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 "float64_glsl.h"
29 #include "glsl_to_nir.h"
30 #include "ir_visitor.h"
31 #include "ir_hierarchical_visitor.h"
33 #include "ir_optimization.h"
35 #include "compiler/nir/nir_control_flow.h"
36 #include "compiler/nir/nir_builder.h"
37 #include "compiler/nir/nir_deref.h"
38 #include "main/errors.h"
39 #include "main/imports.h"
40 #include "main/mtypes.h"
41 #include "main/shaderobj.h"
42 #include "util/u_math.h"
45 * pass to lower GLSL IR to NIR
47 * This will lower variable dereferences to loads/stores of corresponding
48 * variables in NIR - the variables will be converted to registers in a later
54 class nir_visitor
: public ir_visitor
57 nir_visitor(gl_context
*ctx
, nir_shader
*shader
);
60 virtual void visit(ir_variable
*);
61 virtual void visit(ir_function
*);
62 virtual void visit(ir_function_signature
*);
63 virtual void visit(ir_loop
*);
64 virtual void visit(ir_if
*);
65 virtual void visit(ir_discard
*);
66 virtual void visit(ir_loop_jump
*);
67 virtual void visit(ir_return
*);
68 virtual void visit(ir_call
*);
69 virtual void visit(ir_assignment
*);
70 virtual void visit(ir_emit_vertex
*);
71 virtual void visit(ir_end_primitive
*);
72 virtual void visit(ir_expression
*);
73 virtual void visit(ir_swizzle
*);
74 virtual void visit(ir_texture
*);
75 virtual void visit(ir_constant
*);
76 virtual void visit(ir_dereference_variable
*);
77 virtual void visit(ir_dereference_record
*);
78 virtual void visit(ir_dereference_array
*);
79 virtual void visit(ir_barrier
*);
81 void create_function(ir_function_signature
*ir
);
84 void add_instr(nir_instr
*instr
, unsigned num_components
, unsigned bit_size
);
85 nir_ssa_def
*evaluate_rvalue(ir_rvalue
*ir
);
87 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
**srcs
);
88 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
);
89 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
91 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
92 nir_ssa_def
*src2
, nir_ssa_def
*src3
);
97 nir_function_impl
*impl
;
99 nir_ssa_def
*result
; /* result of the expression tree last visited */
101 nir_deref_instr
*evaluate_deref(ir_instruction
*ir
);
103 nir_constant
*constant_copy(ir_constant
*ir
, void *mem_ctx
);
105 /* most recent deref instruction created */
106 nir_deref_instr
*deref
;
108 /* whether the IR we're operating on is per-function or global */
111 ir_function_signature
*sig
;
113 /* map of ir_variable -> nir_variable */
114 struct hash_table
*var_table
;
116 /* map of ir_function_signature -> nir_function_overload */
117 struct hash_table
*overload_table
;
121 * This visitor runs before the main visitor, calling create_function() for
122 * each function so that the main visitor can resolve forward references in
126 class nir_function_visitor
: public ir_hierarchical_visitor
129 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
132 virtual ir_visitor_status
visit_enter(ir_function
*);
135 nir_visitor
*visitor
;
138 /* glsl_to_nir can only handle converting certain function paramaters
139 * to NIR. This visitor checks for parameters it can't currently handle.
141 class ir_function_param_visitor
: public ir_hierarchical_visitor
144 ir_function_param_visitor()
149 virtual ir_visitor_status
visit_enter(ir_function_signature
*ir
)
152 if (ir
->is_intrinsic())
153 return visit_continue
;
155 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
156 if (!param
->type
->is_vector() || !param
->type
->is_scalar()) {
161 if (param
->data
.mode
== ir_var_function_inout
) {
167 return visit_continue
;
173 } /* end of anonymous namespace */
177 has_unsupported_function_param(exec_list
*ir
)
179 ir_function_param_visitor visitor
;
180 visit_list_elements(&visitor
, ir
);
181 return visitor
.unsupported
;
185 glsl_to_nir(struct gl_context
*ctx
,
186 const struct gl_shader_program
*shader_prog
,
187 gl_shader_stage stage
,
188 const nir_shader_compiler_options
*options
)
190 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
192 const struct gl_shader_compiler_options
*gl_options
=
193 &ctx
->Const
.ShaderCompilerOptions
[stage
];
195 /* glsl_to_nir can only handle converting certain function paramaters
196 * to NIR. If we find something we can't handle then we get the GLSL IR
197 * opts to remove it before we continue on.
199 * TODO: add missing glsl ir to nir support and remove this loop.
201 while (has_unsupported_function_param(sh
->ir
)) {
202 do_common_optimization(sh
->ir
, true, true, gl_options
,
203 ctx
->Const
.NativeIntegers
);
206 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
209 nir_visitor
v1(ctx
, shader
);
210 nir_function_visitor
v2(&v1
);
212 visit_exec_list(sh
->ir
, &v1
);
214 nir_validate_shader(shader
, "after glsl to nir, before function inline");
216 /* We have to lower away local constant initializers right before we
217 * inline functions. That way they get properly initialized at the top
218 * of the function and not at the top of its caller.
220 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
221 nir_lower_returns(shader
);
222 nir_inline_functions(shader
);
223 nir_opt_deref(shader
);
225 nir_validate_shader(shader
, "after function inlining and return lowering");
227 /* Now that we have inlined everything remove all of the functions except
230 foreach_list_typed_safe(nir_function
, function
, node
, &(shader
)->functions
){
231 if (strcmp("main", function
->name
) != 0) {
232 exec_node_remove(&function
->node
);
236 /* Remap the locations to slots so those requiring two slots will occupy
237 * two locations. For instance, if we have in the IR code a dvec3 attr0 in
238 * location 0 and vec4 attr1 in location 1, in NIR attr0 will use
239 * locations/slots 0 and 1, and attr1 will use location/slot 2 */
240 if (shader
->info
.stage
== MESA_SHADER_VERTEX
)
241 nir_remap_dual_slot_attributes(shader
, &sh
->Program
->DualSlotInputs
);
243 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
244 if (shader_prog
->Label
)
245 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
247 /* Check for transform feedback varyings specified via the API */
248 shader
->info
.has_transform_feedback_varyings
=
249 shader_prog
->TransformFeedback
.NumVarying
> 0;
251 /* Check for transform feedback varyings specified in the Shader */
252 if (shader_prog
->last_vert_prog
)
253 shader
->info
.has_transform_feedback_varyings
|=
254 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
256 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
) {
257 shader
->info
.fs
.pixel_center_integer
= sh
->Program
->info
.fs
.pixel_center_integer
;
258 shader
->info
.fs
.origin_upper_left
= sh
->Program
->info
.fs
.origin_upper_left
;
264 nir_visitor::nir_visitor(gl_context
*ctx
, nir_shader
*shader
)
266 this->supports_std430
= ctx
->Const
.UseSTD430AsDefaultPacking
;
267 this->shader
= shader
;
268 this->is_global
= true;
269 this->var_table
= _mesa_pointer_hash_table_create(NULL
);
270 this->overload_table
= _mesa_pointer_hash_table_create(NULL
);
275 memset(&this->b
, 0, sizeof(this->b
));
278 nir_visitor::~nir_visitor()
280 _mesa_hash_table_destroy(this->var_table
, NULL
);
281 _mesa_hash_table_destroy(this->overload_table
, NULL
);
285 nir_visitor::evaluate_deref(ir_instruction
*ir
)
292 nir_visitor::constant_copy(ir_constant
*ir
, void *mem_ctx
)
297 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
299 const unsigned rows
= ir
->type
->vector_elements
;
300 const unsigned cols
= ir
->type
->matrix_columns
;
303 ret
->num_elements
= 0;
304 switch (ir
->type
->base_type
) {
306 /* Only float base types can be matrices. */
309 for (unsigned r
= 0; r
< rows
; r
++)
310 ret
->values
[r
].u32
= ir
->value
.u
[r
];
315 /* Only float base types can be matrices. */
318 for (unsigned r
= 0; r
< rows
; r
++)
319 ret
->values
[r
].i32
= ir
->value
.i
[r
];
323 case GLSL_TYPE_FLOAT
:
324 case GLSL_TYPE_DOUBLE
:
326 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*, cols
);
327 ret
->num_elements
= cols
;
328 for (unsigned c
= 0; c
< cols
; c
++) {
329 nir_constant
*col_const
= rzalloc(mem_ctx
, nir_constant
);
330 col_const
->num_elements
= 0;
331 switch (ir
->type
->base_type
) {
332 case GLSL_TYPE_FLOAT
:
333 for (unsigned r
= 0; r
< rows
; r
++)
334 col_const
->values
[r
].f32
= ir
->value
.f
[c
* rows
+ r
];
337 case GLSL_TYPE_DOUBLE
:
338 for (unsigned r
= 0; r
< rows
; r
++)
339 col_const
->values
[r
].f64
= ir
->value
.d
[c
* rows
+ r
];
343 unreachable("Cannot get here from the first level switch");
345 ret
->elements
[c
] = col_const
;
348 switch (ir
->type
->base_type
) {
349 case GLSL_TYPE_FLOAT
:
350 for (unsigned r
= 0; r
< rows
; r
++)
351 ret
->values
[r
].f32
= ir
->value
.f
[r
];
354 case GLSL_TYPE_DOUBLE
:
355 for (unsigned r
= 0; r
< rows
; r
++)
356 ret
->values
[r
].f64
= ir
->value
.d
[r
];
360 unreachable("Cannot get here from the first level switch");
365 case GLSL_TYPE_UINT64
:
366 /* Only float base types can be matrices. */
369 for (unsigned r
= 0; r
< rows
; r
++)
370 ret
->values
[r
].u64
= ir
->value
.u64
[r
];
373 case GLSL_TYPE_INT64
:
374 /* Only float base types can be matrices. */
377 for (unsigned r
= 0; r
< rows
; r
++)
378 ret
->values
[r
].i64
= ir
->value
.i64
[r
];
382 /* Only float base types can be matrices. */
385 for (unsigned r
= 0; r
< rows
; r
++)
386 ret
->values
[r
].b
= ir
->value
.b
[r
];
390 case GLSL_TYPE_STRUCT
:
391 case GLSL_TYPE_ARRAY
:
392 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
394 ret
->num_elements
= ir
->type
->length
;
396 for (i
= 0; i
< ir
->type
->length
; i
++)
397 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
401 unreachable("not reached");
407 static const glsl_type
*
408 wrap_type_in_array(const glsl_type
*elem_type
, const glsl_type
*array_type
)
410 if (!array_type
->is_array())
413 elem_type
= wrap_type_in_array(elem_type
, array_type
->fields
.array
);
415 return glsl_type::get_array_instance(elem_type
, array_type
->length
);
419 nir_visitor::visit(ir_variable
*ir
)
421 /* TODO: In future we should switch to using the NIR lowering pass but for
422 * now just ignore these variables as GLSL IR should have lowered them.
423 * Anything remaining are just dead vars that weren't cleaned up.
425 if (ir
->data
.mode
== ir_var_shader_shared
)
428 /* FINISHME: inout parameters */
429 assert(ir
->data
.mode
!= ir_var_function_inout
);
431 if (ir
->data
.mode
== ir_var_function_out
)
434 nir_variable
*var
= rzalloc(shader
, nir_variable
);
435 var
->type
= ir
->type
;
436 var
->name
= ralloc_strdup(var
, ir
->name
);
438 var
->data
.always_active_io
= ir
->data
.always_active_io
;
439 var
->data
.read_only
= ir
->data
.read_only
;
440 var
->data
.centroid
= ir
->data
.centroid
;
441 var
->data
.sample
= ir
->data
.sample
;
442 var
->data
.patch
= ir
->data
.patch
;
443 var
->data
.invariant
= ir
->data
.invariant
;
444 var
->data
.location
= ir
->data
.location
;
445 var
->data
.stream
= ir
->data
.stream
;
446 var
->data
.compact
= false;
448 switch(ir
->data
.mode
) {
450 case ir_var_temporary
:
452 var
->data
.mode
= nir_var_shader_temp
;
454 var
->data
.mode
= nir_var_function_temp
;
457 case ir_var_function_in
:
458 case ir_var_const_in
:
459 var
->data
.mode
= nir_var_function_temp
;
462 case ir_var_shader_in
:
463 if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
464 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
465 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
466 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
467 var
->data
.mode
= nir_var_system_value
;
469 var
->data
.mode
= nir_var_shader_in
;
471 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
472 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
473 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
474 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
477 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
478 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
479 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
480 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
485 case ir_var_shader_out
:
486 var
->data
.mode
= nir_var_shader_out
;
487 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
488 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
489 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
490 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
493 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
494 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
495 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
496 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
501 if (ir
->get_interface_type())
502 var
->data
.mode
= nir_var_mem_ubo
;
504 var
->data
.mode
= nir_var_uniform
;
507 case ir_var_shader_storage
:
508 var
->data
.mode
= nir_var_mem_ssbo
;
511 case ir_var_system_value
:
512 var
->data
.mode
= nir_var_system_value
;
516 unreachable("not reached");
519 unsigned image_access
= 0;
520 if (ir
->data
.memory_read_only
)
521 image_access
|= ACCESS_NON_WRITEABLE
;
522 if (ir
->data
.memory_write_only
)
523 image_access
|= ACCESS_NON_READABLE
;
524 if (ir
->data
.memory_coherent
)
525 image_access
|= ACCESS_COHERENT
;
526 if (ir
->data
.memory_volatile
)
527 image_access
|= ACCESS_VOLATILE
;
528 if (ir
->data
.memory_restrict
)
529 image_access
|= ACCESS_RESTRICT
;
531 /* For UBO and SSBO variables, we need explicit types */
532 if (var
->data
.mode
& (nir_var_mem_ubo
| nir_var_mem_ssbo
)) {
533 const glsl_type
*explicit_ifc_type
=
534 ir
->get_interface_type()->get_explicit_interface_type(supports_std430
);
536 if (ir
->type
->without_array()->is_interface()) {
537 /* If the type contains the interface, wrap the explicit type in the
538 * right number of arrays.
540 var
->type
= wrap_type_in_array(explicit_ifc_type
, ir
->type
);
542 /* Otherwise, this variable is one entry in the interface */
543 UNUSED
bool found
= false;
544 for (unsigned i
= 0; i
< explicit_ifc_type
->length
; i
++) {
545 const glsl_struct_field
*field
=
546 &explicit_ifc_type
->fields
.structure
[i
];
547 if (strcmp(ir
->name
, field
->name
) != 0)
550 var
->type
= field
->type
;
551 if (field
->memory_read_only
)
552 image_access
|= ACCESS_NON_WRITEABLE
;
553 if (field
->memory_write_only
)
554 image_access
|= ACCESS_NON_READABLE
;
555 if (field
->memory_coherent
)
556 image_access
|= ACCESS_COHERENT
;
557 if (field
->memory_volatile
)
558 image_access
|= ACCESS_VOLATILE
;
559 if (field
->memory_restrict
)
560 image_access
|= ACCESS_RESTRICT
;
569 var
->data
.interpolation
= ir
->data
.interpolation
;
570 var
->data
.location_frac
= ir
->data
.location_frac
;
572 switch (ir
->data
.depth_layout
) {
573 case ir_depth_layout_none
:
574 var
->data
.depth_layout
= nir_depth_layout_none
;
576 case ir_depth_layout_any
:
577 var
->data
.depth_layout
= nir_depth_layout_any
;
579 case ir_depth_layout_greater
:
580 var
->data
.depth_layout
= nir_depth_layout_greater
;
582 case ir_depth_layout_less
:
583 var
->data
.depth_layout
= nir_depth_layout_less
;
585 case ir_depth_layout_unchanged
:
586 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
589 unreachable("not reached");
592 var
->data
.index
= ir
->data
.index
;
593 var
->data
.descriptor_set
= 0;
594 var
->data
.binding
= ir
->data
.binding
;
595 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
596 var
->data
.bindless
= ir
->data
.bindless
;
597 var
->data
.offset
= ir
->data
.offset
;
599 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
600 var
->data
.image
.format
= ir
->data
.image_format
;
602 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
603 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
604 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
605 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
606 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
608 var
->num_state_slots
= ir
->get_num_state_slots();
609 if (var
->num_state_slots
> 0) {
610 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
611 var
->num_state_slots
);
613 ir_state_slot
*state_slots
= ir
->get_state_slots();
614 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
615 for (unsigned j
= 0; j
< 5; j
++)
616 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
617 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
620 var
->state_slots
= NULL
;
623 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
625 var
->interface_type
= ir
->get_interface_type();
627 if (var
->data
.mode
== nir_var_function_temp
)
628 nir_function_impl_add_variable(impl
, var
);
630 nir_shader_add_variable(shader
, var
);
632 _mesa_hash_table_insert(var_table
, ir
, var
);
636 nir_function_visitor::visit_enter(ir_function
*ir
)
638 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
639 visitor
->create_function(sig
);
641 return visit_continue_with_parent
;
645 nir_visitor::create_function(ir_function_signature
*ir
)
647 if (ir
->is_intrinsic())
650 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
651 if (strcmp(ir
->function_name(), "main") == 0)
652 func
->is_entrypoint
= true;
654 func
->num_params
= ir
->parameters
.length() +
655 (ir
->return_type
!= glsl_type::void_type
);
656 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
660 if (ir
->return_type
!= glsl_type::void_type
) {
661 /* The return value is a variable deref (basically an out parameter) */
662 func
->params
[np
].num_components
= 1;
663 func
->params
[np
].bit_size
= 32;
667 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
668 /* FINISHME: pass arrays, structs, etc by reference? */
669 assert(param
->type
->is_vector() || param
->type
->is_scalar());
671 if (param
->data
.mode
== ir_var_function_in
) {
672 func
->params
[np
].num_components
= param
->type
->vector_elements
;
673 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
675 func
->params
[np
].num_components
= 1;
676 func
->params
[np
].bit_size
= 32;
680 assert(np
== func
->num_params
);
682 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
686 nir_visitor::visit(ir_function
*ir
)
688 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
693 nir_visitor::visit(ir_function_signature
*ir
)
695 if (ir
->is_intrinsic())
700 struct hash_entry
*entry
=
701 _mesa_hash_table_search(this->overload_table
, ir
);
704 nir_function
*func
= (nir_function
*) entry
->data
;
706 if (ir
->is_defined
) {
707 nir_function_impl
*impl
= nir_function_impl_create(func
);
710 this->is_global
= false;
712 nir_builder_init(&b
, impl
);
713 b
.cursor
= nir_after_cf_list(&impl
->body
);
715 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
717 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
719 nir_local_variable_create(impl
, param
->type
, param
->name
);
721 if (param
->data
.mode
== ir_var_function_in
) {
722 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
725 _mesa_hash_table_insert(var_table
, param
, var
);
729 visit_exec_list(&ir
->body
, this);
731 this->is_global
= true;
738 nir_visitor::visit(ir_loop
*ir
)
741 visit_exec_list(&ir
->body_instructions
, this);
742 nir_pop_loop(&b
, NULL
);
746 nir_visitor::visit(ir_if
*ir
)
748 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
749 visit_exec_list(&ir
->then_instructions
, this);
750 nir_push_else(&b
, NULL
);
751 visit_exec_list(&ir
->else_instructions
, this);
752 nir_pop_if(&b
, NULL
);
756 nir_visitor::visit(ir_discard
*ir
)
759 * discards aren't treated as control flow, because before we lower them
760 * they can appear anywhere in the shader and the stuff after them may still
761 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
762 * discards will be immediately followed by a return.
765 nir_intrinsic_instr
*discard
;
767 discard
= nir_intrinsic_instr_create(this->shader
,
768 nir_intrinsic_discard_if
);
770 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
772 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
775 nir_builder_instr_insert(&b
, &discard
->instr
);
779 nir_visitor::visit(ir_emit_vertex
*ir
)
781 nir_intrinsic_instr
*instr
=
782 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
783 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
784 nir_builder_instr_insert(&b
, &instr
->instr
);
788 nir_visitor::visit(ir_end_primitive
*ir
)
790 nir_intrinsic_instr
*instr
=
791 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
792 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
793 nir_builder_instr_insert(&b
, &instr
->instr
);
797 nir_visitor::visit(ir_loop_jump
*ir
)
801 case ir_loop_jump::jump_break
:
802 type
= nir_jump_break
;
804 case ir_loop_jump::jump_continue
:
805 type
= nir_jump_continue
;
808 unreachable("not reached");
811 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
812 nir_builder_instr_insert(&b
, &instr
->instr
);
816 nir_visitor::visit(ir_return
*ir
)
818 if (ir
->value
!= NULL
) {
819 nir_deref_instr
*ret_deref
=
820 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
821 nir_var_function_temp
, ir
->value
->type
, 0);
823 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
824 nir_store_deref(&b
, ret_deref
, val
, ~0);
827 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
828 nir_builder_instr_insert(&b
, &instr
->instr
);
832 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
834 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
835 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
836 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
839 /* Accumulate any qualifiers along the deref chain to get the actual
840 * load/store qualifier.
843 static enum gl_access_qualifier
844 deref_get_qualifier(nir_deref_instr
*deref
)
847 nir_deref_path_init(&path
, deref
, NULL
);
849 unsigned qualifiers
= path
.path
[0]->var
->data
.image
.access
;
851 const glsl_type
*parent_type
= path
.path
[0]->type
;
852 for (nir_deref_instr
**cur_ptr
= &path
.path
[1]; *cur_ptr
; cur_ptr
++) {
853 nir_deref_instr
*cur
= *cur_ptr
;
855 if (parent_type
->is_interface()) {
856 const struct glsl_struct_field
*field
=
857 &parent_type
->fields
.structure
[cur
->strct
.index
];
858 if (field
->memory_read_only
)
859 qualifiers
|= ACCESS_NON_WRITEABLE
;
860 if (field
->memory_write_only
)
861 qualifiers
|= ACCESS_NON_READABLE
;
862 if (field
->memory_coherent
)
863 qualifiers
|= ACCESS_COHERENT
;
864 if (field
->memory_volatile
)
865 qualifiers
|= ACCESS_VOLATILE
;
866 if (field
->memory_restrict
)
867 qualifiers
|= ACCESS_RESTRICT
;
870 parent_type
= cur
->type
;
873 nir_deref_path_finish(&path
);
875 return (gl_access_qualifier
) qualifiers
;
879 nir_visitor::visit(ir_call
*ir
)
881 if (ir
->callee
->is_intrinsic()) {
884 switch (ir
->callee
->intrinsic_id
) {
885 case ir_intrinsic_generic_atomic_add
:
886 op
= ir
->return_deref
->type
->is_integer_32_64()
887 ? nir_intrinsic_deref_atomic_add
: nir_intrinsic_deref_atomic_fadd
;
889 case ir_intrinsic_generic_atomic_and
:
890 op
= nir_intrinsic_deref_atomic_and
;
892 case ir_intrinsic_generic_atomic_or
:
893 op
= nir_intrinsic_deref_atomic_or
;
895 case ir_intrinsic_generic_atomic_xor
:
896 op
= nir_intrinsic_deref_atomic_xor
;
898 case ir_intrinsic_generic_atomic_min
:
899 assert(ir
->return_deref
);
900 if (ir
->return_deref
->type
== glsl_type::int_type
)
901 op
= nir_intrinsic_deref_atomic_imin
;
902 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
903 op
= nir_intrinsic_deref_atomic_umin
;
904 else if (ir
->return_deref
->type
== glsl_type::float_type
)
905 op
= nir_intrinsic_deref_atomic_fmin
;
907 unreachable("Invalid type");
909 case ir_intrinsic_generic_atomic_max
:
910 assert(ir
->return_deref
);
911 if (ir
->return_deref
->type
== glsl_type::int_type
)
912 op
= nir_intrinsic_deref_atomic_imax
;
913 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
914 op
= nir_intrinsic_deref_atomic_umax
;
915 else if (ir
->return_deref
->type
== glsl_type::float_type
)
916 op
= nir_intrinsic_deref_atomic_fmax
;
918 unreachable("Invalid type");
920 case ir_intrinsic_generic_atomic_exchange
:
921 op
= nir_intrinsic_deref_atomic_exchange
;
923 case ir_intrinsic_generic_atomic_comp_swap
:
924 op
= ir
->return_deref
->type
->is_integer_32_64()
925 ? nir_intrinsic_deref_atomic_comp_swap
926 : nir_intrinsic_deref_atomic_fcomp_swap
;
928 case ir_intrinsic_atomic_counter_read
:
929 op
= nir_intrinsic_atomic_counter_read_deref
;
931 case ir_intrinsic_atomic_counter_increment
:
932 op
= nir_intrinsic_atomic_counter_inc_deref
;
934 case ir_intrinsic_atomic_counter_predecrement
:
935 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
937 case ir_intrinsic_atomic_counter_add
:
938 op
= nir_intrinsic_atomic_counter_add_deref
;
940 case ir_intrinsic_atomic_counter_and
:
941 op
= nir_intrinsic_atomic_counter_and_deref
;
943 case ir_intrinsic_atomic_counter_or
:
944 op
= nir_intrinsic_atomic_counter_or_deref
;
946 case ir_intrinsic_atomic_counter_xor
:
947 op
= nir_intrinsic_atomic_counter_xor_deref
;
949 case ir_intrinsic_atomic_counter_min
:
950 op
= nir_intrinsic_atomic_counter_min_deref
;
952 case ir_intrinsic_atomic_counter_max
:
953 op
= nir_intrinsic_atomic_counter_max_deref
;
955 case ir_intrinsic_atomic_counter_exchange
:
956 op
= nir_intrinsic_atomic_counter_exchange_deref
;
958 case ir_intrinsic_atomic_counter_comp_swap
:
959 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
961 case ir_intrinsic_image_load
:
962 op
= nir_intrinsic_image_deref_load
;
964 case ir_intrinsic_image_store
:
965 op
= nir_intrinsic_image_deref_store
;
967 case ir_intrinsic_image_atomic_add
:
968 op
= ir
->return_deref
->type
->is_integer_32_64()
969 ? nir_intrinsic_image_deref_atomic_add
970 : nir_intrinsic_image_deref_atomic_fadd
;
972 case ir_intrinsic_image_atomic_min
:
973 if (ir
->return_deref
->type
== glsl_type::int_type
)
974 op
= nir_intrinsic_image_deref_atomic_imin
;
975 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
976 op
= nir_intrinsic_image_deref_atomic_umin
;
978 unreachable("Invalid type");
980 case ir_intrinsic_image_atomic_max
:
981 if (ir
->return_deref
->type
== glsl_type::int_type
)
982 op
= nir_intrinsic_image_deref_atomic_imax
;
983 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
984 op
= nir_intrinsic_image_deref_atomic_umax
;
986 unreachable("Invalid type");
988 case ir_intrinsic_image_atomic_and
:
989 op
= nir_intrinsic_image_deref_atomic_and
;
991 case ir_intrinsic_image_atomic_or
:
992 op
= nir_intrinsic_image_deref_atomic_or
;
994 case ir_intrinsic_image_atomic_xor
:
995 op
= nir_intrinsic_image_deref_atomic_xor
;
997 case ir_intrinsic_image_atomic_exchange
:
998 op
= nir_intrinsic_image_deref_atomic_exchange
;
1000 case ir_intrinsic_image_atomic_comp_swap
:
1001 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
1003 case ir_intrinsic_image_atomic_inc_wrap
:
1004 op
= nir_intrinsic_image_deref_atomic_inc_wrap
;
1006 case ir_intrinsic_image_atomic_dec_wrap
:
1007 op
= nir_intrinsic_image_deref_atomic_dec_wrap
;
1009 case ir_intrinsic_memory_barrier
:
1010 op
= nir_intrinsic_memory_barrier
;
1012 case ir_intrinsic_image_size
:
1013 op
= nir_intrinsic_image_deref_size
;
1015 case ir_intrinsic_image_samples
:
1016 op
= nir_intrinsic_image_deref_samples
;
1018 case ir_intrinsic_ssbo_store
:
1019 op
= nir_intrinsic_store_ssbo
;
1021 case ir_intrinsic_ssbo_load
:
1022 op
= nir_intrinsic_load_ssbo
;
1024 case ir_intrinsic_ssbo_atomic_add
:
1025 op
= ir
->return_deref
->type
->is_integer_32_64()
1026 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
1028 case ir_intrinsic_ssbo_atomic_and
:
1029 op
= nir_intrinsic_ssbo_atomic_and
;
1031 case ir_intrinsic_ssbo_atomic_or
:
1032 op
= nir_intrinsic_ssbo_atomic_or
;
1034 case ir_intrinsic_ssbo_atomic_xor
:
1035 op
= nir_intrinsic_ssbo_atomic_xor
;
1037 case ir_intrinsic_ssbo_atomic_min
:
1038 assert(ir
->return_deref
);
1039 if (ir
->return_deref
->type
== glsl_type::int_type
)
1040 op
= nir_intrinsic_ssbo_atomic_imin
;
1041 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1042 op
= nir_intrinsic_ssbo_atomic_umin
;
1043 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1044 op
= nir_intrinsic_ssbo_atomic_fmin
;
1046 unreachable("Invalid type");
1048 case ir_intrinsic_ssbo_atomic_max
:
1049 assert(ir
->return_deref
);
1050 if (ir
->return_deref
->type
== glsl_type::int_type
)
1051 op
= nir_intrinsic_ssbo_atomic_imax
;
1052 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1053 op
= nir_intrinsic_ssbo_atomic_umax
;
1054 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1055 op
= nir_intrinsic_ssbo_atomic_fmax
;
1057 unreachable("Invalid type");
1059 case ir_intrinsic_ssbo_atomic_exchange
:
1060 op
= nir_intrinsic_ssbo_atomic_exchange
;
1062 case ir_intrinsic_ssbo_atomic_comp_swap
:
1063 op
= ir
->return_deref
->type
->is_integer_32_64()
1064 ? nir_intrinsic_ssbo_atomic_comp_swap
1065 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
1067 case ir_intrinsic_shader_clock
:
1068 op
= nir_intrinsic_shader_clock
;
1070 case ir_intrinsic_begin_invocation_interlock
:
1071 op
= nir_intrinsic_begin_invocation_interlock
;
1073 case ir_intrinsic_end_invocation_interlock
:
1074 op
= nir_intrinsic_end_invocation_interlock
;
1076 case ir_intrinsic_group_memory_barrier
:
1077 op
= nir_intrinsic_group_memory_barrier
;
1079 case ir_intrinsic_memory_barrier_atomic_counter
:
1080 op
= nir_intrinsic_memory_barrier_atomic_counter
;
1082 case ir_intrinsic_memory_barrier_buffer
:
1083 op
= nir_intrinsic_memory_barrier_buffer
;
1085 case ir_intrinsic_memory_barrier_image
:
1086 op
= nir_intrinsic_memory_barrier_image
;
1088 case ir_intrinsic_memory_barrier_shared
:
1089 op
= nir_intrinsic_memory_barrier_shared
;
1091 case ir_intrinsic_shared_load
:
1092 op
= nir_intrinsic_load_shared
;
1094 case ir_intrinsic_shared_store
:
1095 op
= nir_intrinsic_store_shared
;
1097 case ir_intrinsic_shared_atomic_add
:
1098 op
= ir
->return_deref
->type
->is_integer_32_64()
1099 ? nir_intrinsic_shared_atomic_add
1100 : nir_intrinsic_shared_atomic_fadd
;
1102 case ir_intrinsic_shared_atomic_and
:
1103 op
= nir_intrinsic_shared_atomic_and
;
1105 case ir_intrinsic_shared_atomic_or
:
1106 op
= nir_intrinsic_shared_atomic_or
;
1108 case ir_intrinsic_shared_atomic_xor
:
1109 op
= nir_intrinsic_shared_atomic_xor
;
1111 case ir_intrinsic_shared_atomic_min
:
1112 assert(ir
->return_deref
);
1113 if (ir
->return_deref
->type
== glsl_type::int_type
)
1114 op
= nir_intrinsic_shared_atomic_imin
;
1115 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1116 op
= nir_intrinsic_shared_atomic_umin
;
1117 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1118 op
= nir_intrinsic_shared_atomic_fmin
;
1120 unreachable("Invalid type");
1122 case ir_intrinsic_shared_atomic_max
:
1123 assert(ir
->return_deref
);
1124 if (ir
->return_deref
->type
== glsl_type::int_type
)
1125 op
= nir_intrinsic_shared_atomic_imax
;
1126 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1127 op
= nir_intrinsic_shared_atomic_umax
;
1128 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1129 op
= nir_intrinsic_shared_atomic_fmax
;
1131 unreachable("Invalid type");
1133 case ir_intrinsic_shared_atomic_exchange
:
1134 op
= nir_intrinsic_shared_atomic_exchange
;
1136 case ir_intrinsic_shared_atomic_comp_swap
:
1137 op
= ir
->return_deref
->type
->is_integer_32_64()
1138 ? nir_intrinsic_shared_atomic_comp_swap
1139 : nir_intrinsic_shared_atomic_fcomp_swap
;
1141 case ir_intrinsic_vote_any
:
1142 op
= nir_intrinsic_vote_any
;
1144 case ir_intrinsic_vote_all
:
1145 op
= nir_intrinsic_vote_all
;
1147 case ir_intrinsic_vote_eq
:
1148 op
= nir_intrinsic_vote_ieq
;
1150 case ir_intrinsic_ballot
:
1151 op
= nir_intrinsic_ballot
;
1153 case ir_intrinsic_read_invocation
:
1154 op
= nir_intrinsic_read_invocation
;
1156 case ir_intrinsic_read_first_invocation
:
1157 op
= nir_intrinsic_read_first_invocation
;
1160 unreachable("not reached");
1163 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
1164 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
1167 case nir_intrinsic_deref_atomic_add
:
1168 case nir_intrinsic_deref_atomic_imin
:
1169 case nir_intrinsic_deref_atomic_umin
:
1170 case nir_intrinsic_deref_atomic_imax
:
1171 case nir_intrinsic_deref_atomic_umax
:
1172 case nir_intrinsic_deref_atomic_and
:
1173 case nir_intrinsic_deref_atomic_or
:
1174 case nir_intrinsic_deref_atomic_xor
:
1175 case nir_intrinsic_deref_atomic_exchange
:
1176 case nir_intrinsic_deref_atomic_comp_swap
:
1177 case nir_intrinsic_deref_atomic_fadd
:
1178 case nir_intrinsic_deref_atomic_fmin
:
1179 case nir_intrinsic_deref_atomic_fmax
:
1180 case nir_intrinsic_deref_atomic_fcomp_swap
: {
1181 int param_count
= ir
->actual_parameters
.length();
1182 assert(param_count
== 2 || param_count
== 3);
1185 exec_node
*param
= ir
->actual_parameters
.get_head();
1186 ir_rvalue
*rvalue
= (ir_rvalue
*) param
;
1187 ir_dereference
*deref
= rvalue
->as_dereference();
1188 ir_swizzle
*swizzle
= NULL
;
1190 /* We may have a swizzle to pick off a single vec4 component */
1191 swizzle
= rvalue
->as_swizzle();
1192 assert(swizzle
&& swizzle
->type
->vector_elements
== 1);
1193 deref
= swizzle
->val
->as_dereference();
1196 nir_deref_instr
*nir_deref
= evaluate_deref(deref
);
1198 nir_deref
= nir_build_deref_array_imm(&b
, nir_deref
,
1201 instr
->src
[0] = nir_src_for_ssa(&nir_deref
->dest
.ssa
);
1203 nir_intrinsic_set_access(instr
, deref_get_qualifier(nir_deref
));
1205 /* data1 parameter (this is always present) */
1206 param
= param
->get_next();
1207 ir_instruction
*inst
= (ir_instruction
*) param
;
1208 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1210 /* data2 parameter (only with atomic_comp_swap) */
1211 if (param_count
== 3) {
1212 assert(op
== nir_intrinsic_deref_atomic_comp_swap
||
1213 op
== nir_intrinsic_deref_atomic_fcomp_swap
);
1214 param
= param
->get_next();
1215 inst
= (ir_instruction
*) param
;
1216 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1220 assert(ir
->return_deref
);
1221 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1222 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1223 nir_builder_instr_insert(&b
, &instr
->instr
);
1226 case nir_intrinsic_atomic_counter_read_deref
:
1227 case nir_intrinsic_atomic_counter_inc_deref
:
1228 case nir_intrinsic_atomic_counter_pre_dec_deref
:
1229 case nir_intrinsic_atomic_counter_add_deref
:
1230 case nir_intrinsic_atomic_counter_min_deref
:
1231 case nir_intrinsic_atomic_counter_max_deref
:
1232 case nir_intrinsic_atomic_counter_and_deref
:
1233 case nir_intrinsic_atomic_counter_or_deref
:
1234 case nir_intrinsic_atomic_counter_xor_deref
:
1235 case nir_intrinsic_atomic_counter_exchange_deref
:
1236 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
1237 /* Set the counter variable dereference. */
1238 exec_node
*param
= ir
->actual_parameters
.get_head();
1239 ir_dereference
*counter
= (ir_dereference
*)param
;
1241 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
1242 param
= param
->get_next();
1244 /* Set the intrinsic destination. */
1245 if (ir
->return_deref
) {
1246 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1249 /* Set the intrinsic parameters. */
1250 if (!param
->is_tail_sentinel()) {
1252 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1253 param
= param
->get_next();
1256 if (!param
->is_tail_sentinel()) {
1258 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1259 param
= param
->get_next();
1262 nir_builder_instr_insert(&b
, &instr
->instr
);
1265 case nir_intrinsic_image_deref_load
:
1266 case nir_intrinsic_image_deref_store
:
1267 case nir_intrinsic_image_deref_atomic_add
:
1268 case nir_intrinsic_image_deref_atomic_imin
:
1269 case nir_intrinsic_image_deref_atomic_umin
:
1270 case nir_intrinsic_image_deref_atomic_imax
:
1271 case nir_intrinsic_image_deref_atomic_umax
:
1272 case nir_intrinsic_image_deref_atomic_and
:
1273 case nir_intrinsic_image_deref_atomic_or
:
1274 case nir_intrinsic_image_deref_atomic_xor
:
1275 case nir_intrinsic_image_deref_atomic_exchange
:
1276 case nir_intrinsic_image_deref_atomic_comp_swap
:
1277 case nir_intrinsic_image_deref_atomic_fadd
:
1278 case nir_intrinsic_image_deref_samples
:
1279 case nir_intrinsic_image_deref_size
:
1280 case nir_intrinsic_image_deref_atomic_inc_wrap
:
1281 case nir_intrinsic_image_deref_atomic_dec_wrap
: {
1282 nir_ssa_undef_instr
*instr_undef
=
1283 nir_ssa_undef_instr_create(shader
, 1, 32);
1284 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
1286 /* Set the image variable dereference. */
1287 exec_node
*param
= ir
->actual_parameters
.get_head();
1288 ir_dereference
*image
= (ir_dereference
*)param
;
1289 nir_deref_instr
*deref
= evaluate_deref(image
);
1290 const glsl_type
*type
= deref
->type
;
1292 nir_intrinsic_set_access(instr
, deref_get_qualifier(deref
));
1294 instr
->src
[0] = nir_src_for_ssa(&deref
->dest
.ssa
);
1295 param
= param
->get_next();
1297 /* Set the intrinsic destination. */
1298 if (ir
->return_deref
) {
1299 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
1300 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1301 num_components
, 32, NULL
);
1304 if (op
== nir_intrinsic_image_deref_size
) {
1305 instr
->num_components
= instr
->dest
.ssa
.num_components
;
1306 } else if (op
== nir_intrinsic_image_deref_load
||
1307 op
== nir_intrinsic_image_deref_store
) {
1308 instr
->num_components
= 4;
1311 if (op
== nir_intrinsic_image_deref_size
||
1312 op
== nir_intrinsic_image_deref_samples
) {
1313 nir_builder_instr_insert(&b
, &instr
->instr
);
1317 /* Set the address argument, extending the coordinate vector to four
1320 nir_ssa_def
*src_addr
=
1321 evaluate_rvalue((ir_dereference
*)param
);
1322 nir_ssa_def
*srcs
[4];
1324 for (int i
= 0; i
< 4; i
++) {
1325 if (i
< type
->coordinate_components())
1326 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1328 srcs
[i
] = &instr_undef
->def
;
1331 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1332 param
= param
->get_next();
1334 /* Set the sample argument, which is undefined for single-sample
1337 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1339 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1340 param
= param
->get_next();
1342 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1345 /* Set the intrinsic parameters. */
1346 if (!param
->is_tail_sentinel()) {
1348 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1349 param
= param
->get_next();
1352 if (!param
->is_tail_sentinel()) {
1354 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1355 param
= param
->get_next();
1357 nir_builder_instr_insert(&b
, &instr
->instr
);
1360 case nir_intrinsic_memory_barrier
:
1361 case nir_intrinsic_group_memory_barrier
:
1362 case nir_intrinsic_memory_barrier_atomic_counter
:
1363 case nir_intrinsic_memory_barrier_buffer
:
1364 case nir_intrinsic_memory_barrier_image
:
1365 case nir_intrinsic_memory_barrier_shared
:
1366 nir_builder_instr_insert(&b
, &instr
->instr
);
1368 case nir_intrinsic_shader_clock
:
1369 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1370 instr
->num_components
= 2;
1371 nir_builder_instr_insert(&b
, &instr
->instr
);
1373 case nir_intrinsic_begin_invocation_interlock
:
1374 nir_builder_instr_insert(&b
, &instr
->instr
);
1376 case nir_intrinsic_end_invocation_interlock
:
1377 nir_builder_instr_insert(&b
, &instr
->instr
);
1379 case nir_intrinsic_store_ssbo
: {
1380 exec_node
*param
= ir
->actual_parameters
.get_head();
1381 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1383 param
= param
->get_next();
1384 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1386 param
= param
->get_next();
1387 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1389 param
= param
->get_next();
1390 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1393 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1394 if (val
->type
->is_boolean())
1395 nir_val
= nir_b2i32(&b
, nir_val
);
1397 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1398 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1399 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1400 intrinsic_set_std430_align(instr
, val
->type
);
1401 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1402 instr
->num_components
= val
->type
->vector_elements
;
1404 nir_builder_instr_insert(&b
, &instr
->instr
);
1407 case nir_intrinsic_load_ssbo
: {
1408 exec_node
*param
= ir
->actual_parameters
.get_head();
1409 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1411 param
= param
->get_next();
1412 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1414 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1415 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1417 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1418 instr
->num_components
= type
->vector_elements
;
1419 intrinsic_set_std430_align(instr
, type
);
1421 /* Setup destination register */
1422 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1423 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1424 type
->vector_elements
, bit_size
, NULL
);
1426 /* Insert the created nir instruction now since in the case of boolean
1427 * result we will need to emit another instruction after it
1429 nir_builder_instr_insert(&b
, &instr
->instr
);
1432 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1433 * consider a true boolean to be ~0. Fix this up with a != 0
1436 if (type
->is_boolean())
1437 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1440 case nir_intrinsic_ssbo_atomic_add
:
1441 case nir_intrinsic_ssbo_atomic_imin
:
1442 case nir_intrinsic_ssbo_atomic_umin
:
1443 case nir_intrinsic_ssbo_atomic_imax
:
1444 case nir_intrinsic_ssbo_atomic_umax
:
1445 case nir_intrinsic_ssbo_atomic_and
:
1446 case nir_intrinsic_ssbo_atomic_or
:
1447 case nir_intrinsic_ssbo_atomic_xor
:
1448 case nir_intrinsic_ssbo_atomic_exchange
:
1449 case nir_intrinsic_ssbo_atomic_comp_swap
:
1450 case nir_intrinsic_ssbo_atomic_fadd
:
1451 case nir_intrinsic_ssbo_atomic_fmin
:
1452 case nir_intrinsic_ssbo_atomic_fmax
:
1453 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1454 int param_count
= ir
->actual_parameters
.length();
1455 assert(param_count
== 3 || param_count
== 4);
1458 exec_node
*param
= ir
->actual_parameters
.get_head();
1459 ir_instruction
*inst
= (ir_instruction
*) param
;
1460 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1463 param
= param
->get_next();
1464 inst
= (ir_instruction
*) param
;
1465 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1467 /* data1 parameter (this is always present) */
1468 param
= param
->get_next();
1469 inst
= (ir_instruction
*) param
;
1470 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1472 /* data2 parameter (only with atomic_comp_swap) */
1473 if (param_count
== 4) {
1474 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1475 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1476 param
= param
->get_next();
1477 inst
= (ir_instruction
*) param
;
1478 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1482 assert(ir
->return_deref
);
1483 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1484 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1485 nir_builder_instr_insert(&b
, &instr
->instr
);
1488 case nir_intrinsic_load_shared
: {
1489 exec_node
*param
= ir
->actual_parameters
.get_head();
1490 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1492 nir_intrinsic_set_base(instr
, 0);
1493 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1495 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1496 instr
->num_components
= type
->vector_elements
;
1497 intrinsic_set_std430_align(instr
, type
);
1499 /* Setup destination register */
1500 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1501 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1502 type
->vector_elements
, bit_size
, NULL
);
1504 nir_builder_instr_insert(&b
, &instr
->instr
);
1506 /* The value in shared memory is a 32-bit value */
1507 if (type
->is_boolean())
1508 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1511 case nir_intrinsic_store_shared
: {
1512 exec_node
*param
= ir
->actual_parameters
.get_head();
1513 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1515 param
= param
->get_next();
1516 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1518 param
= param
->get_next();
1519 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1522 nir_intrinsic_set_base(instr
, 0);
1523 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1525 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1527 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1528 /* The value in shared memory is a 32-bit value */
1529 if (val
->type
->is_boolean())
1530 nir_val
= nir_b2i32(&b
, nir_val
);
1532 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1533 instr
->num_components
= val
->type
->vector_elements
;
1534 intrinsic_set_std430_align(instr
, val
->type
);
1536 nir_builder_instr_insert(&b
, &instr
->instr
);
1539 case nir_intrinsic_shared_atomic_add
:
1540 case nir_intrinsic_shared_atomic_imin
:
1541 case nir_intrinsic_shared_atomic_umin
:
1542 case nir_intrinsic_shared_atomic_imax
:
1543 case nir_intrinsic_shared_atomic_umax
:
1544 case nir_intrinsic_shared_atomic_and
:
1545 case nir_intrinsic_shared_atomic_or
:
1546 case nir_intrinsic_shared_atomic_xor
:
1547 case nir_intrinsic_shared_atomic_exchange
:
1548 case nir_intrinsic_shared_atomic_comp_swap
:
1549 case nir_intrinsic_shared_atomic_fadd
:
1550 case nir_intrinsic_shared_atomic_fmin
:
1551 case nir_intrinsic_shared_atomic_fmax
:
1552 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1553 int param_count
= ir
->actual_parameters
.length();
1554 assert(param_count
== 2 || param_count
== 3);
1557 exec_node
*param
= ir
->actual_parameters
.get_head();
1558 ir_instruction
*inst
= (ir_instruction
*) param
;
1559 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1561 /* data1 parameter (this is always present) */
1562 param
= param
->get_next();
1563 inst
= (ir_instruction
*) param
;
1564 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1566 /* data2 parameter (only with atomic_comp_swap) */
1567 if (param_count
== 3) {
1568 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1569 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1570 param
= param
->get_next();
1571 inst
= (ir_instruction
*) param
;
1573 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1577 assert(ir
->return_deref
);
1578 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1579 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1580 ir
->return_deref
->type
->vector_elements
,
1582 nir_builder_instr_insert(&b
, &instr
->instr
);
1585 case nir_intrinsic_vote_any
:
1586 case nir_intrinsic_vote_all
:
1587 case nir_intrinsic_vote_ieq
: {
1588 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1589 instr
->num_components
= 1;
1591 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1592 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1594 nir_builder_instr_insert(&b
, &instr
->instr
);
1598 case nir_intrinsic_ballot
: {
1599 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1600 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1601 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1603 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1604 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1606 nir_builder_instr_insert(&b
, &instr
->instr
);
1609 case nir_intrinsic_read_invocation
: {
1610 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1611 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1612 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1614 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1615 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1617 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1618 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1620 nir_builder_instr_insert(&b
, &instr
->instr
);
1623 case nir_intrinsic_read_first_invocation
: {
1624 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1625 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1626 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1628 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1629 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1631 nir_builder_instr_insert(&b
, &instr
->instr
);
1635 unreachable("not reached");
1638 if (ir
->return_deref
)
1639 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1644 struct hash_entry
*entry
=
1645 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1647 nir_function
*callee
= (nir_function
*) entry
->data
;
1649 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1652 nir_deref_instr
*ret_deref
= NULL
;
1653 if (ir
->return_deref
) {
1654 nir_variable
*ret_tmp
=
1655 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1657 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1658 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1661 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1662 actual_node
, &ir
->actual_parameters
) {
1663 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1664 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1666 if (sig_param
->data
.mode
== ir_var_function_out
) {
1667 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1668 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1669 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1670 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1671 nir_src src
= nir_src_for_ssa(val
);
1673 nir_src_copy(&call
->params
[i
], &src
, call
);
1674 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1675 unreachable("unimplemented: inout parameters");
1681 nir_builder_instr_insert(&b
, &call
->instr
);
1683 if (ir
->return_deref
)
1684 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1688 nir_visitor::visit(ir_assignment
*ir
)
1690 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1692 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1693 ir
->lhs
->variable_referenced()->data
.precise
;
1695 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1696 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1697 nir_deref_instr
*lhs
= evaluate_deref(ir
->lhs
);
1698 nir_deref_instr
*rhs
= evaluate_deref(ir
->rhs
);
1699 enum gl_access_qualifier lhs_qualifiers
= deref_get_qualifier(lhs
);
1700 enum gl_access_qualifier rhs_qualifiers
= deref_get_qualifier(rhs
);
1701 if (ir
->condition
) {
1702 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1703 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1705 nir_pop_if(&b
, NULL
);
1707 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1713 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1715 ir
->lhs
->accept(this);
1716 nir_deref_instr
*lhs_deref
= this->deref
;
1717 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1719 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1720 /* GLSL IR will give us the input to the write-masked assignment in a
1721 * single packed vector. So, for example, if the writemask is xzw, then
1722 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1726 unsigned component
= 0;
1727 for (unsigned i
= 0; i
< 4; i
++) {
1728 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1730 src
= nir_swizzle(&b
, src
, swiz
, num_components
);
1733 enum gl_access_qualifier qualifiers
= deref_get_qualifier(lhs_deref
);
1734 if (ir
->condition
) {
1735 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1736 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1738 nir_pop_if(&b
, NULL
);
1740 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1746 * Given an instruction, returns a pointer to its destination or NULL if there
1747 * is no destination.
1749 * Note that this only handles instructions we generate at this level.
1752 get_instr_dest(nir_instr
*instr
)
1754 nir_alu_instr
*alu_instr
;
1755 nir_intrinsic_instr
*intrinsic_instr
;
1756 nir_tex_instr
*tex_instr
;
1758 switch (instr
->type
) {
1759 case nir_instr_type_alu
:
1760 alu_instr
= nir_instr_as_alu(instr
);
1761 return &alu_instr
->dest
.dest
;
1763 case nir_instr_type_intrinsic
:
1764 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1765 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1766 return &intrinsic_instr
->dest
;
1770 case nir_instr_type_tex
:
1771 tex_instr
= nir_instr_as_tex(instr
);
1772 return &tex_instr
->dest
;
1775 unreachable("not reached");
1782 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1785 nir_dest
*dest
= get_instr_dest(instr
);
1788 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1790 nir_builder_instr_insert(&b
, instr
);
1793 assert(dest
->is_ssa
);
1794 this->result
= &dest
->ssa
;
1799 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1802 if (ir
->as_dereference() || ir
->as_constant()) {
1804 * A dereference is being used on the right hand side, which means we
1805 * must emit a variable load.
1808 enum gl_access_qualifier access
= deref_get_qualifier(this->deref
);
1809 this->result
= nir_load_deref_with_access(&b
, this->deref
, access
);
1812 return this->result
;
1816 type_is_float(glsl_base_type type
)
1818 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1819 type
== GLSL_TYPE_FLOAT16
;
1823 type_is_signed(glsl_base_type type
)
1825 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1826 type
== GLSL_TYPE_INT16
;
1830 nir_visitor::visit(ir_expression
*ir
)
1832 /* Some special cases */
1833 switch (ir
->operation
) {
1834 case ir_binop_ubo_load
: {
1835 nir_intrinsic_instr
*load
=
1836 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1837 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1838 glsl_get_bit_size(ir
->type
);
1839 load
->num_components
= ir
->type
->vector_elements
;
1840 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1841 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1842 intrinsic_set_std430_align(load
, ir
->type
);
1843 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1846 * In UBO's, a true boolean value is any non-zero value, but we consider
1847 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1850 if (ir
->type
->is_boolean())
1851 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1856 case ir_unop_interpolate_at_centroid
:
1857 case ir_binop_interpolate_at_offset
:
1858 case ir_binop_interpolate_at_sample
: {
1859 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1860 ir_swizzle
*swizzle
= NULL
;
1862 /* the api does not allow a swizzle here, but the varying packing code
1863 * may have pushed one into here.
1865 swizzle
= ir
->operands
[0]->as_swizzle();
1867 deref
= swizzle
->val
->as_dereference();
1871 deref
->accept(this);
1873 nir_intrinsic_op op
;
1874 if (this->deref
->mode
== nir_var_shader_in
) {
1875 switch (ir
->operation
) {
1876 case ir_unop_interpolate_at_centroid
:
1877 op
= nir_intrinsic_interp_deref_at_centroid
;
1879 case ir_binop_interpolate_at_offset
:
1880 op
= nir_intrinsic_interp_deref_at_offset
;
1882 case ir_binop_interpolate_at_sample
:
1883 op
= nir_intrinsic_interp_deref_at_sample
;
1886 unreachable("Invalid interpolation intrinsic");
1889 /* This case can happen if the vertex shader does not write the
1890 * given varying. In this case, the linker will lower it to a
1891 * global variable. Since interpolating a variable makes no
1892 * sense, we'll just turn it into a load which will probably
1893 * eventually end up as an SSA definition.
1895 assert(this->deref
->mode
== nir_var_shader_temp
);
1896 op
= nir_intrinsic_load_deref
;
1899 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1900 intrin
->num_components
= deref
->type
->vector_elements
;
1901 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1903 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1904 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1905 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1907 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1908 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1911 unsigned swiz
[4] = {
1912 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1915 result
= nir_swizzle(&b
, result
, swiz
,
1916 swizzle
->type
->vector_elements
);
1922 case ir_unop_ssbo_unsized_array_length
: {
1923 nir_intrinsic_instr
*intrin
=
1924 nir_intrinsic_instr_create(b
.shader
,
1925 nir_intrinsic_deref_buffer_array_length
);
1927 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1928 intrin
->src
[0] = nir_src_for_ssa(&evaluate_deref(deref
)->dest
.ssa
);
1930 add_instr(&intrin
->instr
, 1, 32);
1938 nir_ssa_def
*srcs
[4];
1939 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1940 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1942 glsl_base_type types
[4];
1943 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1944 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1946 glsl_base_type out_type
= ir
->type
->base_type
;
1948 switch (ir
->operation
) {
1949 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1950 case ir_unop_logic_not
:
1951 result
= nir_inot(&b
, srcs
[0]);
1954 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1955 : nir_ineg(&b
, srcs
[0]);
1958 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1959 : nir_iabs(&b
, srcs
[0]);
1961 case ir_unop_saturate
:
1962 assert(type_is_float(types
[0]));
1963 result
= nir_fsat(&b
, srcs
[0]);
1966 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1967 : nir_isign(&b
, srcs
[0]);
1969 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1970 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1971 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1972 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1973 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1974 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1975 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
2011 case ir_unop_i642u64
:
2012 case ir_unop_u642i64
: {
2013 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
2014 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
2015 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
2016 nir_rounding_mode_undef
),
2017 srcs
[0], NULL
, NULL
, NULL
);
2018 /* b2i and b2f don't have fixed bit-size versions so the builder will
2019 * just assume 32 and we have to fix it up here.
2021 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
2025 case ir_unop_bitcast_i2f
:
2026 case ir_unop_bitcast_f2i
:
2027 case ir_unop_bitcast_u2f
:
2028 case ir_unop_bitcast_f2u
:
2029 case ir_unop_bitcast_i642d
:
2030 case ir_unop_bitcast_d2i64
:
2031 case ir_unop_bitcast_u642d
:
2032 case ir_unop_bitcast_d2u64
:
2033 case ir_unop_subroutine_to_int
:
2035 result
= nir_mov(&b
, srcs
[0]);
2037 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
2038 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
2039 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
2040 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
2041 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
2042 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
2043 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
2044 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
2045 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
2046 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
2047 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
2048 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
2049 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
2050 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
2051 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
2052 case ir_unop_pack_snorm_2x16
:
2053 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
2055 case ir_unop_pack_snorm_4x8
:
2056 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
2058 case ir_unop_pack_unorm_2x16
:
2059 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
2061 case ir_unop_pack_unorm_4x8
:
2062 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
2064 case ir_unop_pack_half_2x16
:
2065 result
= nir_pack_half_2x16(&b
, srcs
[0]);
2067 case ir_unop_unpack_snorm_2x16
:
2068 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
2070 case ir_unop_unpack_snorm_4x8
:
2071 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
2073 case ir_unop_unpack_unorm_2x16
:
2074 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
2076 case ir_unop_unpack_unorm_4x8
:
2077 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
2079 case ir_unop_unpack_half_2x16
:
2080 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
2082 case ir_unop_pack_sampler_2x32
:
2083 case ir_unop_pack_image_2x32
:
2084 case ir_unop_pack_double_2x32
:
2085 case ir_unop_pack_int_2x32
:
2086 case ir_unop_pack_uint_2x32
:
2087 result
= nir_pack_64_2x32(&b
, srcs
[0]);
2089 case ir_unop_unpack_sampler_2x32
:
2090 case ir_unop_unpack_image_2x32
:
2091 case ir_unop_unpack_double_2x32
:
2092 case ir_unop_unpack_int_2x32
:
2093 case ir_unop_unpack_uint_2x32
:
2094 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
2096 case ir_unop_bitfield_reverse
:
2097 result
= nir_bitfield_reverse(&b
, srcs
[0]);
2099 case ir_unop_bit_count
:
2100 result
= nir_bit_count(&b
, srcs
[0]);
2102 case ir_unop_find_msb
:
2104 case GLSL_TYPE_UINT
:
2105 result
= nir_ufind_msb(&b
, srcs
[0]);
2108 result
= nir_ifind_msb(&b
, srcs
[0]);
2111 unreachable("Invalid type for findMSB()");
2114 case ir_unop_find_lsb
:
2115 result
= nir_find_lsb(&b
, srcs
[0]);
2119 switch (ir
->type
->vector_elements
) {
2121 switch (ir
->operands
[0]->type
->vector_elements
) {
2122 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
2123 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
2124 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
2125 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
2126 default: unreachable("not reached");
2130 switch (ir
->operands
[0]->type
->vector_elements
) {
2131 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
2132 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
2133 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
2134 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
2135 default: unreachable("not reached");
2139 switch (ir
->operands
[0]->type
->vector_elements
) {
2140 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
2141 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
2142 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
2143 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
2144 default: unreachable("not reached");
2148 switch (ir
->operands
[0]->type
->vector_elements
) {
2149 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
2150 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
2151 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
2152 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
2153 default: unreachable("not reached");
2157 unreachable("not reached");
2160 case ir_unop_get_buffer_size
: {
2161 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
2163 nir_intrinsic_get_buffer_size
);
2164 load
->num_components
= ir
->type
->vector_elements
;
2165 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
2166 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2167 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
2172 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
2173 : nir_iadd(&b
, srcs
[0], srcs
[1]);
2176 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
2177 : nir_isub(&b
, srcs
[0], srcs
[1]);
2180 if (type_is_float(out_type
))
2181 result
= nir_fmul(&b
, srcs
[0], srcs
[1]);
2182 else if (out_type
== GLSL_TYPE_INT64
&&
2183 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
||
2184 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
))
2185 result
= nir_imul_2x32_64(&b
, srcs
[0], srcs
[1]);
2186 else if (out_type
== GLSL_TYPE_UINT64
&&
2187 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
||
2188 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_UINT
))
2189 result
= nir_umul_2x32_64(&b
, srcs
[0], srcs
[1]);
2191 result
= nir_imul(&b
, srcs
[0], srcs
[1]);
2194 if (type_is_float(out_type
))
2195 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
2196 else if (type_is_signed(out_type
))
2197 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
2199 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
2202 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
2203 : nir_umod(&b
, srcs
[0], srcs
[1]);
2206 if (type_is_float(out_type
))
2207 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
2208 else if (type_is_signed(out_type
))
2209 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
2211 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
2214 if (type_is_float(out_type
))
2215 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
2216 else if (type_is_signed(out_type
))
2217 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
2219 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
2221 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
2222 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
2223 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
2224 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
2225 case ir_binop_logic_and
:
2226 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
2228 case ir_binop_logic_or
:
2229 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
2231 case ir_binop_logic_xor
:
2232 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
2234 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
2235 case ir_binop_rshift
:
2236 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
2237 : nir_ushr(&b
, srcs
[0], srcs
[1]);
2239 case ir_binop_imul_high
:
2240 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
2241 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
2243 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
2244 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
2246 if (type_is_float(types
[0]))
2247 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
2248 else if (type_is_signed(types
[0]))
2249 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
2251 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
2253 case ir_binop_gequal
:
2254 if (type_is_float(types
[0]))
2255 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
2256 else if (type_is_signed(types
[0]))
2257 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
2259 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
2261 case ir_binop_equal
:
2262 if (type_is_float(types
[0]))
2263 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
2265 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
2267 case ir_binop_nequal
:
2268 if (type_is_float(types
[0]))
2269 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
2271 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
2273 case ir_binop_all_equal
:
2274 if (type_is_float(types
[0])) {
2275 switch (ir
->operands
[0]->type
->vector_elements
) {
2276 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
2277 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
2278 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
2279 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
2281 unreachable("not reached");
2284 switch (ir
->operands
[0]->type
->vector_elements
) {
2285 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
2286 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
2287 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
2288 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
2290 unreachable("not reached");
2294 case ir_binop_any_nequal
:
2295 if (type_is_float(types
[0])) {
2296 switch (ir
->operands
[0]->type
->vector_elements
) {
2297 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
2298 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
2299 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
2300 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
2302 unreachable("not reached");
2305 switch (ir
->operands
[0]->type
->vector_elements
) {
2306 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
2307 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
2308 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
2309 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
2311 unreachable("not reached");
2316 switch (ir
->operands
[0]->type
->vector_elements
) {
2317 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2318 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2319 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2321 unreachable("not reached");
2324 case ir_binop_vector_extract
: {
2325 result
= nir_channel(&b
, srcs
[0], 0);
2326 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2327 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2328 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2334 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2336 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2339 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2342 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2344 case ir_triop_bitfield_extract
:
2345 result
= (out_type
== GLSL_TYPE_INT
) ?
2346 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2347 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2349 case ir_quadop_bitfield_insert
:
2350 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2352 case ir_quadop_vector
:
2353 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2357 unreachable("not reached");
2362 nir_visitor::visit(ir_swizzle
*ir
)
2364 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2365 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2366 ir
->type
->vector_elements
);
2370 nir_visitor::visit(ir_texture
*ir
)
2377 num_srcs
= 1; /* coordinate */
2382 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2383 num_srcs
= 2; /* coordinate, bias/lod */
2387 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2393 if (ir
->lod_info
.lod
!= NULL
)
2394 num_srcs
= 2; /* coordinate, lod */
2396 num_srcs
= 1; /* coordinate */
2400 op
= nir_texop_txf_ms
;
2401 num_srcs
= 2; /* coordinate, sample_index */
2406 if (ir
->lod_info
.lod
!= NULL
)
2407 num_srcs
= 1; /* lod */
2414 num_srcs
= 1; /* coordinate */
2419 num_srcs
= 1; /* coordinate */
2422 case ir_query_levels
:
2423 op
= nir_texop_query_levels
;
2427 case ir_texture_samples
:
2428 op
= nir_texop_texture_samples
;
2432 case ir_samples_identical
:
2433 op
= nir_texop_samples_identical
;
2434 num_srcs
= 1; /* coordinate */
2438 unreachable("not reached");
2441 if (ir
->projector
!= NULL
)
2443 if (ir
->shadow_comparator
!= NULL
)
2445 /* offsets are constants we store inside nir_tex_intrs.offsets */
2446 if (ir
->offset
!= NULL
&& !ir
->offset
->type
->is_array())
2449 /* Add one for the texture deref */
2452 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2455 instr
->sampler_dim
=
2456 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2457 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2458 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2459 if (instr
->is_shadow
)
2460 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2461 switch (ir
->type
->base_type
) {
2462 case GLSL_TYPE_FLOAT
:
2463 instr
->dest_type
= nir_type_float
;
2466 instr
->dest_type
= nir_type_int
;
2468 case GLSL_TYPE_BOOL
:
2469 case GLSL_TYPE_UINT
:
2470 instr
->dest_type
= nir_type_uint
;
2473 unreachable("not reached");
2476 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2478 /* check for bindless handles */
2479 if (sampler_deref
->mode
!= nir_var_uniform
||
2480 nir_deref_instr_get_variable(sampler_deref
)->data
.bindless
) {
2481 nir_ssa_def
*load
= nir_load_deref(&b
, sampler_deref
);
2482 instr
->src
[0].src
= nir_src_for_ssa(load
);
2483 instr
->src
[0].src_type
= nir_tex_src_texture_handle
;
2484 instr
->src
[1].src
= nir_src_for_ssa(load
);
2485 instr
->src
[1].src_type
= nir_tex_src_sampler_handle
;
2487 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2488 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2489 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2490 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2493 unsigned src_number
= 2;
2495 if (ir
->coordinate
!= NULL
) {
2496 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2497 instr
->src
[src_number
].src
=
2498 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2499 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2503 if (ir
->projector
!= NULL
) {
2504 instr
->src
[src_number
].src
=
2505 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2506 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2510 if (ir
->shadow_comparator
!= NULL
) {
2511 instr
->src
[src_number
].src
=
2512 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2513 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2517 if (ir
->offset
!= NULL
) {
2518 if (ir
->offset
->type
->is_array()) {
2519 for (int i
= 0; i
< ir
->offset
->type
->array_size(); i
++) {
2520 const ir_constant
*c
=
2521 ir
->offset
->as_constant()->get_array_element(i
);
2523 for (unsigned j
= 0; j
< 2; ++j
) {
2524 int val
= c
->get_int_component(j
);
2525 assert(val
<= 31 && val
>= -32);
2526 instr
->tg4_offsets
[i
][j
] = val
;
2530 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2532 instr
->src
[src_number
].src
=
2533 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2534 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2541 instr
->src
[src_number
].src
=
2542 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2543 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2550 if (ir
->lod_info
.lod
!= NULL
) {
2551 instr
->src
[src_number
].src
=
2552 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2553 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2559 instr
->src
[src_number
].src
=
2560 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2561 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2563 instr
->src
[src_number
].src
=
2564 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2565 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2570 instr
->src
[src_number
].src
=
2571 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2572 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2577 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2584 assert(src_number
== num_srcs
);
2586 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2587 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2591 nir_visitor::visit(ir_constant
*ir
)
2594 * We don't know if this variable is an array or struct that gets
2595 * dereferenced, so do the safe thing an make it a variable with a
2596 * constant initializer and return a dereference.
2600 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2601 var
->data
.read_only
= true;
2602 var
->constant_initializer
= constant_copy(ir
, var
);
2604 this->deref
= nir_build_deref_var(&b
, var
);
2608 nir_visitor::visit(ir_dereference_variable
*ir
)
2610 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2611 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2613 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2614 if (param
== ir
->variable_referenced()) {
2620 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2621 nir_var_function_temp
, ir
->type
, 0);
2625 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2627 struct hash_entry
*entry
=
2628 _mesa_hash_table_search(this->var_table
, ir
->var
);
2630 nir_variable
*var
= (nir_variable
*) entry
->data
;
2632 this->deref
= nir_build_deref_var(&b
, var
);
2636 nir_visitor::visit(ir_dereference_record
*ir
)
2638 ir
->record
->accept(this);
2640 int field_index
= ir
->field_idx
;
2641 assert(field_index
>= 0);
2643 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2647 nir_visitor::visit(ir_dereference_array
*ir
)
2649 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2651 ir
->array
->accept(this);
2653 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2657 nir_visitor::visit(ir_barrier
*)
2659 nir_intrinsic_instr
*instr
=
2660 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2661 nir_builder_instr_insert(&b
, &instr
->instr
);
2665 glsl_float64_funcs_to_nir(struct gl_context
*ctx
,
2666 const nir_shader_compiler_options
*options
)
2668 /* We pretend it's a vertex shader. Ultimately, the stage shouldn't
2669 * matter because we're not optimizing anything here.
2671 struct gl_shader
*sh
= _mesa_new_shader(-1, MESA_SHADER_VERTEX
);
2672 sh
->Source
= float64_source
;
2673 sh
->CompileStatus
= COMPILE_FAILURE
;
2674 _mesa_glsl_compile_shader(ctx
, sh
, false, false, true);
2676 if (!sh
->CompileStatus
) {
2679 "fp64 software impl compile failed:\n%s\nsource:\n%s\n",
2680 sh
->InfoLog
, float64_source
);
2685 nir_shader
*nir
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, options
, NULL
);
2687 nir_visitor
v1(ctx
, nir
);
2688 nir_function_visitor
v2(&v1
);
2690 visit_exec_list(sh
->ir
, &v1
);
2692 /* _mesa_delete_shader will try to free sh->Source but it's static const */
2694 _mesa_delete_shader(ctx
, sh
);
2696 nir_validate_shader(nir
, "float64_funcs_to_nir");
2698 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
2699 NIR_PASS_V(nir
, nir_lower_returns
);
2700 NIR_PASS_V(nir
, nir_inline_functions
);
2701 NIR_PASS_V(nir
, nir_opt_deref
);
2703 /* Do some optimizations to clean up the shader now. By optimizing the
2704 * functions in the library, we avoid having to re-do that work every
2705 * time we inline a copy of a function. Reducing basic blocks also helps
2706 * with compile times.
2708 NIR_PASS_V(nir
, nir_lower_vars_to_ssa
);
2709 NIR_PASS_V(nir
, nir_copy_prop
);
2710 NIR_PASS_V(nir
, nir_opt_dce
);
2711 NIR_PASS_V(nir
, nir_opt_cse
);
2712 NIR_PASS_V(nir
, nir_opt_gcm
, true);
2713 NIR_PASS_V(nir
, nir_opt_peephole_select
, 1, false, false);
2714 NIR_PASS_V(nir
, nir_opt_dce
);