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 /* most recent deref instruction created */
98 nir_deref_instr
*deref
;
100 /* whether the IR we're operating on is per-function or global */
103 ir_function_signature
*sig
;
105 /* map of ir_variable -> nir_variable */
106 struct hash_table
*var_table
;
108 /* map of ir_function_signature -> nir_function_overload */
109 struct hash_table
*overload_table
;
113 * This visitor runs before the main visitor, calling create_function() for
114 * each function so that the main visitor can resolve forward references in
118 class nir_function_visitor
: public ir_hierarchical_visitor
121 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
124 virtual ir_visitor_status
visit_enter(ir_function
*);
127 nir_visitor
*visitor
;
130 } /* end of anonymous namespace */
133 glsl_to_nir(const struct gl_shader_program
*shader_prog
,
134 gl_shader_stage stage
,
135 const nir_shader_compiler_options
*options
)
137 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
139 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
142 nir_visitor
v1(shader
);
143 nir_function_visitor
v2(&v1
);
145 visit_exec_list(sh
->ir
, &v1
);
147 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
149 /* Remap the locations to slots so those requiring two slots will occupy
150 * two locations. For instance, if we have in the IR code a dvec3 attr0 in
151 * location 0 and vec4 attr1 in location 1, in NIR attr0 will use
152 * locations/slots 0 and 1, and attr1 will use location/slot 2 */
153 if (shader
->info
.stage
== MESA_SHADER_VERTEX
)
154 nir_remap_dual_slot_attributes(shader
, &sh
->Program
->DualSlotInputs
);
156 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
157 if (shader_prog
->Label
)
158 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
160 /* Check for transform feedback varyings specified via the API */
161 shader
->info
.has_transform_feedback_varyings
=
162 shader_prog
->TransformFeedback
.NumVarying
> 0;
164 /* Check for transform feedback varyings specified in the Shader */
165 if (shader_prog
->last_vert_prog
)
166 shader
->info
.has_transform_feedback_varyings
|=
167 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
172 nir_visitor::nir_visitor(nir_shader
*shader
)
174 this->supports_ints
= shader
->options
->native_integers
;
175 this->shader
= shader
;
176 this->is_global
= true;
177 this->var_table
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
178 _mesa_key_pointer_equal
);
179 this->overload_table
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
180 _mesa_key_pointer_equal
);
183 memset(&this->b
, 0, sizeof(this->b
));
186 nir_visitor::~nir_visitor()
188 _mesa_hash_table_destroy(this->var_table
, NULL
);
189 _mesa_hash_table_destroy(this->overload_table
, NULL
);
193 nir_visitor::evaluate_deref(ir_instruction
*ir
)
199 static nir_constant
*
200 constant_copy(ir_constant
*ir
, void *mem_ctx
)
205 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
207 const unsigned rows
= ir
->type
->vector_elements
;
208 const unsigned cols
= ir
->type
->matrix_columns
;
211 ret
->num_elements
= 0;
212 switch (ir
->type
->base_type
) {
214 /* Only float base types can be matrices. */
217 for (unsigned r
= 0; r
< rows
; r
++)
218 ret
->values
[0].u32
[r
] = ir
->value
.u
[r
];
223 /* Only float base types can be matrices. */
226 for (unsigned r
= 0; r
< rows
; r
++)
227 ret
->values
[0].i32
[r
] = ir
->value
.i
[r
];
231 case GLSL_TYPE_FLOAT
:
232 for (unsigned c
= 0; c
< cols
; c
++) {
233 for (unsigned r
= 0; r
< rows
; r
++)
234 ret
->values
[c
].f32
[r
] = ir
->value
.f
[c
* rows
+ r
];
238 case GLSL_TYPE_DOUBLE
:
239 for (unsigned c
= 0; c
< cols
; c
++) {
240 for (unsigned r
= 0; r
< rows
; r
++)
241 ret
->values
[c
].f64
[r
] = ir
->value
.d
[c
* rows
+ r
];
245 case GLSL_TYPE_UINT64
:
246 /* Only float base types can be matrices. */
249 for (unsigned r
= 0; r
< rows
; r
++)
250 ret
->values
[0].u64
[r
] = ir
->value
.u64
[r
];
253 case GLSL_TYPE_INT64
:
254 /* Only float base types can be matrices. */
257 for (unsigned r
= 0; r
< rows
; r
++)
258 ret
->values
[0].i64
[r
] = ir
->value
.i64
[r
];
262 /* Only float base types can be matrices. */
265 for (unsigned r
= 0; r
< rows
; r
++)
266 ret
->values
[0].b
[r
] = ir
->value
.b
[r
];
270 case GLSL_TYPE_STRUCT
:
271 case GLSL_TYPE_ARRAY
:
272 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
274 ret
->num_elements
= ir
->type
->length
;
276 for (i
= 0; i
< ir
->type
->length
; i
++)
277 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
281 unreachable("not reached");
288 nir_visitor::visit(ir_variable
*ir
)
290 /* TODO: In future we should switch to using the NIR lowering pass but for
291 * now just ignore these variables as GLSL IR should have lowered them.
292 * Anything remaining are just dead vars that weren't cleaned up.
294 if (ir
->data
.mode
== ir_var_shader_shared
)
297 /* FINISHME: inout parameters */
298 assert(ir
->data
.mode
!= ir_var_function_inout
);
300 if (ir
->data
.mode
== ir_var_function_out
)
303 nir_variable
*var
= rzalloc(shader
, nir_variable
);
304 var
->type
= ir
->type
;
305 var
->name
= ralloc_strdup(var
, ir
->name
);
307 var
->data
.always_active_io
= ir
->data
.always_active_io
;
308 var
->data
.read_only
= ir
->data
.read_only
;
309 var
->data
.centroid
= ir
->data
.centroid
;
310 var
->data
.sample
= ir
->data
.sample
;
311 var
->data
.patch
= ir
->data
.patch
;
312 var
->data
.invariant
= ir
->data
.invariant
;
313 var
->data
.location
= ir
->data
.location
;
314 var
->data
.stream
= ir
->data
.stream
;
315 var
->data
.compact
= false;
317 switch(ir
->data
.mode
) {
319 case ir_var_temporary
:
321 var
->data
.mode
= nir_var_private
;
323 var
->data
.mode
= nir_var_function
;
326 case ir_var_function_in
:
327 case ir_var_const_in
:
328 var
->data
.mode
= nir_var_function
;
331 case ir_var_shader_in
:
332 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
&&
333 ir
->data
.location
== VARYING_SLOT_FACE
) {
334 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
335 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
336 var
->data
.mode
= nir_var_system_value
;
337 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
338 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
339 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
340 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
341 var
->data
.mode
= nir_var_system_value
;
343 var
->data
.mode
= nir_var_shader_in
;
345 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
346 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
347 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
348 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
353 case ir_var_shader_out
:
354 var
->data
.mode
= nir_var_shader_out
;
355 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
356 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
357 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
358 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
363 if (ir
->get_interface_type())
364 var
->data
.mode
= nir_var_ubo
;
366 var
->data
.mode
= nir_var_uniform
;
369 case ir_var_shader_storage
:
370 var
->data
.mode
= nir_var_ssbo
;
373 case ir_var_system_value
:
374 var
->data
.mode
= nir_var_system_value
;
378 unreachable("not reached");
381 var
->data
.interpolation
= ir
->data
.interpolation
;
382 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
383 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
384 var
->data
.location_frac
= ir
->data
.location_frac
;
386 if (var
->data
.pixel_center_integer
) {
387 assert(shader
->info
.stage
== MESA_SHADER_FRAGMENT
);
388 shader
->info
.fs
.pixel_center_integer
= true;
391 switch (ir
->data
.depth_layout
) {
392 case ir_depth_layout_none
:
393 var
->data
.depth_layout
= nir_depth_layout_none
;
395 case ir_depth_layout_any
:
396 var
->data
.depth_layout
= nir_depth_layout_any
;
398 case ir_depth_layout_greater
:
399 var
->data
.depth_layout
= nir_depth_layout_greater
;
401 case ir_depth_layout_less
:
402 var
->data
.depth_layout
= nir_depth_layout_less
;
404 case ir_depth_layout_unchanged
:
405 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
408 unreachable("not reached");
411 var
->data
.index
= ir
->data
.index
;
412 var
->data
.descriptor_set
= 0;
413 var
->data
.binding
= ir
->data
.binding
;
414 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
415 var
->data
.bindless
= ir
->data
.bindless
;
416 var
->data
.offset
= ir
->data
.offset
;
418 unsigned image_access
= 0;
419 if (ir
->data
.memory_read_only
)
420 image_access
|= ACCESS_NON_WRITEABLE
;
421 if (ir
->data
.memory_write_only
)
422 image_access
|= ACCESS_NON_READABLE
;
423 if (ir
->data
.memory_coherent
)
424 image_access
|= ACCESS_COHERENT
;
425 if (ir
->data
.memory_volatile
)
426 image_access
|= ACCESS_VOLATILE
;
427 if (ir
->data
.memory_restrict
)
428 image_access
|= ACCESS_RESTRICT
;
429 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
430 var
->data
.image
.format
= ir
->data
.image_format
;
432 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
433 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
434 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
435 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
436 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
438 var
->num_state_slots
= ir
->get_num_state_slots();
439 if (var
->num_state_slots
> 0) {
440 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
441 var
->num_state_slots
);
443 ir_state_slot
*state_slots
= ir
->get_state_slots();
444 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
445 for (unsigned j
= 0; j
< 5; j
++)
446 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
447 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
450 var
->state_slots
= NULL
;
453 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
455 var
->interface_type
= ir
->get_interface_type();
457 if (var
->data
.mode
== nir_var_function
)
458 nir_function_impl_add_variable(impl
, var
);
460 nir_shader_add_variable(shader
, var
);
462 _mesa_hash_table_insert(var_table
, ir
, var
);
466 nir_function_visitor::visit_enter(ir_function
*ir
)
468 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
469 visitor
->create_function(sig
);
471 return visit_continue_with_parent
;
475 nir_visitor::create_function(ir_function_signature
*ir
)
477 if (ir
->is_intrinsic())
480 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
481 if (strcmp(ir
->function_name(), "main") == 0)
482 func
->is_entrypoint
= true;
484 func
->num_params
= ir
->parameters
.length() +
485 (ir
->return_type
!= glsl_type::void_type
);
486 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
490 if (ir
->return_type
!= glsl_type::void_type
) {
491 /* The return value is a variable deref (basically an out parameter) */
492 func
->params
[np
].num_components
= 1;
493 func
->params
[np
].bit_size
= 32;
497 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
498 /* FINISHME: pass arrays, structs, etc by reference? */
499 assert(param
->type
->is_vector() || param
->type
->is_scalar());
501 if (param
->data
.mode
== ir_var_function_in
) {
502 func
->params
[np
].num_components
= param
->type
->vector_elements
;
503 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
505 func
->params
[np
].num_components
= 1;
506 func
->params
[np
].bit_size
= 32;
510 assert(np
== func
->num_params
);
512 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
516 nir_visitor::visit(ir_function
*ir
)
518 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
523 nir_visitor::visit(ir_function_signature
*ir
)
525 if (ir
->is_intrinsic())
530 struct hash_entry
*entry
=
531 _mesa_hash_table_search(this->overload_table
, ir
);
534 nir_function
*func
= (nir_function
*) entry
->data
;
536 if (ir
->is_defined
) {
537 nir_function_impl
*impl
= nir_function_impl_create(func
);
540 this->is_global
= false;
542 nir_builder_init(&b
, impl
);
543 b
.cursor
= nir_after_cf_list(&impl
->body
);
545 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
547 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
549 nir_local_variable_create(impl
, param
->type
, param
->name
);
551 if (param
->data
.mode
== ir_var_function_in
) {
552 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
555 _mesa_hash_table_insert(var_table
, param
, var
);
559 visit_exec_list(&ir
->body
, this);
561 this->is_global
= true;
568 nir_visitor::visit(ir_loop
*ir
)
571 visit_exec_list(&ir
->body_instructions
, this);
572 nir_pop_loop(&b
, NULL
);
576 nir_visitor::visit(ir_if
*ir
)
578 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
579 visit_exec_list(&ir
->then_instructions
, this);
580 nir_push_else(&b
, NULL
);
581 visit_exec_list(&ir
->else_instructions
, this);
582 nir_pop_if(&b
, NULL
);
586 nir_visitor::visit(ir_discard
*ir
)
589 * discards aren't treated as control flow, because before we lower them
590 * they can appear anywhere in the shader and the stuff after them may still
591 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
592 * discards will be immediately followed by a return.
595 nir_intrinsic_instr
*discard
;
597 discard
= nir_intrinsic_instr_create(this->shader
,
598 nir_intrinsic_discard_if
);
600 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
602 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
605 nir_builder_instr_insert(&b
, &discard
->instr
);
609 nir_visitor::visit(ir_emit_vertex
*ir
)
611 nir_intrinsic_instr
*instr
=
612 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
613 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
614 nir_builder_instr_insert(&b
, &instr
->instr
);
618 nir_visitor::visit(ir_end_primitive
*ir
)
620 nir_intrinsic_instr
*instr
=
621 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
622 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
623 nir_builder_instr_insert(&b
, &instr
->instr
);
627 nir_visitor::visit(ir_loop_jump
*ir
)
631 case ir_loop_jump::jump_break
:
632 type
= nir_jump_break
;
634 case ir_loop_jump::jump_continue
:
635 type
= nir_jump_continue
;
638 unreachable("not reached");
641 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
642 nir_builder_instr_insert(&b
, &instr
->instr
);
646 nir_visitor::visit(ir_return
*ir
)
648 if (ir
->value
!= NULL
) {
649 nir_deref_instr
*ret_deref
=
650 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
651 nir_var_function
, ir
->value
->type
, 0);
653 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
654 nir_store_deref(&b
, ret_deref
, val
, ~0);
657 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
658 nir_builder_instr_insert(&b
, &instr
->instr
);
662 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
664 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
665 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
666 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
670 nir_visitor::visit(ir_call
*ir
)
672 if (ir
->callee
->is_intrinsic()) {
675 switch (ir
->callee
->intrinsic_id
) {
676 case ir_intrinsic_atomic_counter_read
:
677 op
= nir_intrinsic_atomic_counter_read_deref
;
679 case ir_intrinsic_atomic_counter_increment
:
680 op
= nir_intrinsic_atomic_counter_inc_deref
;
682 case ir_intrinsic_atomic_counter_predecrement
:
683 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
685 case ir_intrinsic_atomic_counter_add
:
686 op
= nir_intrinsic_atomic_counter_add_deref
;
688 case ir_intrinsic_atomic_counter_and
:
689 op
= nir_intrinsic_atomic_counter_and_deref
;
691 case ir_intrinsic_atomic_counter_or
:
692 op
= nir_intrinsic_atomic_counter_or_deref
;
694 case ir_intrinsic_atomic_counter_xor
:
695 op
= nir_intrinsic_atomic_counter_xor_deref
;
697 case ir_intrinsic_atomic_counter_min
:
698 op
= nir_intrinsic_atomic_counter_min_deref
;
700 case ir_intrinsic_atomic_counter_max
:
701 op
= nir_intrinsic_atomic_counter_max_deref
;
703 case ir_intrinsic_atomic_counter_exchange
:
704 op
= nir_intrinsic_atomic_counter_exchange_deref
;
706 case ir_intrinsic_atomic_counter_comp_swap
:
707 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
709 case ir_intrinsic_image_load
:
710 op
= nir_intrinsic_image_deref_load
;
712 case ir_intrinsic_image_store
:
713 op
= nir_intrinsic_image_deref_store
;
715 case ir_intrinsic_image_atomic_add
:
716 op
= ir
->return_deref
->type
->is_integer_32_64()
717 ? nir_intrinsic_image_deref_atomic_add
718 : nir_intrinsic_image_deref_atomic_fadd
;
720 case ir_intrinsic_image_atomic_min
:
721 op
= nir_intrinsic_image_deref_atomic_min
;
723 case ir_intrinsic_image_atomic_max
:
724 op
= nir_intrinsic_image_deref_atomic_max
;
726 case ir_intrinsic_image_atomic_and
:
727 op
= nir_intrinsic_image_deref_atomic_and
;
729 case ir_intrinsic_image_atomic_or
:
730 op
= nir_intrinsic_image_deref_atomic_or
;
732 case ir_intrinsic_image_atomic_xor
:
733 op
= nir_intrinsic_image_deref_atomic_xor
;
735 case ir_intrinsic_image_atomic_exchange
:
736 op
= nir_intrinsic_image_deref_atomic_exchange
;
738 case ir_intrinsic_image_atomic_comp_swap
:
739 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
741 case ir_intrinsic_memory_barrier
:
742 op
= nir_intrinsic_memory_barrier
;
744 case ir_intrinsic_image_size
:
745 op
= nir_intrinsic_image_deref_size
;
747 case ir_intrinsic_image_samples
:
748 op
= nir_intrinsic_image_deref_samples
;
750 case ir_intrinsic_ssbo_store
:
751 op
= nir_intrinsic_store_ssbo
;
753 case ir_intrinsic_ssbo_load
:
754 op
= nir_intrinsic_load_ssbo
;
756 case ir_intrinsic_ssbo_atomic_add
:
757 op
= ir
->return_deref
->type
->is_integer_32_64()
758 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
760 case ir_intrinsic_ssbo_atomic_and
:
761 op
= nir_intrinsic_ssbo_atomic_and
;
763 case ir_intrinsic_ssbo_atomic_or
:
764 op
= nir_intrinsic_ssbo_atomic_or
;
766 case ir_intrinsic_ssbo_atomic_xor
:
767 op
= nir_intrinsic_ssbo_atomic_xor
;
769 case ir_intrinsic_ssbo_atomic_min
:
770 assert(ir
->return_deref
);
771 if (ir
->return_deref
->type
== glsl_type::int_type
)
772 op
= nir_intrinsic_ssbo_atomic_imin
;
773 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
774 op
= nir_intrinsic_ssbo_atomic_umin
;
775 else if (ir
->return_deref
->type
== glsl_type::float_type
)
776 op
= nir_intrinsic_ssbo_atomic_fmin
;
778 unreachable("Invalid type");
780 case ir_intrinsic_ssbo_atomic_max
:
781 assert(ir
->return_deref
);
782 if (ir
->return_deref
->type
== glsl_type::int_type
)
783 op
= nir_intrinsic_ssbo_atomic_imax
;
784 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
785 op
= nir_intrinsic_ssbo_atomic_umax
;
786 else if (ir
->return_deref
->type
== glsl_type::float_type
)
787 op
= nir_intrinsic_ssbo_atomic_fmax
;
789 unreachable("Invalid type");
791 case ir_intrinsic_ssbo_atomic_exchange
:
792 op
= nir_intrinsic_ssbo_atomic_exchange
;
794 case ir_intrinsic_ssbo_atomic_comp_swap
:
795 op
= ir
->return_deref
->type
->is_integer_32_64()
796 ? nir_intrinsic_ssbo_atomic_comp_swap
797 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
799 case ir_intrinsic_shader_clock
:
800 op
= nir_intrinsic_shader_clock
;
802 case ir_intrinsic_begin_invocation_interlock
:
803 op
= nir_intrinsic_begin_invocation_interlock
;
805 case ir_intrinsic_end_invocation_interlock
:
806 op
= nir_intrinsic_end_invocation_interlock
;
808 case ir_intrinsic_group_memory_barrier
:
809 op
= nir_intrinsic_group_memory_barrier
;
811 case ir_intrinsic_memory_barrier_atomic_counter
:
812 op
= nir_intrinsic_memory_barrier_atomic_counter
;
814 case ir_intrinsic_memory_barrier_buffer
:
815 op
= nir_intrinsic_memory_barrier_buffer
;
817 case ir_intrinsic_memory_barrier_image
:
818 op
= nir_intrinsic_memory_barrier_image
;
820 case ir_intrinsic_memory_barrier_shared
:
821 op
= nir_intrinsic_memory_barrier_shared
;
823 case ir_intrinsic_shared_load
:
824 op
= nir_intrinsic_load_shared
;
826 case ir_intrinsic_shared_store
:
827 op
= nir_intrinsic_store_shared
;
829 case ir_intrinsic_shared_atomic_add
:
830 op
= ir
->return_deref
->type
->is_integer_32_64()
831 ? nir_intrinsic_shared_atomic_add
832 : nir_intrinsic_shared_atomic_fadd
;
834 case ir_intrinsic_shared_atomic_and
:
835 op
= nir_intrinsic_shared_atomic_and
;
837 case ir_intrinsic_shared_atomic_or
:
838 op
= nir_intrinsic_shared_atomic_or
;
840 case ir_intrinsic_shared_atomic_xor
:
841 op
= nir_intrinsic_shared_atomic_xor
;
843 case ir_intrinsic_shared_atomic_min
:
844 assert(ir
->return_deref
);
845 if (ir
->return_deref
->type
== glsl_type::int_type
)
846 op
= nir_intrinsic_shared_atomic_imin
;
847 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
848 op
= nir_intrinsic_shared_atomic_umin
;
849 else if (ir
->return_deref
->type
== glsl_type::float_type
)
850 op
= nir_intrinsic_shared_atomic_fmin
;
852 unreachable("Invalid type");
854 case ir_intrinsic_shared_atomic_max
:
855 assert(ir
->return_deref
);
856 if (ir
->return_deref
->type
== glsl_type::int_type
)
857 op
= nir_intrinsic_shared_atomic_imax
;
858 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
859 op
= nir_intrinsic_shared_atomic_umax
;
860 else if (ir
->return_deref
->type
== glsl_type::float_type
)
861 op
= nir_intrinsic_shared_atomic_fmax
;
863 unreachable("Invalid type");
865 case ir_intrinsic_shared_atomic_exchange
:
866 op
= nir_intrinsic_shared_atomic_exchange
;
868 case ir_intrinsic_shared_atomic_comp_swap
:
869 op
= ir
->return_deref
->type
->is_integer_32_64()
870 ? nir_intrinsic_shared_atomic_comp_swap
871 : nir_intrinsic_shared_atomic_fcomp_swap
;
873 case ir_intrinsic_vote_any
:
874 op
= nir_intrinsic_vote_any
;
876 case ir_intrinsic_vote_all
:
877 op
= nir_intrinsic_vote_all
;
879 case ir_intrinsic_vote_eq
:
880 op
= nir_intrinsic_vote_ieq
;
882 case ir_intrinsic_ballot
:
883 op
= nir_intrinsic_ballot
;
885 case ir_intrinsic_read_invocation
:
886 op
= nir_intrinsic_read_invocation
;
888 case ir_intrinsic_read_first_invocation
:
889 op
= nir_intrinsic_read_first_invocation
;
892 unreachable("not reached");
895 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
896 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
899 case nir_intrinsic_atomic_counter_read_deref
:
900 case nir_intrinsic_atomic_counter_inc_deref
:
901 case nir_intrinsic_atomic_counter_pre_dec_deref
:
902 case nir_intrinsic_atomic_counter_add_deref
:
903 case nir_intrinsic_atomic_counter_min_deref
:
904 case nir_intrinsic_atomic_counter_max_deref
:
905 case nir_intrinsic_atomic_counter_and_deref
:
906 case nir_intrinsic_atomic_counter_or_deref
:
907 case nir_intrinsic_atomic_counter_xor_deref
:
908 case nir_intrinsic_atomic_counter_exchange_deref
:
909 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
910 /* Set the counter variable dereference. */
911 exec_node
*param
= ir
->actual_parameters
.get_head();
912 ir_dereference
*counter
= (ir_dereference
*)param
;
914 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
915 param
= param
->get_next();
917 /* Set the intrinsic destination. */
918 if (ir
->return_deref
) {
919 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
922 /* Set the intrinsic parameters. */
923 if (!param
->is_tail_sentinel()) {
925 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
926 param
= param
->get_next();
929 if (!param
->is_tail_sentinel()) {
931 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
932 param
= param
->get_next();
935 nir_builder_instr_insert(&b
, &instr
->instr
);
938 case nir_intrinsic_image_deref_load
:
939 case nir_intrinsic_image_deref_store
:
940 case nir_intrinsic_image_deref_atomic_add
:
941 case nir_intrinsic_image_deref_atomic_min
:
942 case nir_intrinsic_image_deref_atomic_max
:
943 case nir_intrinsic_image_deref_atomic_and
:
944 case nir_intrinsic_image_deref_atomic_or
:
945 case nir_intrinsic_image_deref_atomic_xor
:
946 case nir_intrinsic_image_deref_atomic_exchange
:
947 case nir_intrinsic_image_deref_atomic_comp_swap
:
948 case nir_intrinsic_image_deref_atomic_fadd
:
949 case nir_intrinsic_image_deref_samples
:
950 case nir_intrinsic_image_deref_size
: {
951 nir_ssa_undef_instr
*instr_undef
=
952 nir_ssa_undef_instr_create(shader
, 1, 32);
953 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
955 /* Set the image variable dereference. */
956 exec_node
*param
= ir
->actual_parameters
.get_head();
957 ir_dereference
*image
= (ir_dereference
*)param
;
958 const glsl_type
*type
=
959 image
->variable_referenced()->type
->without_array();
961 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
962 param
= param
->get_next();
964 /* Set the intrinsic destination. */
965 if (ir
->return_deref
) {
966 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
967 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
968 num_components
, 32, NULL
);
971 if (op
== nir_intrinsic_image_deref_size
) {
972 instr
->num_components
= instr
->dest
.ssa
.num_components
;
973 } else if (op
== nir_intrinsic_image_deref_load
||
974 op
== nir_intrinsic_image_deref_store
) {
975 instr
->num_components
= 4;
978 if (op
== nir_intrinsic_image_deref_size
||
979 op
== nir_intrinsic_image_deref_samples
) {
980 nir_builder_instr_insert(&b
, &instr
->instr
);
984 /* Set the address argument, extending the coordinate vector to four
987 nir_ssa_def
*src_addr
=
988 evaluate_rvalue((ir_dereference
*)param
);
989 nir_ssa_def
*srcs
[4];
991 for (int i
= 0; i
< 4; i
++) {
992 if (i
< type
->coordinate_components())
993 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
995 srcs
[i
] = &instr_undef
->def
;
998 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
999 param
= param
->get_next();
1001 /* Set the sample argument, which is undefined for single-sample
1004 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1006 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1007 param
= param
->get_next();
1009 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1012 /* Set the intrinsic parameters. */
1013 if (!param
->is_tail_sentinel()) {
1015 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1016 param
= param
->get_next();
1019 if (!param
->is_tail_sentinel()) {
1021 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1022 param
= param
->get_next();
1024 nir_builder_instr_insert(&b
, &instr
->instr
);
1027 case nir_intrinsic_memory_barrier
:
1028 case nir_intrinsic_group_memory_barrier
:
1029 case nir_intrinsic_memory_barrier_atomic_counter
:
1030 case nir_intrinsic_memory_barrier_buffer
:
1031 case nir_intrinsic_memory_barrier_image
:
1032 case nir_intrinsic_memory_barrier_shared
:
1033 nir_builder_instr_insert(&b
, &instr
->instr
);
1035 case nir_intrinsic_shader_clock
:
1036 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1037 instr
->num_components
= 2;
1038 nir_builder_instr_insert(&b
, &instr
->instr
);
1040 case nir_intrinsic_begin_invocation_interlock
:
1041 nir_builder_instr_insert(&b
, &instr
->instr
);
1043 case nir_intrinsic_end_invocation_interlock
:
1044 nir_builder_instr_insert(&b
, &instr
->instr
);
1046 case nir_intrinsic_store_ssbo
: {
1047 exec_node
*param
= ir
->actual_parameters
.get_head();
1048 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1050 param
= param
->get_next();
1051 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1053 param
= param
->get_next();
1054 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1056 param
= param
->get_next();
1057 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1060 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1061 if (val
->type
->is_boolean())
1062 nir_val
= nir_b2i32(&b
, nir_val
);
1064 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1065 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1066 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1067 intrinsic_set_std430_align(instr
, val
->type
);
1068 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1069 instr
->num_components
= val
->type
->vector_elements
;
1071 nir_builder_instr_insert(&b
, &instr
->instr
);
1074 case nir_intrinsic_load_ssbo
: {
1075 exec_node
*param
= ir
->actual_parameters
.get_head();
1076 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1078 param
= param
->get_next();
1079 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1081 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1082 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1084 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1085 instr
->num_components
= type
->vector_elements
;
1086 intrinsic_set_std430_align(instr
, type
);
1088 /* Setup destination register */
1089 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1090 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1091 type
->vector_elements
, bit_size
, NULL
);
1093 /* Insert the created nir instruction now since in the case of boolean
1094 * result we will need to emit another instruction after it
1096 nir_builder_instr_insert(&b
, &instr
->instr
);
1099 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1100 * consider a true boolean to be ~0. Fix this up with a != 0
1103 if (type
->is_boolean())
1104 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1107 case nir_intrinsic_ssbo_atomic_add
:
1108 case nir_intrinsic_ssbo_atomic_imin
:
1109 case nir_intrinsic_ssbo_atomic_umin
:
1110 case nir_intrinsic_ssbo_atomic_imax
:
1111 case nir_intrinsic_ssbo_atomic_umax
:
1112 case nir_intrinsic_ssbo_atomic_and
:
1113 case nir_intrinsic_ssbo_atomic_or
:
1114 case nir_intrinsic_ssbo_atomic_xor
:
1115 case nir_intrinsic_ssbo_atomic_exchange
:
1116 case nir_intrinsic_ssbo_atomic_comp_swap
:
1117 case nir_intrinsic_ssbo_atomic_fadd
:
1118 case nir_intrinsic_ssbo_atomic_fmin
:
1119 case nir_intrinsic_ssbo_atomic_fmax
:
1120 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1121 int param_count
= ir
->actual_parameters
.length();
1122 assert(param_count
== 3 || param_count
== 4);
1125 exec_node
*param
= ir
->actual_parameters
.get_head();
1126 ir_instruction
*inst
= (ir_instruction
*) param
;
1127 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1130 param
= param
->get_next();
1131 inst
= (ir_instruction
*) param
;
1132 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1134 /* data1 parameter (this is always present) */
1135 param
= param
->get_next();
1136 inst
= (ir_instruction
*) param
;
1137 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1139 /* data2 parameter (only with atomic_comp_swap) */
1140 if (param_count
== 4) {
1141 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1142 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1143 param
= param
->get_next();
1144 inst
= (ir_instruction
*) param
;
1145 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1149 assert(ir
->return_deref
);
1150 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1151 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1152 nir_builder_instr_insert(&b
, &instr
->instr
);
1155 case nir_intrinsic_load_shared
: {
1156 exec_node
*param
= ir
->actual_parameters
.get_head();
1157 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1159 nir_intrinsic_set_base(instr
, 0);
1160 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1162 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1163 instr
->num_components
= type
->vector_elements
;
1164 intrinsic_set_std430_align(instr
, type
);
1166 /* Setup destination register */
1167 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1168 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1169 type
->vector_elements
, bit_size
, NULL
);
1171 nir_builder_instr_insert(&b
, &instr
->instr
);
1173 /* The value in shared memory is a 32-bit value */
1174 if (type
->is_boolean())
1175 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1178 case nir_intrinsic_store_shared
: {
1179 exec_node
*param
= ir
->actual_parameters
.get_head();
1180 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1182 param
= param
->get_next();
1183 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1185 param
= param
->get_next();
1186 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1189 nir_intrinsic_set_base(instr
, 0);
1190 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1192 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1194 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1195 /* The value in shared memory is a 32-bit value */
1196 if (val
->type
->is_boolean())
1197 nir_val
= nir_b2i32(&b
, nir_val
);
1199 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1200 instr
->num_components
= val
->type
->vector_elements
;
1201 intrinsic_set_std430_align(instr
, val
->type
);
1203 nir_builder_instr_insert(&b
, &instr
->instr
);
1206 case nir_intrinsic_shared_atomic_add
:
1207 case nir_intrinsic_shared_atomic_imin
:
1208 case nir_intrinsic_shared_atomic_umin
:
1209 case nir_intrinsic_shared_atomic_imax
:
1210 case nir_intrinsic_shared_atomic_umax
:
1211 case nir_intrinsic_shared_atomic_and
:
1212 case nir_intrinsic_shared_atomic_or
:
1213 case nir_intrinsic_shared_atomic_xor
:
1214 case nir_intrinsic_shared_atomic_exchange
:
1215 case nir_intrinsic_shared_atomic_comp_swap
:
1216 case nir_intrinsic_shared_atomic_fadd
:
1217 case nir_intrinsic_shared_atomic_fmin
:
1218 case nir_intrinsic_shared_atomic_fmax
:
1219 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1220 int param_count
= ir
->actual_parameters
.length();
1221 assert(param_count
== 2 || param_count
== 3);
1224 exec_node
*param
= ir
->actual_parameters
.get_head();
1225 ir_instruction
*inst
= (ir_instruction
*) param
;
1226 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1228 /* data1 parameter (this is always present) */
1229 param
= param
->get_next();
1230 inst
= (ir_instruction
*) param
;
1231 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1233 /* data2 parameter (only with atomic_comp_swap) */
1234 if (param_count
== 3) {
1235 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1236 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1237 param
= param
->get_next();
1238 inst
= (ir_instruction
*) param
;
1240 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1244 assert(ir
->return_deref
);
1245 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1246 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1247 ir
->return_deref
->type
->vector_elements
,
1249 nir_builder_instr_insert(&b
, &instr
->instr
);
1252 case nir_intrinsic_vote_any
:
1253 case nir_intrinsic_vote_all
:
1254 case nir_intrinsic_vote_ieq
: {
1255 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1256 instr
->num_components
= 1;
1258 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1259 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1261 nir_builder_instr_insert(&b
, &instr
->instr
);
1265 case nir_intrinsic_ballot
: {
1266 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1267 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1268 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1270 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1271 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1273 nir_builder_instr_insert(&b
, &instr
->instr
);
1276 case nir_intrinsic_read_invocation
: {
1277 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1278 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1279 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1281 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1282 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1284 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1285 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1287 nir_builder_instr_insert(&b
, &instr
->instr
);
1290 case nir_intrinsic_read_first_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 nir_builder_instr_insert(&b
, &instr
->instr
);
1302 unreachable("not reached");
1305 if (ir
->return_deref
)
1306 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1311 struct hash_entry
*entry
=
1312 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1314 nir_function
*callee
= (nir_function
*) entry
->data
;
1316 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1319 nir_deref_instr
*ret_deref
= NULL
;
1320 if (ir
->return_deref
) {
1321 nir_variable
*ret_tmp
=
1322 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1324 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1325 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1328 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1329 actual_node
, &ir
->actual_parameters
) {
1330 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1331 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1333 if (sig_param
->data
.mode
== ir_var_function_out
) {
1334 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1335 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1336 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1337 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1338 nir_src src
= nir_src_for_ssa(val
);
1340 nir_src_copy(&call
->params
[i
], &src
, call
);
1341 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1342 unreachable("unimplemented: inout parameters");
1348 nir_builder_instr_insert(&b
, &call
->instr
);
1350 if (ir
->return_deref
)
1351 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1355 nir_visitor::visit(ir_assignment
*ir
)
1357 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1359 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1360 ir
->lhs
->variable_referenced()->data
.precise
;
1362 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1363 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1364 if (ir
->condition
) {
1365 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1366 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1367 nir_pop_if(&b
, NULL
);
1369 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1374 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1376 ir
->lhs
->accept(this);
1377 nir_deref_instr
*lhs_deref
= this->deref
;
1378 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1380 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1381 /* GLSL IR will give us the input to the write-masked assignment in a
1382 * single packed vector. So, for example, if the writemask is xzw, then
1383 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1387 unsigned component
= 0;
1388 for (unsigned i
= 0; i
< 4; i
++) {
1389 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1391 src
= nir_swizzle(&b
, src
, swiz
, num_components
, !supports_ints
);
1394 if (ir
->condition
) {
1395 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1396 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1397 nir_pop_if(&b
, NULL
);
1399 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1404 * Given an instruction, returns a pointer to its destination or NULL if there
1405 * is no destination.
1407 * Note that this only handles instructions we generate at this level.
1410 get_instr_dest(nir_instr
*instr
)
1412 nir_alu_instr
*alu_instr
;
1413 nir_intrinsic_instr
*intrinsic_instr
;
1414 nir_tex_instr
*tex_instr
;
1416 switch (instr
->type
) {
1417 case nir_instr_type_alu
:
1418 alu_instr
= nir_instr_as_alu(instr
);
1419 return &alu_instr
->dest
.dest
;
1421 case nir_instr_type_intrinsic
:
1422 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1423 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1424 return &intrinsic_instr
->dest
;
1428 case nir_instr_type_tex
:
1429 tex_instr
= nir_instr_as_tex(instr
);
1430 return &tex_instr
->dest
;
1433 unreachable("not reached");
1440 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1443 nir_dest
*dest
= get_instr_dest(instr
);
1446 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1448 nir_builder_instr_insert(&b
, instr
);
1451 assert(dest
->is_ssa
);
1452 this->result
= &dest
->ssa
;
1457 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1460 if (ir
->as_dereference() || ir
->as_constant()) {
1462 * A dereference is being used on the right hand side, which means we
1463 * must emit a variable load.
1466 this->result
= nir_load_deref(&b
, this->deref
);
1469 return this->result
;
1473 type_is_float(glsl_base_type type
)
1475 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1476 type
== GLSL_TYPE_FLOAT16
;
1480 type_is_signed(glsl_base_type type
)
1482 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1483 type
== GLSL_TYPE_INT16
;
1487 nir_visitor::visit(ir_expression
*ir
)
1489 /* Some special cases */
1490 switch (ir
->operation
) {
1491 case ir_binop_ubo_load
: {
1492 nir_intrinsic_instr
*load
=
1493 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1494 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1495 glsl_get_bit_size(ir
->type
);
1496 load
->num_components
= ir
->type
->vector_elements
;
1497 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1498 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1499 intrinsic_set_std430_align(load
, ir
->type
);
1500 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1503 * In UBO's, a true boolean value is any non-zero value, but we consider
1504 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1507 if (ir
->type
->is_boolean())
1508 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1513 case ir_unop_interpolate_at_centroid
:
1514 case ir_binop_interpolate_at_offset
:
1515 case ir_binop_interpolate_at_sample
: {
1516 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1517 ir_swizzle
*swizzle
= NULL
;
1519 /* the api does not allow a swizzle here, but the varying packing code
1520 * may have pushed one into here.
1522 swizzle
= ir
->operands
[0]->as_swizzle();
1524 deref
= swizzle
->val
->as_dereference();
1528 deref
->accept(this);
1530 nir_intrinsic_op op
;
1531 if (this->deref
->mode
== nir_var_shader_in
) {
1532 switch (ir
->operation
) {
1533 case ir_unop_interpolate_at_centroid
:
1534 op
= nir_intrinsic_interp_deref_at_centroid
;
1536 case ir_binop_interpolate_at_offset
:
1537 op
= nir_intrinsic_interp_deref_at_offset
;
1539 case ir_binop_interpolate_at_sample
:
1540 op
= nir_intrinsic_interp_deref_at_sample
;
1543 unreachable("Invalid interpolation intrinsic");
1546 /* This case can happen if the vertex shader does not write the
1547 * given varying. In this case, the linker will lower it to a
1548 * global variable. Since interpolating a variable makes no
1549 * sense, we'll just turn it into a load which will probably
1550 * eventually end up as an SSA definition.
1552 assert(this->deref
->mode
== nir_var_private
);
1553 op
= nir_intrinsic_load_deref
;
1556 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1557 intrin
->num_components
= deref
->type
->vector_elements
;
1558 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1560 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1561 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1562 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1564 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1565 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1568 unsigned swiz
[4] = {
1569 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1572 result
= nir_swizzle(&b
, result
, swiz
,
1573 swizzle
->type
->vector_elements
, false);
1583 nir_ssa_def
*srcs
[4];
1584 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1585 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1587 glsl_base_type types
[4];
1588 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1590 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1592 types
[i
] = GLSL_TYPE_FLOAT
;
1594 glsl_base_type out_type
;
1596 out_type
= ir
->type
->base_type
;
1598 out_type
= GLSL_TYPE_FLOAT
;
1600 switch (ir
->operation
) {
1601 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1602 case ir_unop_logic_not
:
1603 result
= supports_ints
? nir_inot(&b
, srcs
[0]) : nir_fnot(&b
, srcs
[0]);
1606 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1607 : nir_ineg(&b
, srcs
[0]);
1610 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1611 : nir_iabs(&b
, srcs
[0]);
1613 case ir_unop_saturate
:
1614 assert(type_is_float(types
[0]));
1615 result
= nir_fsat(&b
, srcs
[0]);
1618 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1619 : nir_isign(&b
, srcs
[0]);
1621 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1622 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1623 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1624 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1625 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1626 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1627 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1629 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1632 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1635 result
= supports_ints
? nir_b2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1669 case ir_unop_i642u64
:
1670 case ir_unop_u642i64
: {
1671 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1672 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1673 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1674 nir_rounding_mode_undef
),
1675 srcs
[0], NULL
, NULL
, NULL
);
1676 /* b2i and b2f don't have fixed bit-size versions so the builder will
1677 * just assume 32 and we have to fix it up here.
1679 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1683 case ir_unop_bitcast_i2f
:
1684 case ir_unop_bitcast_f2i
:
1685 case ir_unop_bitcast_u2f
:
1686 case ir_unop_bitcast_f2u
:
1687 case ir_unop_bitcast_i642d
:
1688 case ir_unop_bitcast_d2i64
:
1689 case ir_unop_bitcast_u642d
:
1690 case ir_unop_bitcast_d2u64
:
1691 case ir_unop_subroutine_to_int
:
1693 result
= nir_imov(&b
, srcs
[0]);
1695 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1696 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1697 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1698 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1699 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1700 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1701 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1702 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1703 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1704 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1705 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1706 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1707 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1708 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1709 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1710 case ir_unop_pack_snorm_2x16
:
1711 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1713 case ir_unop_pack_snorm_4x8
:
1714 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1716 case ir_unop_pack_unorm_2x16
:
1717 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1719 case ir_unop_pack_unorm_4x8
:
1720 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1722 case ir_unop_pack_half_2x16
:
1723 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1725 case ir_unop_unpack_snorm_2x16
:
1726 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1728 case ir_unop_unpack_snorm_4x8
:
1729 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1731 case ir_unop_unpack_unorm_2x16
:
1732 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1734 case ir_unop_unpack_unorm_4x8
:
1735 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1737 case ir_unop_unpack_half_2x16
:
1738 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1740 case ir_unop_pack_sampler_2x32
:
1741 case ir_unop_pack_image_2x32
:
1742 case ir_unop_pack_double_2x32
:
1743 case ir_unop_pack_int_2x32
:
1744 case ir_unop_pack_uint_2x32
:
1745 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1747 case ir_unop_unpack_sampler_2x32
:
1748 case ir_unop_unpack_image_2x32
:
1749 case ir_unop_unpack_double_2x32
:
1750 case ir_unop_unpack_int_2x32
:
1751 case ir_unop_unpack_uint_2x32
:
1752 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1754 case ir_unop_bitfield_reverse
:
1755 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1757 case ir_unop_bit_count
:
1758 result
= nir_bit_count(&b
, srcs
[0]);
1760 case ir_unop_find_msb
:
1762 case GLSL_TYPE_UINT
:
1763 result
= nir_ufind_msb(&b
, srcs
[0]);
1766 result
= nir_ifind_msb(&b
, srcs
[0]);
1769 unreachable("Invalid type for findMSB()");
1772 case ir_unop_find_lsb
:
1773 result
= nir_find_lsb(&b
, srcs
[0]);
1777 switch (ir
->type
->vector_elements
) {
1779 switch (ir
->operands
[0]->type
->vector_elements
) {
1780 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1781 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1782 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1783 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1784 default: unreachable("not reached");
1788 switch (ir
->operands
[0]->type
->vector_elements
) {
1789 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1790 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1791 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1792 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1793 default: unreachable("not reached");
1797 switch (ir
->operands
[0]->type
->vector_elements
) {
1798 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1799 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1800 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1801 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1802 default: unreachable("not reached");
1806 switch (ir
->operands
[0]->type
->vector_elements
) {
1807 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1808 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1809 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1810 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1811 default: unreachable("not reached");
1815 unreachable("not reached");
1818 case ir_unop_get_buffer_size
: {
1819 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1821 nir_intrinsic_get_buffer_size
);
1822 load
->num_components
= ir
->type
->vector_elements
;
1823 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1824 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1825 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1830 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1831 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1834 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1835 : nir_isub(&b
, srcs
[0], srcs
[1]);
1838 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1839 : nir_imul(&b
, srcs
[0], srcs
[1]);
1842 if (type_is_float(out_type
))
1843 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1844 else if (type_is_signed(out_type
))
1845 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1847 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1850 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1851 : nir_umod(&b
, srcs
[0], srcs
[1]);
1854 if (type_is_float(out_type
))
1855 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1856 else if (type_is_signed(out_type
))
1857 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1859 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1862 if (type_is_float(out_type
))
1863 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1864 else if (type_is_signed(out_type
))
1865 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1867 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1869 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1870 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1871 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1872 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1873 case ir_binop_logic_and
:
1874 result
= supports_ints
? nir_iand(&b
, srcs
[0], srcs
[1])
1875 : nir_fand(&b
, srcs
[0], srcs
[1]);
1877 case ir_binop_logic_or
:
1878 result
= supports_ints
? nir_ior(&b
, srcs
[0], srcs
[1])
1879 : nir_for(&b
, srcs
[0], srcs
[1]);
1881 case ir_binop_logic_xor
:
1882 result
= supports_ints
? nir_ixor(&b
, srcs
[0], srcs
[1])
1883 : nir_fxor(&b
, srcs
[0], srcs
[1]);
1885 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1886 case ir_binop_rshift
:
1887 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1888 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1890 case ir_binop_imul_high
:
1891 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1892 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1894 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1895 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1897 if (supports_ints
) {
1898 if (type_is_float(types
[0]))
1899 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1900 else if (type_is_signed(types
[0]))
1901 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1903 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1905 result
= nir_slt(&b
, srcs
[0], srcs
[1]);
1908 case ir_binop_gequal
:
1909 if (supports_ints
) {
1910 if (type_is_float(types
[0]))
1911 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1912 else if (type_is_signed(types
[0]))
1913 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1915 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1917 result
= nir_sge(&b
, srcs
[0], srcs
[1]);
1920 case ir_binop_equal
:
1921 if (supports_ints
) {
1922 if (type_is_float(types
[0]))
1923 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1925 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1927 result
= nir_seq(&b
, srcs
[0], srcs
[1]);
1930 case ir_binop_nequal
:
1931 if (supports_ints
) {
1932 if (type_is_float(types
[0]))
1933 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1935 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1937 result
= nir_sne(&b
, srcs
[0], srcs
[1]);
1940 case ir_binop_all_equal
:
1941 if (supports_ints
) {
1942 if (type_is_float(types
[0])) {
1943 switch (ir
->operands
[0]->type
->vector_elements
) {
1944 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1945 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1946 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1947 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1949 unreachable("not reached");
1952 switch (ir
->operands
[0]->type
->vector_elements
) {
1953 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1954 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1955 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1956 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1958 unreachable("not reached");
1962 switch (ir
->operands
[0]->type
->vector_elements
) {
1963 case 1: result
= nir_seq(&b
, srcs
[0], srcs
[1]); break;
1964 case 2: result
= nir_fall_equal2(&b
, srcs
[0], srcs
[1]); break;
1965 case 3: result
= nir_fall_equal3(&b
, srcs
[0], srcs
[1]); break;
1966 case 4: result
= nir_fall_equal4(&b
, srcs
[0], srcs
[1]); break;
1968 unreachable("not reached");
1972 case ir_binop_any_nequal
:
1973 if (supports_ints
) {
1974 if (type_is_float(types
[0])) {
1975 switch (ir
->operands
[0]->type
->vector_elements
) {
1976 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1977 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1978 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1979 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1981 unreachable("not reached");
1984 switch (ir
->operands
[0]->type
->vector_elements
) {
1985 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1986 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1987 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1988 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1990 unreachable("not reached");
1994 switch (ir
->operands
[0]->type
->vector_elements
) {
1995 case 1: result
= nir_sne(&b
, srcs
[0], srcs
[1]); break;
1996 case 2: result
= nir_fany_nequal2(&b
, srcs
[0], srcs
[1]); break;
1997 case 3: result
= nir_fany_nequal3(&b
, srcs
[0], srcs
[1]); break;
1998 case 4: result
= nir_fany_nequal4(&b
, srcs
[0], srcs
[1]); break;
2000 unreachable("not reached");
2005 switch (ir
->operands
[0]->type
->vector_elements
) {
2006 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2007 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2008 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2010 unreachable("not reached");
2013 case ir_binop_vector_extract
: {
2014 result
= nir_channel(&b
, srcs
[0], 0);
2015 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2016 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2017 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2023 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2025 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2028 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2032 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2034 result
= nir_fcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2036 case ir_triop_bitfield_extract
:
2037 result
= (out_type
== GLSL_TYPE_INT
) ?
2038 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2039 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2041 case ir_quadop_bitfield_insert
:
2042 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2044 case ir_quadop_vector
:
2045 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2049 unreachable("not reached");
2054 nir_visitor::visit(ir_swizzle
*ir
)
2056 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2057 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2058 ir
->type
->vector_elements
, !supports_ints
);
2062 nir_visitor::visit(ir_texture
*ir
)
2069 num_srcs
= 1; /* coordinate */
2074 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2075 num_srcs
= 2; /* coordinate, bias/lod */
2079 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2085 if (ir
->lod_info
.lod
!= NULL
)
2086 num_srcs
= 2; /* coordinate, lod */
2088 num_srcs
= 1; /* coordinate */
2092 op
= nir_texop_txf_ms
;
2093 num_srcs
= 2; /* coordinate, sample_index */
2098 if (ir
->lod_info
.lod
!= NULL
)
2099 num_srcs
= 1; /* lod */
2106 num_srcs
= 1; /* coordinate */
2111 num_srcs
= 1; /* coordinate */
2114 case ir_query_levels
:
2115 op
= nir_texop_query_levels
;
2119 case ir_texture_samples
:
2120 op
= nir_texop_texture_samples
;
2124 case ir_samples_identical
:
2125 op
= nir_texop_samples_identical
;
2126 num_srcs
= 1; /* coordinate */
2130 unreachable("not reached");
2133 if (ir
->projector
!= NULL
)
2135 if (ir
->shadow_comparator
!= NULL
)
2137 if (ir
->offset
!= NULL
)
2140 /* Add one for the texture deref */
2143 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2146 instr
->sampler_dim
=
2147 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2148 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2149 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2150 if (instr
->is_shadow
)
2151 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2152 switch (ir
->type
->base_type
) {
2153 case GLSL_TYPE_FLOAT
:
2154 instr
->dest_type
= nir_type_float
;
2157 instr
->dest_type
= nir_type_int
;
2159 case GLSL_TYPE_BOOL
:
2160 case GLSL_TYPE_UINT
:
2161 instr
->dest_type
= nir_type_uint
;
2164 unreachable("not reached");
2167 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2168 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2169 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2170 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2171 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2173 unsigned src_number
= 2;
2175 if (ir
->coordinate
!= NULL
) {
2176 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2177 instr
->src
[src_number
].src
=
2178 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2179 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2183 if (ir
->projector
!= NULL
) {
2184 instr
->src
[src_number
].src
=
2185 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2186 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2190 if (ir
->shadow_comparator
!= NULL
) {
2191 instr
->src
[src_number
].src
=
2192 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2193 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2197 if (ir
->offset
!= NULL
) {
2198 /* we don't support multiple offsets yet */
2199 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2201 instr
->src
[src_number
].src
=
2202 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2203 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2209 instr
->src
[src_number
].src
=
2210 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2211 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2218 if (ir
->lod_info
.lod
!= NULL
) {
2219 instr
->src
[src_number
].src
=
2220 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2221 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2227 instr
->src
[src_number
].src
=
2228 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2229 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2231 instr
->src
[src_number
].src
=
2232 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2233 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2238 instr
->src
[src_number
].src
=
2239 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2240 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2245 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2252 assert(src_number
== num_srcs
);
2254 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2255 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2259 nir_visitor::visit(ir_constant
*ir
)
2262 * We don't know if this variable is an array or struct that gets
2263 * dereferenced, so do the safe thing an make it a variable with a
2264 * constant initializer and return a dereference.
2268 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2269 var
->data
.read_only
= true;
2270 var
->constant_initializer
= constant_copy(ir
, var
);
2272 this->deref
= nir_build_deref_var(&b
, var
);
2276 nir_visitor::visit(ir_dereference_variable
*ir
)
2278 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2279 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2281 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2282 if (param
== ir
->variable_referenced()) {
2288 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2289 nir_var_function
, ir
->type
, 0);
2293 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2295 struct hash_entry
*entry
=
2296 _mesa_hash_table_search(this->var_table
, ir
->var
);
2298 nir_variable
*var
= (nir_variable
*) entry
->data
;
2300 this->deref
= nir_build_deref_var(&b
, var
);
2304 nir_visitor::visit(ir_dereference_record
*ir
)
2306 ir
->record
->accept(this);
2308 int field_index
= ir
->field_idx
;
2309 assert(field_index
>= 0);
2311 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2315 nir_visitor::visit(ir_dereference_array
*ir
)
2317 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2319 ir
->array
->accept(this);
2321 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2325 nir_visitor::visit(ir_barrier
*)
2327 nir_intrinsic_instr
*instr
=
2328 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2329 nir_builder_instr_insert(&b
, &instr
->instr
);