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_hash_table_create(NULL
, _mesa_hash_pointer
,
180 _mesa_key_pointer_equal
);
181 this->overload_table
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
182 _mesa_key_pointer_equal
);
185 memset(&this->b
, 0, sizeof(this->b
));
188 nir_visitor::~nir_visitor()
190 _mesa_hash_table_destroy(this->var_table
, NULL
);
191 _mesa_hash_table_destroy(this->overload_table
, NULL
);
195 nir_visitor::evaluate_deref(ir_instruction
*ir
)
202 nir_visitor::constant_copy(ir_constant
*ir
, void *mem_ctx
)
207 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
209 const unsigned rows
= ir
->type
->vector_elements
;
210 const unsigned cols
= ir
->type
->matrix_columns
;
213 ret
->num_elements
= 0;
214 switch (ir
->type
->base_type
) {
216 /* Only float base types can be matrices. */
219 for (unsigned r
= 0; r
< rows
; r
++)
221 ret
->values
[0].u32
[r
] = ir
->value
.u
[r
];
223 ret
->values
[0].f32
[r
] = ir
->value
.u
[r
];
228 /* Only float base types can be matrices. */
231 for (unsigned r
= 0; r
< rows
; r
++)
233 ret
->values
[0].i32
[r
] = ir
->value
.i
[r
];
235 ret
->values
[0].f32
[r
] = ir
->value
.i
[r
];
239 case GLSL_TYPE_FLOAT
:
240 for (unsigned c
= 0; c
< cols
; c
++) {
241 for (unsigned r
= 0; r
< rows
; r
++)
242 ret
->values
[c
].f32
[r
] = ir
->value
.f
[c
* rows
+ r
];
246 case GLSL_TYPE_DOUBLE
:
247 for (unsigned c
= 0; c
< cols
; c
++) {
248 for (unsigned r
= 0; r
< rows
; r
++)
249 ret
->values
[c
].f64
[r
] = ir
->value
.d
[c
* rows
+ r
];
253 case GLSL_TYPE_UINT64
:
254 /* Only float base types can be matrices. */
257 for (unsigned r
= 0; r
< rows
; r
++)
258 ret
->values
[0].u64
[r
] = ir
->value
.u64
[r
];
261 case GLSL_TYPE_INT64
:
262 /* Only float base types can be matrices. */
265 for (unsigned r
= 0; r
< rows
; r
++)
266 ret
->values
[0].i64
[r
] = ir
->value
.i64
[r
];
270 /* Only float base types can be matrices. */
273 for (unsigned r
= 0; r
< rows
; r
++)
274 ret
->values
[0].b
[r
] = ir
->value
.b
[r
];
278 case GLSL_TYPE_STRUCT
:
279 case GLSL_TYPE_ARRAY
:
280 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
282 ret
->num_elements
= ir
->type
->length
;
284 for (i
= 0; i
< ir
->type
->length
; i
++)
285 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
289 unreachable("not reached");
296 nir_visitor::visit(ir_variable
*ir
)
298 /* TODO: In future we should switch to using the NIR lowering pass but for
299 * now just ignore these variables as GLSL IR should have lowered them.
300 * Anything remaining are just dead vars that weren't cleaned up.
302 if (ir
->data
.mode
== ir_var_shader_shared
)
305 /* FINISHME: inout parameters */
306 assert(ir
->data
.mode
!= ir_var_function_inout
);
308 if (ir
->data
.mode
== ir_var_function_out
)
311 nir_variable
*var
= rzalloc(shader
, nir_variable
);
312 var
->type
= ir
->type
;
313 var
->name
= ralloc_strdup(var
, ir
->name
);
315 var
->data
.always_active_io
= ir
->data
.always_active_io
;
316 var
->data
.read_only
= ir
->data
.read_only
;
317 var
->data
.centroid
= ir
->data
.centroid
;
318 var
->data
.sample
= ir
->data
.sample
;
319 var
->data
.patch
= ir
->data
.patch
;
320 var
->data
.invariant
= ir
->data
.invariant
;
321 var
->data
.location
= ir
->data
.location
;
322 var
->data
.stream
= ir
->data
.stream
;
323 var
->data
.compact
= false;
325 switch(ir
->data
.mode
) {
327 case ir_var_temporary
:
329 var
->data
.mode
= nir_var_private
;
331 var
->data
.mode
= nir_var_function
;
334 case ir_var_function_in
:
335 case ir_var_const_in
:
336 var
->data
.mode
= nir_var_function
;
339 case ir_var_shader_in
:
340 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
&&
341 ir
->data
.location
== VARYING_SLOT_FACE
) {
342 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
343 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
344 var
->data
.mode
= nir_var_system_value
;
345 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
346 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
347 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
348 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
349 var
->data
.mode
= nir_var_system_value
;
351 var
->data
.mode
= nir_var_shader_in
;
353 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
354 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
355 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
356 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
361 case ir_var_shader_out
:
362 var
->data
.mode
= nir_var_shader_out
;
363 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
364 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
365 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
366 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
371 if (ir
->get_interface_type())
372 var
->data
.mode
= nir_var_ubo
;
374 var
->data
.mode
= nir_var_uniform
;
377 case ir_var_shader_storage
:
378 var
->data
.mode
= nir_var_ssbo
;
381 case ir_var_system_value
:
382 var
->data
.mode
= nir_var_system_value
;
386 unreachable("not reached");
389 var
->data
.interpolation
= ir
->data
.interpolation
;
390 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
391 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
392 var
->data
.location_frac
= ir
->data
.location_frac
;
394 if (var
->data
.pixel_center_integer
) {
395 assert(shader
->info
.stage
== MESA_SHADER_FRAGMENT
);
396 shader
->info
.fs
.pixel_center_integer
= true;
399 switch (ir
->data
.depth_layout
) {
400 case ir_depth_layout_none
:
401 var
->data
.depth_layout
= nir_depth_layout_none
;
403 case ir_depth_layout_any
:
404 var
->data
.depth_layout
= nir_depth_layout_any
;
406 case ir_depth_layout_greater
:
407 var
->data
.depth_layout
= nir_depth_layout_greater
;
409 case ir_depth_layout_less
:
410 var
->data
.depth_layout
= nir_depth_layout_less
;
412 case ir_depth_layout_unchanged
:
413 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
416 unreachable("not reached");
419 var
->data
.index
= ir
->data
.index
;
420 var
->data
.descriptor_set
= 0;
421 var
->data
.binding
= ir
->data
.binding
;
422 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
423 var
->data
.bindless
= ir
->data
.bindless
;
424 var
->data
.offset
= ir
->data
.offset
;
426 unsigned image_access
= 0;
427 if (ir
->data
.memory_read_only
)
428 image_access
|= ACCESS_NON_WRITEABLE
;
429 if (ir
->data
.memory_write_only
)
430 image_access
|= ACCESS_NON_READABLE
;
431 if (ir
->data
.memory_coherent
)
432 image_access
|= ACCESS_COHERENT
;
433 if (ir
->data
.memory_volatile
)
434 image_access
|= ACCESS_VOLATILE
;
435 if (ir
->data
.memory_restrict
)
436 image_access
|= ACCESS_RESTRICT
;
437 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
438 var
->data
.image
.format
= ir
->data
.image_format
;
440 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
441 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
442 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
443 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
444 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
446 var
->num_state_slots
= ir
->get_num_state_slots();
447 if (var
->num_state_slots
> 0) {
448 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
449 var
->num_state_slots
);
451 ir_state_slot
*state_slots
= ir
->get_state_slots();
452 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
453 for (unsigned j
= 0; j
< 5; j
++)
454 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
455 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
458 var
->state_slots
= NULL
;
461 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
463 var
->interface_type
= ir
->get_interface_type();
465 if (var
->data
.mode
== nir_var_function
)
466 nir_function_impl_add_variable(impl
, var
);
468 nir_shader_add_variable(shader
, var
);
470 _mesa_hash_table_insert(var_table
, ir
, var
);
474 nir_function_visitor::visit_enter(ir_function
*ir
)
476 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
477 visitor
->create_function(sig
);
479 return visit_continue_with_parent
;
483 nir_visitor::create_function(ir_function_signature
*ir
)
485 if (ir
->is_intrinsic())
488 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
489 if (strcmp(ir
->function_name(), "main") == 0)
490 func
->is_entrypoint
= true;
492 func
->num_params
= ir
->parameters
.length() +
493 (ir
->return_type
!= glsl_type::void_type
);
494 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
498 if (ir
->return_type
!= glsl_type::void_type
) {
499 /* The return value is a variable deref (basically an out parameter) */
500 func
->params
[np
].num_components
= 1;
501 func
->params
[np
].bit_size
= 32;
505 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
506 /* FINISHME: pass arrays, structs, etc by reference? */
507 assert(param
->type
->is_vector() || param
->type
->is_scalar());
509 if (param
->data
.mode
== ir_var_function_in
) {
510 func
->params
[np
].num_components
= param
->type
->vector_elements
;
511 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
513 func
->params
[np
].num_components
= 1;
514 func
->params
[np
].bit_size
= 32;
518 assert(np
== func
->num_params
);
520 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
524 nir_visitor::visit(ir_function
*ir
)
526 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
531 nir_visitor::visit(ir_function_signature
*ir
)
533 if (ir
->is_intrinsic())
538 struct hash_entry
*entry
=
539 _mesa_hash_table_search(this->overload_table
, ir
);
542 nir_function
*func
= (nir_function
*) entry
->data
;
544 if (ir
->is_defined
) {
545 nir_function_impl
*impl
= nir_function_impl_create(func
);
548 this->is_global
= false;
550 nir_builder_init(&b
, impl
);
551 b
.cursor
= nir_after_cf_list(&impl
->body
);
553 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
555 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
557 nir_local_variable_create(impl
, param
->type
, param
->name
);
559 if (param
->data
.mode
== ir_var_function_in
) {
560 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
563 _mesa_hash_table_insert(var_table
, param
, var
);
567 visit_exec_list(&ir
->body
, this);
569 this->is_global
= true;
576 nir_visitor::visit(ir_loop
*ir
)
579 visit_exec_list(&ir
->body_instructions
, this);
580 nir_pop_loop(&b
, NULL
);
584 nir_visitor::visit(ir_if
*ir
)
586 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
587 visit_exec_list(&ir
->then_instructions
, this);
588 nir_push_else(&b
, NULL
);
589 visit_exec_list(&ir
->else_instructions
, this);
590 nir_pop_if(&b
, NULL
);
594 nir_visitor::visit(ir_discard
*ir
)
597 * discards aren't treated as control flow, because before we lower them
598 * they can appear anywhere in the shader and the stuff after them may still
599 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
600 * discards will be immediately followed by a return.
603 nir_intrinsic_instr
*discard
;
605 discard
= nir_intrinsic_instr_create(this->shader
,
606 nir_intrinsic_discard_if
);
608 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
610 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
613 nir_builder_instr_insert(&b
, &discard
->instr
);
617 nir_visitor::visit(ir_emit_vertex
*ir
)
619 nir_intrinsic_instr
*instr
=
620 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
621 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
622 nir_builder_instr_insert(&b
, &instr
->instr
);
626 nir_visitor::visit(ir_end_primitive
*ir
)
628 nir_intrinsic_instr
*instr
=
629 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
630 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
631 nir_builder_instr_insert(&b
, &instr
->instr
);
635 nir_visitor::visit(ir_loop_jump
*ir
)
639 case ir_loop_jump::jump_break
:
640 type
= nir_jump_break
;
642 case ir_loop_jump::jump_continue
:
643 type
= nir_jump_continue
;
646 unreachable("not reached");
649 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
650 nir_builder_instr_insert(&b
, &instr
->instr
);
654 nir_visitor::visit(ir_return
*ir
)
656 if (ir
->value
!= NULL
) {
657 nir_deref_instr
*ret_deref
=
658 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
659 nir_var_function
, ir
->value
->type
, 0);
661 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
662 nir_store_deref(&b
, ret_deref
, val
, ~0);
665 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
666 nir_builder_instr_insert(&b
, &instr
->instr
);
670 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
672 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
673 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
674 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
678 nir_visitor::visit(ir_call
*ir
)
680 if (ir
->callee
->is_intrinsic()) {
683 switch (ir
->callee
->intrinsic_id
) {
684 case ir_intrinsic_atomic_counter_read
:
685 op
= nir_intrinsic_atomic_counter_read_deref
;
687 case ir_intrinsic_atomic_counter_increment
:
688 op
= nir_intrinsic_atomic_counter_inc_deref
;
690 case ir_intrinsic_atomic_counter_predecrement
:
691 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
693 case ir_intrinsic_atomic_counter_add
:
694 op
= nir_intrinsic_atomic_counter_add_deref
;
696 case ir_intrinsic_atomic_counter_and
:
697 op
= nir_intrinsic_atomic_counter_and_deref
;
699 case ir_intrinsic_atomic_counter_or
:
700 op
= nir_intrinsic_atomic_counter_or_deref
;
702 case ir_intrinsic_atomic_counter_xor
:
703 op
= nir_intrinsic_atomic_counter_xor_deref
;
705 case ir_intrinsic_atomic_counter_min
:
706 op
= nir_intrinsic_atomic_counter_min_deref
;
708 case ir_intrinsic_atomic_counter_max
:
709 op
= nir_intrinsic_atomic_counter_max_deref
;
711 case ir_intrinsic_atomic_counter_exchange
:
712 op
= nir_intrinsic_atomic_counter_exchange_deref
;
714 case ir_intrinsic_atomic_counter_comp_swap
:
715 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
717 case ir_intrinsic_image_load
:
718 op
= nir_intrinsic_image_deref_load
;
720 case ir_intrinsic_image_store
:
721 op
= nir_intrinsic_image_deref_store
;
723 case ir_intrinsic_image_atomic_add
:
724 op
= ir
->return_deref
->type
->is_integer_32_64()
725 ? nir_intrinsic_image_deref_atomic_add
726 : nir_intrinsic_image_deref_atomic_fadd
;
728 case ir_intrinsic_image_atomic_min
:
729 op
= nir_intrinsic_image_deref_atomic_min
;
731 case ir_intrinsic_image_atomic_max
:
732 op
= nir_intrinsic_image_deref_atomic_max
;
734 case ir_intrinsic_image_atomic_and
:
735 op
= nir_intrinsic_image_deref_atomic_and
;
737 case ir_intrinsic_image_atomic_or
:
738 op
= nir_intrinsic_image_deref_atomic_or
;
740 case ir_intrinsic_image_atomic_xor
:
741 op
= nir_intrinsic_image_deref_atomic_xor
;
743 case ir_intrinsic_image_atomic_exchange
:
744 op
= nir_intrinsic_image_deref_atomic_exchange
;
746 case ir_intrinsic_image_atomic_comp_swap
:
747 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
749 case ir_intrinsic_memory_barrier
:
750 op
= nir_intrinsic_memory_barrier
;
752 case ir_intrinsic_image_size
:
753 op
= nir_intrinsic_image_deref_size
;
755 case ir_intrinsic_image_samples
:
756 op
= nir_intrinsic_image_deref_samples
;
758 case ir_intrinsic_ssbo_store
:
759 op
= nir_intrinsic_store_ssbo
;
761 case ir_intrinsic_ssbo_load
:
762 op
= nir_intrinsic_load_ssbo
;
764 case ir_intrinsic_ssbo_atomic_add
:
765 op
= ir
->return_deref
->type
->is_integer_32_64()
766 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
768 case ir_intrinsic_ssbo_atomic_and
:
769 op
= nir_intrinsic_ssbo_atomic_and
;
771 case ir_intrinsic_ssbo_atomic_or
:
772 op
= nir_intrinsic_ssbo_atomic_or
;
774 case ir_intrinsic_ssbo_atomic_xor
:
775 op
= nir_intrinsic_ssbo_atomic_xor
;
777 case ir_intrinsic_ssbo_atomic_min
:
778 assert(ir
->return_deref
);
779 if (ir
->return_deref
->type
== glsl_type::int_type
)
780 op
= nir_intrinsic_ssbo_atomic_imin
;
781 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
782 op
= nir_intrinsic_ssbo_atomic_umin
;
783 else if (ir
->return_deref
->type
== glsl_type::float_type
)
784 op
= nir_intrinsic_ssbo_atomic_fmin
;
786 unreachable("Invalid type");
788 case ir_intrinsic_ssbo_atomic_max
:
789 assert(ir
->return_deref
);
790 if (ir
->return_deref
->type
== glsl_type::int_type
)
791 op
= nir_intrinsic_ssbo_atomic_imax
;
792 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
793 op
= nir_intrinsic_ssbo_atomic_umax
;
794 else if (ir
->return_deref
->type
== glsl_type::float_type
)
795 op
= nir_intrinsic_ssbo_atomic_fmax
;
797 unreachable("Invalid type");
799 case ir_intrinsic_ssbo_atomic_exchange
:
800 op
= nir_intrinsic_ssbo_atomic_exchange
;
802 case ir_intrinsic_ssbo_atomic_comp_swap
:
803 op
= ir
->return_deref
->type
->is_integer_32_64()
804 ? nir_intrinsic_ssbo_atomic_comp_swap
805 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
807 case ir_intrinsic_shader_clock
:
808 op
= nir_intrinsic_shader_clock
;
810 case ir_intrinsic_begin_invocation_interlock
:
811 op
= nir_intrinsic_begin_invocation_interlock
;
813 case ir_intrinsic_end_invocation_interlock
:
814 op
= nir_intrinsic_end_invocation_interlock
;
816 case ir_intrinsic_group_memory_barrier
:
817 op
= nir_intrinsic_group_memory_barrier
;
819 case ir_intrinsic_memory_barrier_atomic_counter
:
820 op
= nir_intrinsic_memory_barrier_atomic_counter
;
822 case ir_intrinsic_memory_barrier_buffer
:
823 op
= nir_intrinsic_memory_barrier_buffer
;
825 case ir_intrinsic_memory_barrier_image
:
826 op
= nir_intrinsic_memory_barrier_image
;
828 case ir_intrinsic_memory_barrier_shared
:
829 op
= nir_intrinsic_memory_barrier_shared
;
831 case ir_intrinsic_shared_load
:
832 op
= nir_intrinsic_load_shared
;
834 case ir_intrinsic_shared_store
:
835 op
= nir_intrinsic_store_shared
;
837 case ir_intrinsic_shared_atomic_add
:
838 op
= ir
->return_deref
->type
->is_integer_32_64()
839 ? nir_intrinsic_shared_atomic_add
840 : nir_intrinsic_shared_atomic_fadd
;
842 case ir_intrinsic_shared_atomic_and
:
843 op
= nir_intrinsic_shared_atomic_and
;
845 case ir_intrinsic_shared_atomic_or
:
846 op
= nir_intrinsic_shared_atomic_or
;
848 case ir_intrinsic_shared_atomic_xor
:
849 op
= nir_intrinsic_shared_atomic_xor
;
851 case ir_intrinsic_shared_atomic_min
:
852 assert(ir
->return_deref
);
853 if (ir
->return_deref
->type
== glsl_type::int_type
)
854 op
= nir_intrinsic_shared_atomic_imin
;
855 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
856 op
= nir_intrinsic_shared_atomic_umin
;
857 else if (ir
->return_deref
->type
== glsl_type::float_type
)
858 op
= nir_intrinsic_shared_atomic_fmin
;
860 unreachable("Invalid type");
862 case ir_intrinsic_shared_atomic_max
:
863 assert(ir
->return_deref
);
864 if (ir
->return_deref
->type
== glsl_type::int_type
)
865 op
= nir_intrinsic_shared_atomic_imax
;
866 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
867 op
= nir_intrinsic_shared_atomic_umax
;
868 else if (ir
->return_deref
->type
== glsl_type::float_type
)
869 op
= nir_intrinsic_shared_atomic_fmax
;
871 unreachable("Invalid type");
873 case ir_intrinsic_shared_atomic_exchange
:
874 op
= nir_intrinsic_shared_atomic_exchange
;
876 case ir_intrinsic_shared_atomic_comp_swap
:
877 op
= ir
->return_deref
->type
->is_integer_32_64()
878 ? nir_intrinsic_shared_atomic_comp_swap
879 : nir_intrinsic_shared_atomic_fcomp_swap
;
881 case ir_intrinsic_vote_any
:
882 op
= nir_intrinsic_vote_any
;
884 case ir_intrinsic_vote_all
:
885 op
= nir_intrinsic_vote_all
;
887 case ir_intrinsic_vote_eq
:
888 op
= nir_intrinsic_vote_ieq
;
890 case ir_intrinsic_ballot
:
891 op
= nir_intrinsic_ballot
;
893 case ir_intrinsic_read_invocation
:
894 op
= nir_intrinsic_read_invocation
;
896 case ir_intrinsic_read_first_invocation
:
897 op
= nir_intrinsic_read_first_invocation
;
900 unreachable("not reached");
903 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
904 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
907 case nir_intrinsic_atomic_counter_read_deref
:
908 case nir_intrinsic_atomic_counter_inc_deref
:
909 case nir_intrinsic_atomic_counter_pre_dec_deref
:
910 case nir_intrinsic_atomic_counter_add_deref
:
911 case nir_intrinsic_atomic_counter_min_deref
:
912 case nir_intrinsic_atomic_counter_max_deref
:
913 case nir_intrinsic_atomic_counter_and_deref
:
914 case nir_intrinsic_atomic_counter_or_deref
:
915 case nir_intrinsic_atomic_counter_xor_deref
:
916 case nir_intrinsic_atomic_counter_exchange_deref
:
917 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
918 /* Set the counter variable dereference. */
919 exec_node
*param
= ir
->actual_parameters
.get_head();
920 ir_dereference
*counter
= (ir_dereference
*)param
;
922 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
923 param
= param
->get_next();
925 /* Set the intrinsic destination. */
926 if (ir
->return_deref
) {
927 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
930 /* Set the intrinsic parameters. */
931 if (!param
->is_tail_sentinel()) {
933 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
934 param
= param
->get_next();
937 if (!param
->is_tail_sentinel()) {
939 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
940 param
= param
->get_next();
943 nir_builder_instr_insert(&b
, &instr
->instr
);
946 case nir_intrinsic_image_deref_load
:
947 case nir_intrinsic_image_deref_store
:
948 case nir_intrinsic_image_deref_atomic_add
:
949 case nir_intrinsic_image_deref_atomic_min
:
950 case nir_intrinsic_image_deref_atomic_max
:
951 case nir_intrinsic_image_deref_atomic_and
:
952 case nir_intrinsic_image_deref_atomic_or
:
953 case nir_intrinsic_image_deref_atomic_xor
:
954 case nir_intrinsic_image_deref_atomic_exchange
:
955 case nir_intrinsic_image_deref_atomic_comp_swap
:
956 case nir_intrinsic_image_deref_atomic_fadd
:
957 case nir_intrinsic_image_deref_samples
:
958 case nir_intrinsic_image_deref_size
: {
959 nir_ssa_undef_instr
*instr_undef
=
960 nir_ssa_undef_instr_create(shader
, 1, 32);
961 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
963 /* Set the image variable dereference. */
964 exec_node
*param
= ir
->actual_parameters
.get_head();
965 ir_dereference
*image
= (ir_dereference
*)param
;
966 const glsl_type
*type
=
967 image
->variable_referenced()->type
->without_array();
969 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
970 param
= param
->get_next();
972 /* Set the intrinsic destination. */
973 if (ir
->return_deref
) {
974 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
975 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
976 num_components
, 32, NULL
);
979 if (op
== nir_intrinsic_image_deref_size
) {
980 instr
->num_components
= instr
->dest
.ssa
.num_components
;
981 } else if (op
== nir_intrinsic_image_deref_load
||
982 op
== nir_intrinsic_image_deref_store
) {
983 instr
->num_components
= 4;
986 if (op
== nir_intrinsic_image_deref_size
||
987 op
== nir_intrinsic_image_deref_samples
) {
988 nir_builder_instr_insert(&b
, &instr
->instr
);
992 /* Set the address argument, extending the coordinate vector to four
995 nir_ssa_def
*src_addr
=
996 evaluate_rvalue((ir_dereference
*)param
);
997 nir_ssa_def
*srcs
[4];
999 for (int i
= 0; i
< 4; i
++) {
1000 if (i
< type
->coordinate_components())
1001 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1003 srcs
[i
] = &instr_undef
->def
;
1006 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1007 param
= param
->get_next();
1009 /* Set the sample argument, which is undefined for single-sample
1012 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1014 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1015 param
= param
->get_next();
1017 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1020 /* Set the intrinsic parameters. */
1021 if (!param
->is_tail_sentinel()) {
1023 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1024 param
= param
->get_next();
1027 if (!param
->is_tail_sentinel()) {
1029 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1030 param
= param
->get_next();
1032 nir_builder_instr_insert(&b
, &instr
->instr
);
1035 case nir_intrinsic_memory_barrier
:
1036 case nir_intrinsic_group_memory_barrier
:
1037 case nir_intrinsic_memory_barrier_atomic_counter
:
1038 case nir_intrinsic_memory_barrier_buffer
:
1039 case nir_intrinsic_memory_barrier_image
:
1040 case nir_intrinsic_memory_barrier_shared
:
1041 nir_builder_instr_insert(&b
, &instr
->instr
);
1043 case nir_intrinsic_shader_clock
:
1044 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1045 instr
->num_components
= 2;
1046 nir_builder_instr_insert(&b
, &instr
->instr
);
1048 case nir_intrinsic_begin_invocation_interlock
:
1049 nir_builder_instr_insert(&b
, &instr
->instr
);
1051 case nir_intrinsic_end_invocation_interlock
:
1052 nir_builder_instr_insert(&b
, &instr
->instr
);
1054 case nir_intrinsic_store_ssbo
: {
1055 exec_node
*param
= ir
->actual_parameters
.get_head();
1056 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1058 param
= param
->get_next();
1059 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1061 param
= param
->get_next();
1062 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1064 param
= param
->get_next();
1065 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1068 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1069 if (val
->type
->is_boolean())
1070 nir_val
= nir_b2i32(&b
, nir_val
);
1072 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1073 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1074 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1075 intrinsic_set_std430_align(instr
, val
->type
);
1076 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1077 instr
->num_components
= val
->type
->vector_elements
;
1079 nir_builder_instr_insert(&b
, &instr
->instr
);
1082 case nir_intrinsic_load_ssbo
: {
1083 exec_node
*param
= ir
->actual_parameters
.get_head();
1084 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1086 param
= param
->get_next();
1087 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1089 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1090 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1092 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1093 instr
->num_components
= type
->vector_elements
;
1094 intrinsic_set_std430_align(instr
, type
);
1096 /* Setup destination register */
1097 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1098 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1099 type
->vector_elements
, bit_size
, NULL
);
1101 /* Insert the created nir instruction now since in the case of boolean
1102 * result we will need to emit another instruction after it
1104 nir_builder_instr_insert(&b
, &instr
->instr
);
1107 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1108 * consider a true boolean to be ~0. Fix this up with a != 0
1111 if (type
->is_boolean())
1112 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1115 case nir_intrinsic_ssbo_atomic_add
:
1116 case nir_intrinsic_ssbo_atomic_imin
:
1117 case nir_intrinsic_ssbo_atomic_umin
:
1118 case nir_intrinsic_ssbo_atomic_imax
:
1119 case nir_intrinsic_ssbo_atomic_umax
:
1120 case nir_intrinsic_ssbo_atomic_and
:
1121 case nir_intrinsic_ssbo_atomic_or
:
1122 case nir_intrinsic_ssbo_atomic_xor
:
1123 case nir_intrinsic_ssbo_atomic_exchange
:
1124 case nir_intrinsic_ssbo_atomic_comp_swap
:
1125 case nir_intrinsic_ssbo_atomic_fadd
:
1126 case nir_intrinsic_ssbo_atomic_fmin
:
1127 case nir_intrinsic_ssbo_atomic_fmax
:
1128 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1129 int param_count
= ir
->actual_parameters
.length();
1130 assert(param_count
== 3 || param_count
== 4);
1133 exec_node
*param
= ir
->actual_parameters
.get_head();
1134 ir_instruction
*inst
= (ir_instruction
*) param
;
1135 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1138 param
= param
->get_next();
1139 inst
= (ir_instruction
*) param
;
1140 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1142 /* data1 parameter (this is always present) */
1143 param
= param
->get_next();
1144 inst
= (ir_instruction
*) param
;
1145 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1147 /* data2 parameter (only with atomic_comp_swap) */
1148 if (param_count
== 4) {
1149 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1150 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1151 param
= param
->get_next();
1152 inst
= (ir_instruction
*) param
;
1153 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1157 assert(ir
->return_deref
);
1158 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1159 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1160 nir_builder_instr_insert(&b
, &instr
->instr
);
1163 case nir_intrinsic_load_shared
: {
1164 exec_node
*param
= ir
->actual_parameters
.get_head();
1165 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1167 nir_intrinsic_set_base(instr
, 0);
1168 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1170 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1171 instr
->num_components
= type
->vector_elements
;
1172 intrinsic_set_std430_align(instr
, type
);
1174 /* Setup destination register */
1175 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1176 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1177 type
->vector_elements
, bit_size
, NULL
);
1179 nir_builder_instr_insert(&b
, &instr
->instr
);
1181 /* The value in shared memory is a 32-bit value */
1182 if (type
->is_boolean())
1183 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1186 case nir_intrinsic_store_shared
: {
1187 exec_node
*param
= ir
->actual_parameters
.get_head();
1188 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1190 param
= param
->get_next();
1191 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1193 param
= param
->get_next();
1194 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1197 nir_intrinsic_set_base(instr
, 0);
1198 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1200 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1202 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1203 /* The value in shared memory is a 32-bit value */
1204 if (val
->type
->is_boolean())
1205 nir_val
= nir_b2i32(&b
, nir_val
);
1207 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1208 instr
->num_components
= val
->type
->vector_elements
;
1209 intrinsic_set_std430_align(instr
, val
->type
);
1211 nir_builder_instr_insert(&b
, &instr
->instr
);
1214 case nir_intrinsic_shared_atomic_add
:
1215 case nir_intrinsic_shared_atomic_imin
:
1216 case nir_intrinsic_shared_atomic_umin
:
1217 case nir_intrinsic_shared_atomic_imax
:
1218 case nir_intrinsic_shared_atomic_umax
:
1219 case nir_intrinsic_shared_atomic_and
:
1220 case nir_intrinsic_shared_atomic_or
:
1221 case nir_intrinsic_shared_atomic_xor
:
1222 case nir_intrinsic_shared_atomic_exchange
:
1223 case nir_intrinsic_shared_atomic_comp_swap
:
1224 case nir_intrinsic_shared_atomic_fadd
:
1225 case nir_intrinsic_shared_atomic_fmin
:
1226 case nir_intrinsic_shared_atomic_fmax
:
1227 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1228 int param_count
= ir
->actual_parameters
.length();
1229 assert(param_count
== 2 || param_count
== 3);
1232 exec_node
*param
= ir
->actual_parameters
.get_head();
1233 ir_instruction
*inst
= (ir_instruction
*) param
;
1234 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1236 /* data1 parameter (this is always present) */
1237 param
= param
->get_next();
1238 inst
= (ir_instruction
*) param
;
1239 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1241 /* data2 parameter (only with atomic_comp_swap) */
1242 if (param_count
== 3) {
1243 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1244 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1245 param
= param
->get_next();
1246 inst
= (ir_instruction
*) param
;
1248 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1252 assert(ir
->return_deref
);
1253 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1254 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1255 ir
->return_deref
->type
->vector_elements
,
1257 nir_builder_instr_insert(&b
, &instr
->instr
);
1260 case nir_intrinsic_vote_any
:
1261 case nir_intrinsic_vote_all
:
1262 case nir_intrinsic_vote_ieq
: {
1263 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1264 instr
->num_components
= 1;
1266 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1267 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1269 nir_builder_instr_insert(&b
, &instr
->instr
);
1273 case nir_intrinsic_ballot
: {
1274 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1275 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1276 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1278 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1279 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1281 nir_builder_instr_insert(&b
, &instr
->instr
);
1284 case nir_intrinsic_read_invocation
: {
1285 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1286 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1287 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1289 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1290 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1292 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1293 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1295 nir_builder_instr_insert(&b
, &instr
->instr
);
1298 case nir_intrinsic_read_first_invocation
: {
1299 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1300 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1301 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1303 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1304 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1306 nir_builder_instr_insert(&b
, &instr
->instr
);
1310 unreachable("not reached");
1313 if (ir
->return_deref
)
1314 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1319 struct hash_entry
*entry
=
1320 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1322 nir_function
*callee
= (nir_function
*) entry
->data
;
1324 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1327 nir_deref_instr
*ret_deref
= NULL
;
1328 if (ir
->return_deref
) {
1329 nir_variable
*ret_tmp
=
1330 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1332 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1333 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1336 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1337 actual_node
, &ir
->actual_parameters
) {
1338 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1339 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1341 if (sig_param
->data
.mode
== ir_var_function_out
) {
1342 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1343 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1344 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1345 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1346 nir_src src
= nir_src_for_ssa(val
);
1348 nir_src_copy(&call
->params
[i
], &src
, call
);
1349 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1350 unreachable("unimplemented: inout parameters");
1356 nir_builder_instr_insert(&b
, &call
->instr
);
1358 if (ir
->return_deref
)
1359 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1363 nir_visitor::visit(ir_assignment
*ir
)
1365 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1367 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1368 ir
->lhs
->variable_referenced()->data
.precise
;
1370 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1371 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1372 if (ir
->condition
) {
1373 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1374 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1375 nir_pop_if(&b
, NULL
);
1377 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1382 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1384 ir
->lhs
->accept(this);
1385 nir_deref_instr
*lhs_deref
= this->deref
;
1386 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1388 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1389 /* GLSL IR will give us the input to the write-masked assignment in a
1390 * single packed vector. So, for example, if the writemask is xzw, then
1391 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1395 unsigned component
= 0;
1396 for (unsigned i
= 0; i
< 4; i
++) {
1397 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1399 src
= nir_swizzle(&b
, src
, swiz
, num_components
, !supports_ints
);
1402 if (ir
->condition
) {
1403 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1404 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1405 nir_pop_if(&b
, NULL
);
1407 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1412 * Given an instruction, returns a pointer to its destination or NULL if there
1413 * is no destination.
1415 * Note that this only handles instructions we generate at this level.
1418 get_instr_dest(nir_instr
*instr
)
1420 nir_alu_instr
*alu_instr
;
1421 nir_intrinsic_instr
*intrinsic_instr
;
1422 nir_tex_instr
*tex_instr
;
1424 switch (instr
->type
) {
1425 case nir_instr_type_alu
:
1426 alu_instr
= nir_instr_as_alu(instr
);
1427 return &alu_instr
->dest
.dest
;
1429 case nir_instr_type_intrinsic
:
1430 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1431 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1432 return &intrinsic_instr
->dest
;
1436 case nir_instr_type_tex
:
1437 tex_instr
= nir_instr_as_tex(instr
);
1438 return &tex_instr
->dest
;
1441 unreachable("not reached");
1448 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1451 nir_dest
*dest
= get_instr_dest(instr
);
1454 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1456 nir_builder_instr_insert(&b
, instr
);
1459 assert(dest
->is_ssa
);
1460 this->result
= &dest
->ssa
;
1465 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1468 if (ir
->as_dereference() || ir
->as_constant()) {
1470 * A dereference is being used on the right hand side, which means we
1471 * must emit a variable load.
1474 this->result
= nir_load_deref(&b
, this->deref
);
1477 return this->result
;
1481 type_is_float(glsl_base_type type
)
1483 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1484 type
== GLSL_TYPE_FLOAT16
;
1488 type_is_signed(glsl_base_type type
)
1490 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1491 type
== GLSL_TYPE_INT16
;
1495 nir_visitor::visit(ir_expression
*ir
)
1497 /* Some special cases */
1498 switch (ir
->operation
) {
1499 case ir_binop_ubo_load
: {
1500 nir_intrinsic_instr
*load
=
1501 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1502 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1503 glsl_get_bit_size(ir
->type
);
1504 load
->num_components
= ir
->type
->vector_elements
;
1505 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1506 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1507 intrinsic_set_std430_align(load
, ir
->type
);
1508 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1511 * In UBO's, a true boolean value is any non-zero value, but we consider
1512 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1515 if (ir
->type
->is_boolean())
1516 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1521 case ir_unop_interpolate_at_centroid
:
1522 case ir_binop_interpolate_at_offset
:
1523 case ir_binop_interpolate_at_sample
: {
1524 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1525 ir_swizzle
*swizzle
= NULL
;
1527 /* the api does not allow a swizzle here, but the varying packing code
1528 * may have pushed one into here.
1530 swizzle
= ir
->operands
[0]->as_swizzle();
1532 deref
= swizzle
->val
->as_dereference();
1536 deref
->accept(this);
1538 nir_intrinsic_op op
;
1539 if (this->deref
->mode
== nir_var_shader_in
) {
1540 switch (ir
->operation
) {
1541 case ir_unop_interpolate_at_centroid
:
1542 op
= nir_intrinsic_interp_deref_at_centroid
;
1544 case ir_binop_interpolate_at_offset
:
1545 op
= nir_intrinsic_interp_deref_at_offset
;
1547 case ir_binop_interpolate_at_sample
:
1548 op
= nir_intrinsic_interp_deref_at_sample
;
1551 unreachable("Invalid interpolation intrinsic");
1554 /* This case can happen if the vertex shader does not write the
1555 * given varying. In this case, the linker will lower it to a
1556 * global variable. Since interpolating a variable makes no
1557 * sense, we'll just turn it into a load which will probably
1558 * eventually end up as an SSA definition.
1560 assert(this->deref
->mode
== nir_var_private
);
1561 op
= nir_intrinsic_load_deref
;
1564 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1565 intrin
->num_components
= deref
->type
->vector_elements
;
1566 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1568 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1569 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1570 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1572 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1573 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1576 unsigned swiz
[4] = {
1577 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1580 result
= nir_swizzle(&b
, result
, swiz
,
1581 swizzle
->type
->vector_elements
, false);
1591 nir_ssa_def
*srcs
[4];
1592 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1593 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1595 glsl_base_type types
[4];
1596 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1598 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1600 types
[i
] = GLSL_TYPE_FLOAT
;
1602 glsl_base_type out_type
;
1604 out_type
= ir
->type
->base_type
;
1606 out_type
= GLSL_TYPE_FLOAT
;
1608 switch (ir
->operation
) {
1609 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1610 case ir_unop_logic_not
:
1611 result
= supports_ints
? nir_inot(&b
, srcs
[0]) : nir_fnot(&b
, srcs
[0]);
1614 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1615 : nir_ineg(&b
, srcs
[0]);
1618 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1619 : nir_iabs(&b
, srcs
[0]);
1621 case ir_unop_saturate
:
1622 assert(type_is_float(types
[0]));
1623 result
= nir_fsat(&b
, srcs
[0]);
1626 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1627 : nir_isign(&b
, srcs
[0]);
1629 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1630 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1631 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1632 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1633 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1634 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1635 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1637 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1640 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1643 result
= supports_ints
? nir_b2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1677 case ir_unop_i642u64
:
1678 case ir_unop_u642i64
: {
1679 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1680 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1681 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1682 nir_rounding_mode_undef
),
1683 srcs
[0], NULL
, NULL
, NULL
);
1684 /* b2i and b2f don't have fixed bit-size versions so the builder will
1685 * just assume 32 and we have to fix it up here.
1687 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1691 case ir_unop_bitcast_i2f
:
1692 case ir_unop_bitcast_f2i
:
1693 case ir_unop_bitcast_u2f
:
1694 case ir_unop_bitcast_f2u
:
1695 case ir_unop_bitcast_i642d
:
1696 case ir_unop_bitcast_d2i64
:
1697 case ir_unop_bitcast_u642d
:
1698 case ir_unop_bitcast_d2u64
:
1699 case ir_unop_subroutine_to_int
:
1701 result
= nir_imov(&b
, srcs
[0]);
1703 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1704 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1705 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1706 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1707 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1708 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1709 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1710 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1711 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1712 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1713 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1714 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1715 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1716 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1717 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1718 case ir_unop_pack_snorm_2x16
:
1719 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1721 case ir_unop_pack_snorm_4x8
:
1722 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1724 case ir_unop_pack_unorm_2x16
:
1725 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1727 case ir_unop_pack_unorm_4x8
:
1728 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1730 case ir_unop_pack_half_2x16
:
1731 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1733 case ir_unop_unpack_snorm_2x16
:
1734 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1736 case ir_unop_unpack_snorm_4x8
:
1737 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1739 case ir_unop_unpack_unorm_2x16
:
1740 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1742 case ir_unop_unpack_unorm_4x8
:
1743 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1745 case ir_unop_unpack_half_2x16
:
1746 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1748 case ir_unop_pack_sampler_2x32
:
1749 case ir_unop_pack_image_2x32
:
1750 case ir_unop_pack_double_2x32
:
1751 case ir_unop_pack_int_2x32
:
1752 case ir_unop_pack_uint_2x32
:
1753 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1755 case ir_unop_unpack_sampler_2x32
:
1756 case ir_unop_unpack_image_2x32
:
1757 case ir_unop_unpack_double_2x32
:
1758 case ir_unop_unpack_int_2x32
:
1759 case ir_unop_unpack_uint_2x32
:
1760 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1762 case ir_unop_bitfield_reverse
:
1763 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1765 case ir_unop_bit_count
:
1766 result
= nir_bit_count(&b
, srcs
[0]);
1768 case ir_unop_find_msb
:
1770 case GLSL_TYPE_UINT
:
1771 result
= nir_ufind_msb(&b
, srcs
[0]);
1774 result
= nir_ifind_msb(&b
, srcs
[0]);
1777 unreachable("Invalid type for findMSB()");
1780 case ir_unop_find_lsb
:
1781 result
= nir_find_lsb(&b
, srcs
[0]);
1785 switch (ir
->type
->vector_elements
) {
1787 switch (ir
->operands
[0]->type
->vector_elements
) {
1788 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1789 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1790 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1791 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1792 default: unreachable("not reached");
1796 switch (ir
->operands
[0]->type
->vector_elements
) {
1797 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1798 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1799 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1800 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1801 default: unreachable("not reached");
1805 switch (ir
->operands
[0]->type
->vector_elements
) {
1806 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1807 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1808 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1809 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1810 default: unreachable("not reached");
1814 switch (ir
->operands
[0]->type
->vector_elements
) {
1815 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1816 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1817 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1818 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1819 default: unreachable("not reached");
1823 unreachable("not reached");
1826 case ir_unop_get_buffer_size
: {
1827 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1829 nir_intrinsic_get_buffer_size
);
1830 load
->num_components
= ir
->type
->vector_elements
;
1831 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1832 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1833 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1838 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1839 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1842 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1843 : nir_isub(&b
, srcs
[0], srcs
[1]);
1846 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1847 : nir_imul(&b
, srcs
[0], srcs
[1]);
1850 if (type_is_float(out_type
))
1851 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1852 else if (type_is_signed(out_type
))
1853 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1855 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1858 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1859 : nir_umod(&b
, srcs
[0], srcs
[1]);
1862 if (type_is_float(out_type
))
1863 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1864 else if (type_is_signed(out_type
))
1865 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1867 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1870 if (type_is_float(out_type
))
1871 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1872 else if (type_is_signed(out_type
))
1873 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1875 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1877 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1878 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1879 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1880 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1881 case ir_binop_logic_and
:
1882 result
= supports_ints
? nir_iand(&b
, srcs
[0], srcs
[1])
1883 : nir_fand(&b
, srcs
[0], srcs
[1]);
1885 case ir_binop_logic_or
:
1886 result
= supports_ints
? nir_ior(&b
, srcs
[0], srcs
[1])
1887 : nir_for(&b
, srcs
[0], srcs
[1]);
1889 case ir_binop_logic_xor
:
1890 result
= supports_ints
? nir_ixor(&b
, srcs
[0], srcs
[1])
1891 : nir_fxor(&b
, srcs
[0], srcs
[1]);
1893 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1894 case ir_binop_rshift
:
1895 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1896 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1898 case ir_binop_imul_high
:
1899 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1900 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1902 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1903 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1905 if (supports_ints
) {
1906 if (type_is_float(types
[0]))
1907 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1908 else if (type_is_signed(types
[0]))
1909 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1911 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1913 result
= nir_slt(&b
, srcs
[0], srcs
[1]);
1916 case ir_binop_gequal
:
1917 if (supports_ints
) {
1918 if (type_is_float(types
[0]))
1919 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1920 else if (type_is_signed(types
[0]))
1921 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1923 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1925 result
= nir_sge(&b
, srcs
[0], srcs
[1]);
1928 case ir_binop_equal
:
1929 if (supports_ints
) {
1930 if (type_is_float(types
[0]))
1931 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1933 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1935 result
= nir_seq(&b
, srcs
[0], srcs
[1]);
1938 case ir_binop_nequal
:
1939 if (supports_ints
) {
1940 if (type_is_float(types
[0]))
1941 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1943 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1945 result
= nir_sne(&b
, srcs
[0], srcs
[1]);
1948 case ir_binop_all_equal
:
1949 if (supports_ints
) {
1950 if (type_is_float(types
[0])) {
1951 switch (ir
->operands
[0]->type
->vector_elements
) {
1952 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1953 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1954 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1955 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1957 unreachable("not reached");
1960 switch (ir
->operands
[0]->type
->vector_elements
) {
1961 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1962 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1963 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1964 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1966 unreachable("not reached");
1970 switch (ir
->operands
[0]->type
->vector_elements
) {
1971 case 1: result
= nir_seq(&b
, srcs
[0], srcs
[1]); break;
1972 case 2: result
= nir_fall_equal2(&b
, srcs
[0], srcs
[1]); break;
1973 case 3: result
= nir_fall_equal3(&b
, srcs
[0], srcs
[1]); break;
1974 case 4: result
= nir_fall_equal4(&b
, srcs
[0], srcs
[1]); break;
1976 unreachable("not reached");
1980 case ir_binop_any_nequal
:
1981 if (supports_ints
) {
1982 if (type_is_float(types
[0])) {
1983 switch (ir
->operands
[0]->type
->vector_elements
) {
1984 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1985 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1986 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1987 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1989 unreachable("not reached");
1992 switch (ir
->operands
[0]->type
->vector_elements
) {
1993 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1994 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1995 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1996 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1998 unreachable("not reached");
2002 switch (ir
->operands
[0]->type
->vector_elements
) {
2003 case 1: result
= nir_sne(&b
, srcs
[0], srcs
[1]); break;
2004 case 2: result
= nir_fany_nequal2(&b
, srcs
[0], srcs
[1]); break;
2005 case 3: result
= nir_fany_nequal3(&b
, srcs
[0], srcs
[1]); break;
2006 case 4: result
= nir_fany_nequal4(&b
, srcs
[0], srcs
[1]); break;
2008 unreachable("not reached");
2013 switch (ir
->operands
[0]->type
->vector_elements
) {
2014 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2015 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2016 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2018 unreachable("not reached");
2021 case ir_binop_vector_extract
: {
2022 result
= nir_channel(&b
, srcs
[0], 0);
2023 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2024 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2025 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2031 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2033 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2036 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2040 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2042 result
= nir_fcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2044 case ir_triop_bitfield_extract
:
2045 result
= (out_type
== GLSL_TYPE_INT
) ?
2046 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2047 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2049 case ir_quadop_bitfield_insert
:
2050 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2052 case ir_quadop_vector
:
2053 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2057 unreachable("not reached");
2062 nir_visitor::visit(ir_swizzle
*ir
)
2064 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2065 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2066 ir
->type
->vector_elements
, !supports_ints
);
2070 nir_visitor::visit(ir_texture
*ir
)
2077 num_srcs
= 1; /* coordinate */
2082 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2083 num_srcs
= 2; /* coordinate, bias/lod */
2087 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2093 if (ir
->lod_info
.lod
!= NULL
)
2094 num_srcs
= 2; /* coordinate, lod */
2096 num_srcs
= 1; /* coordinate */
2100 op
= nir_texop_txf_ms
;
2101 num_srcs
= 2; /* coordinate, sample_index */
2106 if (ir
->lod_info
.lod
!= NULL
)
2107 num_srcs
= 1; /* lod */
2114 num_srcs
= 1; /* coordinate */
2119 num_srcs
= 1; /* coordinate */
2122 case ir_query_levels
:
2123 op
= nir_texop_query_levels
;
2127 case ir_texture_samples
:
2128 op
= nir_texop_texture_samples
;
2132 case ir_samples_identical
:
2133 op
= nir_texop_samples_identical
;
2134 num_srcs
= 1; /* coordinate */
2138 unreachable("not reached");
2141 if (ir
->projector
!= NULL
)
2143 if (ir
->shadow_comparator
!= NULL
)
2145 if (ir
->offset
!= NULL
)
2148 /* Add one for the texture deref */
2151 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2154 instr
->sampler_dim
=
2155 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2156 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2157 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2158 if (instr
->is_shadow
)
2159 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2160 switch (ir
->type
->base_type
) {
2161 case GLSL_TYPE_FLOAT
:
2162 instr
->dest_type
= nir_type_float
;
2165 instr
->dest_type
= nir_type_int
;
2167 case GLSL_TYPE_BOOL
:
2168 case GLSL_TYPE_UINT
:
2169 instr
->dest_type
= nir_type_uint
;
2172 unreachable("not reached");
2175 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2176 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2177 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2178 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2179 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2181 unsigned src_number
= 2;
2183 if (ir
->coordinate
!= NULL
) {
2184 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2185 instr
->src
[src_number
].src
=
2186 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2187 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2191 if (ir
->projector
!= NULL
) {
2192 instr
->src
[src_number
].src
=
2193 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2194 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2198 if (ir
->shadow_comparator
!= NULL
) {
2199 instr
->src
[src_number
].src
=
2200 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2201 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2205 if (ir
->offset
!= NULL
) {
2206 /* we don't support multiple offsets yet */
2207 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2209 instr
->src
[src_number
].src
=
2210 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2211 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2217 instr
->src
[src_number
].src
=
2218 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2219 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2226 if (ir
->lod_info
.lod
!= NULL
) {
2227 instr
->src
[src_number
].src
=
2228 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2229 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2235 instr
->src
[src_number
].src
=
2236 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2237 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2239 instr
->src
[src_number
].src
=
2240 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2241 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2246 instr
->src
[src_number
].src
=
2247 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2248 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2253 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2260 assert(src_number
== num_srcs
);
2262 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2263 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2267 nir_visitor::visit(ir_constant
*ir
)
2270 * We don't know if this variable is an array or struct that gets
2271 * dereferenced, so do the safe thing an make it a variable with a
2272 * constant initializer and return a dereference.
2276 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2277 var
->data
.read_only
= true;
2278 var
->constant_initializer
= constant_copy(ir
, var
);
2280 this->deref
= nir_build_deref_var(&b
, var
);
2284 nir_visitor::visit(ir_dereference_variable
*ir
)
2286 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2287 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2289 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2290 if (param
== ir
->variable_referenced()) {
2296 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2297 nir_var_function
, ir
->type
, 0);
2301 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2303 struct hash_entry
*entry
=
2304 _mesa_hash_table_search(this->var_table
, ir
->var
);
2306 nir_variable
*var
= (nir_variable
*) entry
->data
;
2308 this->deref
= nir_build_deref_var(&b
, var
);
2312 nir_visitor::visit(ir_dereference_record
*ir
)
2314 ir
->record
->accept(this);
2316 int field_index
= ir
->field_idx
;
2317 assert(field_index
>= 0);
2319 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2323 nir_visitor::visit(ir_dereference_array
*ir
)
2325 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2327 ir
->array
->accept(this);
2329 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2333 nir_visitor::visit(ir_barrier
*)
2335 nir_intrinsic_instr
*instr
=
2336 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2337 nir_builder_instr_insert(&b
, &instr
->instr
);