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 op
= nir_intrinsic_image_deref_atomic_min
;
975 case ir_intrinsic_image_atomic_max
:
976 op
= nir_intrinsic_image_deref_atomic_max
;
978 case ir_intrinsic_image_atomic_and
:
979 op
= nir_intrinsic_image_deref_atomic_and
;
981 case ir_intrinsic_image_atomic_or
:
982 op
= nir_intrinsic_image_deref_atomic_or
;
984 case ir_intrinsic_image_atomic_xor
:
985 op
= nir_intrinsic_image_deref_atomic_xor
;
987 case ir_intrinsic_image_atomic_exchange
:
988 op
= nir_intrinsic_image_deref_atomic_exchange
;
990 case ir_intrinsic_image_atomic_comp_swap
:
991 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
993 case ir_intrinsic_image_atomic_inc_wrap
:
994 op
= nir_intrinsic_image_deref_atomic_inc_wrap
;
996 case ir_intrinsic_image_atomic_dec_wrap
:
997 op
= nir_intrinsic_image_deref_atomic_dec_wrap
;
999 case ir_intrinsic_memory_barrier
:
1000 op
= nir_intrinsic_memory_barrier
;
1002 case ir_intrinsic_image_size
:
1003 op
= nir_intrinsic_image_deref_size
;
1005 case ir_intrinsic_image_samples
:
1006 op
= nir_intrinsic_image_deref_samples
;
1008 case ir_intrinsic_ssbo_store
:
1009 op
= nir_intrinsic_store_ssbo
;
1011 case ir_intrinsic_ssbo_load
:
1012 op
= nir_intrinsic_load_ssbo
;
1014 case ir_intrinsic_ssbo_atomic_add
:
1015 op
= ir
->return_deref
->type
->is_integer_32_64()
1016 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
1018 case ir_intrinsic_ssbo_atomic_and
:
1019 op
= nir_intrinsic_ssbo_atomic_and
;
1021 case ir_intrinsic_ssbo_atomic_or
:
1022 op
= nir_intrinsic_ssbo_atomic_or
;
1024 case ir_intrinsic_ssbo_atomic_xor
:
1025 op
= nir_intrinsic_ssbo_atomic_xor
;
1027 case ir_intrinsic_ssbo_atomic_min
:
1028 assert(ir
->return_deref
);
1029 if (ir
->return_deref
->type
== glsl_type::int_type
)
1030 op
= nir_intrinsic_ssbo_atomic_imin
;
1031 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1032 op
= nir_intrinsic_ssbo_atomic_umin
;
1033 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1034 op
= nir_intrinsic_ssbo_atomic_fmin
;
1036 unreachable("Invalid type");
1038 case ir_intrinsic_ssbo_atomic_max
:
1039 assert(ir
->return_deref
);
1040 if (ir
->return_deref
->type
== glsl_type::int_type
)
1041 op
= nir_intrinsic_ssbo_atomic_imax
;
1042 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1043 op
= nir_intrinsic_ssbo_atomic_umax
;
1044 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1045 op
= nir_intrinsic_ssbo_atomic_fmax
;
1047 unreachable("Invalid type");
1049 case ir_intrinsic_ssbo_atomic_exchange
:
1050 op
= nir_intrinsic_ssbo_atomic_exchange
;
1052 case ir_intrinsic_ssbo_atomic_comp_swap
:
1053 op
= ir
->return_deref
->type
->is_integer_32_64()
1054 ? nir_intrinsic_ssbo_atomic_comp_swap
1055 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
1057 case ir_intrinsic_shader_clock
:
1058 op
= nir_intrinsic_shader_clock
;
1060 case ir_intrinsic_begin_invocation_interlock
:
1061 op
= nir_intrinsic_begin_invocation_interlock
;
1063 case ir_intrinsic_end_invocation_interlock
:
1064 op
= nir_intrinsic_end_invocation_interlock
;
1066 case ir_intrinsic_group_memory_barrier
:
1067 op
= nir_intrinsic_group_memory_barrier
;
1069 case ir_intrinsic_memory_barrier_atomic_counter
:
1070 op
= nir_intrinsic_memory_barrier_atomic_counter
;
1072 case ir_intrinsic_memory_barrier_buffer
:
1073 op
= nir_intrinsic_memory_barrier_buffer
;
1075 case ir_intrinsic_memory_barrier_image
:
1076 op
= nir_intrinsic_memory_barrier_image
;
1078 case ir_intrinsic_memory_barrier_shared
:
1079 op
= nir_intrinsic_memory_barrier_shared
;
1081 case ir_intrinsic_shared_load
:
1082 op
= nir_intrinsic_load_shared
;
1084 case ir_intrinsic_shared_store
:
1085 op
= nir_intrinsic_store_shared
;
1087 case ir_intrinsic_shared_atomic_add
:
1088 op
= ir
->return_deref
->type
->is_integer_32_64()
1089 ? nir_intrinsic_shared_atomic_add
1090 : nir_intrinsic_shared_atomic_fadd
;
1092 case ir_intrinsic_shared_atomic_and
:
1093 op
= nir_intrinsic_shared_atomic_and
;
1095 case ir_intrinsic_shared_atomic_or
:
1096 op
= nir_intrinsic_shared_atomic_or
;
1098 case ir_intrinsic_shared_atomic_xor
:
1099 op
= nir_intrinsic_shared_atomic_xor
;
1101 case ir_intrinsic_shared_atomic_min
:
1102 assert(ir
->return_deref
);
1103 if (ir
->return_deref
->type
== glsl_type::int_type
)
1104 op
= nir_intrinsic_shared_atomic_imin
;
1105 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1106 op
= nir_intrinsic_shared_atomic_umin
;
1107 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1108 op
= nir_intrinsic_shared_atomic_fmin
;
1110 unreachable("Invalid type");
1112 case ir_intrinsic_shared_atomic_max
:
1113 assert(ir
->return_deref
);
1114 if (ir
->return_deref
->type
== glsl_type::int_type
)
1115 op
= nir_intrinsic_shared_atomic_imax
;
1116 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1117 op
= nir_intrinsic_shared_atomic_umax
;
1118 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1119 op
= nir_intrinsic_shared_atomic_fmax
;
1121 unreachable("Invalid type");
1123 case ir_intrinsic_shared_atomic_exchange
:
1124 op
= nir_intrinsic_shared_atomic_exchange
;
1126 case ir_intrinsic_shared_atomic_comp_swap
:
1127 op
= ir
->return_deref
->type
->is_integer_32_64()
1128 ? nir_intrinsic_shared_atomic_comp_swap
1129 : nir_intrinsic_shared_atomic_fcomp_swap
;
1131 case ir_intrinsic_vote_any
:
1132 op
= nir_intrinsic_vote_any
;
1134 case ir_intrinsic_vote_all
:
1135 op
= nir_intrinsic_vote_all
;
1137 case ir_intrinsic_vote_eq
:
1138 op
= nir_intrinsic_vote_ieq
;
1140 case ir_intrinsic_ballot
:
1141 op
= nir_intrinsic_ballot
;
1143 case ir_intrinsic_read_invocation
:
1144 op
= nir_intrinsic_read_invocation
;
1146 case ir_intrinsic_read_first_invocation
:
1147 op
= nir_intrinsic_read_first_invocation
;
1150 unreachable("not reached");
1153 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
1154 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
1157 case nir_intrinsic_deref_atomic_add
:
1158 case nir_intrinsic_deref_atomic_imin
:
1159 case nir_intrinsic_deref_atomic_umin
:
1160 case nir_intrinsic_deref_atomic_imax
:
1161 case nir_intrinsic_deref_atomic_umax
:
1162 case nir_intrinsic_deref_atomic_and
:
1163 case nir_intrinsic_deref_atomic_or
:
1164 case nir_intrinsic_deref_atomic_xor
:
1165 case nir_intrinsic_deref_atomic_exchange
:
1166 case nir_intrinsic_deref_atomic_comp_swap
:
1167 case nir_intrinsic_deref_atomic_fadd
:
1168 case nir_intrinsic_deref_atomic_fmin
:
1169 case nir_intrinsic_deref_atomic_fmax
:
1170 case nir_intrinsic_deref_atomic_fcomp_swap
: {
1171 int param_count
= ir
->actual_parameters
.length();
1172 assert(param_count
== 2 || param_count
== 3);
1175 exec_node
*param
= ir
->actual_parameters
.get_head();
1176 ir_rvalue
*rvalue
= (ir_rvalue
*) param
;
1177 ir_dereference
*deref
= rvalue
->as_dereference();
1178 ir_swizzle
*swizzle
= NULL
;
1180 /* We may have a swizzle to pick off a single vec4 component */
1181 swizzle
= rvalue
->as_swizzle();
1182 assert(swizzle
&& swizzle
->type
->vector_elements
== 1);
1183 deref
= swizzle
->val
->as_dereference();
1186 nir_deref_instr
*nir_deref
= evaluate_deref(deref
);
1188 nir_deref
= nir_build_deref_array_imm(&b
, nir_deref
,
1191 instr
->src
[0] = nir_src_for_ssa(&nir_deref
->dest
.ssa
);
1193 nir_intrinsic_set_access(instr
, deref_get_qualifier(nir_deref
));
1195 /* data1 parameter (this is always present) */
1196 param
= param
->get_next();
1197 ir_instruction
*inst
= (ir_instruction
*) param
;
1198 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1200 /* data2 parameter (only with atomic_comp_swap) */
1201 if (param_count
== 3) {
1202 assert(op
== nir_intrinsic_deref_atomic_comp_swap
||
1203 op
== nir_intrinsic_deref_atomic_fcomp_swap
);
1204 param
= param
->get_next();
1205 inst
= (ir_instruction
*) param
;
1206 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1210 assert(ir
->return_deref
);
1211 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1212 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1213 nir_builder_instr_insert(&b
, &instr
->instr
);
1216 case nir_intrinsic_atomic_counter_read_deref
:
1217 case nir_intrinsic_atomic_counter_inc_deref
:
1218 case nir_intrinsic_atomic_counter_pre_dec_deref
:
1219 case nir_intrinsic_atomic_counter_add_deref
:
1220 case nir_intrinsic_atomic_counter_min_deref
:
1221 case nir_intrinsic_atomic_counter_max_deref
:
1222 case nir_intrinsic_atomic_counter_and_deref
:
1223 case nir_intrinsic_atomic_counter_or_deref
:
1224 case nir_intrinsic_atomic_counter_xor_deref
:
1225 case nir_intrinsic_atomic_counter_exchange_deref
:
1226 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
1227 /* Set the counter variable dereference. */
1228 exec_node
*param
= ir
->actual_parameters
.get_head();
1229 ir_dereference
*counter
= (ir_dereference
*)param
;
1231 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
1232 param
= param
->get_next();
1234 /* Set the intrinsic destination. */
1235 if (ir
->return_deref
) {
1236 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1239 /* Set the intrinsic parameters. */
1240 if (!param
->is_tail_sentinel()) {
1242 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1243 param
= param
->get_next();
1246 if (!param
->is_tail_sentinel()) {
1248 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1249 param
= param
->get_next();
1252 nir_builder_instr_insert(&b
, &instr
->instr
);
1255 case nir_intrinsic_image_deref_load
:
1256 case nir_intrinsic_image_deref_store
:
1257 case nir_intrinsic_image_deref_atomic_add
:
1258 case nir_intrinsic_image_deref_atomic_min
:
1259 case nir_intrinsic_image_deref_atomic_max
:
1260 case nir_intrinsic_image_deref_atomic_and
:
1261 case nir_intrinsic_image_deref_atomic_or
:
1262 case nir_intrinsic_image_deref_atomic_xor
:
1263 case nir_intrinsic_image_deref_atomic_exchange
:
1264 case nir_intrinsic_image_deref_atomic_comp_swap
:
1265 case nir_intrinsic_image_deref_atomic_fadd
:
1266 case nir_intrinsic_image_deref_samples
:
1267 case nir_intrinsic_image_deref_size
:
1268 case nir_intrinsic_image_deref_atomic_inc_wrap
:
1269 case nir_intrinsic_image_deref_atomic_dec_wrap
: {
1270 nir_ssa_undef_instr
*instr_undef
=
1271 nir_ssa_undef_instr_create(shader
, 1, 32);
1272 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
1274 /* Set the image variable dereference. */
1275 exec_node
*param
= ir
->actual_parameters
.get_head();
1276 ir_dereference
*image
= (ir_dereference
*)param
;
1277 nir_deref_instr
*deref
= evaluate_deref(image
);
1278 const glsl_type
*type
= deref
->type
;
1280 nir_intrinsic_set_access(instr
, deref_get_qualifier(deref
));
1282 instr
->src
[0] = nir_src_for_ssa(&deref
->dest
.ssa
);
1283 param
= param
->get_next();
1285 /* Set the intrinsic destination. */
1286 if (ir
->return_deref
) {
1287 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
1288 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1289 num_components
, 32, NULL
);
1292 if (op
== nir_intrinsic_image_deref_size
) {
1293 instr
->num_components
= instr
->dest
.ssa
.num_components
;
1294 } else if (op
== nir_intrinsic_image_deref_load
||
1295 op
== nir_intrinsic_image_deref_store
) {
1296 instr
->num_components
= 4;
1299 if (op
== nir_intrinsic_image_deref_size
||
1300 op
== nir_intrinsic_image_deref_samples
) {
1301 nir_builder_instr_insert(&b
, &instr
->instr
);
1305 /* Set the address argument, extending the coordinate vector to four
1308 nir_ssa_def
*src_addr
=
1309 evaluate_rvalue((ir_dereference
*)param
);
1310 nir_ssa_def
*srcs
[4];
1312 for (int i
= 0; i
< 4; i
++) {
1313 if (i
< type
->coordinate_components())
1314 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1316 srcs
[i
] = &instr_undef
->def
;
1319 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1320 param
= param
->get_next();
1322 /* Set the sample argument, which is undefined for single-sample
1325 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1327 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1328 param
= param
->get_next();
1330 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1333 /* Set the intrinsic parameters. */
1334 if (!param
->is_tail_sentinel()) {
1336 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1337 param
= param
->get_next();
1340 if (!param
->is_tail_sentinel()) {
1342 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1343 param
= param
->get_next();
1345 nir_builder_instr_insert(&b
, &instr
->instr
);
1348 case nir_intrinsic_memory_barrier
:
1349 case nir_intrinsic_group_memory_barrier
:
1350 case nir_intrinsic_memory_barrier_atomic_counter
:
1351 case nir_intrinsic_memory_barrier_buffer
:
1352 case nir_intrinsic_memory_barrier_image
:
1353 case nir_intrinsic_memory_barrier_shared
:
1354 nir_builder_instr_insert(&b
, &instr
->instr
);
1356 case nir_intrinsic_shader_clock
:
1357 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1358 instr
->num_components
= 2;
1359 nir_builder_instr_insert(&b
, &instr
->instr
);
1361 case nir_intrinsic_begin_invocation_interlock
:
1362 nir_builder_instr_insert(&b
, &instr
->instr
);
1364 case nir_intrinsic_end_invocation_interlock
:
1365 nir_builder_instr_insert(&b
, &instr
->instr
);
1367 case nir_intrinsic_store_ssbo
: {
1368 exec_node
*param
= ir
->actual_parameters
.get_head();
1369 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1371 param
= param
->get_next();
1372 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1374 param
= param
->get_next();
1375 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1377 param
= param
->get_next();
1378 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1381 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1382 if (val
->type
->is_boolean())
1383 nir_val
= nir_b2i32(&b
, nir_val
);
1385 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1386 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1387 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1388 intrinsic_set_std430_align(instr
, val
->type
);
1389 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1390 instr
->num_components
= val
->type
->vector_elements
;
1392 nir_builder_instr_insert(&b
, &instr
->instr
);
1395 case nir_intrinsic_load_ssbo
: {
1396 exec_node
*param
= ir
->actual_parameters
.get_head();
1397 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1399 param
= param
->get_next();
1400 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1402 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1403 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1405 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1406 instr
->num_components
= type
->vector_elements
;
1407 intrinsic_set_std430_align(instr
, type
);
1409 /* Setup destination register */
1410 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1411 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1412 type
->vector_elements
, bit_size
, NULL
);
1414 /* Insert the created nir instruction now since in the case of boolean
1415 * result we will need to emit another instruction after it
1417 nir_builder_instr_insert(&b
, &instr
->instr
);
1420 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1421 * consider a true boolean to be ~0. Fix this up with a != 0
1424 if (type
->is_boolean())
1425 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1428 case nir_intrinsic_ssbo_atomic_add
:
1429 case nir_intrinsic_ssbo_atomic_imin
:
1430 case nir_intrinsic_ssbo_atomic_umin
:
1431 case nir_intrinsic_ssbo_atomic_imax
:
1432 case nir_intrinsic_ssbo_atomic_umax
:
1433 case nir_intrinsic_ssbo_atomic_and
:
1434 case nir_intrinsic_ssbo_atomic_or
:
1435 case nir_intrinsic_ssbo_atomic_xor
:
1436 case nir_intrinsic_ssbo_atomic_exchange
:
1437 case nir_intrinsic_ssbo_atomic_comp_swap
:
1438 case nir_intrinsic_ssbo_atomic_fadd
:
1439 case nir_intrinsic_ssbo_atomic_fmin
:
1440 case nir_intrinsic_ssbo_atomic_fmax
:
1441 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1442 int param_count
= ir
->actual_parameters
.length();
1443 assert(param_count
== 3 || param_count
== 4);
1446 exec_node
*param
= ir
->actual_parameters
.get_head();
1447 ir_instruction
*inst
= (ir_instruction
*) param
;
1448 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1451 param
= param
->get_next();
1452 inst
= (ir_instruction
*) param
;
1453 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1455 /* data1 parameter (this is always present) */
1456 param
= param
->get_next();
1457 inst
= (ir_instruction
*) param
;
1458 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1460 /* data2 parameter (only with atomic_comp_swap) */
1461 if (param_count
== 4) {
1462 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1463 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1464 param
= param
->get_next();
1465 inst
= (ir_instruction
*) param
;
1466 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1470 assert(ir
->return_deref
);
1471 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1472 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1473 nir_builder_instr_insert(&b
, &instr
->instr
);
1476 case nir_intrinsic_load_shared
: {
1477 exec_node
*param
= ir
->actual_parameters
.get_head();
1478 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1480 nir_intrinsic_set_base(instr
, 0);
1481 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1483 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1484 instr
->num_components
= type
->vector_elements
;
1485 intrinsic_set_std430_align(instr
, type
);
1487 /* Setup destination register */
1488 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1489 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1490 type
->vector_elements
, bit_size
, NULL
);
1492 nir_builder_instr_insert(&b
, &instr
->instr
);
1494 /* The value in shared memory is a 32-bit value */
1495 if (type
->is_boolean())
1496 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1499 case nir_intrinsic_store_shared
: {
1500 exec_node
*param
= ir
->actual_parameters
.get_head();
1501 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1503 param
= param
->get_next();
1504 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1506 param
= param
->get_next();
1507 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1510 nir_intrinsic_set_base(instr
, 0);
1511 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1513 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1515 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1516 /* The value in shared memory is a 32-bit value */
1517 if (val
->type
->is_boolean())
1518 nir_val
= nir_b2i32(&b
, nir_val
);
1520 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1521 instr
->num_components
= val
->type
->vector_elements
;
1522 intrinsic_set_std430_align(instr
, val
->type
);
1524 nir_builder_instr_insert(&b
, &instr
->instr
);
1527 case nir_intrinsic_shared_atomic_add
:
1528 case nir_intrinsic_shared_atomic_imin
:
1529 case nir_intrinsic_shared_atomic_umin
:
1530 case nir_intrinsic_shared_atomic_imax
:
1531 case nir_intrinsic_shared_atomic_umax
:
1532 case nir_intrinsic_shared_atomic_and
:
1533 case nir_intrinsic_shared_atomic_or
:
1534 case nir_intrinsic_shared_atomic_xor
:
1535 case nir_intrinsic_shared_atomic_exchange
:
1536 case nir_intrinsic_shared_atomic_comp_swap
:
1537 case nir_intrinsic_shared_atomic_fadd
:
1538 case nir_intrinsic_shared_atomic_fmin
:
1539 case nir_intrinsic_shared_atomic_fmax
:
1540 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1541 int param_count
= ir
->actual_parameters
.length();
1542 assert(param_count
== 2 || param_count
== 3);
1545 exec_node
*param
= ir
->actual_parameters
.get_head();
1546 ir_instruction
*inst
= (ir_instruction
*) param
;
1547 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1549 /* data1 parameter (this is always present) */
1550 param
= param
->get_next();
1551 inst
= (ir_instruction
*) param
;
1552 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1554 /* data2 parameter (only with atomic_comp_swap) */
1555 if (param_count
== 3) {
1556 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1557 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1558 param
= param
->get_next();
1559 inst
= (ir_instruction
*) param
;
1561 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1565 assert(ir
->return_deref
);
1566 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1567 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1568 ir
->return_deref
->type
->vector_elements
,
1570 nir_builder_instr_insert(&b
, &instr
->instr
);
1573 case nir_intrinsic_vote_any
:
1574 case nir_intrinsic_vote_all
:
1575 case nir_intrinsic_vote_ieq
: {
1576 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1577 instr
->num_components
= 1;
1579 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1580 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1582 nir_builder_instr_insert(&b
, &instr
->instr
);
1586 case nir_intrinsic_ballot
: {
1587 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1588 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1589 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
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
);
1597 case nir_intrinsic_read_invocation
: {
1598 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1599 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1600 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1602 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1603 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1605 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1606 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1608 nir_builder_instr_insert(&b
, &instr
->instr
);
1611 case nir_intrinsic_read_first_invocation
: {
1612 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1613 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1614 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1616 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1617 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1619 nir_builder_instr_insert(&b
, &instr
->instr
);
1623 unreachable("not reached");
1626 if (ir
->return_deref
)
1627 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1632 struct hash_entry
*entry
=
1633 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1635 nir_function
*callee
= (nir_function
*) entry
->data
;
1637 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1640 nir_deref_instr
*ret_deref
= NULL
;
1641 if (ir
->return_deref
) {
1642 nir_variable
*ret_tmp
=
1643 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1645 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1646 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1649 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1650 actual_node
, &ir
->actual_parameters
) {
1651 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1652 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1654 if (sig_param
->data
.mode
== ir_var_function_out
) {
1655 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1656 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1657 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1658 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1659 nir_src src
= nir_src_for_ssa(val
);
1661 nir_src_copy(&call
->params
[i
], &src
, call
);
1662 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1663 unreachable("unimplemented: inout parameters");
1669 nir_builder_instr_insert(&b
, &call
->instr
);
1671 if (ir
->return_deref
)
1672 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1676 nir_visitor::visit(ir_assignment
*ir
)
1678 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1680 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1681 ir
->lhs
->variable_referenced()->data
.precise
;
1683 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1684 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1685 nir_deref_instr
*lhs
= evaluate_deref(ir
->lhs
);
1686 nir_deref_instr
*rhs
= evaluate_deref(ir
->rhs
);
1687 enum gl_access_qualifier lhs_qualifiers
= deref_get_qualifier(lhs
);
1688 enum gl_access_qualifier rhs_qualifiers
= deref_get_qualifier(rhs
);
1689 if (ir
->condition
) {
1690 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1691 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1693 nir_pop_if(&b
, NULL
);
1695 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1701 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1703 ir
->lhs
->accept(this);
1704 nir_deref_instr
*lhs_deref
= this->deref
;
1705 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1707 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1708 /* GLSL IR will give us the input to the write-masked assignment in a
1709 * single packed vector. So, for example, if the writemask is xzw, then
1710 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1714 unsigned component
= 0;
1715 for (unsigned i
= 0; i
< 4; i
++) {
1716 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1718 src
= nir_swizzle(&b
, src
, swiz
, num_components
);
1721 enum gl_access_qualifier qualifiers
= deref_get_qualifier(lhs_deref
);
1722 if (ir
->condition
) {
1723 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1724 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1726 nir_pop_if(&b
, NULL
);
1728 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1734 * Given an instruction, returns a pointer to its destination or NULL if there
1735 * is no destination.
1737 * Note that this only handles instructions we generate at this level.
1740 get_instr_dest(nir_instr
*instr
)
1742 nir_alu_instr
*alu_instr
;
1743 nir_intrinsic_instr
*intrinsic_instr
;
1744 nir_tex_instr
*tex_instr
;
1746 switch (instr
->type
) {
1747 case nir_instr_type_alu
:
1748 alu_instr
= nir_instr_as_alu(instr
);
1749 return &alu_instr
->dest
.dest
;
1751 case nir_instr_type_intrinsic
:
1752 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1753 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1754 return &intrinsic_instr
->dest
;
1758 case nir_instr_type_tex
:
1759 tex_instr
= nir_instr_as_tex(instr
);
1760 return &tex_instr
->dest
;
1763 unreachable("not reached");
1770 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1773 nir_dest
*dest
= get_instr_dest(instr
);
1776 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1778 nir_builder_instr_insert(&b
, instr
);
1781 assert(dest
->is_ssa
);
1782 this->result
= &dest
->ssa
;
1787 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1790 if (ir
->as_dereference() || ir
->as_constant()) {
1792 * A dereference is being used on the right hand side, which means we
1793 * must emit a variable load.
1796 enum gl_access_qualifier access
= deref_get_qualifier(this->deref
);
1797 this->result
= nir_load_deref_with_access(&b
, this->deref
, access
);
1800 return this->result
;
1804 type_is_float(glsl_base_type type
)
1806 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1807 type
== GLSL_TYPE_FLOAT16
;
1811 type_is_signed(glsl_base_type type
)
1813 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1814 type
== GLSL_TYPE_INT16
;
1818 nir_visitor::visit(ir_expression
*ir
)
1820 /* Some special cases */
1821 switch (ir
->operation
) {
1822 case ir_binop_ubo_load
: {
1823 nir_intrinsic_instr
*load
=
1824 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1825 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1826 glsl_get_bit_size(ir
->type
);
1827 load
->num_components
= ir
->type
->vector_elements
;
1828 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1829 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1830 intrinsic_set_std430_align(load
, ir
->type
);
1831 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1834 * In UBO's, a true boolean value is any non-zero value, but we consider
1835 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1838 if (ir
->type
->is_boolean())
1839 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1844 case ir_unop_interpolate_at_centroid
:
1845 case ir_binop_interpolate_at_offset
:
1846 case ir_binop_interpolate_at_sample
: {
1847 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1848 ir_swizzle
*swizzle
= NULL
;
1850 /* the api does not allow a swizzle here, but the varying packing code
1851 * may have pushed one into here.
1853 swizzle
= ir
->operands
[0]->as_swizzle();
1855 deref
= swizzle
->val
->as_dereference();
1859 deref
->accept(this);
1861 nir_intrinsic_op op
;
1862 if (this->deref
->mode
== nir_var_shader_in
) {
1863 switch (ir
->operation
) {
1864 case ir_unop_interpolate_at_centroid
:
1865 op
= nir_intrinsic_interp_deref_at_centroid
;
1867 case ir_binop_interpolate_at_offset
:
1868 op
= nir_intrinsic_interp_deref_at_offset
;
1870 case ir_binop_interpolate_at_sample
:
1871 op
= nir_intrinsic_interp_deref_at_sample
;
1874 unreachable("Invalid interpolation intrinsic");
1877 /* This case can happen if the vertex shader does not write the
1878 * given varying. In this case, the linker will lower it to a
1879 * global variable. Since interpolating a variable makes no
1880 * sense, we'll just turn it into a load which will probably
1881 * eventually end up as an SSA definition.
1883 assert(this->deref
->mode
== nir_var_shader_temp
);
1884 op
= nir_intrinsic_load_deref
;
1887 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1888 intrin
->num_components
= deref
->type
->vector_elements
;
1889 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1891 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1892 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1893 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1895 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1896 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1899 unsigned swiz
[4] = {
1900 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1903 result
= nir_swizzle(&b
, result
, swiz
,
1904 swizzle
->type
->vector_elements
);
1910 case ir_unop_ssbo_unsized_array_length
: {
1911 nir_intrinsic_instr
*intrin
=
1912 nir_intrinsic_instr_create(b
.shader
,
1913 nir_intrinsic_deref_buffer_array_length
);
1915 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1916 intrin
->src
[0] = nir_src_for_ssa(&evaluate_deref(deref
)->dest
.ssa
);
1918 add_instr(&intrin
->instr
, 1, 32);
1926 nir_ssa_def
*srcs
[4];
1927 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1928 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1930 glsl_base_type types
[4];
1931 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1932 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1934 glsl_base_type out_type
= ir
->type
->base_type
;
1936 switch (ir
->operation
) {
1937 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1938 case ir_unop_logic_not
:
1939 result
= nir_inot(&b
, srcs
[0]);
1942 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1943 : nir_ineg(&b
, srcs
[0]);
1946 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1947 : nir_iabs(&b
, srcs
[0]);
1949 case ir_unop_saturate
:
1950 assert(type_is_float(types
[0]));
1951 result
= nir_fsat(&b
, srcs
[0]);
1954 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1955 : nir_isign(&b
, srcs
[0]);
1957 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1958 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1959 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1960 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1961 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1962 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1963 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1999 case ir_unop_i642u64
:
2000 case ir_unop_u642i64
: {
2001 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
2002 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
2003 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
2004 nir_rounding_mode_undef
),
2005 srcs
[0], NULL
, NULL
, NULL
);
2006 /* b2i and b2f don't have fixed bit-size versions so the builder will
2007 * just assume 32 and we have to fix it up here.
2009 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
2013 case ir_unop_bitcast_i2f
:
2014 case ir_unop_bitcast_f2i
:
2015 case ir_unop_bitcast_u2f
:
2016 case ir_unop_bitcast_f2u
:
2017 case ir_unop_bitcast_i642d
:
2018 case ir_unop_bitcast_d2i64
:
2019 case ir_unop_bitcast_u642d
:
2020 case ir_unop_bitcast_d2u64
:
2021 case ir_unop_subroutine_to_int
:
2023 result
= nir_mov(&b
, srcs
[0]);
2025 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
2026 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
2027 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
2028 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
2029 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
2030 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
2031 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
2032 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
2033 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
2034 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
2035 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
2036 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
2037 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
2038 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
2039 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
2040 case ir_unop_pack_snorm_2x16
:
2041 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
2043 case ir_unop_pack_snorm_4x8
:
2044 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
2046 case ir_unop_pack_unorm_2x16
:
2047 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
2049 case ir_unop_pack_unorm_4x8
:
2050 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
2052 case ir_unop_pack_half_2x16
:
2053 result
= nir_pack_half_2x16(&b
, srcs
[0]);
2055 case ir_unop_unpack_snorm_2x16
:
2056 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
2058 case ir_unop_unpack_snorm_4x8
:
2059 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
2061 case ir_unop_unpack_unorm_2x16
:
2062 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
2064 case ir_unop_unpack_unorm_4x8
:
2065 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
2067 case ir_unop_unpack_half_2x16
:
2068 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
2070 case ir_unop_pack_sampler_2x32
:
2071 case ir_unop_pack_image_2x32
:
2072 case ir_unop_pack_double_2x32
:
2073 case ir_unop_pack_int_2x32
:
2074 case ir_unop_pack_uint_2x32
:
2075 result
= nir_pack_64_2x32(&b
, srcs
[0]);
2077 case ir_unop_unpack_sampler_2x32
:
2078 case ir_unop_unpack_image_2x32
:
2079 case ir_unop_unpack_double_2x32
:
2080 case ir_unop_unpack_int_2x32
:
2081 case ir_unop_unpack_uint_2x32
:
2082 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
2084 case ir_unop_bitfield_reverse
:
2085 result
= nir_bitfield_reverse(&b
, srcs
[0]);
2087 case ir_unop_bit_count
:
2088 result
= nir_bit_count(&b
, srcs
[0]);
2090 case ir_unop_find_msb
:
2092 case GLSL_TYPE_UINT
:
2093 result
= nir_ufind_msb(&b
, srcs
[0]);
2096 result
= nir_ifind_msb(&b
, srcs
[0]);
2099 unreachable("Invalid type for findMSB()");
2102 case ir_unop_find_lsb
:
2103 result
= nir_find_lsb(&b
, srcs
[0]);
2107 switch (ir
->type
->vector_elements
) {
2109 switch (ir
->operands
[0]->type
->vector_elements
) {
2110 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
2111 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
2112 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
2113 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
2114 default: unreachable("not reached");
2118 switch (ir
->operands
[0]->type
->vector_elements
) {
2119 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
2120 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
2121 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
2122 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
2123 default: unreachable("not reached");
2127 switch (ir
->operands
[0]->type
->vector_elements
) {
2128 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
2129 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
2130 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
2131 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
2132 default: unreachable("not reached");
2136 switch (ir
->operands
[0]->type
->vector_elements
) {
2137 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
2138 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
2139 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
2140 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
2141 default: unreachable("not reached");
2145 unreachable("not reached");
2148 case ir_unop_get_buffer_size
: {
2149 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
2151 nir_intrinsic_get_buffer_size
);
2152 load
->num_components
= ir
->type
->vector_elements
;
2153 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
2154 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2155 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
2160 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
2161 : nir_iadd(&b
, srcs
[0], srcs
[1]);
2164 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
2165 : nir_isub(&b
, srcs
[0], srcs
[1]);
2168 if (type_is_float(out_type
))
2169 result
= nir_fmul(&b
, srcs
[0], srcs
[1]);
2170 else if (out_type
== GLSL_TYPE_INT64
&&
2171 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
||
2172 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
))
2173 result
= nir_imul_2x32_64(&b
, srcs
[0], srcs
[1]);
2174 else if (out_type
== GLSL_TYPE_UINT64
&&
2175 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
||
2176 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_UINT
))
2177 result
= nir_umul_2x32_64(&b
, srcs
[0], srcs
[1]);
2179 result
= nir_imul(&b
, srcs
[0], srcs
[1]);
2182 if (type_is_float(out_type
))
2183 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
2184 else if (type_is_signed(out_type
))
2185 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
2187 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
2190 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
2191 : nir_umod(&b
, srcs
[0], srcs
[1]);
2194 if (type_is_float(out_type
))
2195 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
2196 else if (type_is_signed(out_type
))
2197 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
2199 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
2202 if (type_is_float(out_type
))
2203 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
2204 else if (type_is_signed(out_type
))
2205 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
2207 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
2209 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
2210 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
2211 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
2212 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
2213 case ir_binop_logic_and
:
2214 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
2216 case ir_binop_logic_or
:
2217 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
2219 case ir_binop_logic_xor
:
2220 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
2222 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
2223 case ir_binop_rshift
:
2224 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
2225 : nir_ushr(&b
, srcs
[0], srcs
[1]);
2227 case ir_binop_imul_high
:
2228 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
2229 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
2231 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
2232 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
2234 if (type_is_float(types
[0]))
2235 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
2236 else if (type_is_signed(types
[0]))
2237 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
2239 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
2241 case ir_binop_gequal
:
2242 if (type_is_float(types
[0]))
2243 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
2244 else if (type_is_signed(types
[0]))
2245 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
2247 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
2249 case ir_binop_equal
:
2250 if (type_is_float(types
[0]))
2251 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
2253 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
2255 case ir_binop_nequal
:
2256 if (type_is_float(types
[0]))
2257 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
2259 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
2261 case ir_binop_all_equal
:
2262 if (type_is_float(types
[0])) {
2263 switch (ir
->operands
[0]->type
->vector_elements
) {
2264 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
2265 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
2266 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
2267 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
2269 unreachable("not reached");
2272 switch (ir
->operands
[0]->type
->vector_elements
) {
2273 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
2274 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
2275 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
2276 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
2278 unreachable("not reached");
2282 case ir_binop_any_nequal
:
2283 if (type_is_float(types
[0])) {
2284 switch (ir
->operands
[0]->type
->vector_elements
) {
2285 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
2286 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
2287 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
2288 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
2290 unreachable("not reached");
2293 switch (ir
->operands
[0]->type
->vector_elements
) {
2294 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
2295 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
2296 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
2297 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
2299 unreachable("not reached");
2304 switch (ir
->operands
[0]->type
->vector_elements
) {
2305 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2306 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2307 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2309 unreachable("not reached");
2312 case ir_binop_vector_extract
: {
2313 result
= nir_channel(&b
, srcs
[0], 0);
2314 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2315 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2316 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2322 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2324 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2327 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2330 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2332 case ir_triop_bitfield_extract
:
2333 result
= (out_type
== GLSL_TYPE_INT
) ?
2334 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2335 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2337 case ir_quadop_bitfield_insert
:
2338 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2340 case ir_quadop_vector
:
2341 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2345 unreachable("not reached");
2350 nir_visitor::visit(ir_swizzle
*ir
)
2352 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2353 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2354 ir
->type
->vector_elements
);
2358 nir_visitor::visit(ir_texture
*ir
)
2365 num_srcs
= 1; /* coordinate */
2370 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2371 num_srcs
= 2; /* coordinate, bias/lod */
2375 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2381 if (ir
->lod_info
.lod
!= NULL
)
2382 num_srcs
= 2; /* coordinate, lod */
2384 num_srcs
= 1; /* coordinate */
2388 op
= nir_texop_txf_ms
;
2389 num_srcs
= 2; /* coordinate, sample_index */
2394 if (ir
->lod_info
.lod
!= NULL
)
2395 num_srcs
= 1; /* lod */
2402 num_srcs
= 1; /* coordinate */
2407 num_srcs
= 1; /* coordinate */
2410 case ir_query_levels
:
2411 op
= nir_texop_query_levels
;
2415 case ir_texture_samples
:
2416 op
= nir_texop_texture_samples
;
2420 case ir_samples_identical
:
2421 op
= nir_texop_samples_identical
;
2422 num_srcs
= 1; /* coordinate */
2426 unreachable("not reached");
2429 if (ir
->projector
!= NULL
)
2431 if (ir
->shadow_comparator
!= NULL
)
2433 /* offsets are constants we store inside nir_tex_intrs.offsets */
2434 if (ir
->offset
!= NULL
&& !ir
->offset
->type
->is_array())
2437 /* Add one for the texture deref */
2440 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2443 instr
->sampler_dim
=
2444 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2445 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2446 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2447 if (instr
->is_shadow
)
2448 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2449 switch (ir
->type
->base_type
) {
2450 case GLSL_TYPE_FLOAT
:
2451 instr
->dest_type
= nir_type_float
;
2454 instr
->dest_type
= nir_type_int
;
2456 case GLSL_TYPE_BOOL
:
2457 case GLSL_TYPE_UINT
:
2458 instr
->dest_type
= nir_type_uint
;
2461 unreachable("not reached");
2464 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2466 /* check for bindless handles */
2467 if (sampler_deref
->mode
!= nir_var_uniform
||
2468 nir_deref_instr_get_variable(sampler_deref
)->data
.bindless
) {
2469 nir_ssa_def
*load
= nir_load_deref(&b
, sampler_deref
);
2470 instr
->src
[0].src
= nir_src_for_ssa(load
);
2471 instr
->src
[0].src_type
= nir_tex_src_texture_handle
;
2472 instr
->src
[1].src
= nir_src_for_ssa(load
);
2473 instr
->src
[1].src_type
= nir_tex_src_sampler_handle
;
2475 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2476 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2477 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2478 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2481 unsigned src_number
= 2;
2483 if (ir
->coordinate
!= NULL
) {
2484 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2485 instr
->src
[src_number
].src
=
2486 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2487 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2491 if (ir
->projector
!= NULL
) {
2492 instr
->src
[src_number
].src
=
2493 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2494 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2498 if (ir
->shadow_comparator
!= NULL
) {
2499 instr
->src
[src_number
].src
=
2500 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2501 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2505 if (ir
->offset
!= NULL
) {
2506 if (ir
->offset
->type
->is_array()) {
2507 for (int i
= 0; i
< ir
->offset
->type
->array_size(); i
++) {
2508 const ir_constant
*c
=
2509 ir
->offset
->as_constant()->get_array_element(i
);
2511 for (unsigned j
= 0; j
< 2; ++j
) {
2512 int val
= c
->get_int_component(j
);
2513 assert(val
<= 31 && val
>= -32);
2514 instr
->tg4_offsets
[i
][j
] = val
;
2518 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2520 instr
->src
[src_number
].src
=
2521 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2522 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2529 instr
->src
[src_number
].src
=
2530 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2531 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2538 if (ir
->lod_info
.lod
!= NULL
) {
2539 instr
->src
[src_number
].src
=
2540 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2541 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2547 instr
->src
[src_number
].src
=
2548 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2549 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2551 instr
->src
[src_number
].src
=
2552 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2553 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2558 instr
->src
[src_number
].src
=
2559 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2560 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2565 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2572 assert(src_number
== num_srcs
);
2574 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2575 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2579 nir_visitor::visit(ir_constant
*ir
)
2582 * We don't know if this variable is an array or struct that gets
2583 * dereferenced, so do the safe thing an make it a variable with a
2584 * constant initializer and return a dereference.
2588 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2589 var
->data
.read_only
= true;
2590 var
->constant_initializer
= constant_copy(ir
, var
);
2592 this->deref
= nir_build_deref_var(&b
, var
);
2596 nir_visitor::visit(ir_dereference_variable
*ir
)
2598 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2599 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2601 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2602 if (param
== ir
->variable_referenced()) {
2608 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2609 nir_var_function_temp
, ir
->type
, 0);
2613 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2615 struct hash_entry
*entry
=
2616 _mesa_hash_table_search(this->var_table
, ir
->var
);
2618 nir_variable
*var
= (nir_variable
*) entry
->data
;
2620 this->deref
= nir_build_deref_var(&b
, var
);
2624 nir_visitor::visit(ir_dereference_record
*ir
)
2626 ir
->record
->accept(this);
2628 int field_index
= ir
->field_idx
;
2629 assert(field_index
>= 0);
2631 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2635 nir_visitor::visit(ir_dereference_array
*ir
)
2637 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2639 ir
->array
->accept(this);
2641 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2645 nir_visitor::visit(ir_barrier
*)
2647 nir_intrinsic_instr
*instr
=
2648 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2649 nir_builder_instr_insert(&b
, &instr
->instr
);
2653 glsl_float64_funcs_to_nir(struct gl_context
*ctx
,
2654 const nir_shader_compiler_options
*options
)
2656 /* We pretend it's a vertex shader. Ultimately, the stage shouldn't
2657 * matter because we're not optimizing anything here.
2659 struct gl_shader
*sh
= _mesa_new_shader(-1, MESA_SHADER_VERTEX
);
2660 sh
->Source
= float64_source
;
2661 sh
->CompileStatus
= COMPILE_FAILURE
;
2662 _mesa_glsl_compile_shader(ctx
, sh
, false, false, true);
2664 if (!sh
->CompileStatus
) {
2667 "fp64 software impl compile failed:\n%s\nsource:\n%s\n",
2668 sh
->InfoLog
, float64_source
);
2673 nir_shader
*nir
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, options
, NULL
);
2675 nir_visitor
v1(ctx
, nir
);
2676 nir_function_visitor
v2(&v1
);
2678 visit_exec_list(sh
->ir
, &v1
);
2680 /* _mesa_delete_shader will try to free sh->Source but it's static const */
2682 _mesa_delete_shader(ctx
, sh
);
2684 nir_validate_shader(nir
, "float64_funcs_to_nir");
2686 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
2687 NIR_PASS_V(nir
, nir_lower_returns
);
2688 NIR_PASS_V(nir
, nir_inline_functions
);
2689 NIR_PASS_V(nir
, nir_opt_deref
);
2691 /* Do some optimizations to clean up the shader now. By optimizing the
2692 * functions in the library, we avoid having to re-do that work every
2693 * time we inline a copy of a function. Reducing basic blocks also helps
2694 * with compile times.
2696 NIR_PASS_V(nir
, nir_lower_vars_to_ssa
);
2697 NIR_PASS_V(nir
, nir_copy_prop
);
2698 NIR_PASS_V(nir
, nir_opt_dce
);
2699 NIR_PASS_V(nir
, nir_opt_cse
);
2700 NIR_PASS_V(nir
, nir_opt_gcm
, true);
2701 NIR_PASS_V(nir
, nir_opt_peephole_select
, 1, false, false);
2702 NIR_PASS_V(nir
, nir_opt_dce
);