
.mode
!= nir_var_uniform
&&
419 instr
->variables
[0]->var
->data
.mode
!= nir_var_shader_storage
);
420 assert((nir_intrinsic_write_mask(instr
) & ~((1 << instr
->num_components
) - 1)) == 0);
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
);
436 validate_tex_instr(nir_tex_instr
*instr
, validate_state
*state
)
438 bool src_type_seen
[nir_num_tex_src_types
];
439 for (unsigned i
= 0; i
< nir_num_tex_src_types
; i
++)
440 src_type_seen
[i
] = false;
442 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
443 assert(!src_type_seen
[instr
->src
[i
].src_type
]);
444 src_type_seen
[instr
->src
[i
].src_type
] = true;
445 validate_src(&instr
->src
[i
].src
, state
);
448 if (instr
->texture
!= NULL
)
449 validate_deref_var(instr
, instr
->texture
, state
);
451 if (instr
->sampler
!= NULL
)
452 validate_deref_var(instr
, instr
->sampler
, state
);
454 validate_dest(&instr
->dest
, state
);
458 validate_call_instr(nir_call_instr
*instr
, validate_state
*state
)
460 if (instr
->return_deref
== NULL
) {
461 assert(glsl_type_is_void(instr
->callee
->return_type
));
463 assert(instr
->return_deref
->deref
.type
== instr
->callee
->return_type
);
464 validate_deref_var(instr
, instr
->return_deref
, state
);
467 assert(instr
->num_params
== instr
->callee
->num_params
);
469 for (unsigned i
= 0; i
< instr
->num_params
; i
++) {
470 assert(instr
->callee
->params
[i
].type
== instr
->params
[i
]->deref
.type
);
471 validate_deref_var(instr
, instr
->params
[i
], state
);
476 validate_load_const_instr(nir_load_const_instr
*instr
, validate_state
*state
)
478 validate_ssa_def(&instr
->def
, state
);
482 validate_ssa_undef_instr(nir_ssa_undef_instr
*instr
, validate_state
*state
)
484 validate_ssa_def(&instr
->def
, state
);
488 validate_phi_instr(nir_phi_instr
*instr
, validate_state
*state
)
491 * don't validate the sources until we get to them from their predecessor
492 * basic blocks, to avoid validating an SSA use before its definition.
495 validate_dest(&instr
->dest
, state
);
497 exec_list_validate(&instr
->srcs
);
498 assert(exec_list_length(&instr
->srcs
) ==
499 state
->block
->predecessors
->entries
);
503 validate_instr(nir_instr
*instr
, validate_state
*state
)
505 assert(instr
->block
== state
->block
);
507 state
->instr
= instr
;
509 switch (instr
->type
) {
510 case nir_instr_type_alu
:
511 validate_alu_instr(nir_instr_as_alu(instr
), state
);
514 case nir_instr_type_call
:
515 validate_call_instr(nir_instr_as_call(instr
), state
);
518 case nir_instr_type_intrinsic
:
519 validate_intrinsic_instr(nir_instr_as_intrinsic(instr
), state
);
522 case nir_instr_type_tex
:
523 validate_tex_instr(nir_instr_as_tex(instr
), state
);
526 case nir_instr_type_load_const
:
527 validate_load_const_instr(nir_instr_as_load_const(instr
), state
);
530 case nir_instr_type_phi
:
531 validate_phi_instr(nir_instr_as_phi(instr
), state
);
534 case nir_instr_type_ssa_undef
:
535 validate_ssa_undef_instr(nir_instr_as_ssa_undef(instr
), state
);
538 case nir_instr_type_jump
:
542 assert(!"Invalid ALU instruction type");
550 validate_phi_src(nir_phi_instr
*instr
, nir_block
*pred
, validate_state
*state
)
552 state
->instr
= &instr
->instr
;
554 assert(instr
->dest
.is_ssa
);
556 exec_list_validate(&instr
->srcs
);
557 nir_foreach_phi_src(instr
, src
) {
558 if (src
->pred
== pred
) {
559 assert(src
->src
.is_ssa
);
560 assert(src
->src
.ssa
->num_components
==
561 instr
->dest
.ssa
.num_components
);
563 validate_src(&src
->src
, state
);
573 validate_phi_srcs(nir_block
*block
, nir_block
*succ
, validate_state
*state
)
575 nir_foreach_instr(succ
, instr
) {
576 if (instr
->type
!= nir_instr_type_phi
)
579 validate_phi_src(nir_instr_as_phi(instr
), block
, state
);
583 static void validate_cf_node(nir_cf_node
*node
, validate_state
*state
);
586 validate_block(nir_block
*block
, validate_state
*state
)
588 assert(block
->cf_node
.parent
== state
->parent_node
);
590 state
->block
= block
;
592 exec_list_validate(&block
->instr_list
);
593 nir_foreach_instr(block
, instr
) {
594 if (instr
->type
== nir_instr_type_phi
) {
595 assert(instr
== nir_block_first_instr(block
) ||
596 nir_instr_prev(instr
)->type
== nir_instr_type_phi
);
599 if (instr
->type
== nir_instr_type_jump
) {
600 assert(instr
== nir_block_last_instr(block
));
603 validate_instr(instr
, state
);
606 assert(block
->successors
[0] != NULL
);
607 assert(block
->successors
[0] != block
->successors
[1]);
609 for (unsigned i
= 0; i
< 2; i
++) {
610 if (block
->successors
[i
] != NULL
) {
611 struct set_entry
*entry
=
612 _mesa_set_search(block
->successors
[i
]->predecessors
, block
);
615 validate_phi_srcs(block
, block
->successors
[i
], state
);
619 struct set_entry
*entry
;
620 set_foreach(block
->predecessors
, entry
) {
621 const nir_block
*pred
= entry
->key
;
622 assert(pred
->successors
[0] == block
||
623 pred
->successors
[1] == block
);
626 if (!exec_list_is_empty(&block
->instr_list
) &&
627 nir_block_last_instr(block
)->type
== nir_instr_type_jump
) {
628 assert(block
->successors
[1] == NULL
);
629 nir_jump_instr
*jump
= nir_instr_as_jump(nir_block_last_instr(block
));
630 switch (jump
->type
) {
631 case nir_jump_break
: {
633 nir_cf_node_as_block(nir_cf_node_next(&state
->loop
->cf_node
));
634 assert(block
->successors
[0] == after
);
638 case nir_jump_continue
: {
640 nir_cf_node_as_block(nir_loop_first_cf_node(state
->loop
));
641 assert(block
->successors
[0] == first
);
645 case nir_jump_return
:
646 assert(block
->successors
[0] == state
->impl
->end_block
);
650 unreachable("bad jump type");
653 nir_cf_node
*next
= nir_cf_node_next(&block
->cf_node
);
655 switch (state
->parent_node
->type
) {
656 case nir_cf_node_loop
: {
658 nir_cf_node_as_block(nir_loop_first_cf_node(state
->loop
));
659 assert(block
->successors
[0] == first
);
660 /* due to the hack for infinite loops, block->successors[1] may
661 * point to the block after the loop.
666 case nir_cf_node_if
: {
668 nir_cf_node_as_block(nir_cf_node_next(state
->parent_node
));
669 assert(block
->successors
[0] == after
);
670 assert(block
->successors
[1] == NULL
);
674 case nir_cf_node_function
:
675 assert(block
->successors
[0] == state
->impl
->end_block
);
676 assert(block
->successors
[1] == NULL
);
680 unreachable("unknown control flow node type");
683 if (next
->type
== nir_cf_node_if
) {
684 nir_if
*if_stmt
= nir_cf_node_as_if(next
);
685 assert(&block
->successors
[0]->cf_node
==
686 nir_if_first_then_node(if_stmt
));
687 assert(&block
->successors
[1]->cf_node
==
688 nir_if_first_else_node(if_stmt
));
690 assert(next
->type
== nir_cf_node_loop
);
691 nir_loop
*loop
= nir_cf_node_as_loop(next
);
692 assert(&block
->successors
[0]->cf_node
==
693 nir_loop_first_cf_node(loop
));
694 assert(block
->successors
[1] == NULL
);
701 validate_if(nir_if
*if_stmt
, validate_state
*state
)
703 state
->if_stmt
= if_stmt
;
705 assert(!exec_node_is_head_sentinel(if_stmt
->cf_node
.node
.prev
));
706 nir_cf_node
*prev_node
= nir_cf_node_prev(&if_stmt
->cf_node
);
707 assert(prev_node
->type
== nir_cf_node_block
);
709 assert(!exec_node_is_tail_sentinel(if_stmt
->cf_node
.node
.next
));
710 nir_cf_node
*next_node
= nir_cf_node_next(&if_stmt
->cf_node
);
711 assert(next_node
->type
== nir_cf_node_block
);
713 validate_src(&if_stmt
->condition
, state
);
715 assert(!exec_list_is_empty(&if_stmt
->then_list
));
716 assert(!exec_list_is_empty(&if_stmt
->else_list
));
718 nir_cf_node
*old_parent
= state
->parent_node
;
719 state
->parent_node
= &if_stmt
->cf_node
;
721 exec_list_validate(&if_stmt
->then_list
);
722 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->then_list
) {
723 validate_cf_node(cf_node
, state
);
726 exec_list_validate(&if_stmt
->else_list
);
727 foreach_list_typed(nir_cf_node
, cf_node
, node
, &if_stmt
->else_list
) {
728 validate_cf_node(cf_node
, state
);
731 state
->parent_node
= old_parent
;
732 state
->if_stmt
= NULL
;
736 validate_loop(nir_loop
*loop
, validate_state
*state
)
738 assert(!exec_node_is_head_sentinel(loop
->cf_node
.node
.prev
));
739 nir_cf_node
*prev_node
= nir_cf_node_prev(&loop
->cf_node
);
740 assert(prev_node
->type
== nir_cf_node_block
);
742 assert(!exec_node_is_tail_sentinel(loop
->cf_node
.node
.next
));
743 nir_cf_node
*next_node
= nir_cf_node_next(&loop
->cf_node
);
744 assert(next_node
->type
== nir_cf_node_block
);
746 assert(!exec_list_is_empty(&loop
->body
));
748 nir_cf_node
*old_parent
= state
->parent_node
;
749 state
->parent_node
= &loop
->cf_node
;
750 nir_loop
*old_loop
= state
->loop
;
753 exec_list_validate(&loop
->body
);
754 foreach_list_typed(nir_cf_node
, cf_node
, node
, &loop
->body
) {
755 validate_cf_node(cf_node
, state
);
758 state
->parent_node
= old_parent
;
759 state
->loop
= old_loop
;
763 validate_cf_node(nir_cf_node
*node
, validate_state
*state
)
765 assert(node
->parent
== state
->parent_node
);
767 switch (node
->type
) {
768 case nir_cf_node_block
:
769 validate_block(nir_cf_node_as_block(node
), state
);
773 validate_if(nir_cf_node_as_if(node
), state
);
776 case nir_cf_node_loop
:
777 validate_loop(nir_cf_node_as_loop(node
), state
);
781 unreachable("Invalid CF node type");
786 prevalidate_reg_decl(nir_register
*reg
, bool is_global
, validate_state
*state
)
788 assert(reg
->is_global
== is_global
);
791 assert(reg
->index
< state
->shader
->reg_alloc
);
793 assert(reg
->index
< state
->impl
->reg_alloc
);
794 assert(!BITSET_TEST(state
->regs_found
, reg
->index
));
795 BITSET_SET(state
->regs_found
, reg
->index
);
797 list_validate(®
->uses
);
798 list_validate(®
->defs
);
799 list_validate(®
->if_uses
);
801 reg_validate_state
*reg_state
= ralloc(state
->regs
, reg_validate_state
);
802 reg_state
->uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
803 _mesa_key_pointer_equal
);
804 reg_state
->if_uses
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
805 _mesa_key_pointer_equal
);
806 reg_state
->defs
= _mesa_set_create(reg_state
, _mesa_hash_pointer
,
807 _mesa_key_pointer_equal
);
809 reg_state
->where_defined
= is_global
? NULL
: state
->impl
;
811 _mesa_hash_table_insert(state
->regs
, reg
, reg_state
);
815 postvalidate_reg_decl(nir_register
*reg
, validate_state
*state
)
817 struct hash_entry
*entry
= _mesa_hash_table_search(state
->regs
, reg
);
819 reg_validate_state
*reg_state
= (reg_validate_state
*) entry
->data
;
821 nir_foreach_use(reg
, src
) {
822 struct set_entry
*entry
= _mesa_set_search(reg_state
->uses
, src
);
824 _mesa_set_remove(reg_state
->uses
, entry
);
827 if (reg_state
->uses
->entries
!= 0) {
828 printf("extra entries in register uses:\n");
829 struct set_entry
*entry
;
830 set_foreach(reg_state
->uses
, entry
)
831 printf("%p\n", entry
->key
);
836 nir_foreach_if_use(reg
, src
) {
837 struct set_entry
*entry
= _mesa_set_search(reg_state
->if_uses
, src
);
839 _mesa_set_remove(reg_state
->if_uses
, entry
);
842 if (reg_state
->if_uses
->entries
!= 0) {
843 printf("extra entries in register if_uses:\n");
844 struct set_entry
*entry
;
845 set_foreach(reg_state
->if_uses
, entry
)
846 printf("%p\n", entry
->key
);
851 nir_foreach_def(reg
, src
) {
852 struct set_entry
*entry
= _mesa_set_search(reg_state
->defs
, src
);
854 _mesa_set_remove(reg_state
->defs
, entry
);
857 if (reg_state
->defs
->entries
!= 0) {
858 printf("extra entries in register defs:\n");
859 struct set_entry
*entry
;
860 set_foreach(reg_state
->defs
, entry
)
861 printf("%p\n", entry
->key
);
868 validate_var_decl(nir_variable
*var
, bool is_global
, validate_state
*state
)
870 assert(is_global
== nir_variable_is_global(var
));
873 * TODO validate some things ir_validate.cpp does (requires more GLSL type
878 _mesa_hash_table_insert(state
->var_defs
, var
, state
->impl
);
883 postvalidate_ssa_def(nir_ssa_def
*def
, void *void_state
)
885 validate_state
*state
= void_state
;
887 struct hash_entry
*entry
= _mesa_hash_table_search(state
->ssa_defs
, def
);
888 ssa_def_validate_state
*def_state
= (ssa_def_validate_state
*)entry
->data
;
890 nir_foreach_use(def
, src
) {
891 struct set_entry
*entry
= _mesa_set_search(def_state
->uses
, src
);
893 _mesa_set_remove(def_state
->uses
, entry
);
896 if (def_state
->uses
->entries
!= 0) {
897 printf("extra entries in register uses:\n");
898 struct set_entry
*entry
;
899 set_foreach(def_state
->uses
, entry
)
900 printf("%p\n", entry
->key
);
905 nir_foreach_if_use(def
, src
) {
906 struct set_entry
*entry
= _mesa_set_search(def_state
->if_uses
, src
);
908 _mesa_set_remove(def_state
->if_uses
, entry
);
911 if (def_state
->if_uses
->entries
!= 0) {
912 printf("extra entries in register uses:\n");
913 struct set_entry
*entry
;
914 set_foreach(def_state
->if_uses
, entry
)
915 printf("%p\n", entry
->key
);
924 postvalidate_ssa_defs_block(nir_block
*block
, void *state
)
926 nir_foreach_instr(block
, instr
)
927 nir_foreach_ssa_def(instr
, postvalidate_ssa_def
, state
);
933 validate_function_impl(nir_function_impl
*impl
, validate_state
*state
)
935 assert(impl
->function
->impl
== impl
);
936 assert(impl
->cf_node
.parent
== NULL
);
938 assert(impl
->num_params
== impl
->function
->num_params
);
939 for (unsigned i
= 0; i
< impl
->num_params
; i
++) {
940 assert(impl
->params
[i
]->type
== impl
->function
->params
[i
].type
);
941 assert(impl
->params
[i
]->data
.location
== i
);
942 validate_var_decl(impl
->params
[i
], false, state
);
945 if (glsl_type_is_void(impl
->function
->return_type
)) {
946 assert(impl
->return_var
== NULL
);
948 assert(impl
->return_var
->type
== impl
->function
->return_type
);
949 assert(impl
->return_var
->data
.location
== -1);
950 validate_var_decl(impl
->return_var
, false, state
);
953 assert(exec_list_is_empty(&impl
->end_block
->instr_list
));
954 assert(impl
->end_block
->successors
[0] == NULL
);
955 assert(impl
->end_block
->successors
[1] == NULL
);
958 state
->parent_node
= &impl
->cf_node
;
960 exec_list_validate(&impl
->locals
);
961 nir_foreach_variable(var
, &impl
->locals
) {
962 validate_var_decl(var
, false, state
);
965 state
->regs_found
= realloc(state
->regs_found
,
966 BITSET_WORDS(impl
->reg_alloc
) *
967 sizeof(BITSET_WORD
));
968 memset(state
->regs_found
, 0, BITSET_WORDS(impl
->reg_alloc
) *
969 sizeof(BITSET_WORD
));
970 exec_list_validate(&impl
->registers
);
971 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
972 prevalidate_reg_decl(reg
, false, state
);
975 state
->ssa_defs_found
= realloc(state
->ssa_defs_found
,
976 BITSET_WORDS(impl
->ssa_alloc
) *
977 sizeof(BITSET_WORD
));
978 memset(state
->ssa_defs_found
, 0, BITSET_WORDS(impl
->ssa_alloc
) *
979 sizeof(BITSET_WORD
));
980 exec_list_validate(&impl
->body
);
981 foreach_list_typed(nir_cf_node
, node
, node
, &impl
->body
) {
982 validate_cf_node(node
, state
);
985 foreach_list_typed(nir_register
, reg
, node
, &impl
->registers
) {
986 postvalidate_reg_decl(reg
, state
);
989 nir_foreach_block(impl
, postvalidate_ssa_defs_block
, state
);
993 validate_function(nir_function
*func
, validate_state
*state
)
995 if (func
->impl
!= NULL
) {
996 assert(func
->impl
->function
== func
);
997 validate_function_impl(func
->impl
, state
);
1002 init_validate_state(validate_state
*state
)
1004 state
->regs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1005 _mesa_key_pointer_equal
);
1006 state
->ssa_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1007 _mesa_key_pointer_equal
);
1008 state
->ssa_defs_found
= NULL
;
1009 state
->regs_found
= NULL
;
1010 state
->var_defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
1011 _mesa_key_pointer_equal
);
1016 destroy_validate_state(validate_state
*state
)
1018 _mesa_hash_table_destroy(state
->regs
, NULL
);
1019 _mesa_hash_table_destroy(state
->ssa_defs
, NULL
);
1020 free(state
->ssa_defs_found
);
1021 free(state
->regs_found
);
1022 _mesa_hash_table_destroy(state
->var_defs
, NULL
);
1026 nir_validate_shader(nir_shader
*shader
)
1028 validate_state state
;
1029 init_validate_state(&state
);
1031 state
.shader
= shader
;
1033 exec_list_validate(&shader
->uniforms
);
1034 nir_foreach_variable(var
, &shader
->uniforms
) {
1035 validate_var_decl(var
, true, &state
);
1038 exec_list_validate(&shader
->inputs
);
1039 nir_foreach_variable(var
, &shader
->inputs
) {
1040 validate_var_decl(var
, true, &state
);
1043 exec_list_validate(&shader
->outputs
);
1044 nir_foreach_variable(var
, &shader
->outputs
) {
1045 validate_var_decl(var
, true, &state
);
1048 exec_list_validate(&shader
->shared
);
1049 nir_foreach_variable(var
, &shader
->shared
) {
1050 validate_var_decl(var
, true, &state
);
1053 exec_list_validate(&shader
->globals
);
1054 nir_foreach_variable(var
, &shader
->globals
) {
1055 validate_var_decl(var
, true, &state
);
1058 exec_list_validate(&shader
->system_values
);
1059 nir_foreach_variable(var
, &shader
->system_values
) {
1060 validate_var_decl(var
, true, &state
);
1063 state
.regs_found
= realloc(state
.regs_found
,
1064 BITSET_WORDS(shader
->reg_alloc
) *
1065 sizeof(BITSET_WORD
));
1066 memset(state
.regs_found
, 0, BITSET_WORDS(shader
->reg_alloc
) *
1067 sizeof(BITSET_WORD
));
1068 exec_list_validate(&shader
->registers
);
1069 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
1070 prevalidate_reg_decl(reg
, true, &state
);
1073 exec_list_validate(&shader
->functions
);
1074 foreach_list_typed(nir_function
, func
, node
, &shader
->functions
) {
1075 validate_function(func
, &state
);
1078 foreach_list_typed(nir_register
, reg
, node
, &shader
->registers
) {
1079 postvalidate_reg_decl(reg
, &state
);
1082 destroy_validate_state(&state
);