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());
482 func
->num_params
= ir
->parameters
.length() +
483 (ir
->return_type
!= glsl_type::void_type
);
484 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
488 if (ir
->return_type
!= glsl_type::void_type
) {
489 /* The return value is a variable deref (basically an out parameter) */
490 func
->params
[np
].num_components
= 1;
491 func
->params
[np
].bit_size
= 32;
495 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
496 /* FINISHME: pass arrays, structs, etc by reference? */
497 assert(param
->type
->is_vector() || param
->type
->is_scalar());
499 if (param
->data
.mode
== ir_var_function_in
) {
500 func
->params
[np
].num_components
= param
->type
->vector_elements
;
501 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
503 func
->params
[np
].num_components
= 1;
504 func
->params
[np
].bit_size
= 32;
508 assert(np
== func
->num_params
);
510 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
514 nir_visitor::visit(ir_function
*ir
)
516 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
521 nir_visitor::visit(ir_function_signature
*ir
)
523 if (ir
->is_intrinsic())
528 struct hash_entry
*entry
=
529 _mesa_hash_table_search(this->overload_table
, ir
);
532 nir_function
*func
= (nir_function
*) entry
->data
;
534 if (ir
->is_defined
) {
535 nir_function_impl
*impl
= nir_function_impl_create(func
);
538 this->is_global
= false;
540 nir_builder_init(&b
, impl
);
541 b
.cursor
= nir_after_cf_list(&impl
->body
);
543 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
545 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
547 nir_local_variable_create(impl
, param
->type
, param
->name
);
549 if (param
->data
.mode
== ir_var_function_in
) {
550 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
553 _mesa_hash_table_insert(var_table
, param
, var
);
557 visit_exec_list(&ir
->body
, this);
559 this->is_global
= true;
566 nir_visitor::visit(ir_loop
*ir
)
569 visit_exec_list(&ir
->body_instructions
, this);
570 nir_pop_loop(&b
, NULL
);
574 nir_visitor::visit(ir_if
*ir
)
576 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
577 visit_exec_list(&ir
->then_instructions
, this);
578 nir_push_else(&b
, NULL
);
579 visit_exec_list(&ir
->else_instructions
, this);
580 nir_pop_if(&b
, NULL
);
584 nir_visitor::visit(ir_discard
*ir
)
587 * discards aren't treated as control flow, because before we lower them
588 * they can appear anywhere in the shader and the stuff after them may still
589 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
590 * discards will be immediately followed by a return.
593 nir_intrinsic_instr
*discard
;
595 discard
= nir_intrinsic_instr_create(this->shader
,
596 nir_intrinsic_discard_if
);
598 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
600 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
603 nir_builder_instr_insert(&b
, &discard
->instr
);
607 nir_visitor::visit(ir_emit_vertex
*ir
)
609 nir_intrinsic_instr
*instr
=
610 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
611 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
612 nir_builder_instr_insert(&b
, &instr
->instr
);
616 nir_visitor::visit(ir_end_primitive
*ir
)
618 nir_intrinsic_instr
*instr
=
619 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
620 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
621 nir_builder_instr_insert(&b
, &instr
->instr
);
625 nir_visitor::visit(ir_loop_jump
*ir
)
629 case ir_loop_jump::jump_break
:
630 type
= nir_jump_break
;
632 case ir_loop_jump::jump_continue
:
633 type
= nir_jump_continue
;
636 unreachable("not reached");
639 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
640 nir_builder_instr_insert(&b
, &instr
->instr
);
644 nir_visitor::visit(ir_return
*ir
)
646 if (ir
->value
!= NULL
) {
647 nir_deref_instr
*ret_deref
=
648 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
649 nir_var_function
, ir
->value
->type
, 0);
651 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
652 nir_store_deref(&b
, ret_deref
, val
, ~0);
655 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
656 nir_builder_instr_insert(&b
, &instr
->instr
);
660 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
662 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
663 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
664 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
668 nir_visitor::visit(ir_call
*ir
)
670 if (ir
->callee
->is_intrinsic()) {
673 switch (ir
->callee
->intrinsic_id
) {
674 case ir_intrinsic_atomic_counter_read
:
675 op
= nir_intrinsic_atomic_counter_read_deref
;
677 case ir_intrinsic_atomic_counter_increment
:
678 op
= nir_intrinsic_atomic_counter_inc_deref
;
680 case ir_intrinsic_atomic_counter_predecrement
:
681 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
683 case ir_intrinsic_atomic_counter_add
:
684 op
= nir_intrinsic_atomic_counter_add_deref
;
686 case ir_intrinsic_atomic_counter_and
:
687 op
= nir_intrinsic_atomic_counter_and_deref
;
689 case ir_intrinsic_atomic_counter_or
:
690 op
= nir_intrinsic_atomic_counter_or_deref
;
692 case ir_intrinsic_atomic_counter_xor
:
693 op
= nir_intrinsic_atomic_counter_xor_deref
;
695 case ir_intrinsic_atomic_counter_min
:
696 op
= nir_intrinsic_atomic_counter_min_deref
;
698 case ir_intrinsic_atomic_counter_max
:
699 op
= nir_intrinsic_atomic_counter_max_deref
;
701 case ir_intrinsic_atomic_counter_exchange
:
702 op
= nir_intrinsic_atomic_counter_exchange_deref
;
704 case ir_intrinsic_atomic_counter_comp_swap
:
705 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
707 case ir_intrinsic_image_load
:
708 op
= nir_intrinsic_image_deref_load
;
710 case ir_intrinsic_image_store
:
711 op
= nir_intrinsic_image_deref_store
;
713 case ir_intrinsic_image_atomic_add
:
714 op
= ir
->return_deref
->type
->is_integer_32_64()
715 ? nir_intrinsic_image_deref_atomic_add
716 : nir_intrinsic_image_deref_atomic_fadd
;
718 case ir_intrinsic_image_atomic_min
:
719 op
= nir_intrinsic_image_deref_atomic_min
;
721 case ir_intrinsic_image_atomic_max
:
722 op
= nir_intrinsic_image_deref_atomic_max
;
724 case ir_intrinsic_image_atomic_and
:
725 op
= nir_intrinsic_image_deref_atomic_and
;
727 case ir_intrinsic_image_atomic_or
:
728 op
= nir_intrinsic_image_deref_atomic_or
;
730 case ir_intrinsic_image_atomic_xor
:
731 op
= nir_intrinsic_image_deref_atomic_xor
;
733 case ir_intrinsic_image_atomic_exchange
:
734 op
= nir_intrinsic_image_deref_atomic_exchange
;
736 case ir_intrinsic_image_atomic_comp_swap
:
737 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
739 case ir_intrinsic_memory_barrier
:
740 op
= nir_intrinsic_memory_barrier
;
742 case ir_intrinsic_image_size
:
743 op
= nir_intrinsic_image_deref_size
;
745 case ir_intrinsic_image_samples
:
746 op
= nir_intrinsic_image_deref_samples
;
748 case ir_intrinsic_ssbo_store
:
749 op
= nir_intrinsic_store_ssbo
;
751 case ir_intrinsic_ssbo_load
:
752 op
= nir_intrinsic_load_ssbo
;
754 case ir_intrinsic_ssbo_atomic_add
:
755 op
= ir
->return_deref
->type
->is_integer_32_64()
756 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
758 case ir_intrinsic_ssbo_atomic_and
:
759 op
= nir_intrinsic_ssbo_atomic_and
;
761 case ir_intrinsic_ssbo_atomic_or
:
762 op
= nir_intrinsic_ssbo_atomic_or
;
764 case ir_intrinsic_ssbo_atomic_xor
:
765 op
= nir_intrinsic_ssbo_atomic_xor
;
767 case ir_intrinsic_ssbo_atomic_min
:
768 assert(ir
->return_deref
);
769 if (ir
->return_deref
->type
== glsl_type::int_type
)
770 op
= nir_intrinsic_ssbo_atomic_imin
;
771 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
772 op
= nir_intrinsic_ssbo_atomic_umin
;
773 else if (ir
->return_deref
->type
== glsl_type::float_type
)
774 op
= nir_intrinsic_ssbo_atomic_fmin
;
776 unreachable("Invalid type");
778 case ir_intrinsic_ssbo_atomic_max
:
779 assert(ir
->return_deref
);
780 if (ir
->return_deref
->type
== glsl_type::int_type
)
781 op
= nir_intrinsic_ssbo_atomic_imax
;
782 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
783 op
= nir_intrinsic_ssbo_atomic_umax
;
784 else if (ir
->return_deref
->type
== glsl_type::float_type
)
785 op
= nir_intrinsic_ssbo_atomic_fmax
;
787 unreachable("Invalid type");
789 case ir_intrinsic_ssbo_atomic_exchange
:
790 op
= nir_intrinsic_ssbo_atomic_exchange
;
792 case ir_intrinsic_ssbo_atomic_comp_swap
:
793 op
= ir
->return_deref
->type
->is_integer_32_64()
794 ? nir_intrinsic_ssbo_atomic_comp_swap
795 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
797 case ir_intrinsic_shader_clock
:
798 op
= nir_intrinsic_shader_clock
;
800 case ir_intrinsic_begin_invocation_interlock
:
801 op
= nir_intrinsic_begin_invocation_interlock
;
803 case ir_intrinsic_end_invocation_interlock
:
804 op
= nir_intrinsic_end_invocation_interlock
;
806 case ir_intrinsic_group_memory_barrier
:
807 op
= nir_intrinsic_group_memory_barrier
;
809 case ir_intrinsic_memory_barrier_atomic_counter
:
810 op
= nir_intrinsic_memory_barrier_atomic_counter
;
812 case ir_intrinsic_memory_barrier_buffer
:
813 op
= nir_intrinsic_memory_barrier_buffer
;
815 case ir_intrinsic_memory_barrier_image
:
816 op
= nir_intrinsic_memory_barrier_image
;
818 case ir_intrinsic_memory_barrier_shared
:
819 op
= nir_intrinsic_memory_barrier_shared
;
821 case ir_intrinsic_shared_load
:
822 op
= nir_intrinsic_load_shared
;
824 case ir_intrinsic_shared_store
:
825 op
= nir_intrinsic_store_shared
;
827 case ir_intrinsic_shared_atomic_add
:
828 op
= ir
->return_deref
->type
->is_integer_32_64()
829 ? nir_intrinsic_shared_atomic_add
830 : nir_intrinsic_shared_atomic_fadd
;
832 case ir_intrinsic_shared_atomic_and
:
833 op
= nir_intrinsic_shared_atomic_and
;
835 case ir_intrinsic_shared_atomic_or
:
836 op
= nir_intrinsic_shared_atomic_or
;
838 case ir_intrinsic_shared_atomic_xor
:
839 op
= nir_intrinsic_shared_atomic_xor
;
841 case ir_intrinsic_shared_atomic_min
:
842 assert(ir
->return_deref
);
843 if (ir
->return_deref
->type
== glsl_type::int_type
)
844 op
= nir_intrinsic_shared_atomic_imin
;
845 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
846 op
= nir_intrinsic_shared_atomic_umin
;
847 else if (ir
->return_deref
->type
== glsl_type::float_type
)
848 op
= nir_intrinsic_shared_atomic_fmin
;
850 unreachable("Invalid type");
852 case ir_intrinsic_shared_atomic_max
:
853 assert(ir
->return_deref
);
854 if (ir
->return_deref
->type
== glsl_type::int_type
)
855 op
= nir_intrinsic_shared_atomic_imax
;
856 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
857 op
= nir_intrinsic_shared_atomic_umax
;
858 else if (ir
->return_deref
->type
== glsl_type::float_type
)
859 op
= nir_intrinsic_shared_atomic_fmax
;
861 unreachable("Invalid type");
863 case ir_intrinsic_shared_atomic_exchange
:
864 op
= nir_intrinsic_shared_atomic_exchange
;
866 case ir_intrinsic_shared_atomic_comp_swap
:
867 op
= ir
->return_deref
->type
->is_integer_32_64()
868 ? nir_intrinsic_shared_atomic_comp_swap
869 : nir_intrinsic_shared_atomic_fcomp_swap
;
871 case ir_intrinsic_vote_any
:
872 op
= nir_intrinsic_vote_any
;
874 case ir_intrinsic_vote_all
:
875 op
= nir_intrinsic_vote_all
;
877 case ir_intrinsic_vote_eq
:
878 op
= nir_intrinsic_vote_ieq
;
880 case ir_intrinsic_ballot
:
881 op
= nir_intrinsic_ballot
;
883 case ir_intrinsic_read_invocation
:
884 op
= nir_intrinsic_read_invocation
;
886 case ir_intrinsic_read_first_invocation
:
887 op
= nir_intrinsic_read_first_invocation
;
890 unreachable("not reached");
893 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
894 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
897 case nir_intrinsic_atomic_counter_read_deref
:
898 case nir_intrinsic_atomic_counter_inc_deref
:
899 case nir_intrinsic_atomic_counter_pre_dec_deref
:
900 case nir_intrinsic_atomic_counter_add_deref
:
901 case nir_intrinsic_atomic_counter_min_deref
:
902 case nir_intrinsic_atomic_counter_max_deref
:
903 case nir_intrinsic_atomic_counter_and_deref
:
904 case nir_intrinsic_atomic_counter_or_deref
:
905 case nir_intrinsic_atomic_counter_xor_deref
:
906 case nir_intrinsic_atomic_counter_exchange_deref
:
907 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
908 /* Set the counter variable dereference. */
909 exec_node
*param
= ir
->actual_parameters
.get_head();
910 ir_dereference
*counter
= (ir_dereference
*)param
;
912 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
913 param
= param
->get_next();
915 /* Set the intrinsic destination. */
916 if (ir
->return_deref
) {
917 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
920 /* Set the intrinsic parameters. */
921 if (!param
->is_tail_sentinel()) {
923 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
924 param
= param
->get_next();
927 if (!param
->is_tail_sentinel()) {
929 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
930 param
= param
->get_next();
933 nir_builder_instr_insert(&b
, &instr
->instr
);
936 case nir_intrinsic_image_deref_load
:
937 case nir_intrinsic_image_deref_store
:
938 case nir_intrinsic_image_deref_atomic_add
:
939 case nir_intrinsic_image_deref_atomic_min
:
940 case nir_intrinsic_image_deref_atomic_max
:
941 case nir_intrinsic_image_deref_atomic_and
:
942 case nir_intrinsic_image_deref_atomic_or
:
943 case nir_intrinsic_image_deref_atomic_xor
:
944 case nir_intrinsic_image_deref_atomic_exchange
:
945 case nir_intrinsic_image_deref_atomic_comp_swap
:
946 case nir_intrinsic_image_deref_atomic_fadd
:
947 case nir_intrinsic_image_deref_samples
:
948 case nir_intrinsic_image_deref_size
: {
949 nir_ssa_undef_instr
*instr_undef
=
950 nir_ssa_undef_instr_create(shader
, 1, 32);
951 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
953 /* Set the image variable dereference. */
954 exec_node
*param
= ir
->actual_parameters
.get_head();
955 ir_dereference
*image
= (ir_dereference
*)param
;
956 const glsl_type
*type
=
957 image
->variable_referenced()->type
->without_array();
959 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
960 param
= param
->get_next();
962 /* Set the intrinsic destination. */
963 if (ir
->return_deref
) {
964 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
965 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
966 num_components
, 32, NULL
);
969 if (op
== nir_intrinsic_image_deref_size
) {
970 instr
->num_components
= instr
->dest
.ssa
.num_components
;
971 } else if (op
== nir_intrinsic_image_deref_load
||
972 op
== nir_intrinsic_image_deref_store
) {
973 instr
->num_components
= 4;
976 if (op
== nir_intrinsic_image_deref_size
||
977 op
== nir_intrinsic_image_deref_samples
) {
978 nir_builder_instr_insert(&b
, &instr
->instr
);
982 /* Set the address argument, extending the coordinate vector to four
985 nir_ssa_def
*src_addr
=
986 evaluate_rvalue((ir_dereference
*)param
);
987 nir_ssa_def
*srcs
[4];
989 for (int i
= 0; i
< 4; i
++) {
990 if (i
< type
->coordinate_components())
991 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
993 srcs
[i
] = &instr_undef
->def
;
996 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
997 param
= param
->get_next();
999 /* Set the sample argument, which is undefined for single-sample
1002 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1004 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1005 param
= param
->get_next();
1007 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1010 /* Set the intrinsic parameters. */
1011 if (!param
->is_tail_sentinel()) {
1013 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1014 param
= param
->get_next();
1017 if (!param
->is_tail_sentinel()) {
1019 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1020 param
= param
->get_next();
1022 nir_builder_instr_insert(&b
, &instr
->instr
);
1025 case nir_intrinsic_memory_barrier
:
1026 case nir_intrinsic_group_memory_barrier
:
1027 case nir_intrinsic_memory_barrier_atomic_counter
:
1028 case nir_intrinsic_memory_barrier_buffer
:
1029 case nir_intrinsic_memory_barrier_image
:
1030 case nir_intrinsic_memory_barrier_shared
:
1031 nir_builder_instr_insert(&b
, &instr
->instr
);
1033 case nir_intrinsic_shader_clock
:
1034 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1035 instr
->num_components
= 2;
1036 nir_builder_instr_insert(&b
, &instr
->instr
);
1038 case nir_intrinsic_begin_invocation_interlock
:
1039 nir_builder_instr_insert(&b
, &instr
->instr
);
1041 case nir_intrinsic_end_invocation_interlock
:
1042 nir_builder_instr_insert(&b
, &instr
->instr
);
1044 case nir_intrinsic_store_ssbo
: {
1045 exec_node
*param
= ir
->actual_parameters
.get_head();
1046 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1048 param
= param
->get_next();
1049 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1051 param
= param
->get_next();
1052 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1054 param
= param
->get_next();
1055 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1058 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1059 if (val
->type
->is_boolean())
1060 nir_val
= nir_b2i32(&b
, nir_val
);
1062 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1063 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1064 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1065 intrinsic_set_std430_align(instr
, val
->type
);
1066 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1067 instr
->num_components
= val
->type
->vector_elements
;
1069 nir_builder_instr_insert(&b
, &instr
->instr
);
1072 case nir_intrinsic_load_ssbo
: {
1073 exec_node
*param
= ir
->actual_parameters
.get_head();
1074 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1076 param
= param
->get_next();
1077 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1079 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1080 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1082 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1083 instr
->num_components
= type
->vector_elements
;
1084 intrinsic_set_std430_align(instr
, type
);
1086 /* Setup destination register */
1087 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1088 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1089 type
->vector_elements
, bit_size
, NULL
);
1091 /* Insert the created nir instruction now since in the case of boolean
1092 * result we will need to emit another instruction after it
1094 nir_builder_instr_insert(&b
, &instr
->instr
);
1097 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1098 * consider a true boolean to be ~0. Fix this up with a != 0
1101 if (type
->is_boolean())
1102 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1105 case nir_intrinsic_ssbo_atomic_add
:
1106 case nir_intrinsic_ssbo_atomic_imin
:
1107 case nir_intrinsic_ssbo_atomic_umin
:
1108 case nir_intrinsic_ssbo_atomic_imax
:
1109 case nir_intrinsic_ssbo_atomic_umax
:
1110 case nir_intrinsic_ssbo_atomic_and
:
1111 case nir_intrinsic_ssbo_atomic_or
:
1112 case nir_intrinsic_ssbo_atomic_xor
:
1113 case nir_intrinsic_ssbo_atomic_exchange
:
1114 case nir_intrinsic_ssbo_atomic_comp_swap
:
1115 case nir_intrinsic_ssbo_atomic_fadd
:
1116 case nir_intrinsic_ssbo_atomic_fmin
:
1117 case nir_intrinsic_ssbo_atomic_fmax
:
1118 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1119 int param_count
= ir
->actual_parameters
.length();
1120 assert(param_count
== 3 || param_count
== 4);
1123 exec_node
*param
= ir
->actual_parameters
.get_head();
1124 ir_instruction
*inst
= (ir_instruction
*) param
;
1125 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1128 param
= param
->get_next();
1129 inst
= (ir_instruction
*) param
;
1130 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1132 /* data1 parameter (this is always present) */
1133 param
= param
->get_next();
1134 inst
= (ir_instruction
*) param
;
1135 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1137 /* data2 parameter (only with atomic_comp_swap) */
1138 if (param_count
== 4) {
1139 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1140 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1141 param
= param
->get_next();
1142 inst
= (ir_instruction
*) param
;
1143 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1147 assert(ir
->return_deref
);
1148 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1149 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1150 nir_builder_instr_insert(&b
, &instr
->instr
);
1153 case nir_intrinsic_load_shared
: {
1154 exec_node
*param
= ir
->actual_parameters
.get_head();
1155 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1157 nir_intrinsic_set_base(instr
, 0);
1158 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1160 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1161 instr
->num_components
= type
->vector_elements
;
1162 intrinsic_set_std430_align(instr
, type
);
1164 /* Setup destination register */
1165 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1166 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1167 type
->vector_elements
, bit_size
, NULL
);
1169 nir_builder_instr_insert(&b
, &instr
->instr
);
1171 /* The value in shared memory is a 32-bit value */
1172 if (type
->is_boolean())
1173 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1176 case nir_intrinsic_store_shared
: {
1177 exec_node
*param
= ir
->actual_parameters
.get_head();
1178 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1180 param
= param
->get_next();
1181 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1183 param
= param
->get_next();
1184 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1187 nir_intrinsic_set_base(instr
, 0);
1188 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1190 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1192 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1193 /* The value in shared memory is a 32-bit value */
1194 if (val
->type
->is_boolean())
1195 nir_val
= nir_b2i32(&b
, nir_val
);
1197 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1198 instr
->num_components
= val
->type
->vector_elements
;
1199 intrinsic_set_std430_align(instr
, val
->type
);
1201 nir_builder_instr_insert(&b
, &instr
->instr
);
1204 case nir_intrinsic_shared_atomic_add
:
1205 case nir_intrinsic_shared_atomic_imin
:
1206 case nir_intrinsic_shared_atomic_umin
:
1207 case nir_intrinsic_shared_atomic_imax
:
1208 case nir_intrinsic_shared_atomic_umax
:
1209 case nir_intrinsic_shared_atomic_and
:
1210 case nir_intrinsic_shared_atomic_or
:
1211 case nir_intrinsic_shared_atomic_xor
:
1212 case nir_intrinsic_shared_atomic_exchange
:
1213 case nir_intrinsic_shared_atomic_comp_swap
:
1214 case nir_intrinsic_shared_atomic_fadd
:
1215 case nir_intrinsic_shared_atomic_fmin
:
1216 case nir_intrinsic_shared_atomic_fmax
:
1217 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1218 int param_count
= ir
->actual_parameters
.length();
1219 assert(param_count
== 2 || param_count
== 3);
1222 exec_node
*param
= ir
->actual_parameters
.get_head();
1223 ir_instruction
*inst
= (ir_instruction
*) param
;
1224 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1226 /* data1 parameter (this is always present) */
1227 param
= param
->get_next();
1228 inst
= (ir_instruction
*) param
;
1229 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1231 /* data2 parameter (only with atomic_comp_swap) */
1232 if (param_count
== 3) {
1233 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1234 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1235 param
= param
->get_next();
1236 inst
= (ir_instruction
*) param
;
1238 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1242 assert(ir
->return_deref
);
1243 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1244 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1245 ir
->return_deref
->type
->vector_elements
,
1247 nir_builder_instr_insert(&b
, &instr
->instr
);
1250 case nir_intrinsic_vote_any
:
1251 case nir_intrinsic_vote_all
:
1252 case nir_intrinsic_vote_ieq
: {
1253 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1254 instr
->num_components
= 1;
1256 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1257 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1259 nir_builder_instr_insert(&b
, &instr
->instr
);
1263 case nir_intrinsic_ballot
: {
1264 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1265 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1266 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1268 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1269 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1271 nir_builder_instr_insert(&b
, &instr
->instr
);
1274 case nir_intrinsic_read_invocation
: {
1275 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1276 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1277 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1279 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1280 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1282 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1283 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1285 nir_builder_instr_insert(&b
, &instr
->instr
);
1288 case nir_intrinsic_read_first_invocation
: {
1289 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1290 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1291 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1293 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1294 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1296 nir_builder_instr_insert(&b
, &instr
->instr
);
1300 unreachable("not reached");
1303 if (ir
->return_deref
)
1304 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1309 struct hash_entry
*entry
=
1310 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1312 nir_function
*callee
= (nir_function
*) entry
->data
;
1314 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1317 nir_deref_instr
*ret_deref
= NULL
;
1318 if (ir
->return_deref
) {
1319 nir_variable
*ret_tmp
=
1320 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1322 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1323 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1326 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1327 actual_node
, &ir
->actual_parameters
) {
1328 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1329 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1331 if (sig_param
->data
.mode
== ir_var_function_out
) {
1332 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1333 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1334 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1335 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1336 nir_src src
= nir_src_for_ssa(val
);
1338 nir_src_copy(&call
->params
[i
], &src
, call
);
1339 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1340 unreachable("unimplemented: inout parameters");
1346 nir_builder_instr_insert(&b
, &call
->instr
);
1348 if (ir
->return_deref
)
1349 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1353 nir_visitor::visit(ir_assignment
*ir
)
1355 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1357 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1358 ir
->lhs
->variable_referenced()->data
.precise
;
1360 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1361 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1362 if (ir
->condition
) {
1363 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1364 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1365 nir_pop_if(&b
, NULL
);
1367 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1372 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1374 ir
->lhs
->accept(this);
1375 nir_deref_instr
*lhs_deref
= this->deref
;
1376 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1378 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1379 /* GLSL IR will give us the input to the write-masked assignment in a
1380 * single packed vector. So, for example, if the writemask is xzw, then
1381 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1385 unsigned component
= 0;
1386 for (unsigned i
= 0; i
< 4; i
++) {
1387 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1389 src
= nir_swizzle(&b
, src
, swiz
, num_components
, !supports_ints
);
1392 if (ir
->condition
) {
1393 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1394 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1395 nir_pop_if(&b
, NULL
);
1397 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1402 * Given an instruction, returns a pointer to its destination or NULL if there
1403 * is no destination.
1405 * Note that this only handles instructions we generate at this level.
1408 get_instr_dest(nir_instr
*instr
)
1410 nir_alu_instr
*alu_instr
;
1411 nir_intrinsic_instr
*intrinsic_instr
;
1412 nir_tex_instr
*tex_instr
;
1414 switch (instr
->type
) {
1415 case nir_instr_type_alu
:
1416 alu_instr
= nir_instr_as_alu(instr
);
1417 return &alu_instr
->dest
.dest
;
1419 case nir_instr_type_intrinsic
:
1420 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1421 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1422 return &intrinsic_instr
->dest
;
1426 case nir_instr_type_tex
:
1427 tex_instr
= nir_instr_as_tex(instr
);
1428 return &tex_instr
->dest
;
1431 unreachable("not reached");
1438 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1441 nir_dest
*dest
= get_instr_dest(instr
);
1444 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1446 nir_builder_instr_insert(&b
, instr
);
1449 assert(dest
->is_ssa
);
1450 this->result
= &dest
->ssa
;
1455 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1458 if (ir
->as_dereference() || ir
->as_constant()) {
1460 * A dereference is being used on the right hand side, which means we
1461 * must emit a variable load.
1464 this->result
= nir_load_deref(&b
, this->deref
);
1467 return this->result
;
1471 type_is_float(glsl_base_type type
)
1473 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1474 type
== GLSL_TYPE_FLOAT16
;
1478 type_is_signed(glsl_base_type type
)
1480 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1481 type
== GLSL_TYPE_INT16
;
1485 nir_visitor::visit(ir_expression
*ir
)
1487 /* Some special cases */
1488 switch (ir
->operation
) {
1489 case ir_binop_ubo_load
: {
1490 nir_intrinsic_instr
*load
=
1491 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1492 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1493 glsl_get_bit_size(ir
->type
);
1494 load
->num_components
= ir
->type
->vector_elements
;
1495 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1496 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1497 intrinsic_set_std430_align(load
, ir
->type
);
1498 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1501 * In UBO's, a true boolean value is any non-zero value, but we consider
1502 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1505 if (ir
->type
->is_boolean())
1506 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1511 case ir_unop_interpolate_at_centroid
:
1512 case ir_binop_interpolate_at_offset
:
1513 case ir_binop_interpolate_at_sample
: {
1514 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1515 ir_swizzle
*swizzle
= NULL
;
1517 /* the api does not allow a swizzle here, but the varying packing code
1518 * may have pushed one into here.
1520 swizzle
= ir
->operands
[0]->as_swizzle();
1522 deref
= swizzle
->val
->as_dereference();
1526 deref
->accept(this);
1528 nir_intrinsic_op op
;
1529 if (this->deref
->mode
== nir_var_shader_in
) {
1530 switch (ir
->operation
) {
1531 case ir_unop_interpolate_at_centroid
:
1532 op
= nir_intrinsic_interp_deref_at_centroid
;
1534 case ir_binop_interpolate_at_offset
:
1535 op
= nir_intrinsic_interp_deref_at_offset
;
1537 case ir_binop_interpolate_at_sample
:
1538 op
= nir_intrinsic_interp_deref_at_sample
;
1541 unreachable("Invalid interpolation intrinsic");
1544 /* This case can happen if the vertex shader does not write the
1545 * given varying. In this case, the linker will lower it to a
1546 * global variable. Since interpolating a variable makes no
1547 * sense, we'll just turn it into a load which will probably
1548 * eventually end up as an SSA definition.
1550 assert(this->deref
->mode
== nir_var_private
);
1551 op
= nir_intrinsic_load_deref
;
1554 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1555 intrin
->num_components
= deref
->type
->vector_elements
;
1556 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1558 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1559 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1560 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1562 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1563 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1566 unsigned swiz
[4] = {
1567 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1570 result
= nir_swizzle(&b
, result
, swiz
,
1571 swizzle
->type
->vector_elements
, false);
1581 nir_ssa_def
*srcs
[4];
1582 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1583 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1585 glsl_base_type types
[4];
1586 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1588 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1590 types
[i
] = GLSL_TYPE_FLOAT
;
1592 glsl_base_type out_type
;
1594 out_type
= ir
->type
->base_type
;
1596 out_type
= GLSL_TYPE_FLOAT
;
1598 switch (ir
->operation
) {
1599 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1600 case ir_unop_logic_not
:
1601 result
= supports_ints
? nir_inot(&b
, srcs
[0]) : nir_fnot(&b
, srcs
[0]);
1604 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1605 : nir_ineg(&b
, srcs
[0]);
1608 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1609 : nir_iabs(&b
, srcs
[0]);
1611 case ir_unop_saturate
:
1612 assert(type_is_float(types
[0]));
1613 result
= nir_fsat(&b
, srcs
[0]);
1616 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1617 : nir_isign(&b
, srcs
[0]);
1619 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1620 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1621 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1622 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1623 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1624 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1625 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1627 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1630 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1633 result
= supports_ints
? nir_b2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1667 case ir_unop_i642u64
:
1668 case ir_unop_u642i64
: {
1669 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1670 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1671 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1672 nir_rounding_mode_undef
),
1673 srcs
[0], NULL
, NULL
, NULL
);
1674 /* b2i and b2f don't have fixed bit-size versions so the builder will
1675 * just assume 32 and we have to fix it up here.
1677 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1681 case ir_unop_bitcast_i2f
:
1682 case ir_unop_bitcast_f2i
:
1683 case ir_unop_bitcast_u2f
:
1684 case ir_unop_bitcast_f2u
:
1685 case ir_unop_bitcast_i642d
:
1686 case ir_unop_bitcast_d2i64
:
1687 case ir_unop_bitcast_u642d
:
1688 case ir_unop_bitcast_d2u64
:
1689 case ir_unop_subroutine_to_int
:
1691 result
= nir_imov(&b
, srcs
[0]);
1693 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1694 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1695 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1696 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1697 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1698 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1699 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1700 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1701 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1702 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1703 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1704 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1705 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1706 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1707 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1708 case ir_unop_pack_snorm_2x16
:
1709 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1711 case ir_unop_pack_snorm_4x8
:
1712 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1714 case ir_unop_pack_unorm_2x16
:
1715 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1717 case ir_unop_pack_unorm_4x8
:
1718 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1720 case ir_unop_pack_half_2x16
:
1721 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1723 case ir_unop_unpack_snorm_2x16
:
1724 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1726 case ir_unop_unpack_snorm_4x8
:
1727 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1729 case ir_unop_unpack_unorm_2x16
:
1730 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1732 case ir_unop_unpack_unorm_4x8
:
1733 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1735 case ir_unop_unpack_half_2x16
:
1736 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1738 case ir_unop_pack_sampler_2x32
:
1739 case ir_unop_pack_image_2x32
:
1740 case ir_unop_pack_double_2x32
:
1741 case ir_unop_pack_int_2x32
:
1742 case ir_unop_pack_uint_2x32
:
1743 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1745 case ir_unop_unpack_sampler_2x32
:
1746 case ir_unop_unpack_image_2x32
:
1747 case ir_unop_unpack_double_2x32
:
1748 case ir_unop_unpack_int_2x32
:
1749 case ir_unop_unpack_uint_2x32
:
1750 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1752 case ir_unop_bitfield_reverse
:
1753 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1755 case ir_unop_bit_count
:
1756 result
= nir_bit_count(&b
, srcs
[0]);
1758 case ir_unop_find_msb
:
1760 case GLSL_TYPE_UINT
:
1761 result
= nir_ufind_msb(&b
, srcs
[0]);
1764 result
= nir_ifind_msb(&b
, srcs
[0]);
1767 unreachable("Invalid type for findMSB()");
1770 case ir_unop_find_lsb
:
1771 result
= nir_find_lsb(&b
, srcs
[0]);
1775 switch (ir
->type
->vector_elements
) {
1777 switch (ir
->operands
[0]->type
->vector_elements
) {
1778 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1779 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1780 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1781 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1782 default: unreachable("not reached");
1786 switch (ir
->operands
[0]->type
->vector_elements
) {
1787 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1788 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1789 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1790 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1791 default: unreachable("not reached");
1795 switch (ir
->operands
[0]->type
->vector_elements
) {
1796 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1797 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1798 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1799 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1800 default: unreachable("not reached");
1804 switch (ir
->operands
[0]->type
->vector_elements
) {
1805 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1806 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1807 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1808 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1809 default: unreachable("not reached");
1813 unreachable("not reached");
1816 case ir_unop_get_buffer_size
: {
1817 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1819 nir_intrinsic_get_buffer_size
);
1820 load
->num_components
= ir
->type
->vector_elements
;
1821 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1822 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1823 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1828 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1829 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1832 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1833 : nir_isub(&b
, srcs
[0], srcs
[1]);
1836 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1837 : nir_imul(&b
, srcs
[0], srcs
[1]);
1840 if (type_is_float(out_type
))
1841 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1842 else if (type_is_signed(out_type
))
1843 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1845 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1848 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1849 : nir_umod(&b
, srcs
[0], srcs
[1]);
1852 if (type_is_float(out_type
))
1853 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1854 else if (type_is_signed(out_type
))
1855 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1857 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1860 if (type_is_float(out_type
))
1861 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1862 else if (type_is_signed(out_type
))
1863 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1865 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1867 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1868 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1869 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1870 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1871 case ir_binop_logic_and
:
1872 result
= supports_ints
? nir_iand(&b
, srcs
[0], srcs
[1])
1873 : nir_fand(&b
, srcs
[0], srcs
[1]);
1875 case ir_binop_logic_or
:
1876 result
= supports_ints
? nir_ior(&b
, srcs
[0], srcs
[1])
1877 : nir_for(&b
, srcs
[0], srcs
[1]);
1879 case ir_binop_logic_xor
:
1880 result
= supports_ints
? nir_ixor(&b
, srcs
[0], srcs
[1])
1881 : nir_fxor(&b
, srcs
[0], srcs
[1]);
1883 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1884 case ir_binop_rshift
:
1885 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1886 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1888 case ir_binop_imul_high
:
1889 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1890 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1892 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1893 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1895 if (supports_ints
) {
1896 if (type_is_float(types
[0]))
1897 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1898 else if (type_is_signed(types
[0]))
1899 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1901 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1903 result
= nir_slt(&b
, srcs
[0], srcs
[1]);
1906 case ir_binop_gequal
:
1907 if (supports_ints
) {
1908 if (type_is_float(types
[0]))
1909 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1910 else if (type_is_signed(types
[0]))
1911 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1913 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1915 result
= nir_sge(&b
, srcs
[0], srcs
[1]);
1918 case ir_binop_equal
:
1919 if (supports_ints
) {
1920 if (type_is_float(types
[0]))
1921 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1923 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1925 result
= nir_seq(&b
, srcs
[0], srcs
[1]);
1928 case ir_binop_nequal
:
1929 if (supports_ints
) {
1930 if (type_is_float(types
[0]))
1931 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1933 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1935 result
= nir_sne(&b
, srcs
[0], srcs
[1]);
1938 case ir_binop_all_equal
:
1939 if (supports_ints
) {
1940 if (type_is_float(types
[0])) {
1941 switch (ir
->operands
[0]->type
->vector_elements
) {
1942 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1943 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1944 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1945 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1947 unreachable("not reached");
1950 switch (ir
->operands
[0]->type
->vector_elements
) {
1951 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1952 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1953 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1954 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1956 unreachable("not reached");
1960 switch (ir
->operands
[0]->type
->vector_elements
) {
1961 case 1: result
= nir_seq(&b
, srcs
[0], srcs
[1]); break;
1962 case 2: result
= nir_fall_equal2(&b
, srcs
[0], srcs
[1]); break;
1963 case 3: result
= nir_fall_equal3(&b
, srcs
[0], srcs
[1]); break;
1964 case 4: result
= nir_fall_equal4(&b
, srcs
[0], srcs
[1]); break;
1966 unreachable("not reached");
1970 case ir_binop_any_nequal
:
1971 if (supports_ints
) {
1972 if (type_is_float(types
[0])) {
1973 switch (ir
->operands
[0]->type
->vector_elements
) {
1974 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1975 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1976 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1977 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1979 unreachable("not reached");
1982 switch (ir
->operands
[0]->type
->vector_elements
) {
1983 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1984 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1985 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1986 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1988 unreachable("not reached");
1992 switch (ir
->operands
[0]->type
->vector_elements
) {
1993 case 1: result
= nir_sne(&b
, srcs
[0], srcs
[1]); break;
1994 case 2: result
= nir_fany_nequal2(&b
, srcs
[0], srcs
[1]); break;
1995 case 3: result
= nir_fany_nequal3(&b
, srcs
[0], srcs
[1]); break;
1996 case 4: result
= nir_fany_nequal4(&b
, srcs
[0], srcs
[1]); break;
1998 unreachable("not reached");
2003 switch (ir
->operands
[0]->type
->vector_elements
) {
2004 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2005 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2006 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2008 unreachable("not reached");
2011 case ir_binop_vector_extract
: {
2012 result
= nir_channel(&b
, srcs
[0], 0);
2013 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2014 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2015 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2021 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2023 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2026 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2030 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2032 result
= nir_fcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2034 case ir_triop_bitfield_extract
:
2035 result
= (out_type
== GLSL_TYPE_INT
) ?
2036 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2037 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2039 case ir_quadop_bitfield_insert
:
2040 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2042 case ir_quadop_vector
:
2043 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2047 unreachable("not reached");
2052 nir_visitor::visit(ir_swizzle
*ir
)
2054 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2055 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2056 ir
->type
->vector_elements
, !supports_ints
);
2060 nir_visitor::visit(ir_texture
*ir
)
2067 num_srcs
= 1; /* coordinate */
2072 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2073 num_srcs
= 2; /* coordinate, bias/lod */
2077 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2083 if (ir
->lod_info
.lod
!= NULL
)
2084 num_srcs
= 2; /* coordinate, lod */
2086 num_srcs
= 1; /* coordinate */
2090 op
= nir_texop_txf_ms
;
2091 num_srcs
= 2; /* coordinate, sample_index */
2096 if (ir
->lod_info
.lod
!= NULL
)
2097 num_srcs
= 1; /* lod */
2104 num_srcs
= 1; /* coordinate */
2109 num_srcs
= 1; /* coordinate */
2112 case ir_query_levels
:
2113 op
= nir_texop_query_levels
;
2117 case ir_texture_samples
:
2118 op
= nir_texop_texture_samples
;
2122 case ir_samples_identical
:
2123 op
= nir_texop_samples_identical
;
2124 num_srcs
= 1; /* coordinate */
2128 unreachable("not reached");
2131 if (ir
->projector
!= NULL
)
2133 if (ir
->shadow_comparator
!= NULL
)
2135 if (ir
->offset
!= NULL
)
2138 /* Add one for the texture deref */
2141 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2144 instr
->sampler_dim
=
2145 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2146 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2147 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2148 if (instr
->is_shadow
)
2149 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2150 switch (ir
->type
->base_type
) {
2151 case GLSL_TYPE_FLOAT
:
2152 instr
->dest_type
= nir_type_float
;
2155 instr
->dest_type
= nir_type_int
;
2157 case GLSL_TYPE_BOOL
:
2158 case GLSL_TYPE_UINT
:
2159 instr
->dest_type
= nir_type_uint
;
2162 unreachable("not reached");
2165 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2166 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2167 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2168 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2169 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2171 unsigned src_number
= 2;
2173 if (ir
->coordinate
!= NULL
) {
2174 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2175 instr
->src
[src_number
].src
=
2176 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2177 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2181 if (ir
->projector
!= NULL
) {
2182 instr
->src
[src_number
].src
=
2183 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2184 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2188 if (ir
->shadow_comparator
!= NULL
) {
2189 instr
->src
[src_number
].src
=
2190 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2191 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2195 if (ir
->offset
!= NULL
) {
2196 /* we don't support multiple offsets yet */
2197 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2199 instr
->src
[src_number
].src
=
2200 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2201 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2207 instr
->src
[src_number
].src
=
2208 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2209 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2216 if (ir
->lod_info
.lod
!= NULL
) {
2217 instr
->src
[src_number
].src
=
2218 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2219 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2225 instr
->src
[src_number
].src
=
2226 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2227 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2229 instr
->src
[src_number
].src
=
2230 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2231 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2236 instr
->src
[src_number
].src
=
2237 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2238 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2243 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2250 assert(src_number
== num_srcs
);
2252 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2253 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2257 nir_visitor::visit(ir_constant
*ir
)
2260 * We don't know if this variable is an array or struct that gets
2261 * dereferenced, so do the safe thing an make it a variable with a
2262 * constant initializer and return a dereference.
2266 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2267 var
->data
.read_only
= true;
2268 var
->constant_initializer
= constant_copy(ir
, var
);
2270 this->deref
= nir_build_deref_var(&b
, var
);
2274 nir_visitor::visit(ir_dereference_variable
*ir
)
2276 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2277 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2279 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2280 if (param
== ir
->variable_referenced()) {
2286 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2287 nir_var_function
, ir
->type
, 0);
2291 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2293 struct hash_entry
*entry
=
2294 _mesa_hash_table_search(this->var_table
, ir
->var
);
2296 nir_variable
*var
= (nir_variable
*) entry
->data
;
2298 this->deref
= nir_build_deref_var(&b
, var
);
2302 nir_visitor::visit(ir_dereference_record
*ir
)
2304 ir
->record
->accept(this);
2306 int field_index
= ir
->field_idx
;
2307 assert(field_index
>= 0);
2309 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2313 nir_visitor::visit(ir_dereference_array
*ir
)
2315 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2317 ir
->array
->accept(this);
2319 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2323 nir_visitor::visit(ir_barrier
*)
2325 nir_intrinsic_instr
*instr
=
2326 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2327 nir_builder_instr_insert(&b
, &instr
->instr
);