2 * Copyright © 2014 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Connor Abbott (cwabbott0@gmail.com)
28 #include "glsl_to_nir.h"
29 #include "ir_visitor.h"
30 #include "ir_hierarchical_visitor.h"
32 #include "compiler/nir/nir_control_flow.h"
33 #include "compiler/nir/nir_builder.h"
34 #include "main/imports.h"
35 #include "main/mtypes.h"
36 #include "util/u_math.h"
39 * pass to lower GLSL IR to NIR
41 * This will lower variable dereferences to loads/stores of corresponding
42 * variables in NIR - the variables will be converted to registers in a later
48 class nir_visitor
: public ir_visitor
51 nir_visitor(nir_shader
*shader
);
54 virtual void visit(ir_variable
*);
55 virtual void visit(ir_function
*);
56 virtual void visit(ir_function_signature
*);
57 virtual void visit(ir_loop
*);
58 virtual void visit(ir_if
*);
59 virtual void visit(ir_discard
*);
60 virtual void visit(ir_loop_jump
*);
61 virtual void visit(ir_return
*);
62 virtual void visit(ir_call
*);
63 virtual void visit(ir_assignment
*);
64 virtual void visit(ir_emit_vertex
*);
65 virtual void visit(ir_end_primitive
*);
66 virtual void visit(ir_expression
*);
67 virtual void visit(ir_swizzle
*);
68 virtual void visit(ir_texture
*);
69 virtual void visit(ir_constant
*);
70 virtual void visit(ir_dereference_variable
*);
71 virtual void visit(ir_dereference_record
*);
72 virtual void visit(ir_dereference_array
*);
73 virtual void visit(ir_barrier
*);
75 void create_function(ir_function_signature
*ir
);
78 void add_instr(nir_instr
*instr
, unsigned num_components
, unsigned bit_size
);
79 nir_ssa_def
*evaluate_rvalue(ir_rvalue
*ir
);
81 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
**srcs
);
82 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
);
83 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
85 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
86 nir_ssa_def
*src2
, nir_ssa_def
*src3
);
91 nir_function_impl
*impl
;
93 nir_ssa_def
*result
; /* result of the expression tree last visited */
95 nir_deref_instr
*evaluate_deref(ir_instruction
*ir
);
97 nir_constant
*constant_copy(ir_constant
*ir
, void *mem_ctx
);
99 /* most recent deref instruction created */
100 nir_deref_instr
*deref
;
102 /* whether the IR we're operating on is per-function or global */
105 ir_function_signature
*sig
;
107 /* map of ir_variable -> nir_variable */
108 struct hash_table
*var_table
;
110 /* map of ir_function_signature -> nir_function_overload */
111 struct hash_table
*overload_table
;
115 * This visitor runs before the main visitor, calling create_function() for
116 * each function so that the main visitor can resolve forward references in
120 class nir_function_visitor
: public ir_hierarchical_visitor
123 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
126 virtual ir_visitor_status
visit_enter(ir_function
*);
129 nir_visitor
*visitor
;
132 } /* end of anonymous namespace */
135 glsl_to_nir(const struct gl_shader_program
*shader_prog
,
136 gl_shader_stage stage
,
137 const nir_shader_compiler_options
*options
)
139 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
141 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
144 nir_visitor
v1(shader
);
145 nir_function_visitor
v2(&v1
);
147 visit_exec_list(sh
->ir
, &v1
);
149 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
151 /* Remap the locations to slots so those requiring two slots will occupy
152 * two locations. For instance, if we have in the IR code a dvec3 attr0 in
153 * location 0 and vec4 attr1 in location 1, in NIR attr0 will use
154 * locations/slots 0 and 1, and attr1 will use location/slot 2 */
155 if (shader
->info
.stage
== MESA_SHADER_VERTEX
)
156 nir_remap_dual_slot_attributes(shader
, &sh
->Program
->DualSlotInputs
);
158 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
159 if (shader_prog
->Label
)
160 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
162 /* Check for transform feedback varyings specified via the API */
163 shader
->info
.has_transform_feedback_varyings
=
164 shader_prog
->TransformFeedback
.NumVarying
> 0;
166 /* Check for transform feedback varyings specified in the Shader */
167 if (shader_prog
->last_vert_prog
)
168 shader
->info
.has_transform_feedback_varyings
|=
169 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
174 nir_visitor::nir_visitor(nir_shader
*shader
)
176 this->supports_ints
= shader
->options
->native_integers
;
177 this->shader
= shader
;
178 this->is_global
= true;
179 this->var_table
= _mesa_pointer_hash_table_create(NULL
);
180 this->overload_table
= _mesa_pointer_hash_table_create(NULL
);
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
)
200 nir_visitor::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
++)
219 ret
->values
[0].u32
[r
] = ir
->value
.u
[r
];
221 ret
->values
[0].f32
[r
] = ir
->value
.u
[r
];
226 /* Only float base types can be matrices. */
229 for (unsigned r
= 0; r
< rows
; r
++)
231 ret
->values
[0].i32
[r
] = ir
->value
.i
[r
];
233 ret
->values
[0].f32
[r
] = ir
->value
.i
[r
];
237 case GLSL_TYPE_FLOAT
:
238 for (unsigned c
= 0; c
< cols
; c
++) {
239 for (unsigned r
= 0; r
< rows
; r
++)
240 ret
->values
[c
].f32
[r
] = ir
->value
.f
[c
* rows
+ r
];
244 case GLSL_TYPE_DOUBLE
:
245 for (unsigned c
= 0; c
< cols
; c
++) {
246 for (unsigned r
= 0; r
< rows
; r
++)
247 ret
->values
[c
].f64
[r
] = ir
->value
.d
[c
* rows
+ r
];
251 case GLSL_TYPE_UINT64
:
252 /* Only float base types can be matrices. */
255 for (unsigned r
= 0; r
< rows
; r
++)
256 ret
->values
[0].u64
[r
] = ir
->value
.u64
[r
];
259 case GLSL_TYPE_INT64
:
260 /* Only float base types can be matrices. */
263 for (unsigned r
= 0; r
< rows
; r
++)
264 ret
->values
[0].i64
[r
] = ir
->value
.i64
[r
];
268 /* Only float base types can be matrices. */
271 for (unsigned r
= 0; r
< rows
; r
++)
272 ret
->values
[0].b
[r
] = ir
->value
.b
[r
];
276 case GLSL_TYPE_STRUCT
:
277 case GLSL_TYPE_ARRAY
:
278 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
280 ret
->num_elements
= ir
->type
->length
;
282 for (i
= 0; i
< ir
->type
->length
; i
++)
283 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
287 unreachable("not reached");
294 nir_visitor::visit(ir_variable
*ir
)
296 /* TODO: In future we should switch to using the NIR lowering pass but for
297 * now just ignore these variables as GLSL IR should have lowered them.
298 * Anything remaining are just dead vars that weren't cleaned up.
300 if (ir
->data
.mode
== ir_var_shader_shared
)
303 /* FINISHME: inout parameters */
304 assert(ir
->data
.mode
!= ir_var_function_inout
);
306 if (ir
->data
.mode
== ir_var_function_out
)
309 nir_variable
*var
= rzalloc(shader
, nir_variable
);
310 var
->type
= ir
->type
;
311 var
->name
= ralloc_strdup(var
, ir
->name
);
313 var
->data
.always_active_io
= ir
->data
.always_active_io
;
314 var
->data
.read_only
= ir
->data
.read_only
;
315 var
->data
.centroid
= ir
->data
.centroid
;
316 var
->data
.sample
= ir
->data
.sample
;
317 var
->data
.patch
= ir
->data
.patch
;
318 var
->data
.invariant
= ir
->data
.invariant
;
319 var
->data
.location
= ir
->data
.location
;
320 var
->data
.stream
= ir
->data
.stream
;
321 var
->data
.compact
= false;
323 switch(ir
->data
.mode
) {
325 case ir_var_temporary
:
327 var
->data
.mode
= nir_var_shader_temp
;
329 var
->data
.mode
= nir_var_function_temp
;
332 case ir_var_function_in
:
333 case ir_var_const_in
:
334 var
->data
.mode
= nir_var_function_temp
;
337 case ir_var_shader_in
:
338 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
&&
339 ir
->data
.location
== VARYING_SLOT_FACE
) {
340 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
341 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
342 var
->data
.mode
= nir_var_system_value
;
343 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
344 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
345 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
346 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
347 var
->data
.mode
= nir_var_system_value
;
349 var
->data
.mode
= nir_var_shader_in
;
351 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
352 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
353 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
354 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
359 case ir_var_shader_out
:
360 var
->data
.mode
= nir_var_shader_out
;
361 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
362 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
363 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
364 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
369 if (ir
->get_interface_type())
370 var
->data
.mode
= nir_var_mem_ubo
;
372 var
->data
.mode
= nir_var_uniform
;
375 case ir_var_shader_storage
:
376 var
->data
.mode
= nir_var_mem_ssbo
;
379 case ir_var_system_value
:
380 var
->data
.mode
= nir_var_system_value
;
384 unreachable("not reached");
387 var
->data
.interpolation
= ir
->data
.interpolation
;
388 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
389 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
390 var
->data
.location_frac
= ir
->data
.location_frac
;
392 if (var
->data
.pixel_center_integer
) {
393 assert(shader
->info
.stage
== MESA_SHADER_FRAGMENT
);
394 shader
->info
.fs
.pixel_center_integer
= true;
397 switch (ir
->data
.depth_layout
) {
398 case ir_depth_layout_none
:
399 var
->data
.depth_layout
= nir_depth_layout_none
;
401 case ir_depth_layout_any
:
402 var
->data
.depth_layout
= nir_depth_layout_any
;
404 case ir_depth_layout_greater
:
405 var
->data
.depth_layout
= nir_depth_layout_greater
;
407 case ir_depth_layout_less
:
408 var
->data
.depth_layout
= nir_depth_layout_less
;
410 case ir_depth_layout_unchanged
:
411 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
414 unreachable("not reached");
417 var
->data
.index
= ir
->data
.index
;
418 var
->data
.descriptor_set
= 0;
419 var
->data
.binding
= ir
->data
.binding
;
420 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
421 var
->data
.bindless
= ir
->data
.bindless
;
422 var
->data
.offset
= ir
->data
.offset
;
424 unsigned image_access
= 0;
425 if (ir
->data
.memory_read_only
)
426 image_access
|= ACCESS_NON_WRITEABLE
;
427 if (ir
->data
.memory_write_only
)
428 image_access
|= ACCESS_NON_READABLE
;
429 if (ir
->data
.memory_coherent
)
430 image_access
|= ACCESS_COHERENT
;
431 if (ir
->data
.memory_volatile
)
432 image_access
|= ACCESS_VOLATILE
;
433 if (ir
->data
.memory_restrict
)
434 image_access
|= ACCESS_RESTRICT
;
435 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
436 var
->data
.image
.format
= ir
->data
.image_format
;
438 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
439 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
440 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
441 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
442 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
444 var
->num_state_slots
= ir
->get_num_state_slots();
445 if (var
->num_state_slots
> 0) {
446 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
447 var
->num_state_slots
);
449 ir_state_slot
*state_slots
= ir
->get_state_slots();
450 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
451 for (unsigned j
= 0; j
< 5; j
++)
452 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
453 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
456 var
->state_slots
= NULL
;
459 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
461 var
->interface_type
= ir
->get_interface_type();
463 if (var
->data
.mode
== nir_var_function_temp
)
464 nir_function_impl_add_variable(impl
, var
);
466 nir_shader_add_variable(shader
, var
);
468 _mesa_hash_table_insert(var_table
, ir
, var
);
472 nir_function_visitor::visit_enter(ir_function
*ir
)
474 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
475 visitor
->create_function(sig
);
477 return visit_continue_with_parent
;
481 nir_visitor::create_function(ir_function_signature
*ir
)
483 if (ir
->is_intrinsic())
486 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
487 if (strcmp(ir
->function_name(), "main") == 0)
488 func
->is_entrypoint
= true;
490 func
->num_params
= ir
->parameters
.length() +
491 (ir
->return_type
!= glsl_type::void_type
);
492 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
496 if (ir
->return_type
!= glsl_type::void_type
) {
497 /* The return value is a variable deref (basically an out parameter) */
498 func
->params
[np
].num_components
= 1;
499 func
->params
[np
].bit_size
= 32;
503 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
504 /* FINISHME: pass arrays, structs, etc by reference? */
505 assert(param
->type
->is_vector() || param
->type
->is_scalar());
507 if (param
->data
.mode
== ir_var_function_in
) {
508 func
->params
[np
].num_components
= param
->type
->vector_elements
;
509 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
511 func
->params
[np
].num_components
= 1;
512 func
->params
[np
].bit_size
= 32;
516 assert(np
== func
->num_params
);
518 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
522 nir_visitor::visit(ir_function
*ir
)
524 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
529 nir_visitor::visit(ir_function_signature
*ir
)
531 if (ir
->is_intrinsic())
536 struct hash_entry
*entry
=
537 _mesa_hash_table_search(this->overload_table
, ir
);
540 nir_function
*func
= (nir_function
*) entry
->data
;
542 if (ir
->is_defined
) {
543 nir_function_impl
*impl
= nir_function_impl_create(func
);
546 this->is_global
= false;
548 nir_builder_init(&b
, impl
);
549 b
.cursor
= nir_after_cf_list(&impl
->body
);
551 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
553 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
555 nir_local_variable_create(impl
, param
->type
, param
->name
);
557 if (param
->data
.mode
== ir_var_function_in
) {
558 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
561 _mesa_hash_table_insert(var_table
, param
, var
);
565 visit_exec_list(&ir
->body
, this);
567 this->is_global
= true;
574 nir_visitor::visit(ir_loop
*ir
)
577 visit_exec_list(&ir
->body_instructions
, this);
578 nir_pop_loop(&b
, NULL
);
582 nir_visitor::visit(ir_if
*ir
)
584 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
585 visit_exec_list(&ir
->then_instructions
, this);
586 nir_push_else(&b
, NULL
);
587 visit_exec_list(&ir
->else_instructions
, this);
588 nir_pop_if(&b
, NULL
);
592 nir_visitor::visit(ir_discard
*ir
)
595 * discards aren't treated as control flow, because before we lower them
596 * they can appear anywhere in the shader and the stuff after them may still
597 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
598 * discards will be immediately followed by a return.
601 nir_intrinsic_instr
*discard
;
603 discard
= nir_intrinsic_instr_create(this->shader
,
604 nir_intrinsic_discard_if
);
606 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
608 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
611 nir_builder_instr_insert(&b
, &discard
->instr
);
615 nir_visitor::visit(ir_emit_vertex
*ir
)
617 nir_intrinsic_instr
*instr
=
618 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
619 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
620 nir_builder_instr_insert(&b
, &instr
->instr
);
624 nir_visitor::visit(ir_end_primitive
*ir
)
626 nir_intrinsic_instr
*instr
=
627 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
628 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
629 nir_builder_instr_insert(&b
, &instr
->instr
);
633 nir_visitor::visit(ir_loop_jump
*ir
)
637 case ir_loop_jump::jump_break
:
638 type
= nir_jump_break
;
640 case ir_loop_jump::jump_continue
:
641 type
= nir_jump_continue
;
644 unreachable("not reached");
647 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
648 nir_builder_instr_insert(&b
, &instr
->instr
);
652 nir_visitor::visit(ir_return
*ir
)
654 if (ir
->value
!= NULL
) {
655 nir_deref_instr
*ret_deref
=
656 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
657 nir_var_function_temp
, ir
->value
->type
, 0);
659 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
660 nir_store_deref(&b
, ret_deref
, val
, ~0);
663 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
664 nir_builder_instr_insert(&b
, &instr
->instr
);
668 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
670 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
671 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
672 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
676 nir_visitor::visit(ir_call
*ir
)
678 if (ir
->callee
->is_intrinsic()) {
681 switch (ir
->callee
->intrinsic_id
) {
682 case ir_intrinsic_atomic_counter_read
:
683 op
= nir_intrinsic_atomic_counter_read_deref
;
685 case ir_intrinsic_atomic_counter_increment
:
686 op
= nir_intrinsic_atomic_counter_inc_deref
;
688 case ir_intrinsic_atomic_counter_predecrement
:
689 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
691 case ir_intrinsic_atomic_counter_add
:
692 op
= nir_intrinsic_atomic_counter_add_deref
;
694 case ir_intrinsic_atomic_counter_and
:
695 op
= nir_intrinsic_atomic_counter_and_deref
;
697 case ir_intrinsic_atomic_counter_or
:
698 op
= nir_intrinsic_atomic_counter_or_deref
;
700 case ir_intrinsic_atomic_counter_xor
:
701 op
= nir_intrinsic_atomic_counter_xor_deref
;
703 case ir_intrinsic_atomic_counter_min
:
704 op
= nir_intrinsic_atomic_counter_min_deref
;
706 case ir_intrinsic_atomic_counter_max
:
707 op
= nir_intrinsic_atomic_counter_max_deref
;
709 case ir_intrinsic_atomic_counter_exchange
:
710 op
= nir_intrinsic_atomic_counter_exchange_deref
;
712 case ir_intrinsic_atomic_counter_comp_swap
:
713 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
715 case ir_intrinsic_image_load
:
716 op
= nir_intrinsic_image_deref_load
;
718 case ir_intrinsic_image_store
:
719 op
= nir_intrinsic_image_deref_store
;
721 case ir_intrinsic_image_atomic_add
:
722 op
= ir
->return_deref
->type
->is_integer_32_64()
723 ? nir_intrinsic_image_deref_atomic_add
724 : nir_intrinsic_image_deref_atomic_fadd
;
726 case ir_intrinsic_image_atomic_min
:
727 op
= nir_intrinsic_image_deref_atomic_min
;
729 case ir_intrinsic_image_atomic_max
:
730 op
= nir_intrinsic_image_deref_atomic_max
;
732 case ir_intrinsic_image_atomic_and
:
733 op
= nir_intrinsic_image_deref_atomic_and
;
735 case ir_intrinsic_image_atomic_or
:
736 op
= nir_intrinsic_image_deref_atomic_or
;
738 case ir_intrinsic_image_atomic_xor
:
739 op
= nir_intrinsic_image_deref_atomic_xor
;
741 case ir_intrinsic_image_atomic_exchange
:
742 op
= nir_intrinsic_image_deref_atomic_exchange
;
744 case ir_intrinsic_image_atomic_comp_swap
:
745 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
747 case ir_intrinsic_memory_barrier
:
748 op
= nir_intrinsic_memory_barrier
;
750 case ir_intrinsic_image_size
:
751 op
= nir_intrinsic_image_deref_size
;
753 case ir_intrinsic_image_samples
:
754 op
= nir_intrinsic_image_deref_samples
;
756 case ir_intrinsic_ssbo_store
:
757 op
= nir_intrinsic_store_ssbo
;
759 case ir_intrinsic_ssbo_load
:
760 op
= nir_intrinsic_load_ssbo
;
762 case ir_intrinsic_ssbo_atomic_add
:
763 op
= ir
->return_deref
->type
->is_integer_32_64()
764 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
766 case ir_intrinsic_ssbo_atomic_and
:
767 op
= nir_intrinsic_ssbo_atomic_and
;
769 case ir_intrinsic_ssbo_atomic_or
:
770 op
= nir_intrinsic_ssbo_atomic_or
;
772 case ir_intrinsic_ssbo_atomic_xor
:
773 op
= nir_intrinsic_ssbo_atomic_xor
;
775 case ir_intrinsic_ssbo_atomic_min
:
776 assert(ir
->return_deref
);
777 if (ir
->return_deref
->type
== glsl_type::int_type
)
778 op
= nir_intrinsic_ssbo_atomic_imin
;
779 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
780 op
= nir_intrinsic_ssbo_atomic_umin
;
781 else if (ir
->return_deref
->type
== glsl_type::float_type
)
782 op
= nir_intrinsic_ssbo_atomic_fmin
;
784 unreachable("Invalid type");
786 case ir_intrinsic_ssbo_atomic_max
:
787 assert(ir
->return_deref
);
788 if (ir
->return_deref
->type
== glsl_type::int_type
)
789 op
= nir_intrinsic_ssbo_atomic_imax
;
790 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
791 op
= nir_intrinsic_ssbo_atomic_umax
;
792 else if (ir
->return_deref
->type
== glsl_type::float_type
)
793 op
= nir_intrinsic_ssbo_atomic_fmax
;
795 unreachable("Invalid type");
797 case ir_intrinsic_ssbo_atomic_exchange
:
798 op
= nir_intrinsic_ssbo_atomic_exchange
;
800 case ir_intrinsic_ssbo_atomic_comp_swap
:
801 op
= ir
->return_deref
->type
->is_integer_32_64()
802 ? nir_intrinsic_ssbo_atomic_comp_swap
803 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
805 case ir_intrinsic_shader_clock
:
806 op
= nir_intrinsic_shader_clock
;
808 case ir_intrinsic_begin_invocation_interlock
:
809 op
= nir_intrinsic_begin_invocation_interlock
;
811 case ir_intrinsic_end_invocation_interlock
:
812 op
= nir_intrinsic_end_invocation_interlock
;
814 case ir_intrinsic_group_memory_barrier
:
815 op
= nir_intrinsic_group_memory_barrier
;
817 case ir_intrinsic_memory_barrier_atomic_counter
:
818 op
= nir_intrinsic_memory_barrier_atomic_counter
;
820 case ir_intrinsic_memory_barrier_buffer
:
821 op
= nir_intrinsic_memory_barrier_buffer
;
823 case ir_intrinsic_memory_barrier_image
:
824 op
= nir_intrinsic_memory_barrier_image
;
826 case ir_intrinsic_memory_barrier_shared
:
827 op
= nir_intrinsic_memory_barrier_shared
;
829 case ir_intrinsic_shared_load
:
830 op
= nir_intrinsic_load_shared
;
832 case ir_intrinsic_shared_store
:
833 op
= nir_intrinsic_store_shared
;
835 case ir_intrinsic_shared_atomic_add
:
836 op
= ir
->return_deref
->type
->is_integer_32_64()
837 ? nir_intrinsic_shared_atomic_add
838 : nir_intrinsic_shared_atomic_fadd
;
840 case ir_intrinsic_shared_atomic_and
:
841 op
= nir_intrinsic_shared_atomic_and
;
843 case ir_intrinsic_shared_atomic_or
:
844 op
= nir_intrinsic_shared_atomic_or
;
846 case ir_intrinsic_shared_atomic_xor
:
847 op
= nir_intrinsic_shared_atomic_xor
;
849 case ir_intrinsic_shared_atomic_min
:
850 assert(ir
->return_deref
);
851 if (ir
->return_deref
->type
== glsl_type::int_type
)
852 op
= nir_intrinsic_shared_atomic_imin
;
853 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
854 op
= nir_intrinsic_shared_atomic_umin
;
855 else if (ir
->return_deref
->type
== glsl_type::float_type
)
856 op
= nir_intrinsic_shared_atomic_fmin
;
858 unreachable("Invalid type");
860 case ir_intrinsic_shared_atomic_max
:
861 assert(ir
->return_deref
);
862 if (ir
->return_deref
->type
== glsl_type::int_type
)
863 op
= nir_intrinsic_shared_atomic_imax
;
864 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
865 op
= nir_intrinsic_shared_atomic_umax
;
866 else if (ir
->return_deref
->type
== glsl_type::float_type
)
867 op
= nir_intrinsic_shared_atomic_fmax
;
869 unreachable("Invalid type");
871 case ir_intrinsic_shared_atomic_exchange
:
872 op
= nir_intrinsic_shared_atomic_exchange
;
874 case ir_intrinsic_shared_atomic_comp_swap
:
875 op
= ir
->return_deref
->type
->is_integer_32_64()
876 ? nir_intrinsic_shared_atomic_comp_swap
877 : nir_intrinsic_shared_atomic_fcomp_swap
;
879 case ir_intrinsic_vote_any
:
880 op
= nir_intrinsic_vote_any
;
882 case ir_intrinsic_vote_all
:
883 op
= nir_intrinsic_vote_all
;
885 case ir_intrinsic_vote_eq
:
886 op
= nir_intrinsic_vote_ieq
;
888 case ir_intrinsic_ballot
:
889 op
= nir_intrinsic_ballot
;
891 case ir_intrinsic_read_invocation
:
892 op
= nir_intrinsic_read_invocation
;
894 case ir_intrinsic_read_first_invocation
:
895 op
= nir_intrinsic_read_first_invocation
;
898 unreachable("not reached");
901 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
902 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
905 case nir_intrinsic_atomic_counter_read_deref
:
906 case nir_intrinsic_atomic_counter_inc_deref
:
907 case nir_intrinsic_atomic_counter_pre_dec_deref
:
908 case nir_intrinsic_atomic_counter_add_deref
:
909 case nir_intrinsic_atomic_counter_min_deref
:
910 case nir_intrinsic_atomic_counter_max_deref
:
911 case nir_intrinsic_atomic_counter_and_deref
:
912 case nir_intrinsic_atomic_counter_or_deref
:
913 case nir_intrinsic_atomic_counter_xor_deref
:
914 case nir_intrinsic_atomic_counter_exchange_deref
:
915 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
916 /* Set the counter variable dereference. */
917 exec_node
*param
= ir
->actual_parameters
.get_head();
918 ir_dereference
*counter
= (ir_dereference
*)param
;
920 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
921 param
= param
->get_next();
923 /* Set the intrinsic destination. */
924 if (ir
->return_deref
) {
925 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
928 /* Set the intrinsic parameters. */
929 if (!param
->is_tail_sentinel()) {
931 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
932 param
= param
->get_next();
935 if (!param
->is_tail_sentinel()) {
937 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
938 param
= param
->get_next();
941 nir_builder_instr_insert(&b
, &instr
->instr
);
944 case nir_intrinsic_image_deref_load
:
945 case nir_intrinsic_image_deref_store
:
946 case nir_intrinsic_image_deref_atomic_add
:
947 case nir_intrinsic_image_deref_atomic_min
:
948 case nir_intrinsic_image_deref_atomic_max
:
949 case nir_intrinsic_image_deref_atomic_and
:
950 case nir_intrinsic_image_deref_atomic_or
:
951 case nir_intrinsic_image_deref_atomic_xor
:
952 case nir_intrinsic_image_deref_atomic_exchange
:
953 case nir_intrinsic_image_deref_atomic_comp_swap
:
954 case nir_intrinsic_image_deref_atomic_fadd
:
955 case nir_intrinsic_image_deref_samples
:
956 case nir_intrinsic_image_deref_size
: {
957 nir_ssa_undef_instr
*instr_undef
=
958 nir_ssa_undef_instr_create(shader
, 1, 32);
959 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
961 /* Set the image variable dereference. */
962 exec_node
*param
= ir
->actual_parameters
.get_head();
963 ir_dereference
*image
= (ir_dereference
*)param
;
964 const glsl_type
*type
=
965 image
->variable_referenced()->type
->without_array();
967 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
968 param
= param
->get_next();
970 /* Set the intrinsic destination. */
971 if (ir
->return_deref
) {
972 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
973 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
974 num_components
, 32, NULL
);
977 if (op
== nir_intrinsic_image_deref_size
) {
978 instr
->num_components
= instr
->dest
.ssa
.num_components
;
979 } else if (op
== nir_intrinsic_image_deref_load
||
980 op
== nir_intrinsic_image_deref_store
) {
981 instr
->num_components
= 4;
984 if (op
== nir_intrinsic_image_deref_size
||
985 op
== nir_intrinsic_image_deref_samples
) {
986 nir_builder_instr_insert(&b
, &instr
->instr
);
990 /* Set the address argument, extending the coordinate vector to four
993 nir_ssa_def
*src_addr
=
994 evaluate_rvalue((ir_dereference
*)param
);
995 nir_ssa_def
*srcs
[4];
997 for (int i
= 0; i
< 4; i
++) {
998 if (i
< type
->coordinate_components())
999 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1001 srcs
[i
] = &instr_undef
->def
;
1004 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1005 param
= param
->get_next();
1007 /* Set the sample argument, which is undefined for single-sample
1010 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1012 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1013 param
= param
->get_next();
1015 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1018 /* Set the intrinsic parameters. */
1019 if (!param
->is_tail_sentinel()) {
1021 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1022 param
= param
->get_next();
1025 if (!param
->is_tail_sentinel()) {
1027 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1028 param
= param
->get_next();
1030 nir_builder_instr_insert(&b
, &instr
->instr
);
1033 case nir_intrinsic_memory_barrier
:
1034 case nir_intrinsic_group_memory_barrier
:
1035 case nir_intrinsic_memory_barrier_atomic_counter
:
1036 case nir_intrinsic_memory_barrier_buffer
:
1037 case nir_intrinsic_memory_barrier_image
:
1038 case nir_intrinsic_memory_barrier_shared
:
1039 nir_builder_instr_insert(&b
, &instr
->instr
);
1041 case nir_intrinsic_shader_clock
:
1042 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1043 instr
->num_components
= 2;
1044 nir_builder_instr_insert(&b
, &instr
->instr
);
1046 case nir_intrinsic_begin_invocation_interlock
:
1047 nir_builder_instr_insert(&b
, &instr
->instr
);
1049 case nir_intrinsic_end_invocation_interlock
:
1050 nir_builder_instr_insert(&b
, &instr
->instr
);
1052 case nir_intrinsic_store_ssbo
: {
1053 exec_node
*param
= ir
->actual_parameters
.get_head();
1054 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1056 param
= param
->get_next();
1057 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1059 param
= param
->get_next();
1060 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1062 param
= param
->get_next();
1063 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1066 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1067 if (val
->type
->is_boolean())
1068 nir_val
= nir_b2i32(&b
, nir_val
);
1070 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1071 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1072 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1073 intrinsic_set_std430_align(instr
, val
->type
);
1074 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1075 instr
->num_components
= val
->type
->vector_elements
;
1077 nir_builder_instr_insert(&b
, &instr
->instr
);
1080 case nir_intrinsic_load_ssbo
: {
1081 exec_node
*param
= ir
->actual_parameters
.get_head();
1082 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1084 param
= param
->get_next();
1085 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1087 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1088 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1090 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1091 instr
->num_components
= type
->vector_elements
;
1092 intrinsic_set_std430_align(instr
, type
);
1094 /* Setup destination register */
1095 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1096 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1097 type
->vector_elements
, bit_size
, NULL
);
1099 /* Insert the created nir instruction now since in the case of boolean
1100 * result we will need to emit another instruction after it
1102 nir_builder_instr_insert(&b
, &instr
->instr
);
1105 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1106 * consider a true boolean to be ~0. Fix this up with a != 0
1109 if (type
->is_boolean())
1110 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1113 case nir_intrinsic_ssbo_atomic_add
:
1114 case nir_intrinsic_ssbo_atomic_imin
:
1115 case nir_intrinsic_ssbo_atomic_umin
:
1116 case nir_intrinsic_ssbo_atomic_imax
:
1117 case nir_intrinsic_ssbo_atomic_umax
:
1118 case nir_intrinsic_ssbo_atomic_and
:
1119 case nir_intrinsic_ssbo_atomic_or
:
1120 case nir_intrinsic_ssbo_atomic_xor
:
1121 case nir_intrinsic_ssbo_atomic_exchange
:
1122 case nir_intrinsic_ssbo_atomic_comp_swap
:
1123 case nir_intrinsic_ssbo_atomic_fadd
:
1124 case nir_intrinsic_ssbo_atomic_fmin
:
1125 case nir_intrinsic_ssbo_atomic_fmax
:
1126 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1127 int param_count
= ir
->actual_parameters
.length();
1128 assert(param_count
== 3 || param_count
== 4);
1131 exec_node
*param
= ir
->actual_parameters
.get_head();
1132 ir_instruction
*inst
= (ir_instruction
*) param
;
1133 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1136 param
= param
->get_next();
1137 inst
= (ir_instruction
*) param
;
1138 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1140 /* data1 parameter (this is always present) */
1141 param
= param
->get_next();
1142 inst
= (ir_instruction
*) param
;
1143 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1145 /* data2 parameter (only with atomic_comp_swap) */
1146 if (param_count
== 4) {
1147 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1148 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1149 param
= param
->get_next();
1150 inst
= (ir_instruction
*) param
;
1151 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1155 assert(ir
->return_deref
);
1156 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1157 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1158 nir_builder_instr_insert(&b
, &instr
->instr
);
1161 case nir_intrinsic_load_shared
: {
1162 exec_node
*param
= ir
->actual_parameters
.get_head();
1163 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1165 nir_intrinsic_set_base(instr
, 0);
1166 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1168 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1169 instr
->num_components
= type
->vector_elements
;
1170 intrinsic_set_std430_align(instr
, type
);
1172 /* Setup destination register */
1173 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1174 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1175 type
->vector_elements
, bit_size
, NULL
);
1177 nir_builder_instr_insert(&b
, &instr
->instr
);
1179 /* The value in shared memory is a 32-bit value */
1180 if (type
->is_boolean())
1181 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1184 case nir_intrinsic_store_shared
: {
1185 exec_node
*param
= ir
->actual_parameters
.get_head();
1186 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1188 param
= param
->get_next();
1189 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1191 param
= param
->get_next();
1192 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1195 nir_intrinsic_set_base(instr
, 0);
1196 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1198 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1200 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1201 /* The value in shared memory is a 32-bit value */
1202 if (val
->type
->is_boolean())
1203 nir_val
= nir_b2i32(&b
, nir_val
);
1205 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1206 instr
->num_components
= val
->type
->vector_elements
;
1207 intrinsic_set_std430_align(instr
, val
->type
);
1209 nir_builder_instr_insert(&b
, &instr
->instr
);
1212 case nir_intrinsic_shared_atomic_add
:
1213 case nir_intrinsic_shared_atomic_imin
:
1214 case nir_intrinsic_shared_atomic_umin
:
1215 case nir_intrinsic_shared_atomic_imax
:
1216 case nir_intrinsic_shared_atomic_umax
:
1217 case nir_intrinsic_shared_atomic_and
:
1218 case nir_intrinsic_shared_atomic_or
:
1219 case nir_intrinsic_shared_atomic_xor
:
1220 case nir_intrinsic_shared_atomic_exchange
:
1221 case nir_intrinsic_shared_atomic_comp_swap
:
1222 case nir_intrinsic_shared_atomic_fadd
:
1223 case nir_intrinsic_shared_atomic_fmin
:
1224 case nir_intrinsic_shared_atomic_fmax
:
1225 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1226 int param_count
= ir
->actual_parameters
.length();
1227 assert(param_count
== 2 || param_count
== 3);
1230 exec_node
*param
= ir
->actual_parameters
.get_head();
1231 ir_instruction
*inst
= (ir_instruction
*) param
;
1232 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1234 /* data1 parameter (this is always present) */
1235 param
= param
->get_next();
1236 inst
= (ir_instruction
*) param
;
1237 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1239 /* data2 parameter (only with atomic_comp_swap) */
1240 if (param_count
== 3) {
1241 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1242 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1243 param
= param
->get_next();
1244 inst
= (ir_instruction
*) param
;
1246 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1250 assert(ir
->return_deref
);
1251 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1252 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1253 ir
->return_deref
->type
->vector_elements
,
1255 nir_builder_instr_insert(&b
, &instr
->instr
);
1258 case nir_intrinsic_vote_any
:
1259 case nir_intrinsic_vote_all
:
1260 case nir_intrinsic_vote_ieq
: {
1261 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1262 instr
->num_components
= 1;
1264 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1265 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1267 nir_builder_instr_insert(&b
, &instr
->instr
);
1271 case nir_intrinsic_ballot
: {
1272 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1273 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1274 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1276 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1277 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1279 nir_builder_instr_insert(&b
, &instr
->instr
);
1282 case nir_intrinsic_read_invocation
: {
1283 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1284 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1285 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1287 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1288 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1290 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1291 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1293 nir_builder_instr_insert(&b
, &instr
->instr
);
1296 case nir_intrinsic_read_first_invocation
: {
1297 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1298 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1299 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1301 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1302 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1304 nir_builder_instr_insert(&b
, &instr
->instr
);
1308 unreachable("not reached");
1311 if (ir
->return_deref
)
1312 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1317 struct hash_entry
*entry
=
1318 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1320 nir_function
*callee
= (nir_function
*) entry
->data
;
1322 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1325 nir_deref_instr
*ret_deref
= NULL
;
1326 if (ir
->return_deref
) {
1327 nir_variable
*ret_tmp
=
1328 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1330 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1331 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1334 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1335 actual_node
, &ir
->actual_parameters
) {
1336 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1337 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1339 if (sig_param
->data
.mode
== ir_var_function_out
) {
1340 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1341 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1342 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1343 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1344 nir_src src
= nir_src_for_ssa(val
);
1346 nir_src_copy(&call
->params
[i
], &src
, call
);
1347 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1348 unreachable("unimplemented: inout parameters");
1354 nir_builder_instr_insert(&b
, &call
->instr
);
1356 if (ir
->return_deref
)
1357 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1361 nir_visitor::visit(ir_assignment
*ir
)
1363 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1365 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1366 ir
->lhs
->variable_referenced()->data
.precise
;
1368 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1369 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1370 if (ir
->condition
) {
1371 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1372 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1373 nir_pop_if(&b
, NULL
);
1375 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1380 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1382 ir
->lhs
->accept(this);
1383 nir_deref_instr
*lhs_deref
= this->deref
;
1384 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1386 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1387 /* GLSL IR will give us the input to the write-masked assignment in a
1388 * single packed vector. So, for example, if the writemask is xzw, then
1389 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1393 unsigned component
= 0;
1394 for (unsigned i
= 0; i
< 4; i
++) {
1395 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1397 src
= nir_swizzle(&b
, src
, swiz
, num_components
, false);
1400 if (ir
->condition
) {
1401 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1402 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1403 nir_pop_if(&b
, NULL
);
1405 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1410 * Given an instruction, returns a pointer to its destination or NULL if there
1411 * is no destination.
1413 * Note that this only handles instructions we generate at this level.
1416 get_instr_dest(nir_instr
*instr
)
1418 nir_alu_instr
*alu_instr
;
1419 nir_intrinsic_instr
*intrinsic_instr
;
1420 nir_tex_instr
*tex_instr
;
1422 switch (instr
->type
) {
1423 case nir_instr_type_alu
:
1424 alu_instr
= nir_instr_as_alu(instr
);
1425 return &alu_instr
->dest
.dest
;
1427 case nir_instr_type_intrinsic
:
1428 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1429 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1430 return &intrinsic_instr
->dest
;
1434 case nir_instr_type_tex
:
1435 tex_instr
= nir_instr_as_tex(instr
);
1436 return &tex_instr
->dest
;
1439 unreachable("not reached");
1446 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1449 nir_dest
*dest
= get_instr_dest(instr
);
1452 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1454 nir_builder_instr_insert(&b
, instr
);
1457 assert(dest
->is_ssa
);
1458 this->result
= &dest
->ssa
;
1463 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1466 if (ir
->as_dereference() || ir
->as_constant()) {
1468 * A dereference is being used on the right hand side, which means we
1469 * must emit a variable load.
1472 this->result
= nir_load_deref(&b
, this->deref
);
1475 return this->result
;
1479 type_is_float(glsl_base_type type
)
1481 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1482 type
== GLSL_TYPE_FLOAT16
;
1486 type_is_signed(glsl_base_type type
)
1488 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1489 type
== GLSL_TYPE_INT16
;
1493 type_is_int(glsl_base_type type
)
1495 return type
== GLSL_TYPE_UINT
|| type
== GLSL_TYPE_INT
||
1496 type
== GLSL_TYPE_UINT8
|| type
== GLSL_TYPE_INT8
||
1497 type
== GLSL_TYPE_UINT16
|| type
== GLSL_TYPE_INT16
||
1498 type
== GLSL_TYPE_UINT64
|| type
== GLSL_TYPE_INT64
;
1502 nir_visitor::visit(ir_expression
*ir
)
1504 /* Some special cases */
1505 switch (ir
->operation
) {
1506 case ir_binop_ubo_load
: {
1507 nir_intrinsic_instr
*load
=
1508 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1509 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1510 glsl_get_bit_size(ir
->type
);
1511 load
->num_components
= ir
->type
->vector_elements
;
1512 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1513 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1514 intrinsic_set_std430_align(load
, ir
->type
);
1515 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1518 * In UBO's, a true boolean value is any non-zero value, but we consider
1519 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1522 if (ir
->type
->is_boolean())
1523 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1528 case ir_unop_interpolate_at_centroid
:
1529 case ir_binop_interpolate_at_offset
:
1530 case ir_binop_interpolate_at_sample
: {
1531 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1532 ir_swizzle
*swizzle
= NULL
;
1534 /* the api does not allow a swizzle here, but the varying packing code
1535 * may have pushed one into here.
1537 swizzle
= ir
->operands
[0]->as_swizzle();
1539 deref
= swizzle
->val
->as_dereference();
1543 deref
->accept(this);
1545 nir_intrinsic_op op
;
1546 if (this->deref
->mode
== nir_var_shader_in
) {
1547 switch (ir
->operation
) {
1548 case ir_unop_interpolate_at_centroid
:
1549 op
= nir_intrinsic_interp_deref_at_centroid
;
1551 case ir_binop_interpolate_at_offset
:
1552 op
= nir_intrinsic_interp_deref_at_offset
;
1554 case ir_binop_interpolate_at_sample
:
1555 op
= nir_intrinsic_interp_deref_at_sample
;
1558 unreachable("Invalid interpolation intrinsic");
1561 /* This case can happen if the vertex shader does not write the
1562 * given varying. In this case, the linker will lower it to a
1563 * global variable. Since interpolating a variable makes no
1564 * sense, we'll just turn it into a load which will probably
1565 * eventually end up as an SSA definition.
1567 assert(this->deref
->mode
== nir_var_shader_temp
);
1568 op
= nir_intrinsic_load_deref
;
1571 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1572 intrin
->num_components
= deref
->type
->vector_elements
;
1573 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1575 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1576 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1577 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1579 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1580 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1583 unsigned swiz
[4] = {
1584 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1587 result
= nir_swizzle(&b
, result
, swiz
,
1588 swizzle
->type
->vector_elements
, false);
1598 nir_ssa_def
*srcs
[4];
1599 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1600 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1602 glsl_base_type types
[4];
1603 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1604 if (supports_ints
|| !type_is_int(ir
->operands
[i
]->type
->base_type
))
1605 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1607 types
[i
] = GLSL_TYPE_FLOAT
;
1609 glsl_base_type out_type
;
1610 if (supports_ints
|| !type_is_int(ir
->type
->base_type
))
1611 out_type
= ir
->type
->base_type
;
1613 out_type
= GLSL_TYPE_FLOAT
;
1615 switch (ir
->operation
) {
1616 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1617 case ir_unop_logic_not
:
1618 result
= nir_inot(&b
, srcs
[0]);
1621 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1622 : nir_ineg(&b
, srcs
[0]);
1625 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1626 : nir_iabs(&b
, srcs
[0]);
1628 case ir_unop_saturate
:
1629 assert(type_is_float(types
[0]));
1630 result
= nir_fsat(&b
, srcs
[0]);
1633 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1634 : nir_isign(&b
, srcs
[0]);
1636 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1637 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1638 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1639 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1640 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1641 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1642 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1644 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1647 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1650 result
= nir_b2f32(&b
, srcs
[0]);
1653 result
= supports_ints
? nir_f2i32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1656 result
= supports_ints
? nir_f2u32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1688 case ir_unop_i642u64
:
1689 case ir_unop_u642i64
: {
1690 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1691 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1692 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1693 nir_rounding_mode_undef
),
1694 srcs
[0], NULL
, NULL
, NULL
);
1695 /* b2i and b2f don't have fixed bit-size versions so the builder will
1696 * just assume 32 and we have to fix it up here.
1698 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1702 case ir_unop_bitcast_i2f
:
1703 case ir_unop_bitcast_f2i
:
1704 case ir_unop_bitcast_u2f
:
1705 case ir_unop_bitcast_f2u
:
1706 case ir_unop_bitcast_i642d
:
1707 case ir_unop_bitcast_d2i64
:
1708 case ir_unop_bitcast_u642d
:
1709 case ir_unop_bitcast_d2u64
:
1710 case ir_unop_subroutine_to_int
:
1712 result
= nir_imov(&b
, srcs
[0]);
1714 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1715 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1716 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1717 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1718 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1719 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1720 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1721 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1722 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1723 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1724 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1725 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1726 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1727 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1728 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1729 case ir_unop_pack_snorm_2x16
:
1730 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1732 case ir_unop_pack_snorm_4x8
:
1733 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1735 case ir_unop_pack_unorm_2x16
:
1736 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1738 case ir_unop_pack_unorm_4x8
:
1739 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1741 case ir_unop_pack_half_2x16
:
1742 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1744 case ir_unop_unpack_snorm_2x16
:
1745 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1747 case ir_unop_unpack_snorm_4x8
:
1748 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1750 case ir_unop_unpack_unorm_2x16
:
1751 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1753 case ir_unop_unpack_unorm_4x8
:
1754 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1756 case ir_unop_unpack_half_2x16
:
1757 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1759 case ir_unop_pack_sampler_2x32
:
1760 case ir_unop_pack_image_2x32
:
1761 case ir_unop_pack_double_2x32
:
1762 case ir_unop_pack_int_2x32
:
1763 case ir_unop_pack_uint_2x32
:
1764 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1766 case ir_unop_unpack_sampler_2x32
:
1767 case ir_unop_unpack_image_2x32
:
1768 case ir_unop_unpack_double_2x32
:
1769 case ir_unop_unpack_int_2x32
:
1770 case ir_unop_unpack_uint_2x32
:
1771 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1773 case ir_unop_bitfield_reverse
:
1774 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1776 case ir_unop_bit_count
:
1777 result
= nir_bit_count(&b
, srcs
[0]);
1779 case ir_unop_find_msb
:
1781 case GLSL_TYPE_UINT
:
1782 result
= nir_ufind_msb(&b
, srcs
[0]);
1785 result
= nir_ifind_msb(&b
, srcs
[0]);
1788 unreachable("Invalid type for findMSB()");
1791 case ir_unop_find_lsb
:
1792 result
= nir_find_lsb(&b
, srcs
[0]);
1796 switch (ir
->type
->vector_elements
) {
1798 switch (ir
->operands
[0]->type
->vector_elements
) {
1799 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1800 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1801 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1802 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1803 default: unreachable("not reached");
1807 switch (ir
->operands
[0]->type
->vector_elements
) {
1808 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1809 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1810 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1811 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1812 default: unreachable("not reached");
1816 switch (ir
->operands
[0]->type
->vector_elements
) {
1817 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1818 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1819 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1820 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1821 default: unreachable("not reached");
1825 switch (ir
->operands
[0]->type
->vector_elements
) {
1826 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1827 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1828 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1829 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1830 default: unreachable("not reached");
1834 unreachable("not reached");
1837 case ir_unop_get_buffer_size
: {
1838 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1840 nir_intrinsic_get_buffer_size
);
1841 load
->num_components
= ir
->type
->vector_elements
;
1842 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1843 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1844 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1849 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1850 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1853 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1854 : nir_isub(&b
, srcs
[0], srcs
[1]);
1857 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1858 : nir_imul(&b
, srcs
[0], srcs
[1]);
1861 if (type_is_float(out_type
))
1862 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1863 else if (type_is_signed(out_type
))
1864 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1866 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1869 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1870 : nir_umod(&b
, srcs
[0], srcs
[1]);
1873 if (type_is_float(out_type
))
1874 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1875 else if (type_is_signed(out_type
))
1876 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1878 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1881 if (type_is_float(out_type
))
1882 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1883 else if (type_is_signed(out_type
))
1884 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1886 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1888 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1889 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1890 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1891 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1892 case ir_binop_logic_and
:
1893 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
1895 case ir_binop_logic_or
:
1896 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
1898 case ir_binop_logic_xor
:
1899 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
1901 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1902 case ir_binop_rshift
:
1903 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1904 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1906 case ir_binop_imul_high
:
1907 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1908 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1910 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1911 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1913 if (type_is_float(types
[0]))
1914 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1915 else if (type_is_signed(types
[0]))
1916 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1918 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1920 case ir_binop_gequal
:
1921 if (type_is_float(types
[0]))
1922 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1923 else if (type_is_signed(types
[0]))
1924 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1926 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1928 case ir_binop_equal
:
1929 if (type_is_float(types
[0]))
1930 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1932 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1934 case ir_binop_nequal
:
1935 if (type_is_float(types
[0]))
1936 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1938 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1940 case ir_binop_all_equal
:
1941 if (type_is_float(types
[0])) {
1942 switch (ir
->operands
[0]->type
->vector_elements
) {
1943 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1944 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1945 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1946 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1948 unreachable("not reached");
1951 switch (ir
->operands
[0]->type
->vector_elements
) {
1952 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1953 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1954 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1955 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1957 unreachable("not reached");
1961 case ir_binop_any_nequal
:
1962 if (type_is_float(types
[0])) {
1963 switch (ir
->operands
[0]->type
->vector_elements
) {
1964 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1965 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1966 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1967 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1969 unreachable("not reached");
1972 switch (ir
->operands
[0]->type
->vector_elements
) {
1973 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1974 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1975 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1976 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1978 unreachable("not reached");
1983 switch (ir
->operands
[0]->type
->vector_elements
) {
1984 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
1985 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
1986 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
1988 unreachable("not reached");
1991 case ir_binop_vector_extract
: {
1992 result
= nir_channel(&b
, srcs
[0], 0);
1993 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
1994 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
1995 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2001 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2003 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2006 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2009 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2011 case ir_triop_bitfield_extract
:
2012 result
= (out_type
== GLSL_TYPE_INT
) ?
2013 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2014 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2016 case ir_quadop_bitfield_insert
:
2017 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2019 case ir_quadop_vector
:
2020 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2024 unreachable("not reached");
2029 nir_visitor::visit(ir_swizzle
*ir
)
2031 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2032 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2033 ir
->type
->vector_elements
, false);
2037 nir_visitor::visit(ir_texture
*ir
)
2044 num_srcs
= 1; /* coordinate */
2049 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2050 num_srcs
= 2; /* coordinate, bias/lod */
2054 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2060 if (ir
->lod_info
.lod
!= NULL
)
2061 num_srcs
= 2; /* coordinate, lod */
2063 num_srcs
= 1; /* coordinate */
2067 op
= nir_texop_txf_ms
;
2068 num_srcs
= 2; /* coordinate, sample_index */
2073 if (ir
->lod_info
.lod
!= NULL
)
2074 num_srcs
= 1; /* lod */
2081 num_srcs
= 1; /* coordinate */
2086 num_srcs
= 1; /* coordinate */
2089 case ir_query_levels
:
2090 op
= nir_texop_query_levels
;
2094 case ir_texture_samples
:
2095 op
= nir_texop_texture_samples
;
2099 case ir_samples_identical
:
2100 op
= nir_texop_samples_identical
;
2101 num_srcs
= 1; /* coordinate */
2105 unreachable("not reached");
2108 if (ir
->projector
!= NULL
)
2110 if (ir
->shadow_comparator
!= NULL
)
2112 if (ir
->offset
!= NULL
)
2115 /* Add one for the texture deref */
2118 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2121 instr
->sampler_dim
=
2122 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2123 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2124 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2125 if (instr
->is_shadow
)
2126 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2127 switch (ir
->type
->base_type
) {
2128 case GLSL_TYPE_FLOAT
:
2129 instr
->dest_type
= nir_type_float
;
2132 instr
->dest_type
= nir_type_int
;
2134 case GLSL_TYPE_BOOL
:
2135 case GLSL_TYPE_UINT
:
2136 instr
->dest_type
= nir_type_uint
;
2139 unreachable("not reached");
2142 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2143 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2144 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2145 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2146 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2148 unsigned src_number
= 2;
2150 if (ir
->coordinate
!= NULL
) {
2151 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2152 instr
->src
[src_number
].src
=
2153 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2154 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2158 if (ir
->projector
!= NULL
) {
2159 instr
->src
[src_number
].src
=
2160 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2161 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2165 if (ir
->shadow_comparator
!= NULL
) {
2166 instr
->src
[src_number
].src
=
2167 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2168 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2172 if (ir
->offset
!= NULL
) {
2173 /* we don't support multiple offsets yet */
2174 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2176 instr
->src
[src_number
].src
=
2177 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2178 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2184 instr
->src
[src_number
].src
=
2185 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2186 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2193 if (ir
->lod_info
.lod
!= NULL
) {
2194 instr
->src
[src_number
].src
=
2195 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2196 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2202 instr
->src
[src_number
].src
=
2203 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2204 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2206 instr
->src
[src_number
].src
=
2207 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2208 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2213 instr
->src
[src_number
].src
=
2214 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2215 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2220 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2227 assert(src_number
== num_srcs
);
2229 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2230 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2234 nir_visitor::visit(ir_constant
*ir
)
2237 * We don't know if this variable is an array or struct that gets
2238 * dereferenced, so do the safe thing an make it a variable with a
2239 * constant initializer and return a dereference.
2243 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2244 var
->data
.read_only
= true;
2245 var
->constant_initializer
= constant_copy(ir
, var
);
2247 this->deref
= nir_build_deref_var(&b
, var
);
2251 nir_visitor::visit(ir_dereference_variable
*ir
)
2253 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2254 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2256 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2257 if (param
== ir
->variable_referenced()) {
2263 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2264 nir_var_function_temp
, ir
->type
, 0);
2268 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2270 struct hash_entry
*entry
=
2271 _mesa_hash_table_search(this->var_table
, ir
->var
);
2273 nir_variable
*var
= (nir_variable
*) entry
->data
;
2275 this->deref
= nir_build_deref_var(&b
, var
);
2279 nir_visitor::visit(ir_dereference_record
*ir
)
2281 ir
->record
->accept(this);
2283 int field_index
= ir
->field_idx
;
2284 assert(field_index
>= 0);
2286 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2290 nir_visitor::visit(ir_dereference_array
*ir
)
2292 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2294 ir
->array
->accept(this);
2296 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2300 nir_visitor::visit(ir_barrier
*)
2302 nir_intrinsic_instr
*instr
=
2303 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2304 nir_builder_instr_insert(&b
, &instr
->instr
);