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();
357 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
358 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
359 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
360 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
365 case ir_var_shader_out
:
366 var
->data
.mode
= nir_var_shader_out
;
367 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
368 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
369 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
370 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
373 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
374 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
375 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
376 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
381 if (ir
->get_interface_type())
382 var
->data
.mode
= nir_var_mem_ubo
;
384 var
->data
.mode
= nir_var_uniform
;
387 case ir_var_shader_storage
:
388 var
->data
.mode
= nir_var_mem_ssbo
;
391 case ir_var_system_value
:
392 var
->data
.mode
= nir_var_system_value
;
396 unreachable("not reached");
399 var
->data
.interpolation
= ir
->data
.interpolation
;
400 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
401 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
402 var
->data
.location_frac
= ir
->data
.location_frac
;
404 switch (ir
->data
.depth_layout
) {
405 case ir_depth_layout_none
:
406 var
->data
.depth_layout
= nir_depth_layout_none
;
408 case ir_depth_layout_any
:
409 var
->data
.depth_layout
= nir_depth_layout_any
;
411 case ir_depth_layout_greater
:
412 var
->data
.depth_layout
= nir_depth_layout_greater
;
414 case ir_depth_layout_less
:
415 var
->data
.depth_layout
= nir_depth_layout_less
;
417 case ir_depth_layout_unchanged
:
418 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
421 unreachable("not reached");
424 var
->data
.index
= ir
->data
.index
;
425 var
->data
.descriptor_set
= 0;
426 var
->data
.binding
= ir
->data
.binding
;
427 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
428 var
->data
.bindless
= ir
->data
.bindless
;
429 var
->data
.offset
= ir
->data
.offset
;
431 unsigned image_access
= 0;
432 if (ir
->data
.memory_read_only
)
433 image_access
|= ACCESS_NON_WRITEABLE
;
434 if (ir
->data
.memory_write_only
)
435 image_access
|= ACCESS_NON_READABLE
;
436 if (ir
->data
.memory_coherent
)
437 image_access
|= ACCESS_COHERENT
;
438 if (ir
->data
.memory_volatile
)
439 image_access
|= ACCESS_VOLATILE
;
440 if (ir
->data
.memory_restrict
)
441 image_access
|= ACCESS_RESTRICT
;
442 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
443 var
->data
.image
.format
= ir
->data
.image_format
;
445 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
446 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
447 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
448 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
449 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
451 var
->num_state_slots
= ir
->get_num_state_slots();
452 if (var
->num_state_slots
> 0) {
453 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
454 var
->num_state_slots
);
456 ir_state_slot
*state_slots
= ir
->get_state_slots();
457 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
458 for (unsigned j
= 0; j
< 5; j
++)
459 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
460 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
463 var
->state_slots
= NULL
;
466 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
468 var
->interface_type
= ir
->get_interface_type();
470 if (var
->data
.mode
== nir_var_function_temp
)
471 nir_function_impl_add_variable(impl
, var
);
473 nir_shader_add_variable(shader
, var
);
475 _mesa_hash_table_insert(var_table
, ir
, var
);
479 nir_function_visitor::visit_enter(ir_function
*ir
)
481 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
482 visitor
->create_function(sig
);
484 return visit_continue_with_parent
;
488 nir_visitor::create_function(ir_function_signature
*ir
)
490 if (ir
->is_intrinsic())
493 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
494 if (strcmp(ir
->function_name(), "main") == 0)
495 func
->is_entrypoint
= true;
497 func
->num_params
= ir
->parameters
.length() +
498 (ir
->return_type
!= glsl_type::void_type
);
499 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
503 if (ir
->return_type
!= glsl_type::void_type
) {
504 /* The return value is a variable deref (basically an out parameter) */
505 func
->params
[np
].num_components
= 1;
506 func
->params
[np
].bit_size
= 32;
510 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
511 /* FINISHME: pass arrays, structs, etc by reference? */
512 assert(param
->type
->is_vector() || param
->type
->is_scalar());
514 if (param
->data
.mode
== ir_var_function_in
) {
515 func
->params
[np
].num_components
= param
->type
->vector_elements
;
516 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
518 func
->params
[np
].num_components
= 1;
519 func
->params
[np
].bit_size
= 32;
523 assert(np
== func
->num_params
);
525 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
529 nir_visitor::visit(ir_function
*ir
)
531 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
536 nir_visitor::visit(ir_function_signature
*ir
)
538 if (ir
->is_intrinsic())
543 struct hash_entry
*entry
=
544 _mesa_hash_table_search(this->overload_table
, ir
);
547 nir_function
*func
= (nir_function
*) entry
->data
;
549 if (ir
->is_defined
) {
550 nir_function_impl
*impl
= nir_function_impl_create(func
);
553 this->is_global
= false;
555 nir_builder_init(&b
, impl
);
556 b
.cursor
= nir_after_cf_list(&impl
->body
);
558 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
560 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
562 nir_local_variable_create(impl
, param
->type
, param
->name
);
564 if (param
->data
.mode
== ir_var_function_in
) {
565 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
568 _mesa_hash_table_insert(var_table
, param
, var
);
572 visit_exec_list(&ir
->body
, this);
574 this->is_global
= true;
581 nir_visitor::visit(ir_loop
*ir
)
584 visit_exec_list(&ir
->body_instructions
, this);
585 nir_pop_loop(&b
, NULL
);
589 nir_visitor::visit(ir_if
*ir
)
591 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
592 visit_exec_list(&ir
->then_instructions
, this);
593 nir_push_else(&b
, NULL
);
594 visit_exec_list(&ir
->else_instructions
, this);
595 nir_pop_if(&b
, NULL
);
599 nir_visitor::visit(ir_discard
*ir
)
602 * discards aren't treated as control flow, because before we lower them
603 * they can appear anywhere in the shader and the stuff after them may still
604 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
605 * discards will be immediately followed by a return.
608 nir_intrinsic_instr
*discard
;
610 discard
= nir_intrinsic_instr_create(this->shader
,
611 nir_intrinsic_discard_if
);
613 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
615 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
618 nir_builder_instr_insert(&b
, &discard
->instr
);
622 nir_visitor::visit(ir_emit_vertex
*ir
)
624 nir_intrinsic_instr
*instr
=
625 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
626 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
627 nir_builder_instr_insert(&b
, &instr
->instr
);
631 nir_visitor::visit(ir_end_primitive
*ir
)
633 nir_intrinsic_instr
*instr
=
634 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
635 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
636 nir_builder_instr_insert(&b
, &instr
->instr
);
640 nir_visitor::visit(ir_loop_jump
*ir
)
644 case ir_loop_jump::jump_break
:
645 type
= nir_jump_break
;
647 case ir_loop_jump::jump_continue
:
648 type
= nir_jump_continue
;
651 unreachable("not reached");
654 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
655 nir_builder_instr_insert(&b
, &instr
->instr
);
659 nir_visitor::visit(ir_return
*ir
)
661 if (ir
->value
!= NULL
) {
662 nir_deref_instr
*ret_deref
=
663 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
664 nir_var_function_temp
, ir
->value
->type
, 0);
666 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
667 nir_store_deref(&b
, ret_deref
, val
, ~0);
670 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
671 nir_builder_instr_insert(&b
, &instr
->instr
);
675 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
677 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
678 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
679 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
683 nir_visitor::visit(ir_call
*ir
)
685 if (ir
->callee
->is_intrinsic()) {
688 switch (ir
->callee
->intrinsic_id
) {
689 case ir_intrinsic_atomic_counter_read
:
690 op
= nir_intrinsic_atomic_counter_read_deref
;
692 case ir_intrinsic_atomic_counter_increment
:
693 op
= nir_intrinsic_atomic_counter_inc_deref
;
695 case ir_intrinsic_atomic_counter_predecrement
:
696 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
698 case ir_intrinsic_atomic_counter_add
:
699 op
= nir_intrinsic_atomic_counter_add_deref
;
701 case ir_intrinsic_atomic_counter_and
:
702 op
= nir_intrinsic_atomic_counter_and_deref
;
704 case ir_intrinsic_atomic_counter_or
:
705 op
= nir_intrinsic_atomic_counter_or_deref
;
707 case ir_intrinsic_atomic_counter_xor
:
708 op
= nir_intrinsic_atomic_counter_xor_deref
;
710 case ir_intrinsic_atomic_counter_min
:
711 op
= nir_intrinsic_atomic_counter_min_deref
;
713 case ir_intrinsic_atomic_counter_max
:
714 op
= nir_intrinsic_atomic_counter_max_deref
;
716 case ir_intrinsic_atomic_counter_exchange
:
717 op
= nir_intrinsic_atomic_counter_exchange_deref
;
719 case ir_intrinsic_atomic_counter_comp_swap
:
720 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
722 case ir_intrinsic_image_load
:
723 op
= nir_intrinsic_image_deref_load
;
725 case ir_intrinsic_image_store
:
726 op
= nir_intrinsic_image_deref_store
;
728 case ir_intrinsic_image_atomic_add
:
729 op
= ir
->return_deref
->type
->is_integer_32_64()
730 ? nir_intrinsic_image_deref_atomic_add
731 : nir_intrinsic_image_deref_atomic_fadd
;
733 case ir_intrinsic_image_atomic_min
:
734 op
= nir_intrinsic_image_deref_atomic_min
;
736 case ir_intrinsic_image_atomic_max
:
737 op
= nir_intrinsic_image_deref_atomic_max
;
739 case ir_intrinsic_image_atomic_and
:
740 op
= nir_intrinsic_image_deref_atomic_and
;
742 case ir_intrinsic_image_atomic_or
:
743 op
= nir_intrinsic_image_deref_atomic_or
;
745 case ir_intrinsic_image_atomic_xor
:
746 op
= nir_intrinsic_image_deref_atomic_xor
;
748 case ir_intrinsic_image_atomic_exchange
:
749 op
= nir_intrinsic_image_deref_atomic_exchange
;
751 case ir_intrinsic_image_atomic_comp_swap
:
752 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
754 case ir_intrinsic_memory_barrier
:
755 op
= nir_intrinsic_memory_barrier
;
757 case ir_intrinsic_image_size
:
758 op
= nir_intrinsic_image_deref_size
;
760 case ir_intrinsic_image_samples
:
761 op
= nir_intrinsic_image_deref_samples
;
763 case ir_intrinsic_ssbo_store
:
764 op
= nir_intrinsic_store_ssbo
;
766 case ir_intrinsic_ssbo_load
:
767 op
= nir_intrinsic_load_ssbo
;
769 case ir_intrinsic_ssbo_atomic_add
:
770 op
= ir
->return_deref
->type
->is_integer_32_64()
771 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
773 case ir_intrinsic_ssbo_atomic_and
:
774 op
= nir_intrinsic_ssbo_atomic_and
;
776 case ir_intrinsic_ssbo_atomic_or
:
777 op
= nir_intrinsic_ssbo_atomic_or
;
779 case ir_intrinsic_ssbo_atomic_xor
:
780 op
= nir_intrinsic_ssbo_atomic_xor
;
782 case ir_intrinsic_ssbo_atomic_min
:
783 assert(ir
->return_deref
);
784 if (ir
->return_deref
->type
== glsl_type::int_type
)
785 op
= nir_intrinsic_ssbo_atomic_imin
;
786 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
787 op
= nir_intrinsic_ssbo_atomic_umin
;
788 else if (ir
->return_deref
->type
== glsl_type::float_type
)
789 op
= nir_intrinsic_ssbo_atomic_fmin
;
791 unreachable("Invalid type");
793 case ir_intrinsic_ssbo_atomic_max
:
794 assert(ir
->return_deref
);
795 if (ir
->return_deref
->type
== glsl_type::int_type
)
796 op
= nir_intrinsic_ssbo_atomic_imax
;
797 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
798 op
= nir_intrinsic_ssbo_atomic_umax
;
799 else if (ir
->return_deref
->type
== glsl_type::float_type
)
800 op
= nir_intrinsic_ssbo_atomic_fmax
;
802 unreachable("Invalid type");
804 case ir_intrinsic_ssbo_atomic_exchange
:
805 op
= nir_intrinsic_ssbo_atomic_exchange
;
807 case ir_intrinsic_ssbo_atomic_comp_swap
:
808 op
= ir
->return_deref
->type
->is_integer_32_64()
809 ? nir_intrinsic_ssbo_atomic_comp_swap
810 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
812 case ir_intrinsic_shader_clock
:
813 op
= nir_intrinsic_shader_clock
;
815 case ir_intrinsic_begin_invocation_interlock
:
816 op
= nir_intrinsic_begin_invocation_interlock
;
818 case ir_intrinsic_end_invocation_interlock
:
819 op
= nir_intrinsic_end_invocation_interlock
;
821 case ir_intrinsic_group_memory_barrier
:
822 op
= nir_intrinsic_group_memory_barrier
;
824 case ir_intrinsic_memory_barrier_atomic_counter
:
825 op
= nir_intrinsic_memory_barrier_atomic_counter
;
827 case ir_intrinsic_memory_barrier_buffer
:
828 op
= nir_intrinsic_memory_barrier_buffer
;
830 case ir_intrinsic_memory_barrier_image
:
831 op
= nir_intrinsic_memory_barrier_image
;
833 case ir_intrinsic_memory_barrier_shared
:
834 op
= nir_intrinsic_memory_barrier_shared
;
836 case ir_intrinsic_shared_load
:
837 op
= nir_intrinsic_load_shared
;
839 case ir_intrinsic_shared_store
:
840 op
= nir_intrinsic_store_shared
;
842 case ir_intrinsic_shared_atomic_add
:
843 op
= ir
->return_deref
->type
->is_integer_32_64()
844 ? nir_intrinsic_shared_atomic_add
845 : nir_intrinsic_shared_atomic_fadd
;
847 case ir_intrinsic_shared_atomic_and
:
848 op
= nir_intrinsic_shared_atomic_and
;
850 case ir_intrinsic_shared_atomic_or
:
851 op
= nir_intrinsic_shared_atomic_or
;
853 case ir_intrinsic_shared_atomic_xor
:
854 op
= nir_intrinsic_shared_atomic_xor
;
856 case ir_intrinsic_shared_atomic_min
:
857 assert(ir
->return_deref
);
858 if (ir
->return_deref
->type
== glsl_type::int_type
)
859 op
= nir_intrinsic_shared_atomic_imin
;
860 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
861 op
= nir_intrinsic_shared_atomic_umin
;
862 else if (ir
->return_deref
->type
== glsl_type::float_type
)
863 op
= nir_intrinsic_shared_atomic_fmin
;
865 unreachable("Invalid type");
867 case ir_intrinsic_shared_atomic_max
:
868 assert(ir
->return_deref
);
869 if (ir
->return_deref
->type
== glsl_type::int_type
)
870 op
= nir_intrinsic_shared_atomic_imax
;
871 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
872 op
= nir_intrinsic_shared_atomic_umax
;
873 else if (ir
->return_deref
->type
== glsl_type::float_type
)
874 op
= nir_intrinsic_shared_atomic_fmax
;
876 unreachable("Invalid type");
878 case ir_intrinsic_shared_atomic_exchange
:
879 op
= nir_intrinsic_shared_atomic_exchange
;
881 case ir_intrinsic_shared_atomic_comp_swap
:
882 op
= ir
->return_deref
->type
->is_integer_32_64()
883 ? nir_intrinsic_shared_atomic_comp_swap
884 : nir_intrinsic_shared_atomic_fcomp_swap
;
886 case ir_intrinsic_vote_any
:
887 op
= nir_intrinsic_vote_any
;
889 case ir_intrinsic_vote_all
:
890 op
= nir_intrinsic_vote_all
;
892 case ir_intrinsic_vote_eq
:
893 op
= nir_intrinsic_vote_ieq
;
895 case ir_intrinsic_ballot
:
896 op
= nir_intrinsic_ballot
;
898 case ir_intrinsic_read_invocation
:
899 op
= nir_intrinsic_read_invocation
;
901 case ir_intrinsic_read_first_invocation
:
902 op
= nir_intrinsic_read_first_invocation
;
905 unreachable("not reached");
908 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
909 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
912 case nir_intrinsic_atomic_counter_read_deref
:
913 case nir_intrinsic_atomic_counter_inc_deref
:
914 case nir_intrinsic_atomic_counter_pre_dec_deref
:
915 case nir_intrinsic_atomic_counter_add_deref
:
916 case nir_intrinsic_atomic_counter_min_deref
:
917 case nir_intrinsic_atomic_counter_max_deref
:
918 case nir_intrinsic_atomic_counter_and_deref
:
919 case nir_intrinsic_atomic_counter_or_deref
:
920 case nir_intrinsic_atomic_counter_xor_deref
:
921 case nir_intrinsic_atomic_counter_exchange_deref
:
922 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
923 /* Set the counter variable dereference. */
924 exec_node
*param
= ir
->actual_parameters
.get_head();
925 ir_dereference
*counter
= (ir_dereference
*)param
;
927 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
928 param
= param
->get_next();
930 /* Set the intrinsic destination. */
931 if (ir
->return_deref
) {
932 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
935 /* Set the intrinsic parameters. */
936 if (!param
->is_tail_sentinel()) {
938 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
939 param
= param
->get_next();
942 if (!param
->is_tail_sentinel()) {
944 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
945 param
= param
->get_next();
948 nir_builder_instr_insert(&b
, &instr
->instr
);
951 case nir_intrinsic_image_deref_load
:
952 case nir_intrinsic_image_deref_store
:
953 case nir_intrinsic_image_deref_atomic_add
:
954 case nir_intrinsic_image_deref_atomic_min
:
955 case nir_intrinsic_image_deref_atomic_max
:
956 case nir_intrinsic_image_deref_atomic_and
:
957 case nir_intrinsic_image_deref_atomic_or
:
958 case nir_intrinsic_image_deref_atomic_xor
:
959 case nir_intrinsic_image_deref_atomic_exchange
:
960 case nir_intrinsic_image_deref_atomic_comp_swap
:
961 case nir_intrinsic_image_deref_atomic_fadd
:
962 case nir_intrinsic_image_deref_samples
:
963 case nir_intrinsic_image_deref_size
: {
964 nir_ssa_undef_instr
*instr_undef
=
965 nir_ssa_undef_instr_create(shader
, 1, 32);
966 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
968 /* Set the image variable dereference. */
969 exec_node
*param
= ir
->actual_parameters
.get_head();
970 ir_dereference
*image
= (ir_dereference
*)param
;
971 const glsl_type
*type
=
972 image
->variable_referenced()->type
->without_array();
974 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
975 param
= param
->get_next();
977 /* Set the intrinsic destination. */
978 if (ir
->return_deref
) {
979 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
980 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
981 num_components
, 32, NULL
);
984 if (op
== nir_intrinsic_image_deref_size
) {
985 instr
->num_components
= instr
->dest
.ssa
.num_components
;
986 } else if (op
== nir_intrinsic_image_deref_load
||
987 op
== nir_intrinsic_image_deref_store
) {
988 instr
->num_components
= 4;
991 if (op
== nir_intrinsic_image_deref_size
||
992 op
== nir_intrinsic_image_deref_samples
) {
993 nir_builder_instr_insert(&b
, &instr
->instr
);
997 /* Set the address argument, extending the coordinate vector to four
1000 nir_ssa_def
*src_addr
=
1001 evaluate_rvalue((ir_dereference
*)param
);
1002 nir_ssa_def
*srcs
[4];
1004 for (int i
= 0; i
< 4; i
++) {
1005 if (i
< type
->coordinate_components())
1006 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1008 srcs
[i
] = &instr_undef
->def
;
1011 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1012 param
= param
->get_next();
1014 /* Set the sample argument, which is undefined for single-sample
1017 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1019 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1020 param
= param
->get_next();
1022 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1025 /* Set the intrinsic parameters. */
1026 if (!param
->is_tail_sentinel()) {
1028 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1029 param
= param
->get_next();
1032 if (!param
->is_tail_sentinel()) {
1034 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1035 param
= param
->get_next();
1037 nir_builder_instr_insert(&b
, &instr
->instr
);
1040 case nir_intrinsic_memory_barrier
:
1041 case nir_intrinsic_group_memory_barrier
:
1042 case nir_intrinsic_memory_barrier_atomic_counter
:
1043 case nir_intrinsic_memory_barrier_buffer
:
1044 case nir_intrinsic_memory_barrier_image
:
1045 case nir_intrinsic_memory_barrier_shared
:
1046 nir_builder_instr_insert(&b
, &instr
->instr
);
1048 case nir_intrinsic_shader_clock
:
1049 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1050 instr
->num_components
= 2;
1051 nir_builder_instr_insert(&b
, &instr
->instr
);
1053 case nir_intrinsic_begin_invocation_interlock
:
1054 nir_builder_instr_insert(&b
, &instr
->instr
);
1056 case nir_intrinsic_end_invocation_interlock
:
1057 nir_builder_instr_insert(&b
, &instr
->instr
);
1059 case nir_intrinsic_store_ssbo
: {
1060 exec_node
*param
= ir
->actual_parameters
.get_head();
1061 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1063 param
= param
->get_next();
1064 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1066 param
= param
->get_next();
1067 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1069 param
= param
->get_next();
1070 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1073 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1074 if (val
->type
->is_boolean())
1075 nir_val
= nir_b2i32(&b
, nir_val
);
1077 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1078 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1079 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1080 intrinsic_set_std430_align(instr
, val
->type
);
1081 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1082 instr
->num_components
= val
->type
->vector_elements
;
1084 nir_builder_instr_insert(&b
, &instr
->instr
);
1087 case nir_intrinsic_load_ssbo
: {
1088 exec_node
*param
= ir
->actual_parameters
.get_head();
1089 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1091 param
= param
->get_next();
1092 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1094 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1095 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1097 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1098 instr
->num_components
= type
->vector_elements
;
1099 intrinsic_set_std430_align(instr
, type
);
1101 /* Setup destination register */
1102 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1103 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1104 type
->vector_elements
, bit_size
, NULL
);
1106 /* Insert the created nir instruction now since in the case of boolean
1107 * result we will need to emit another instruction after it
1109 nir_builder_instr_insert(&b
, &instr
->instr
);
1112 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1113 * consider a true boolean to be ~0. Fix this up with a != 0
1116 if (type
->is_boolean())
1117 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1120 case nir_intrinsic_ssbo_atomic_add
:
1121 case nir_intrinsic_ssbo_atomic_imin
:
1122 case nir_intrinsic_ssbo_atomic_umin
:
1123 case nir_intrinsic_ssbo_atomic_imax
:
1124 case nir_intrinsic_ssbo_atomic_umax
:
1125 case nir_intrinsic_ssbo_atomic_and
:
1126 case nir_intrinsic_ssbo_atomic_or
:
1127 case nir_intrinsic_ssbo_atomic_xor
:
1128 case nir_intrinsic_ssbo_atomic_exchange
:
1129 case nir_intrinsic_ssbo_atomic_comp_swap
:
1130 case nir_intrinsic_ssbo_atomic_fadd
:
1131 case nir_intrinsic_ssbo_atomic_fmin
:
1132 case nir_intrinsic_ssbo_atomic_fmax
:
1133 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1134 int param_count
= ir
->actual_parameters
.length();
1135 assert(param_count
== 3 || param_count
== 4);
1138 exec_node
*param
= ir
->actual_parameters
.get_head();
1139 ir_instruction
*inst
= (ir_instruction
*) param
;
1140 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1143 param
= param
->get_next();
1144 inst
= (ir_instruction
*) param
;
1145 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1147 /* data1 parameter (this is always present) */
1148 param
= param
->get_next();
1149 inst
= (ir_instruction
*) param
;
1150 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1152 /* data2 parameter (only with atomic_comp_swap) */
1153 if (param_count
== 4) {
1154 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1155 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1156 param
= param
->get_next();
1157 inst
= (ir_instruction
*) param
;
1158 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1162 assert(ir
->return_deref
);
1163 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1164 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1165 nir_builder_instr_insert(&b
, &instr
->instr
);
1168 case nir_intrinsic_load_shared
: {
1169 exec_node
*param
= ir
->actual_parameters
.get_head();
1170 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1172 nir_intrinsic_set_base(instr
, 0);
1173 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1175 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1176 instr
->num_components
= type
->vector_elements
;
1177 intrinsic_set_std430_align(instr
, type
);
1179 /* Setup destination register */
1180 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1181 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1182 type
->vector_elements
, bit_size
, NULL
);
1184 nir_builder_instr_insert(&b
, &instr
->instr
);
1186 /* The value in shared memory is a 32-bit value */
1187 if (type
->is_boolean())
1188 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1191 case nir_intrinsic_store_shared
: {
1192 exec_node
*param
= ir
->actual_parameters
.get_head();
1193 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1195 param
= param
->get_next();
1196 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1198 param
= param
->get_next();
1199 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1202 nir_intrinsic_set_base(instr
, 0);
1203 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1205 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1207 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1208 /* The value in shared memory is a 32-bit value */
1209 if (val
->type
->is_boolean())
1210 nir_val
= nir_b2i32(&b
, nir_val
);
1212 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1213 instr
->num_components
= val
->type
->vector_elements
;
1214 intrinsic_set_std430_align(instr
, val
->type
);
1216 nir_builder_instr_insert(&b
, &instr
->instr
);
1219 case nir_intrinsic_shared_atomic_add
:
1220 case nir_intrinsic_shared_atomic_imin
:
1221 case nir_intrinsic_shared_atomic_umin
:
1222 case nir_intrinsic_shared_atomic_imax
:
1223 case nir_intrinsic_shared_atomic_umax
:
1224 case nir_intrinsic_shared_atomic_and
:
1225 case nir_intrinsic_shared_atomic_or
:
1226 case nir_intrinsic_shared_atomic_xor
:
1227 case nir_intrinsic_shared_atomic_exchange
:
1228 case nir_intrinsic_shared_atomic_comp_swap
:
1229 case nir_intrinsic_shared_atomic_fadd
:
1230 case nir_intrinsic_shared_atomic_fmin
:
1231 case nir_intrinsic_shared_atomic_fmax
:
1232 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1233 int param_count
= ir
->actual_parameters
.length();
1234 assert(param_count
== 2 || param_count
== 3);
1237 exec_node
*param
= ir
->actual_parameters
.get_head();
1238 ir_instruction
*inst
= (ir_instruction
*) param
;
1239 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1241 /* data1 parameter (this is always present) */
1242 param
= param
->get_next();
1243 inst
= (ir_instruction
*) param
;
1244 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1246 /* data2 parameter (only with atomic_comp_swap) */
1247 if (param_count
== 3) {
1248 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1249 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1250 param
= param
->get_next();
1251 inst
= (ir_instruction
*) param
;
1253 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1257 assert(ir
->return_deref
);
1258 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1259 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1260 ir
->return_deref
->type
->vector_elements
,
1262 nir_builder_instr_insert(&b
, &instr
->instr
);
1265 case nir_intrinsic_vote_any
:
1266 case nir_intrinsic_vote_all
:
1267 case nir_intrinsic_vote_ieq
: {
1268 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1269 instr
->num_components
= 1;
1271 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1272 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1274 nir_builder_instr_insert(&b
, &instr
->instr
);
1278 case nir_intrinsic_ballot
: {
1279 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1280 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1281 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1283 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1284 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1286 nir_builder_instr_insert(&b
, &instr
->instr
);
1289 case nir_intrinsic_read_invocation
: {
1290 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1291 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1292 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1294 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1295 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1297 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1298 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1300 nir_builder_instr_insert(&b
, &instr
->instr
);
1303 case nir_intrinsic_read_first_invocation
: {
1304 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1305 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1306 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1308 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1309 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1311 nir_builder_instr_insert(&b
, &instr
->instr
);
1315 unreachable("not reached");
1318 if (ir
->return_deref
)
1319 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1324 struct hash_entry
*entry
=
1325 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1327 nir_function
*callee
= (nir_function
*) entry
->data
;
1329 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1332 nir_deref_instr
*ret_deref
= NULL
;
1333 if (ir
->return_deref
) {
1334 nir_variable
*ret_tmp
=
1335 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1337 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1338 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1341 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1342 actual_node
, &ir
->actual_parameters
) {
1343 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1344 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1346 if (sig_param
->data
.mode
== ir_var_function_out
) {
1347 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1348 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1349 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1350 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1351 nir_src src
= nir_src_for_ssa(val
);
1353 nir_src_copy(&call
->params
[i
], &src
, call
);
1354 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1355 unreachable("unimplemented: inout parameters");
1361 nir_builder_instr_insert(&b
, &call
->instr
);
1363 if (ir
->return_deref
)
1364 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1368 nir_visitor::visit(ir_assignment
*ir
)
1370 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1372 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1373 ir
->lhs
->variable_referenced()->data
.precise
;
1375 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1376 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1377 if (ir
->condition
) {
1378 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1379 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1380 nir_pop_if(&b
, NULL
);
1382 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1387 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1389 ir
->lhs
->accept(this);
1390 nir_deref_instr
*lhs_deref
= this->deref
;
1391 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1393 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1394 /* GLSL IR will give us the input to the write-masked assignment in a
1395 * single packed vector. So, for example, if the writemask is xzw, then
1396 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1400 unsigned component
= 0;
1401 for (unsigned i
= 0; i
< 4; i
++) {
1402 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1404 src
= nir_swizzle(&b
, src
, swiz
, num_components
, false);
1407 if (ir
->condition
) {
1408 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1409 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1410 nir_pop_if(&b
, NULL
);
1412 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1417 * Given an instruction, returns a pointer to its destination or NULL if there
1418 * is no destination.
1420 * Note that this only handles instructions we generate at this level.
1423 get_instr_dest(nir_instr
*instr
)
1425 nir_alu_instr
*alu_instr
;
1426 nir_intrinsic_instr
*intrinsic_instr
;
1427 nir_tex_instr
*tex_instr
;
1429 switch (instr
->type
) {
1430 case nir_instr_type_alu
:
1431 alu_instr
= nir_instr_as_alu(instr
);
1432 return &alu_instr
->dest
.dest
;
1434 case nir_instr_type_intrinsic
:
1435 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1436 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1437 return &intrinsic_instr
->dest
;
1441 case nir_instr_type_tex
:
1442 tex_instr
= nir_instr_as_tex(instr
);
1443 return &tex_instr
->dest
;
1446 unreachable("not reached");
1453 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1456 nir_dest
*dest
= get_instr_dest(instr
);
1459 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1461 nir_builder_instr_insert(&b
, instr
);
1464 assert(dest
->is_ssa
);
1465 this->result
= &dest
->ssa
;
1470 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1473 if (ir
->as_dereference() || ir
->as_constant()) {
1475 * A dereference is being used on the right hand side, which means we
1476 * must emit a variable load.
1479 this->result
= nir_load_deref(&b
, this->deref
);
1482 return this->result
;
1486 type_is_float(glsl_base_type type
)
1488 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1489 type
== GLSL_TYPE_FLOAT16
;
1493 type_is_signed(glsl_base_type type
)
1495 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1496 type
== GLSL_TYPE_INT16
;
1500 type_is_int(glsl_base_type type
)
1502 return type
== GLSL_TYPE_UINT
|| type
== GLSL_TYPE_INT
||
1503 type
== GLSL_TYPE_UINT8
|| type
== GLSL_TYPE_INT8
||
1504 type
== GLSL_TYPE_UINT16
|| type
== GLSL_TYPE_INT16
||
1505 type
== GLSL_TYPE_UINT64
|| type
== GLSL_TYPE_INT64
;
1509 nir_visitor::visit(ir_expression
*ir
)
1511 /* Some special cases */
1512 switch (ir
->operation
) {
1513 case ir_binop_ubo_load
: {
1514 nir_intrinsic_instr
*load
=
1515 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1516 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1517 glsl_get_bit_size(ir
->type
);
1518 load
->num_components
= ir
->type
->vector_elements
;
1519 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1520 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1521 intrinsic_set_std430_align(load
, ir
->type
);
1522 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1525 * In UBO's, a true boolean value is any non-zero value, but we consider
1526 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1529 if (ir
->type
->is_boolean())
1530 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1535 case ir_unop_interpolate_at_centroid
:
1536 case ir_binop_interpolate_at_offset
:
1537 case ir_binop_interpolate_at_sample
: {
1538 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1539 ir_swizzle
*swizzle
= NULL
;
1541 /* the api does not allow a swizzle here, but the varying packing code
1542 * may have pushed one into here.
1544 swizzle
= ir
->operands
[0]->as_swizzle();
1546 deref
= swizzle
->val
->as_dereference();
1550 deref
->accept(this);
1552 nir_intrinsic_op op
;
1553 if (this->deref
->mode
== nir_var_shader_in
) {
1554 switch (ir
->operation
) {
1555 case ir_unop_interpolate_at_centroid
:
1556 op
= nir_intrinsic_interp_deref_at_centroid
;
1558 case ir_binop_interpolate_at_offset
:
1559 op
= nir_intrinsic_interp_deref_at_offset
;
1561 case ir_binop_interpolate_at_sample
:
1562 op
= nir_intrinsic_interp_deref_at_sample
;
1565 unreachable("Invalid interpolation intrinsic");
1568 /* This case can happen if the vertex shader does not write the
1569 * given varying. In this case, the linker will lower it to a
1570 * global variable. Since interpolating a variable makes no
1571 * sense, we'll just turn it into a load which will probably
1572 * eventually end up as an SSA definition.
1574 assert(this->deref
->mode
== nir_var_shader_temp
);
1575 op
= nir_intrinsic_load_deref
;
1578 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1579 intrin
->num_components
= deref
->type
->vector_elements
;
1580 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1582 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1583 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1584 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1586 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1587 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1590 unsigned swiz
[4] = {
1591 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1594 result
= nir_swizzle(&b
, result
, swiz
,
1595 swizzle
->type
->vector_elements
, false);
1605 nir_ssa_def
*srcs
[4];
1606 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1607 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1609 glsl_base_type types
[4];
1610 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1611 if (supports_ints
|| !type_is_int(ir
->operands
[i
]->type
->base_type
))
1612 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1614 types
[i
] = GLSL_TYPE_FLOAT
;
1616 glsl_base_type out_type
;
1617 if (supports_ints
|| !type_is_int(ir
->type
->base_type
))
1618 out_type
= ir
->type
->base_type
;
1620 out_type
= GLSL_TYPE_FLOAT
;
1622 switch (ir
->operation
) {
1623 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1624 case ir_unop_logic_not
:
1625 result
= nir_inot(&b
, srcs
[0]);
1628 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1629 : nir_ineg(&b
, srcs
[0]);
1632 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1633 : nir_iabs(&b
, srcs
[0]);
1635 case ir_unop_saturate
:
1636 assert(type_is_float(types
[0]));
1637 result
= nir_fsat(&b
, srcs
[0]);
1640 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1641 : nir_isign(&b
, srcs
[0]);
1643 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1644 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1645 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1646 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1647 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1648 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1649 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1651 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1654 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1657 result
= nir_b2f32(&b
, srcs
[0]);
1660 result
= supports_ints
? nir_f2i32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1663 result
= supports_ints
? nir_f2u32(&b
, srcs
[0]) : nir_ftrunc(&b
, srcs
[0]);
1695 case ir_unop_i642u64
:
1696 case ir_unop_u642i64
: {
1697 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1698 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1699 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1700 nir_rounding_mode_undef
),
1701 srcs
[0], NULL
, NULL
, NULL
);
1702 /* b2i and b2f don't have fixed bit-size versions so the builder will
1703 * just assume 32 and we have to fix it up here.
1705 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1709 case ir_unop_bitcast_i2f
:
1710 case ir_unop_bitcast_f2i
:
1711 case ir_unop_bitcast_u2f
:
1712 case ir_unop_bitcast_f2u
:
1713 case ir_unop_bitcast_i642d
:
1714 case ir_unop_bitcast_d2i64
:
1715 case ir_unop_bitcast_u642d
:
1716 case ir_unop_bitcast_d2u64
:
1717 case ir_unop_subroutine_to_int
:
1719 result
= nir_imov(&b
, srcs
[0]);
1721 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1722 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1723 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1724 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1725 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1726 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1727 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1728 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1729 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1730 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1731 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1732 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1733 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1734 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1735 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1736 case ir_unop_pack_snorm_2x16
:
1737 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1739 case ir_unop_pack_snorm_4x8
:
1740 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1742 case ir_unop_pack_unorm_2x16
:
1743 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1745 case ir_unop_pack_unorm_4x8
:
1746 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1748 case ir_unop_pack_half_2x16
:
1749 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1751 case ir_unop_unpack_snorm_2x16
:
1752 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1754 case ir_unop_unpack_snorm_4x8
:
1755 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1757 case ir_unop_unpack_unorm_2x16
:
1758 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1760 case ir_unop_unpack_unorm_4x8
:
1761 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1763 case ir_unop_unpack_half_2x16
:
1764 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1766 case ir_unop_pack_sampler_2x32
:
1767 case ir_unop_pack_image_2x32
:
1768 case ir_unop_pack_double_2x32
:
1769 case ir_unop_pack_int_2x32
:
1770 case ir_unop_pack_uint_2x32
:
1771 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1773 case ir_unop_unpack_sampler_2x32
:
1774 case ir_unop_unpack_image_2x32
:
1775 case ir_unop_unpack_double_2x32
:
1776 case ir_unop_unpack_int_2x32
:
1777 case ir_unop_unpack_uint_2x32
:
1778 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1780 case ir_unop_bitfield_reverse
:
1781 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1783 case ir_unop_bit_count
:
1784 result
= nir_bit_count(&b
, srcs
[0]);
1786 case ir_unop_find_msb
:
1788 case GLSL_TYPE_UINT
:
1789 result
= nir_ufind_msb(&b
, srcs
[0]);
1792 result
= nir_ifind_msb(&b
, srcs
[0]);
1795 unreachable("Invalid type for findMSB()");
1798 case ir_unop_find_lsb
:
1799 result
= nir_find_lsb(&b
, srcs
[0]);
1803 switch (ir
->type
->vector_elements
) {
1805 switch (ir
->operands
[0]->type
->vector_elements
) {
1806 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1807 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1808 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1809 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1810 default: unreachable("not reached");
1814 switch (ir
->operands
[0]->type
->vector_elements
) {
1815 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1816 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1817 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1818 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1819 default: unreachable("not reached");
1823 switch (ir
->operands
[0]->type
->vector_elements
) {
1824 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1825 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1826 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1827 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1828 default: unreachable("not reached");
1832 switch (ir
->operands
[0]->type
->vector_elements
) {
1833 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1834 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1835 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1836 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1837 default: unreachable("not reached");
1841 unreachable("not reached");
1844 case ir_unop_get_buffer_size
: {
1845 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1847 nir_intrinsic_get_buffer_size
);
1848 load
->num_components
= ir
->type
->vector_elements
;
1849 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1850 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1851 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1856 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1857 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1860 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1861 : nir_isub(&b
, srcs
[0], srcs
[1]);
1864 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1865 : nir_imul(&b
, srcs
[0], srcs
[1]);
1868 if (type_is_float(out_type
))
1869 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1870 else if (type_is_signed(out_type
))
1871 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1873 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1876 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1877 : nir_umod(&b
, srcs
[0], srcs
[1]);
1880 if (type_is_float(out_type
))
1881 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1882 else if (type_is_signed(out_type
))
1883 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1885 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1888 if (type_is_float(out_type
))
1889 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1890 else if (type_is_signed(out_type
))
1891 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1893 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1895 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1896 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1897 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1898 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1899 case ir_binop_logic_and
:
1900 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
1902 case ir_binop_logic_or
:
1903 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
1905 case ir_binop_logic_xor
:
1906 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
1908 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1909 case ir_binop_rshift
:
1910 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1911 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1913 case ir_binop_imul_high
:
1914 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1915 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1917 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1918 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1920 if (type_is_float(types
[0]))
1921 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1922 else if (type_is_signed(types
[0]))
1923 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1925 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1927 case ir_binop_gequal
:
1928 if (type_is_float(types
[0]))
1929 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1930 else if (type_is_signed(types
[0]))
1931 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1933 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1935 case ir_binop_equal
:
1936 if (type_is_float(types
[0]))
1937 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1939 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1941 case ir_binop_nequal
:
1942 if (type_is_float(types
[0]))
1943 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1945 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1947 case ir_binop_all_equal
:
1948 if (type_is_float(types
[0])) {
1949 switch (ir
->operands
[0]->type
->vector_elements
) {
1950 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1951 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1952 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1953 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1955 unreachable("not reached");
1958 switch (ir
->operands
[0]->type
->vector_elements
) {
1959 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1960 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1961 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1962 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1964 unreachable("not reached");
1968 case ir_binop_any_nequal
:
1969 if (type_is_float(types
[0])) {
1970 switch (ir
->operands
[0]->type
->vector_elements
) {
1971 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1972 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1973 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1974 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1976 unreachable("not reached");
1979 switch (ir
->operands
[0]->type
->vector_elements
) {
1980 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1981 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1982 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1983 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1985 unreachable("not reached");
1990 switch (ir
->operands
[0]->type
->vector_elements
) {
1991 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
1992 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
1993 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
1995 unreachable("not reached");
1998 case ir_binop_vector_extract
: {
1999 result
= nir_channel(&b
, srcs
[0], 0);
2000 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2001 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2002 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2008 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2010 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2013 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2016 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2018 case ir_triop_bitfield_extract
:
2019 result
= (out_type
== GLSL_TYPE_INT
) ?
2020 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2021 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2023 case ir_quadop_bitfield_insert
:
2024 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2026 case ir_quadop_vector
:
2027 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2031 unreachable("not reached");
2036 nir_visitor::visit(ir_swizzle
*ir
)
2038 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2039 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2040 ir
->type
->vector_elements
, false);
2044 nir_visitor::visit(ir_texture
*ir
)
2051 num_srcs
= 1; /* coordinate */
2056 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2057 num_srcs
= 2; /* coordinate, bias/lod */
2061 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2067 if (ir
->lod_info
.lod
!= NULL
)
2068 num_srcs
= 2; /* coordinate, lod */
2070 num_srcs
= 1; /* coordinate */
2074 op
= nir_texop_txf_ms
;
2075 num_srcs
= 2; /* coordinate, sample_index */
2080 if (ir
->lod_info
.lod
!= NULL
)
2081 num_srcs
= 1; /* lod */
2088 num_srcs
= 1; /* coordinate */
2093 num_srcs
= 1; /* coordinate */
2096 case ir_query_levels
:
2097 op
= nir_texop_query_levels
;
2101 case ir_texture_samples
:
2102 op
= nir_texop_texture_samples
;
2106 case ir_samples_identical
:
2107 op
= nir_texop_samples_identical
;
2108 num_srcs
= 1; /* coordinate */
2112 unreachable("not reached");
2115 if (ir
->projector
!= NULL
)
2117 if (ir
->shadow_comparator
!= NULL
)
2119 if (ir
->offset
!= NULL
)
2122 /* Add one for the texture deref */
2125 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2128 instr
->sampler_dim
=
2129 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2130 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2131 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2132 if (instr
->is_shadow
)
2133 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2134 switch (ir
->type
->base_type
) {
2135 case GLSL_TYPE_FLOAT
:
2136 instr
->dest_type
= nir_type_float
;
2139 instr
->dest_type
= nir_type_int
;
2141 case GLSL_TYPE_BOOL
:
2142 case GLSL_TYPE_UINT
:
2143 instr
->dest_type
= nir_type_uint
;
2146 unreachable("not reached");
2149 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2150 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2151 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2152 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2153 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2155 unsigned src_number
= 2;
2157 if (ir
->coordinate
!= NULL
) {
2158 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2159 instr
->src
[src_number
].src
=
2160 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2161 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2165 if (ir
->projector
!= NULL
) {
2166 instr
->src
[src_number
].src
=
2167 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2168 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2172 if (ir
->shadow_comparator
!= NULL
) {
2173 instr
->src
[src_number
].src
=
2174 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2175 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2179 if (ir
->offset
!= NULL
) {
2180 /* we don't support multiple offsets yet */
2181 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2183 instr
->src
[src_number
].src
=
2184 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2185 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2191 instr
->src
[src_number
].src
=
2192 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2193 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2200 if (ir
->lod_info
.lod
!= NULL
) {
2201 instr
->src
[src_number
].src
=
2202 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2203 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2209 instr
->src
[src_number
].src
=
2210 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2211 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2213 instr
->src
[src_number
].src
=
2214 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2215 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2220 instr
->src
[src_number
].src
=
2221 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2222 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2227 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2234 assert(src_number
== num_srcs
);
2236 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2237 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2241 nir_visitor::visit(ir_constant
*ir
)
2244 * We don't know if this variable is an array or struct that gets
2245 * dereferenced, so do the safe thing an make it a variable with a
2246 * constant initializer and return a dereference.
2250 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2251 var
->data
.read_only
= true;
2252 var
->constant_initializer
= constant_copy(ir
, var
);
2254 this->deref
= nir_build_deref_var(&b
, var
);
2258 nir_visitor::visit(ir_dereference_variable
*ir
)
2260 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2261 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2263 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2264 if (param
== ir
->variable_referenced()) {
2270 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2271 nir_var_function_temp
, ir
->type
, 0);
2275 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2277 struct hash_entry
*entry
=
2278 _mesa_hash_table_search(this->var_table
, ir
->var
);
2280 nir_variable
*var
= (nir_variable
*) entry
->data
;
2282 this->deref
= nir_build_deref_var(&b
, var
);
2286 nir_visitor::visit(ir_dereference_record
*ir
)
2288 ir
->record
->accept(this);
2290 int field_index
= ir
->field_idx
;
2291 assert(field_index
>= 0);
2293 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2297 nir_visitor::visit(ir_dereference_array
*ir
)
2299 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2301 ir
->array
->accept(this);
2303 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2307 nir_visitor::visit(ir_barrier
*)
2309 nir_intrinsic_instr
*instr
=
2310 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2311 nir_builder_instr_insert(&b
, &instr
->instr
);