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)
28 #include "glsl_to_nir.h"
29 #include "ir_visitor.h"
30 #include "ir_hierarchical_visitor.h"
32 #include "compiler/nir/nir_control_flow.h"
33 #include "compiler/nir/nir_builder.h"
34 #include "main/imports.h"
35 #include "main/mtypes.h"
36 #include "util/u_math.h"
39 * pass to lower GLSL IR to NIR
41 * This will lower variable dereferences to loads/stores of corresponding
42 * variables in NIR - the variables will be converted to registers in a later
48 class nir_visitor
: public ir_visitor
51 nir_visitor(nir_shader
*shader
);
54 virtual void visit(ir_variable
*);
55 virtual void visit(ir_function
*);
56 virtual void visit(ir_function_signature
*);
57 virtual void visit(ir_loop
*);
58 virtual void visit(ir_if
*);
59 virtual void visit(ir_discard
*);
60 virtual void visit(ir_loop_jump
*);
61 virtual void visit(ir_return
*);
62 virtual void visit(ir_call
*);
63 virtual void visit(ir_assignment
*);
64 virtual void visit(ir_emit_vertex
*);
65 virtual void visit(ir_end_primitive
*);
66 virtual void visit(ir_expression
*);
67 virtual void visit(ir_swizzle
*);
68 virtual void visit(ir_texture
*);
69 virtual void visit(ir_constant
*);
70 virtual void visit(ir_dereference_variable
*);
71 virtual void visit(ir_dereference_record
*);
72 virtual void visit(ir_dereference_array
*);
73 virtual void visit(ir_barrier
*);
75 void create_function(ir_function_signature
*ir
);
78 void add_instr(nir_instr
*instr
, unsigned num_components
, unsigned bit_size
);
79 nir_ssa_def
*evaluate_rvalue(ir_rvalue
*ir
);
81 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
**srcs
);
82 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
);
83 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
85 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
86 nir_ssa_def
*src2
, nir_ssa_def
*src3
);
91 nir_function_impl
*impl
;
93 nir_ssa_def
*result
; /* result of the expression tree last visited */
95 nir_deref_instr
*evaluate_deref(ir_instruction
*ir
);
97 nir_constant
*constant_copy(ir_constant
*ir
, void *mem_ctx
);
99 /* most recent deref instruction created */
100 nir_deref_instr
*deref
;
102 /* whether the IR we're operating on is per-function or global */
105 ir_function_signature
*sig
;
107 /* map of ir_variable -> nir_variable */
108 struct hash_table
*var_table
;
110 /* map of ir_function_signature -> nir_function_overload */
111 struct hash_table
*overload_table
;
115 * This visitor runs before the main visitor, calling create_function() for
116 * each function so that the main visitor can resolve forward references in
120 class nir_function_visitor
: public ir_hierarchical_visitor
123 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
126 virtual ir_visitor_status
visit_enter(ir_function
*);
129 nir_visitor
*visitor
;
132 } /* end of anonymous namespace */
135 glsl_to_nir(const struct gl_shader_program
*shader_prog
,
136 gl_shader_stage stage
,
137 const nir_shader_compiler_options
*options
)
139 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
141 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
144 nir_visitor
v1(shader
);
145 nir_function_visitor
v2(&v1
);
147 visit_exec_list(sh
->ir
, &v1
);
149 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
151 /* Remap the locations to slots so those requiring two slots will occupy
152 * two locations. For instance, if we have in the IR code a dvec3 attr0 in
153 * location 0 and vec4 attr1 in location 1, in NIR attr0 will use
154 * locations/slots 0 and 1, and attr1 will use location/slot 2 */
155 if (shader
->info
.stage
== MESA_SHADER_VERTEX
)
156 nir_remap_dual_slot_attributes(shader
, &sh
->Program
->DualSlotInputs
);
158 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
159 if (shader_prog
->Label
)
160 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
162 /* Check for transform feedback varyings specified via the API */
163 shader
->info
.has_transform_feedback_varyings
=
164 shader_prog
->TransformFeedback
.NumVarying
> 0;
166 /* Check for transform feedback varyings specified in the Shader */
167 if (shader_prog
->last_vert_prog
)
168 shader
->info
.has_transform_feedback_varyings
|=
169 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
174 nir_visitor::nir_visitor(nir_shader
*shader
)
176 this->supports_ints
= shader
->options
->native_integers
;
177 this->shader
= shader
;
178 this->is_global
= true;
179 this->var_table
= _mesa_pointer_hash_table_create(NULL
);
180 this->overload_table
= _mesa_pointer_hash_table_create(NULL
);
184 memset(&this->b
, 0, sizeof(this->b
));
187 nir_visitor::~nir_visitor()
189 _mesa_hash_table_destroy(this->var_table
, NULL
);
190 _mesa_hash_table_destroy(this->overload_table
, NULL
);
194 nir_visitor::evaluate_deref(ir_instruction
*ir
)
201 nir_visitor::constant_copy(ir_constant
*ir
, void *mem_ctx
)
206 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
208 const unsigned rows
= ir
->type
->vector_elements
;
209 const unsigned cols
= ir
->type
->matrix_columns
;
212 ret
->num_elements
= 0;
213 switch (ir
->type
->base_type
) {
215 /* Only float base types can be matrices. */
218 for (unsigned r
= 0; r
< rows
; r
++)
220 ret
->values
[0].u32
[r
] = ir
->value
.u
[r
];
222 ret
->values
[0].f32
[r
] = ir
->value
.u
[r
];
227 /* Only float base types can be matrices. */
230 for (unsigned r
= 0; r
< rows
; r
++)
232 ret
->values
[0].i32
[r
] = ir
->value
.i
[r
];
234 ret
->values
[0].f32
[r
] = ir
->value
.i
[r
];
238 case GLSL_TYPE_FLOAT
:
239 for (unsigned c
= 0; c
< cols
; c
++) {
240 for (unsigned r
= 0; r
< rows
; r
++)
241 ret
->values
[c
].f32
[r
] = ir
->value
.f
[c
* rows
+ r
];
245 case GLSL_TYPE_DOUBLE
:
246 for (unsigned c
= 0; c
< cols
; c
++) {
247 for (unsigned r
= 0; r
< rows
; r
++)
248 ret
->values
[c
].f64
[r
] = ir
->value
.d
[c
* rows
+ r
];
252 case GLSL_TYPE_UINT64
:
253 /* Only float base types can be matrices. */
256 for (unsigned r
= 0; r
< rows
; r
++)
257 ret
->values
[0].u64
[r
] = ir
->value
.u64
[r
];
260 case GLSL_TYPE_INT64
:
261 /* Only float base types can be matrices. */
264 for (unsigned r
= 0; r
< rows
; r
++)
265 ret
->values
[0].i64
[r
] = ir
->value
.i64
[r
];
269 /* Only float base types can be matrices. */
272 for (unsigned r
= 0; r
< rows
; r
++)
273 ret
->values
[0].b
[r
] = ir
->value
.b
[r
];
277 case GLSL_TYPE_STRUCT
:
278 case GLSL_TYPE_ARRAY
:
279 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
281 ret
->num_elements
= ir
->type
->length
;
283 for (i
= 0; i
< ir
->type
->length
; i
++)
284 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
288 unreachable("not reached");
295 nir_visitor::visit(ir_variable
*ir
)
297 /* TODO: In future we should switch to using the NIR lowering pass but for
298 * now just ignore these variables as GLSL IR should have lowered them.
299 * Anything remaining are just dead vars that weren't cleaned up.
301 if (ir
->data
.mode
== ir_var_shader_shared
)
304 /* FINISHME: inout parameters */
305 assert(ir
->data
.mode
!= ir_var_function_inout
);
307 if (ir
->data
.mode
== ir_var_function_out
)
310 nir_variable
*var
= rzalloc(shader
, nir_variable
);
311 var
->type
= ir
->type
;
312 var
->name
= ralloc_strdup(var
, ir
->name
);
314 var
->data
.always_active_io
= ir
->data
.always_active_io
;
315 var
->data
.read_only
= ir
->data
.read_only
;
316 var
->data
.centroid
= ir
->data
.centroid
;
317 var
->data
.sample
= ir
->data
.sample
;
318 var
->data
.patch
= ir
->data
.patch
;
319 var
->data
.invariant
= ir
->data
.invariant
;
320 var
->data
.location
= ir
->data
.location
;
321 var
->data
.stream
= ir
->data
.stream
;
322 var
->data
.compact
= false;
324 switch(ir
->data
.mode
) {
326 case ir_var_temporary
:
328 var
->data
.mode
= nir_var_shader_temp
;
330 var
->data
.mode
= nir_var_function_temp
;
333 case ir_var_function_in
:
334 case ir_var_const_in
:
335 var
->data
.mode
= nir_var_function_temp
;
338 case ir_var_shader_in
:
339 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
&&
340 ir
->data
.location
== VARYING_SLOT_FACE
) {
341 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
342 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
343 var
->data
.mode
= nir_var_system_value
;
344 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
345 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
346 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
347 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
348 var
->data
.mode
= nir_var_system_value
;
350 var
->data
.mode
= nir_var_shader_in
;
352 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
353 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
354 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
355 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
358 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
359 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
360 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
361 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
366 case ir_var_shader_out
:
367 var
->data
.mode
= nir_var_shader_out
;
368 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
369 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
370 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
371 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
374 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
375 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
376 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
377 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
382 if (ir
->get_interface_type())
383 var
->data
.mode
= nir_var_mem_ubo
;
385 var
->data
.mode
= nir_var_uniform
;
388 case ir_var_shader_storage
:
389 var
->data
.mode
= nir_var_mem_ssbo
;
392 case ir_var_system_value
:
393 var
->data
.mode
= nir_var_system_value
;
397 unreachable("not reached");
400 var
->data
.interpolation
= ir
->data
.interpolation
;
401 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
402 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
403 var
->data
.location_frac
= ir
->data
.location_frac
;
405 switch (ir
->data
.depth_layout
) {
406 case ir_depth_layout_none
:
407 var
->data
.depth_layout
= nir_depth_layout_none
;
409 case ir_depth_layout_any
:
410 var
->data
.depth_layout
= nir_depth_layout_any
;
412 case ir_depth_layout_greater
:
413 var
->data
.depth_layout
= nir_depth_layout_greater
;
415 case ir_depth_layout_less
:
416 var
->data
.depth_layout
= nir_depth_layout_less
;
418 case ir_depth_layout_unchanged
:
419 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
422 unreachable("not reached");
425 var
->data
.index
= ir
->data
.index
;
426 var
->data
.descriptor_set
= 0;
427 var
->data
.binding
= ir
->data
.binding
;
428 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
429 var
->data
.bindless
= ir
->data
.bindless
;
430 var
->data
.offset
= ir
->data
.offset
;
432 unsigned image_access
= 0;
433 if (ir
->data
.memory_read_only
)
434 image_access
|= ACCESS_NON_WRITEABLE
;
435 if (ir
->data
.memory_write_only
)
436 image_access
|= ACCESS_NON_READABLE
;
437 if (ir
->data
.memory_coherent
)
438 image_access
|= ACCESS_COHERENT
;
439 if (ir
->data
.memory_volatile
)
440 image_access
|= ACCESS_VOLATILE
;
441 if (ir
->data
.memory_restrict
)
442 image_access
|= ACCESS_RESTRICT
;
443 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
444 var
->data
.image
.format
= ir
->data
.image_format
;
446 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
447 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
448 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
449 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
450 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
452 var
->num_state_slots
= ir
->get_num_state_slots();
453 if (var
->num_state_slots
> 0) {
454 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
455 var
->num_state_slots
);
457 ir_state_slot
*state_slots
= ir
->get_state_slots();
458 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
459 for (unsigned j
= 0; j
< 5; j
++)
460 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
461 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
464 var
->state_slots
= NULL
;
467 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
469 var
->interface_type
= ir
->get_interface_type();
471 if (var
->data
.mode
== nir_var_function_temp
)
472 nir_function_impl_add_variable(impl
, var
);
474 nir_shader_add_variable(shader
, var
);
476 _mesa_hash_table_insert(var_table
, ir
, var
);
480 nir_function_visitor::visit_enter(ir_function
*ir
)
482 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
483 visitor
->create_function(sig
);
485 return visit_continue_with_parent
;
489 nir_visitor::create_function(ir_function_signature
*ir
)
491 if (ir
->is_intrinsic())
494 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
495 if (strcmp(ir
->function_name(), "main") == 0)
496 func
->is_entrypoint
= true;
498 func
->num_params
= ir
->parameters
.length() +
499 (ir
->return_type
!= glsl_type::void_type
);
500 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
504 if (ir
->return_type
!= glsl_type::void_type
) {
505 /* The return value is a variable deref (basically an out parameter) */
506 func
->params
[np
].num_components
= 1;
507 func
->params
[np
].bit_size
= 32;
511 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
512 /* FINISHME: pass arrays, structs, etc by reference? */
513 assert(param
->type
->is_vector() || param
->type
->is_scalar());
515 if (param
->data
.mode
== ir_var_function_in
) {
516 func
->params
[np
].num_components
= param
->type
->vector_elements
;
517 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
519 func
->params
[np
].num_components
= 1;
520 func
->params
[np
].bit_size
= 32;
524 assert(np
== func
->num_params
);
526 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
530 nir_visitor::visit(ir_function
*ir
)
532 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
537 nir_visitor::visit(ir_function_signature
*ir
)
539 if (ir
->is_intrinsic())
544 struct hash_entry
*entry
=
545 _mesa_hash_table_search(this->overload_table
, ir
);
548 nir_function
*func
= (nir_function
*) entry
->data
;
550 if (ir
->is_defined
) {
551 nir_function_impl
*impl
= nir_function_impl_create(func
);
554 this->is_global
= false;
556 nir_builder_init(&b
, impl
);
557 b
.cursor
= nir_after_cf_list(&impl
->body
);
559 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
561 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
563 nir_local_variable_create(impl
, param
->type
, param
->name
);
565 if (param
->data
.mode
== ir_var_function_in
) {
566 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
569 _mesa_hash_table_insert(var_table
, param
, var
);
573 visit_exec_list(&ir
->body
, this);
575 this->is_global
= true;
582 nir_visitor::visit(ir_loop
*ir
)
585 visit_exec_list(&ir
->body_instructions
, this);
586 nir_pop_loop(&b
, NULL
);
590 nir_visitor::visit(ir_if
*ir
)
592 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
593 visit_exec_list(&ir
->then_instructions
, this);
594 nir_push_else(&b
, NULL
);
595 visit_exec_list(&ir
->else_instructions
, this);
596 nir_pop_if(&b
, NULL
);
600 nir_visitor::visit(ir_discard
*ir
)
603 * discards aren't treated as control flow, because before we lower them
604 * they can appear anywhere in the shader and the stuff after them may still
605 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
606 * discards will be immediately followed by a return.
609 nir_intrinsic_instr
*discard
;
611 discard
= nir_intrinsic_instr_create(this->shader
,
612 nir_intrinsic_discard_if
);
614 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
616 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
619 nir_builder_instr_insert(&b
, &discard
->instr
);
623 nir_visitor::visit(ir_emit_vertex
*ir
)
625 nir_intrinsic_instr
*instr
=
626 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
627 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
628 nir_builder_instr_insert(&b
, &instr
->instr
);
632 nir_visitor::visit(ir_end_primitive
*ir
)
634 nir_intrinsic_instr
*instr
=
635 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
636 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
637 nir_builder_instr_insert(&b
, &instr
->instr
);
641 nir_visitor::visit(ir_loop_jump
*ir
)
645 case ir_loop_jump::jump_break
:
646 type
= nir_jump_break
;
648 case ir_loop_jump::jump_continue
:
649 type
= nir_jump_continue
;
652 unreachable("not reached");
655 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
656 nir_builder_instr_insert(&b
, &instr
->instr
);
660 nir_visitor::visit(ir_return
*ir
)
662 if (ir
->value
!= NULL
) {
663 nir_deref_instr
*ret_deref
=
664 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
665 nir_var_function_temp
, ir
->value
->type
, 0);
667 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
668 nir_store_deref(&b
, ret_deref
, val
, ~0);
671 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
672 nir_builder_instr_insert(&b
, &instr
->instr
);
676 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
678 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
679 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
680 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
684 nir_visitor::visit(ir_call
*ir
)
686 if (ir
->callee
->is_intrinsic()) {
689 switch (ir
->callee
->intrinsic_id
) {
690 case ir_intrinsic_atomic_counter_read
:
691 op
= nir_intrinsic_atomic_counter_read_deref
;
693 case ir_intrinsic_atomic_counter_increment
:
694 op
= nir_intrinsic_atomic_counter_inc_deref
;
696 case ir_intrinsic_atomic_counter_predecrement
:
697 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
699 case ir_intrinsic_atomic_counter_add
:
700 op
= nir_intrinsic_atomic_counter_add_deref
;
702 case ir_intrinsic_atomic_counter_and
:
703 op
= nir_intrinsic_atomic_counter_and_deref
;
705 case ir_intrinsic_atomic_counter_or
:
706 op
= nir_intrinsic_atomic_counter_or_deref
;
708 case ir_intrinsic_atomic_counter_xor
:
709 op
= nir_intrinsic_atomic_counter_xor_deref
;
711 case ir_intrinsic_atomic_counter_min
:
712 op
= nir_intrinsic_atomic_counter_min_deref
;
714 case ir_intrinsic_atomic_counter_max
:
715 op
= nir_intrinsic_atomic_counter_max_deref
;
717 case ir_intrinsic_atomic_counter_exchange
:
718 op
= nir_intrinsic_atomic_counter_exchange_deref
;
720 case ir_intrinsic_atomic_counter_comp_swap
:
721 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
723 case ir_intrinsic_image_load
:
724 op
= nir_intrinsic_image_deref_load
;
726 case ir_intrinsic_image_store
:
727 op
= nir_intrinsic_image_deref_store
;
729 case ir_intrinsic_image_atomic_add
:
730 op
= ir
->return_deref
->type
->is_integer_32_64()
731 ? nir_intrinsic_image_deref_atomic_add
732 : nir_intrinsic_image_deref_atomic_fadd
;
734 case ir_intrinsic_image_atomic_min
:
735 op
= nir_intrinsic_image_deref_atomic_min
;
737 case ir_intrinsic_image_atomic_max
:
738 op
= nir_intrinsic_image_deref_atomic_max
;
740 case ir_intrinsic_image_atomic_and
:
741 op
= nir_intrinsic_image_deref_atomic_and
;
743 case ir_intrinsic_image_atomic_or
:
744 op
= nir_intrinsic_image_deref_atomic_or
;
746 case ir_intrinsic_image_atomic_xor
:
747 op
= nir_intrinsic_image_deref_atomic_xor
;
749 case ir_intrinsic_image_atomic_exchange
:
750 op
= nir_intrinsic_image_deref_atomic_exchange
;
752 case ir_intrinsic_image_atomic_comp_swap
:
753 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
755 case ir_intrinsic_memory_barrier
:
756 op
= nir_intrinsic_memory_barrier
;
758 case ir_intrinsic_image_size
:
759 op
= nir_intrinsic_image_deref_size
;
761 case ir_intrinsic_image_samples
:
762 op
= nir_intrinsic_image_deref_samples
;
764 case ir_intrinsic_ssbo_store
:
765 op
= nir_intrinsic_store_ssbo
;
767 case ir_intrinsic_ssbo_load
:
768 op
= nir_intrinsic_load_ssbo
;
770 case ir_intrinsic_ssbo_atomic_add
:
771 op
= ir
->return_deref
->type
->is_integer_32_64()
772 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
774 case ir_intrinsic_ssbo_atomic_and
:
775 op
= nir_intrinsic_ssbo_atomic_and
;
777 case ir_intrinsic_ssbo_atomic_or
:
778 op
= nir_intrinsic_ssbo_atomic_or
;
780 case ir_intrinsic_ssbo_atomic_xor
:
781 op
= nir_intrinsic_ssbo_atomic_xor
;
783 case ir_intrinsic_ssbo_atomic_min
:
784 assert(ir
->return_deref
);
785 if (ir
->return_deref
->type
== glsl_type::int_type
)
786 op
= nir_intrinsic_ssbo_atomic_imin
;
787 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
788 op
= nir_intrinsic_ssbo_atomic_umin
;
789 else if (ir
->return_deref
->type
== glsl_type::float_type
)
790 op
= nir_intrinsic_ssbo_atomic_fmin
;
792 unreachable("Invalid type");
794 case ir_intrinsic_ssbo_atomic_max
:
795 assert(ir
->return_deref
);
796 if (ir
->return_deref
->type
== glsl_type::int_type
)
797 op
= nir_intrinsic_ssbo_atomic_imax
;
798 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
799 op
= nir_intrinsic_ssbo_atomic_umax
;
800 else if (ir
->return_deref
->type
== glsl_type::float_type
)
801 op
= nir_intrinsic_ssbo_atomic_fmax
;
803 unreachable("Invalid type");
805 case ir_intrinsic_ssbo_atomic_exchange
:
806 op
= nir_intrinsic_ssbo_atomic_exchange
;
808 case ir_intrinsic_ssbo_atomic_comp_swap
:
809 op
= ir
->return_deref
->type
->is_integer_32_64()
810 ? nir_intrinsic_ssbo_atomic_comp_swap
811 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
813 case ir_intrinsic_shader_clock
:
814 op
= nir_intrinsic_shader_clock
;
816 case ir_intrinsic_begin_invocation_interlock
:
817 op
= nir_intrinsic_begin_invocation_interlock
;
819 case ir_intrinsic_end_invocation_interlock
:
820 op
= nir_intrinsic_end_invocation_interlock
;
822 case ir_intrinsic_group_memory_barrier
:
823 op
= nir_intrinsic_group_memory_barrier
;
825 case ir_intrinsic_memory_barrier_atomic_counter
:
826 op
= nir_intrinsic_memory_barrier_atomic_counter
;
828 case ir_intrinsic_memory_barrier_buffer
:
829 op
= nir_intrinsic_memory_barrier_buffer
;
831 case ir_intrinsic_memory_barrier_image
:
832 op
= nir_intrinsic_memory_barrier_image
;
834 case ir_intrinsic_memory_barrier_shared
:
835 op
= nir_intrinsic_memory_barrier_shared
;
837 case ir_intrinsic_shared_load
:
838 op
= nir_intrinsic_load_shared
;
840 case ir_intrinsic_shared_store
:
841 op
= nir_intrinsic_store_shared
;
843 case ir_intrinsic_shared_atomic_add
:
844 op
= ir
->return_deref
->type
->is_integer_32_64()
845 ? nir_intrinsic_shared_atomic_add
846 : nir_intrinsic_shared_atomic_fadd
;
848 case ir_intrinsic_shared_atomic_and
:
849 op
= nir_intrinsic_shared_atomic_and
;
851 case ir_intrinsic_shared_atomic_or
:
852 op
= nir_intrinsic_shared_atomic_or
;
854 case ir_intrinsic_shared_atomic_xor
:
855 op
= nir_intrinsic_shared_atomic_xor
;
857 case ir_intrinsic_shared_atomic_min
:
858 assert(ir
->return_deref
);
859 if (ir
->return_deref
->type
== glsl_type::int_type
)
860 op
= nir_intrinsic_shared_atomic_imin
;
861 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
862 op
= nir_intrinsic_shared_atomic_umin
;
863 else if (ir
->return_deref
->type
== glsl_type::float_type
)
864 op
= nir_intrinsic_shared_atomic_fmin
;
866 unreachable("Invalid type");
868 case ir_intrinsic_shared_atomic_max
:
869 assert(ir
->return_deref
);
870 if (ir
->return_deref
->type
== glsl_type::int_type
)
871 op
= nir_intrinsic_shared_atomic_imax
;
872 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
873 op
= nir_intrinsic_shared_atomic_umax
;
874 else if (ir
->return_deref
->type
== glsl_type::float_type
)
875 op
= nir_intrinsic_shared_atomic_fmax
;
877 unreachable("Invalid type");
879 case ir_intrinsic_shared_atomic_exchange
:
880 op
= nir_intrinsic_shared_atomic_exchange
;
882 case ir_intrinsic_shared_atomic_comp_swap
:
883 op
= ir
->return_deref
->type
->is_integer_32_64()
884 ? nir_intrinsic_shared_atomic_comp_swap
885 : nir_intrinsic_shared_atomic_fcomp_swap
;
887 case ir_intrinsic_vote_any
:
888 op
= nir_intrinsic_vote_any
;
890 case ir_intrinsic_vote_all
:
891 op
= nir_intrinsic_vote_all
;
893 case ir_intrinsic_vote_eq
:
894 op
= nir_intrinsic_vote_ieq
;
896 case ir_intrinsic_ballot
:
897 op
= nir_intrinsic_ballot
;
899 case ir_intrinsic_read_invocation
:
900 op
= nir_intrinsic_read_invocation
;
902 case ir_intrinsic_read_first_invocation
:
903 op
= nir_intrinsic_read_first_invocation
;
906 unreachable("not reached");
909 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
910 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
913 case nir_intrinsic_atomic_counter_read_deref
:
914 case nir_intrinsic_atomic_counter_inc_deref
:
915 case nir_intrinsic_atomic_counter_pre_dec_deref
:
916 case nir_intrinsic_atomic_counter_add_deref
:
917 case nir_intrinsic_atomic_counter_min_deref
:
918 case nir_intrinsic_atomic_counter_max_deref
:
919 case nir_intrinsic_atomic_counter_and_deref
:
920 case nir_intrinsic_atomic_counter_or_deref
:
921 case nir_intrinsic_atomic_counter_xor_deref
:
922 case nir_intrinsic_atomic_counter_exchange_deref
:
923 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
924 /* Set the counter variable dereference. */
925 exec_node
*param
= ir
->actual_parameters
.get_head();
926 ir_dereference
*counter
= (ir_dereference
*)param
;
928 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
929 param
= param
->get_next();
931 /* Set the intrinsic destination. */
932 if (ir
->return_deref
) {
933 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
936 /* Set the intrinsic parameters. */
937 if (!param
->is_tail_sentinel()) {
939 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
940 param
= param
->get_next();
943 if (!param
->is_tail_sentinel()) {
945 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
946 param
= param
->get_next();
949 nir_builder_instr_insert(&b
, &instr
->instr
);
952 case nir_intrinsic_image_deref_load
:
953 case nir_intrinsic_image_deref_store
:
954 case nir_intrinsic_image_deref_atomic_add
:
955 case nir_intrinsic_image_deref_atomic_min
:
956 case nir_intrinsic_image_deref_atomic_max
:
957 case nir_intrinsic_image_deref_atomic_and
:
958 case nir_intrinsic_image_deref_atomic_or
:
959 case nir_intrinsic_image_deref_atomic_xor
:
960 case nir_intrinsic_image_deref_atomic_exchange
:
961 case nir_intrinsic_image_deref_atomic_comp_swap
:
962 case nir_intrinsic_image_deref_atomic_fadd
:
963 case nir_intrinsic_image_deref_samples
:
964 case nir_intrinsic_image_deref_size
: {
965 nir_ssa_undef_instr
*instr_undef
=
966 nir_ssa_undef_instr_create(shader
, 1, 32);
967 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
969 /* Set the image variable dereference. */
970 exec_node
*param
= ir
->actual_parameters
.get_head();
971 ir_dereference
*image
= (ir_dereference
*)param
;
972 const glsl_type
*type
=
973 image
->variable_referenced()->type
->without_array();
975 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
976 param
= param
->get_next();
978 /* Set the intrinsic destination. */
979 if (ir
->return_deref
) {
980 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
981 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
982 num_components
, 32, NULL
);
985 if (op
== nir_intrinsic_image_deref_size
) {
986 instr
->num_components
= instr
->dest
.ssa
.num_components
;
987 } else if (op
== nir_intrinsic_image_deref_load
||
988 op
== nir_intrinsic_image_deref_store
) {
989 instr
->num_components
= 4;
992 if (op
== nir_intrinsic_image_deref_size
||
993 op
== nir_intrinsic_image_deref_samples
) {
994 nir_builder_instr_insert(&b
, &instr
->instr
);
998 /* Set the address argument, extending the coordinate vector to four
1001 nir_ssa_def
*src_addr
=
1002 evaluate_rvalue((ir_dereference
*)param
);
1003 nir_ssa_def
*srcs
[4];
1005 for (int i
= 0; i
< 4; i
++) {
1006 if (i
< type
->coordinate_components())
1007 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1009 srcs
[i
] = &instr_undef
->def
;
1012 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1013 param
= param
->get_next();
1015 /* Set the sample argument, which is undefined for single-sample
1018 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1020 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1021 param
= param
->get_next();
1023 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1026 /* Set the intrinsic parameters. */
1027 if (!param
->is_tail_sentinel()) {
1029 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1030 param
= param
->get_next();
1033 if (!param
->is_tail_sentinel()) {
1035 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1036 param
= param
->get_next();
1038 nir_builder_instr_insert(&b
, &instr
->instr
);
1041 case nir_intrinsic_memory_barrier
:
1042 case nir_intrinsic_group_memory_barrier
:
1043 case nir_intrinsic_memory_barrier_atomic_counter
:
1044 case nir_intrinsic_memory_barrier_buffer
:
1045 case nir_intrinsic_memory_barrier_image
:
1046 case nir_intrinsic_memory_barrier_shared
:
1047 nir_builder_instr_insert(&b
, &instr
->instr
);
1049 case nir_intrinsic_shader_clock
:
1050 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1051 instr
->num_components
= 2;
1052 nir_builder_instr_insert(&b
, &instr
->instr
);
1054 case nir_intrinsic_begin_invocation_interlock
:
1055 nir_builder_instr_insert(&b
, &instr
->instr
);
1057 case nir_intrinsic_end_invocation_interlock
:
1058 nir_builder_instr_insert(&b
, &instr
->instr
);
1060 case nir_intrinsic_store_ssbo
: {
1061 exec_node
*param
= ir
->actual_parameters
.get_head();
1062 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1064 param
= param
->get_next();
1065 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1067 param
= param
->get_next();
1068 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1070 param
= param
->get_next();
1071 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1074 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1075 if (val
->type
->is_boolean())
1076 nir_val
= nir_b2i32(&b
, nir_val
);
1078 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1079 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1080 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1081 intrinsic_set_std430_align(instr
, val
->type
);
1082 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1083 instr
->num_components
= val
->type
->vector_elements
;
1085 nir_builder_instr_insert(&b
, &instr
->instr
);
1088 case nir_intrinsic_load_ssbo
: {
1089 exec_node
*param
= ir
->actual_parameters
.get_head();
1090 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1092 param
= param
->get_next();
1093 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1095 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1096 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1098 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1099 instr
->num_components
= type
->vector_elements
;
1100 intrinsic_set_std430_align(instr
, type
);
1102 /* Setup destination register */
1103 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1104 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1105 type
->vector_elements
, bit_size
, NULL
);
1107 /* Insert the created nir instruction now since in the case of boolean
1108 * result we will need to emit another instruction after it
1110 nir_builder_instr_insert(&b
, &instr
->instr
);
1113 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1114 * consider a true boolean to be ~0. Fix this up with a != 0
1117 if (type
->is_boolean())
1118 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1121 case nir_intrinsic_ssbo_atomic_add
:
1122 case nir_intrinsic_ssbo_atomic_imin
:
1123 case nir_intrinsic_ssbo_atomic_umin
:
1124 case nir_intrinsic_ssbo_atomic_imax
:
1125 case nir_intrinsic_ssbo_atomic_umax
:
1126 case nir_intrinsic_ssbo_atomic_and
:
1127 case nir_intrinsic_ssbo_atomic_or
:
1128 case nir_intrinsic_ssbo_atomic_xor
:
1129 case nir_intrinsic_ssbo_atomic_exchange
:
1130 case nir_intrinsic_ssbo_atomic_comp_swap
:
1131 case nir_intrinsic_ssbo_atomic_fadd
:
1132 case nir_intrinsic_ssbo_atomic_fmin
:
1133 case nir_intrinsic_ssbo_atomic_fmax
:
1134 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1135 int param_count
= ir
->actual_parameters
.length();
1136 assert(param_count
== 3 || param_count
== 4);
1139 exec_node
*param
= ir
->actual_parameters
.get_head();
1140 ir_instruction
*inst
= (ir_instruction
*) param
;
1141 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1144 param
= param
->get_next();
1145 inst
= (ir_instruction
*) param
;
1146 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1148 /* data1 parameter (this is always present) */
1149 param
= param
->get_next();
1150 inst
= (ir_instruction
*) param
;
1151 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1153 /* data2 parameter (only with atomic_comp_swap) */
1154 if (param_count
== 4) {
1155 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1156 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1157 param
= param
->get_next();
1158 inst
= (ir_instruction
*) param
;
1159 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1163 assert(ir
->return_deref
);
1164 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1165 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1166 nir_builder_instr_insert(&b
, &instr
->instr
);
1169 case nir_intrinsic_load_shared
: {
1170 exec_node
*param
= ir
->actual_parameters
.get_head();
1171 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1173 nir_intrinsic_set_base(instr
, 0);
1174 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1176 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1177 instr
->num_components
= type
->vector_elements
;
1178 intrinsic_set_std430_align(instr
, type
);
1180 /* Setup destination register */
1181 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1182 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1183 type
->vector_elements
, bit_size
, NULL
);
1185 nir_builder_instr_insert(&b
, &instr
->instr
);
1187 /* The value in shared memory is a 32-bit value */
1188 if (type
->is_boolean())
1189 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1192 case nir_intrinsic_store_shared
: {
1193 exec_node
*param
= ir
->actual_parameters
.get_head();
1194 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1196 param
= param
->get_next();
1197 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1199 param
= param
->get_next();
1200 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1203 nir_intrinsic_set_base(instr
, 0);
1204 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1206 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1208 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1209 /* The value in shared memory is a 32-bit value */
1210 if (val
->type
->is_boolean())
1211 nir_val
= nir_b2i32(&b
, nir_val
);
1213 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1214 instr
->num_components
= val
->type
->vector_elements
;
1215 intrinsic_set_std430_align(instr
, val
->type
);
1217 nir_builder_instr_insert(&b
, &instr
->instr
);
1220 case nir_intrinsic_shared_atomic_add
:
1221 case nir_intrinsic_shared_atomic_imin
:
1222 case nir_intrinsic_shared_atomic_umin
:
1223 case nir_intrinsic_shared_atomic_imax
:
1224 case nir_intrinsic_shared_atomic_umax
:
1225 case nir_intrinsic_shared_atomic_and
:
1226 case nir_intrinsic_shared_atomic_or
:
1227 case nir_intrinsic_shared_atomic_xor
:
1228 case nir_intrinsic_shared_atomic_exchange
:
1229 case nir_intrinsic_shared_atomic_comp_swap
:
1230 case nir_intrinsic_shared_atomic_fadd
:
1231 case nir_intrinsic_shared_atomic_fmin
:
1232 case nir_intrinsic_shared_atomic_fmax
:
1233 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1234 int param_count
= ir
->actual_parameters
.length();
1235 assert(param_count
== 2 || param_count
== 3);
1238 exec_node
*param
= ir
->actual_parameters
.get_head();
1239 ir_instruction
*inst
= (ir_instruction
*) param
;
1240 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1242 /* data1 parameter (this is always present) */
1243 param
= param
->get_next();
1244 inst
= (ir_instruction
*) param
;
1245 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1247 /* data2 parameter (only with atomic_comp_swap) */
1248 if (param_count
== 3) {
1249 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1250 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1251 param
= param
->get_next();
1252 inst
= (ir_instruction
*) param
;
1254 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1258 assert(ir
->return_deref
);
1259 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1260 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1261 ir
->return_deref
->type
->vector_elements
,
1263 nir_builder_instr_insert(&b
, &instr
->instr
);
1266 case nir_intrinsic_vote_any
:
1267 case nir_intrinsic_vote_all
:
1268 case nir_intrinsic_vote_ieq
: {
1269 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1270 instr
->num_components
= 1;
1272 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1273 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1275 nir_builder_instr_insert(&b
, &instr
->instr
);
1279 case nir_intrinsic_ballot
: {
1280 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1281 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1282 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1284 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1285 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1287 nir_builder_instr_insert(&b
, &instr
->instr
);
1290 case nir_intrinsic_read_invocation
: {
1291 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1292 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1293 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1295 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1296 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1298 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1299 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1301 nir_builder_instr_insert(&b
, &instr
->instr
);
1304 case nir_intrinsic_read_first_invocation
: {
1305 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1306 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1307 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1309 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1310 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1312 nir_builder_instr_insert(&b
, &instr
->instr
);
1316 unreachable("not reached");
1319 if (ir
->return_deref
)
1320 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1325 struct hash_entry
*entry
=
1326 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1328 nir_function
*callee
= (nir_function
*) entry
->data
;
1330 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1333 nir_deref_instr
*ret_deref
= NULL
;
1334 if (ir
->return_deref
) {
1335 nir_variable
*ret_tmp
=
1336 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1338 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1339 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1342 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1343 actual_node
, &ir
->actual_parameters
) {
1344 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1345 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1347 if (sig_param
->data
.mode
== ir_var_function_out
) {
1348 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1349 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1350 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1351 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1352 nir_src src
= nir_src_for_ssa(val
);
1354 nir_src_copy(&call
->params
[i
], &src
, call
);
1355 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1356 unreachable("unimplemented: inout parameters");
1362 nir_builder_instr_insert(&b
, &call
->instr
);
1364 if (ir
->return_deref
)
1365 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1369 nir_visitor::visit(ir_assignment
*ir
)
1371 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1373 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1374 ir
->lhs
->variable_referenced()->data
.precise
;
1376 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1377 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1378 if (ir
->condition
) {
1379 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1380 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1381 nir_pop_if(&b
, NULL
);
1383 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1388 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1390 ir
->lhs
->accept(this);
1391 nir_deref_instr
*lhs_deref
= this->deref
;
1392 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1394 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1395 /* GLSL IR will give us the input to the write-masked assignment in a
1396 * single packed vector. So, for example, if the writemask is xzw, then
1397 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1401 unsigned component
= 0;
1402 for (unsigned i
= 0; i
< 4; i
++) {
1403 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1405 src
= nir_swizzle(&b
, src
, swiz
, num_components
, false);
1408 if (ir
->condition
) {
1409 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1410 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1411 nir_pop_if(&b
, NULL
);
1413 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1418 * Given an instruction, returns a pointer to its destination or NULL if there
1419 * is no destination.
1421 * Note that this only handles instructions we generate at this level.
1424 get_instr_dest(nir_instr
*instr
)
1426 nir_alu_instr
*alu_instr
;
1427 nir_intrinsic_instr
*intrinsic_instr
;
1428 nir_tex_instr
*tex_instr
;
1430 switch (instr
->type
) {
1431 case nir_instr_type_alu
:
1432 alu_instr
= nir_instr_as_alu(instr
);
1433 return &alu_instr
->dest
.dest
;
1435 case nir_instr_type_intrinsic
:
1436 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1437 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1438 return &intrinsic_instr
->dest
;
1442 case nir_instr_type_tex
:
1443 tex_instr
= nir_instr_as_tex(instr
);
1444 return &tex_instr
->dest
;
1447 unreachable("not reached");
1454 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1457 nir_dest
*dest
= get_instr_dest(instr
);
1460 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1462 nir_builder_instr_insert(&b
, instr
);
1465 assert(dest
->is_ssa
);
1466 this->result
= &dest
->ssa
;
1471 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1474 if (ir
->as_dereference() || ir
->as_constant()) {
1476 * A dereference is being used on the right hand side, which means we
1477 * must emit a variable load.
1480 this->result
= nir_load_deref(&b
, this->deref
);
1483 return this->result
;
1487 type_is_float(glsl_base_type type
)
1489 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1490 type
== GLSL_TYPE_FLOAT16
;
1494 type_is_signed(glsl_base_type type
)
1496 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1497 type
== GLSL_TYPE_INT16
;
1501 type_is_int(glsl_base_type type
)
1503 return type
== GLSL_TYPE_UINT
|| type
== GLSL_TYPE_INT
||
1504 type
== GLSL_TYPE_UINT8
|| type
== GLSL_TYPE_INT8
||
1505 type
== GLSL_TYPE_UINT16
|| type
== GLSL_TYPE_INT16
||
1506 type
== GLSL_TYPE_UINT64
|| type
== GLSL_TYPE_INT64
;
1510 nir_visitor::visit(ir_expression
*ir
)
1512 /* Some special cases */
1513 switch (ir
->operation
) {
1514 case ir_binop_ubo_load
: {
1515 nir_intrinsic_instr
*load
=
1516 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1517 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1518 glsl_get_bit_size(ir
->type
);
1519 load
->num_components
= ir
->type
->vector_elements
;
1520 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1521 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1522 intrinsic_set_std430_align(load
, ir
->type
);
1523 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1526 * In UBO's, a true boolean value is any non-zero value, but we consider
1527 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1530 if (ir
->type
->is_boolean())
1531 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1536 case ir_unop_interpolate_at_centroid
:
1537 case ir_binop_interpolate_at_offset
:
1538 case ir_binop_interpolate_at_sample
: {
1539 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1540 ir_swizzle
*swizzle
= NULL
;
1542 /* the api does not allow a swizzle here, but the varying packing code
1543 * may have pushed one into here.
1545 swizzle
= ir
->operands
[0]->as_swizzle();
1547 deref
= swizzle
->val
->as_dereference();
1551 deref
->accept(this);
1553 nir_intrinsic_op op
;
1554 if (this->deref
->mode
== nir_var_shader_in
) {
1555 switch (ir
->operation
) {
1556 case ir_unop_interpolate_at_centroid
:
1557 op
= nir_intrinsic_interp_deref_at_centroid
;
1559 case ir_binop_interpolate_at_offset
:
1560 op
= nir_intrinsic_interp_deref_at_offset
;
1562 case ir_binop_interpolate_at_sample
:
1563 op
= nir_intrinsic_interp_deref_at_sample
;
1566 unreachable("Invalid interpolation intrinsic");
1569 /* This case can happen if the vertex shader does not write the
1570 * given varying. In this case, the linker will lower it to a
1571 * global variable. Since interpolating a variable makes no
1572 * sense, we'll just turn it into a load which will probably
1573 * eventually end up as an SSA definition.
1575 assert(this->deref
->mode
== nir_var_shader_temp
);
1576 op
= nir_intrinsic_load_deref
;
1579 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1580 intrin
->num_components
= deref
->type
->vector_elements
;
1581 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1583 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1584 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1585 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1587 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1588 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1591 unsigned swiz
[4] = {
1592 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1595 result
= nir_swizzle(&b
, result
, swiz
,
1596 swizzle
->type
->vector_elements
, false);
1606 nir_ssa_def
*srcs
[4];
1607 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1608 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1610 glsl_base_type types
[4];
1611 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1612 if (supports_ints
|| !type_is_int(ir
->operands
[i
]->type
->base_type
))
1613 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1615 types
[i
] = GLSL_TYPE_FLOAT
;
1617 glsl_base_type out_type
;
1618 if (supports_ints
|| !type_is_int(ir
->type
->base_type
))
1619 out_type
= ir
->type
->base_type
;
1621 out_type
= GLSL_TYPE_FLOAT
;
1623 switch (ir
->operation
) {
1624 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1625 case ir_unop_logic_not
:
1626 result
= nir_inot(&b
, srcs
[0]);
1629 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1630 : nir_ineg(&b
, srcs
[0]);
1633 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1634 : nir_iabs(&b
, srcs
[0]);
1636 case ir_unop_saturate
:
1637 assert(type_is_float(types
[0]));
1638 result
= nir_fsat(&b
, srcs
[0]);
1641 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1642 : nir_isign(&b
, srcs
[0]);
1644 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1645 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1646 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1647 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1648 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1649 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1650 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1652 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1655 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1658 result
= nir_b2f32(&b
, srcs
[0]);
1661 result
= supports_ints
? nir_f2i32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1664 result
= supports_ints
? nir_f2u32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1696 case ir_unop_i642u64
:
1697 case ir_unop_u642i64
: {
1698 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1699 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1700 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1701 nir_rounding_mode_undef
),
1702 srcs
[0], NULL
, NULL
, NULL
);
1703 /* b2i and b2f don't have fixed bit-size versions so the builder will
1704 * just assume 32 and we have to fix it up here.
1706 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1710 case ir_unop_bitcast_i2f
:
1711 case ir_unop_bitcast_f2i
:
1712 case ir_unop_bitcast_u2f
:
1713 case ir_unop_bitcast_f2u
:
1714 case ir_unop_bitcast_i642d
:
1715 case ir_unop_bitcast_d2i64
:
1716 case ir_unop_bitcast_u642d
:
1717 case ir_unop_bitcast_d2u64
:
1718 case ir_unop_subroutine_to_int
:
1720 result
= nir_imov(&b
, srcs
[0]);
1722 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1723 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1724 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1725 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1726 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1727 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1728 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1729 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1730 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1731 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1732 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1733 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1734 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1735 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1736 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1737 case ir_unop_pack_snorm_2x16
:
1738 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1740 case ir_unop_pack_snorm_4x8
:
1741 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1743 case ir_unop_pack_unorm_2x16
:
1744 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1746 case ir_unop_pack_unorm_4x8
:
1747 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1749 case ir_unop_pack_half_2x16
:
1750 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1752 case ir_unop_unpack_snorm_2x16
:
1753 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1755 case ir_unop_unpack_snorm_4x8
:
1756 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1758 case ir_unop_unpack_unorm_2x16
:
1759 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1761 case ir_unop_unpack_unorm_4x8
:
1762 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1764 case ir_unop_unpack_half_2x16
:
1765 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1767 case ir_unop_pack_sampler_2x32
:
1768 case ir_unop_pack_image_2x32
:
1769 case ir_unop_pack_double_2x32
:
1770 case ir_unop_pack_int_2x32
:
1771 case ir_unop_pack_uint_2x32
:
1772 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1774 case ir_unop_unpack_sampler_2x32
:
1775 case ir_unop_unpack_image_2x32
:
1776 case ir_unop_unpack_double_2x32
:
1777 case ir_unop_unpack_int_2x32
:
1778 case ir_unop_unpack_uint_2x32
:
1779 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1781 case ir_unop_bitfield_reverse
:
1782 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1784 case ir_unop_bit_count
:
1785 result
= nir_bit_count(&b
, srcs
[0]);
1787 case ir_unop_find_msb
:
1789 case GLSL_TYPE_UINT
:
1790 result
= nir_ufind_msb(&b
, srcs
[0]);
1793 result
= nir_ifind_msb(&b
, srcs
[0]);
1796 unreachable("Invalid type for findMSB()");
1799 case ir_unop_find_lsb
:
1800 result
= nir_find_lsb(&b
, srcs
[0]);
1804 switch (ir
->type
->vector_elements
) {
1806 switch (ir
->operands
[0]->type
->vector_elements
) {
1807 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1808 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1809 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1810 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1811 default: unreachable("not reached");
1815 switch (ir
->operands
[0]->type
->vector_elements
) {
1816 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1817 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1818 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1819 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1820 default: unreachable("not reached");
1824 switch (ir
->operands
[0]->type
->vector_elements
) {
1825 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1826 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1827 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1828 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1829 default: unreachable("not reached");
1833 switch (ir
->operands
[0]->type
->vector_elements
) {
1834 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1835 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1836 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1837 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1838 default: unreachable("not reached");
1842 unreachable("not reached");
1845 case ir_unop_get_buffer_size
: {
1846 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1848 nir_intrinsic_get_buffer_size
);
1849 load
->num_components
= ir
->type
->vector_elements
;
1850 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1851 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1852 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1857 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1858 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1861 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1862 : nir_isub(&b
, srcs
[0], srcs
[1]);
1865 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1866 : nir_imul(&b
, srcs
[0], srcs
[1]);
1869 if (type_is_float(out_type
))
1870 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1871 else if (type_is_signed(out_type
))
1872 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1874 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1877 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1878 : nir_umod(&b
, srcs
[0], srcs
[1]);
1881 if (type_is_float(out_type
))
1882 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1883 else if (type_is_signed(out_type
))
1884 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1886 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1889 if (type_is_float(out_type
))
1890 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1891 else if (type_is_signed(out_type
))
1892 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1894 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1896 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1897 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1898 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1899 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1900 case ir_binop_logic_and
:
1901 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
1903 case ir_binop_logic_or
:
1904 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
1906 case ir_binop_logic_xor
:
1907 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
1909 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1910 case ir_binop_rshift
:
1911 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1912 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1914 case ir_binop_imul_high
:
1915 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1916 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1918 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1919 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1921 if (type_is_float(types
[0]))
1922 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1923 else if (type_is_signed(types
[0]))
1924 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1926 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1928 case ir_binop_gequal
:
1929 if (type_is_float(types
[0]))
1930 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1931 else if (type_is_signed(types
[0]))
1932 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1934 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1936 case ir_binop_equal
:
1937 if (type_is_float(types
[0]))
1938 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1940 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1942 case ir_binop_nequal
:
1943 if (type_is_float(types
[0]))
1944 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1946 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1948 case ir_binop_all_equal
:
1949 if (type_is_float(types
[0])) {
1950 switch (ir
->operands
[0]->type
->vector_elements
) {
1951 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1952 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1953 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1954 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1956 unreachable("not reached");
1959 switch (ir
->operands
[0]->type
->vector_elements
) {
1960 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1961 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1962 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1963 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1965 unreachable("not reached");
1969 case ir_binop_any_nequal
:
1970 if (type_is_float(types
[0])) {
1971 switch (ir
->operands
[0]->type
->vector_elements
) {
1972 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1973 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1974 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1975 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1977 unreachable("not reached");
1980 switch (ir
->operands
[0]->type
->vector_elements
) {
1981 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1982 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1983 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1984 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1986 unreachable("not reached");
1991 switch (ir
->operands
[0]->type
->vector_elements
) {
1992 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
1993 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
1994 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
1996 unreachable("not reached");
1999 case ir_binop_vector_extract
: {
2000 result
= nir_channel(&b
, srcs
[0], 0);
2001 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2002 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2003 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2009 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2011 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2014 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2017 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2019 case ir_triop_bitfield_extract
:
2020 result
= (out_type
== GLSL_TYPE_INT
) ?
2021 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2022 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2024 case ir_quadop_bitfield_insert
:
2025 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2027 case ir_quadop_vector
:
2028 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2032 unreachable("not reached");
2037 nir_visitor::visit(ir_swizzle
*ir
)
2039 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2040 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2041 ir
->type
->vector_elements
, false);
2045 nir_visitor::visit(ir_texture
*ir
)
2052 num_srcs
= 1; /* coordinate */
2057 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2058 num_srcs
= 2; /* coordinate, bias/lod */
2062 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2068 if (ir
->lod_info
.lod
!= NULL
)
2069 num_srcs
= 2; /* coordinate, lod */
2071 num_srcs
= 1; /* coordinate */
2075 op
= nir_texop_txf_ms
;
2076 num_srcs
= 2; /* coordinate, sample_index */
2081 if (ir
->lod_info
.lod
!= NULL
)
2082 num_srcs
= 1; /* lod */
2089 num_srcs
= 1; /* coordinate */
2094 num_srcs
= 1; /* coordinate */
2097 case ir_query_levels
:
2098 op
= nir_texop_query_levels
;
2102 case ir_texture_samples
:
2103 op
= nir_texop_texture_samples
;
2107 case ir_samples_identical
:
2108 op
= nir_texop_samples_identical
;
2109 num_srcs
= 1; /* coordinate */
2113 unreachable("not reached");
2116 if (ir
->projector
!= NULL
)
2118 if (ir
->shadow_comparator
!= NULL
)
2120 if (ir
->offset
!= NULL
)
2123 /* Add one for the texture deref */
2126 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2129 instr
->sampler_dim
=
2130 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2131 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2132 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2133 if (instr
->is_shadow
)
2134 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2135 switch (ir
->type
->base_type
) {
2136 case GLSL_TYPE_FLOAT
:
2137 instr
->dest_type
= nir_type_float
;
2140 instr
->dest_type
= nir_type_int
;
2142 case GLSL_TYPE_BOOL
:
2143 case GLSL_TYPE_UINT
:
2144 instr
->dest_type
= nir_type_uint
;
2147 unreachable("not reached");
2150 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2151 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2152 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2153 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2154 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2156 unsigned src_number
= 2;
2158 if (ir
->coordinate
!= NULL
) {
2159 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2160 instr
->src
[src_number
].src
=
2161 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2162 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2166 if (ir
->projector
!= NULL
) {
2167 instr
->src
[src_number
].src
=
2168 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2169 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2173 if (ir
->shadow_comparator
!= NULL
) {
2174 instr
->src
[src_number
].src
=
2175 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2176 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2180 if (ir
->offset
!= NULL
) {
2181 /* we don't support multiple offsets yet */
2182 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2184 instr
->src
[src_number
].src
=
2185 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2186 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2192 instr
->src
[src_number
].src
=
2193 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2194 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2201 if (ir
->lod_info
.lod
!= NULL
) {
2202 instr
->src
[src_number
].src
=
2203 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2204 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2210 instr
->src
[src_number
].src
=
2211 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2212 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2214 instr
->src
[src_number
].src
=
2215 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2216 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2221 instr
->src
[src_number
].src
=
2222 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2223 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2228 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2235 assert(src_number
== num_srcs
);
2237 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2238 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2242 nir_visitor::visit(ir_constant
*ir
)
2245 * We don't know if this variable is an array or struct that gets
2246 * dereferenced, so do the safe thing an make it a variable with a
2247 * constant initializer and return a dereference.
2251 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2252 var
->data
.read_only
= true;
2253 var
->constant_initializer
= constant_copy(ir
, var
);
2255 this->deref
= nir_build_deref_var(&b
, var
);
2259 nir_visitor::visit(ir_dereference_variable
*ir
)
2261 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2262 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2264 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2265 if (param
== ir
->variable_referenced()) {
2271 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2272 nir_var_function_temp
, ir
->type
, 0);
2276 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2278 struct hash_entry
*entry
=
2279 _mesa_hash_table_search(this->var_table
, ir
->var
);
2281 nir_variable
*var
= (nir_variable
*) entry
->data
;
2283 this->deref
= nir_build_deref_var(&b
, var
);
2287 nir_visitor::visit(ir_dereference_record
*ir
)
2289 ir
->record
->accept(this);
2291 int field_index
= ir
->field_idx
;
2292 assert(field_index
>= 0);
2294 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2298 nir_visitor::visit(ir_dereference_array
*ir
)
2300 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2302 ir
->array
->accept(this);
2304 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2308 nir_visitor::visit(ir_barrier
*)
2310 nir_intrinsic_instr
*instr
=
2311 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2312 nir_builder_instr_insert(&b
, &instr
->instr
);