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_FRAGMENT
&&
464 ir
->data
.location
== VARYING_SLOT_FACE
) {
465 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
466 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
467 var
->data
.mode
= nir_var_system_value
;
468 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
469 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
470 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
471 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
472 var
->data
.mode
= nir_var_system_value
;
474 var
->data
.mode
= nir_var_shader_in
;
476 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
477 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
478 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
479 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
482 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
483 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
484 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
485 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
490 case ir_var_shader_out
:
491 var
->data
.mode
= nir_var_shader_out
;
492 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
493 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
494 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
495 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
498 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
499 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
500 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
501 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
506 if (ir
->get_interface_type())
507 var
->data
.mode
= nir_var_mem_ubo
;
509 var
->data
.mode
= nir_var_uniform
;
512 case ir_var_shader_storage
:
513 var
->data
.mode
= nir_var_mem_ssbo
;
516 case ir_var_system_value
:
517 var
->data
.mode
= nir_var_system_value
;
521 unreachable("not reached");
524 unsigned image_access
= 0;
525 if (ir
->data
.memory_read_only
)
526 image_access
|= ACCESS_NON_WRITEABLE
;
527 if (ir
->data
.memory_write_only
)
528 image_access
|= ACCESS_NON_READABLE
;
529 if (ir
->data
.memory_coherent
)
530 image_access
|= ACCESS_COHERENT
;
531 if (ir
->data
.memory_volatile
)
532 image_access
|= ACCESS_VOLATILE
;
533 if (ir
->data
.memory_restrict
)
534 image_access
|= ACCESS_RESTRICT
;
536 /* For UBO and SSBO variables, we need explicit types */
537 if (var
->data
.mode
& (nir_var_mem_ubo
| nir_var_mem_ssbo
)) {
538 const glsl_type
*explicit_ifc_type
=
539 ir
->get_interface_type()->get_explicit_interface_type(supports_std430
);
541 if (ir
->type
->without_array()->is_interface()) {
542 /* If the type contains the interface, wrap the explicit type in the
543 * right number of arrays.
545 var
->type
= wrap_type_in_array(explicit_ifc_type
, ir
->type
);
547 /* Otherwise, this variable is one entry in the interface */
548 UNUSED
bool found
= false;
549 for (unsigned i
= 0; i
< explicit_ifc_type
->length
; i
++) {
550 const glsl_struct_field
*field
=
551 &explicit_ifc_type
->fields
.structure
[i
];
552 if (strcmp(ir
->name
, field
->name
) != 0)
555 var
->type
= field
->type
;
556 if (field
->memory_read_only
)
557 image_access
|= ACCESS_NON_WRITEABLE
;
558 if (field
->memory_write_only
)
559 image_access
|= ACCESS_NON_READABLE
;
560 if (field
->memory_coherent
)
561 image_access
|= ACCESS_COHERENT
;
562 if (field
->memory_volatile
)
563 image_access
|= ACCESS_VOLATILE
;
564 if (field
->memory_restrict
)
565 image_access
|= ACCESS_RESTRICT
;
574 var
->data
.interpolation
= ir
->data
.interpolation
;
575 var
->data
.location_frac
= ir
->data
.location_frac
;
577 switch (ir
->data
.depth_layout
) {
578 case ir_depth_layout_none
:
579 var
->data
.depth_layout
= nir_depth_layout_none
;
581 case ir_depth_layout_any
:
582 var
->data
.depth_layout
= nir_depth_layout_any
;
584 case ir_depth_layout_greater
:
585 var
->data
.depth_layout
= nir_depth_layout_greater
;
587 case ir_depth_layout_less
:
588 var
->data
.depth_layout
= nir_depth_layout_less
;
590 case ir_depth_layout_unchanged
:
591 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
594 unreachable("not reached");
597 var
->data
.index
= ir
->data
.index
;
598 var
->data
.descriptor_set
= 0;
599 var
->data
.binding
= ir
->data
.binding
;
600 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
601 var
->data
.bindless
= ir
->data
.bindless
;
602 var
->data
.offset
= ir
->data
.offset
;
604 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
605 var
->data
.image
.format
= ir
->data
.image_format
;
607 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
608 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
609 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
610 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
611 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
613 var
->num_state_slots
= ir
->get_num_state_slots();
614 if (var
->num_state_slots
> 0) {
615 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
616 var
->num_state_slots
);
618 ir_state_slot
*state_slots
= ir
->get_state_slots();
619 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
620 for (unsigned j
= 0; j
< 5; j
++)
621 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
622 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
625 var
->state_slots
= NULL
;
628 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
630 var
->interface_type
= ir
->get_interface_type();
632 if (var
->data
.mode
== nir_var_function_temp
)
633 nir_function_impl_add_variable(impl
, var
);
635 nir_shader_add_variable(shader
, var
);
637 _mesa_hash_table_insert(var_table
, ir
, var
);
641 nir_function_visitor::visit_enter(ir_function
*ir
)
643 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
644 visitor
->create_function(sig
);
646 return visit_continue_with_parent
;
650 nir_visitor::create_function(ir_function_signature
*ir
)
652 if (ir
->is_intrinsic())
655 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
656 if (strcmp(ir
->function_name(), "main") == 0)
657 func
->is_entrypoint
= true;
659 func
->num_params
= ir
->parameters
.length() +
660 (ir
->return_type
!= glsl_type::void_type
);
661 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
665 if (ir
->return_type
!= glsl_type::void_type
) {
666 /* The return value is a variable deref (basically an out parameter) */
667 func
->params
[np
].num_components
= 1;
668 func
->params
[np
].bit_size
= 32;
672 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
673 /* FINISHME: pass arrays, structs, etc by reference? */
674 assert(param
->type
->is_vector() || param
->type
->is_scalar());
676 if (param
->data
.mode
== ir_var_function_in
) {
677 func
->params
[np
].num_components
= param
->type
->vector_elements
;
678 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
680 func
->params
[np
].num_components
= 1;
681 func
->params
[np
].bit_size
= 32;
685 assert(np
== func
->num_params
);
687 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
691 nir_visitor::visit(ir_function
*ir
)
693 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
698 nir_visitor::visit(ir_function_signature
*ir
)
700 if (ir
->is_intrinsic())
705 struct hash_entry
*entry
=
706 _mesa_hash_table_search(this->overload_table
, ir
);
709 nir_function
*func
= (nir_function
*) entry
->data
;
711 if (ir
->is_defined
) {
712 nir_function_impl
*impl
= nir_function_impl_create(func
);
715 this->is_global
= false;
717 nir_builder_init(&b
, impl
);
718 b
.cursor
= nir_after_cf_list(&impl
->body
);
720 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
722 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
724 nir_local_variable_create(impl
, param
->type
, param
->name
);
726 if (param
->data
.mode
== ir_var_function_in
) {
727 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
730 _mesa_hash_table_insert(var_table
, param
, var
);
734 visit_exec_list(&ir
->body
, this);
736 this->is_global
= true;
743 nir_visitor::visit(ir_loop
*ir
)
746 visit_exec_list(&ir
->body_instructions
, this);
747 nir_pop_loop(&b
, NULL
);
751 nir_visitor::visit(ir_if
*ir
)
753 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
754 visit_exec_list(&ir
->then_instructions
, this);
755 nir_push_else(&b
, NULL
);
756 visit_exec_list(&ir
->else_instructions
, this);
757 nir_pop_if(&b
, NULL
);
761 nir_visitor::visit(ir_discard
*ir
)
764 * discards aren't treated as control flow, because before we lower them
765 * they can appear anywhere in the shader and the stuff after them may still
766 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
767 * discards will be immediately followed by a return.
770 nir_intrinsic_instr
*discard
;
772 discard
= nir_intrinsic_instr_create(this->shader
,
773 nir_intrinsic_discard_if
);
775 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
777 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
780 nir_builder_instr_insert(&b
, &discard
->instr
);
784 nir_visitor::visit(ir_emit_vertex
*ir
)
786 nir_intrinsic_instr
*instr
=
787 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
788 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
789 nir_builder_instr_insert(&b
, &instr
->instr
);
793 nir_visitor::visit(ir_end_primitive
*ir
)
795 nir_intrinsic_instr
*instr
=
796 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
797 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
798 nir_builder_instr_insert(&b
, &instr
->instr
);
802 nir_visitor::visit(ir_loop_jump
*ir
)
806 case ir_loop_jump::jump_break
:
807 type
= nir_jump_break
;
809 case ir_loop_jump::jump_continue
:
810 type
= nir_jump_continue
;
813 unreachable("not reached");
816 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
817 nir_builder_instr_insert(&b
, &instr
->instr
);
821 nir_visitor::visit(ir_return
*ir
)
823 if (ir
->value
!= NULL
) {
824 nir_deref_instr
*ret_deref
=
825 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
826 nir_var_function_temp
, ir
->value
->type
, 0);
828 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
829 nir_store_deref(&b
, ret_deref
, val
, ~0);
832 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
833 nir_builder_instr_insert(&b
, &instr
->instr
);
837 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
839 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
840 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
841 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
844 /* Accumulate any qualifiers along the deref chain to get the actual
845 * load/store qualifier.
848 static enum gl_access_qualifier
849 deref_get_qualifier(nir_deref_instr
*deref
)
852 nir_deref_path_init(&path
, deref
, NULL
);
854 unsigned qualifiers
= path
.path
[0]->var
->data
.image
.access
;
856 const glsl_type
*parent_type
= path
.path
[0]->type
;
857 for (nir_deref_instr
**cur_ptr
= &path
.path
[1]; *cur_ptr
; cur_ptr
++) {
858 nir_deref_instr
*cur
= *cur_ptr
;
860 if (parent_type
->is_interface()) {
861 const struct glsl_struct_field
*field
=
862 &parent_type
->fields
.structure
[cur
->strct
.index
];
863 if (field
->memory_read_only
)
864 qualifiers
|= ACCESS_NON_WRITEABLE
;
865 if (field
->memory_write_only
)
866 qualifiers
|= ACCESS_NON_READABLE
;
867 if (field
->memory_coherent
)
868 qualifiers
|= ACCESS_COHERENT
;
869 if (field
->memory_volatile
)
870 qualifiers
|= ACCESS_VOLATILE
;
871 if (field
->memory_restrict
)
872 qualifiers
|= ACCESS_RESTRICT
;
875 parent_type
= cur
->type
;
878 nir_deref_path_finish(&path
);
880 return (gl_access_qualifier
) qualifiers
;
884 nir_visitor::visit(ir_call
*ir
)
886 if (ir
->callee
->is_intrinsic()) {
889 switch (ir
->callee
->intrinsic_id
) {
890 case ir_intrinsic_generic_atomic_add
:
891 op
= ir
->return_deref
->type
->is_integer_32_64()
892 ? nir_intrinsic_deref_atomic_add
: nir_intrinsic_deref_atomic_fadd
;
894 case ir_intrinsic_generic_atomic_and
:
895 op
= nir_intrinsic_deref_atomic_and
;
897 case ir_intrinsic_generic_atomic_or
:
898 op
= nir_intrinsic_deref_atomic_or
;
900 case ir_intrinsic_generic_atomic_xor
:
901 op
= nir_intrinsic_deref_atomic_xor
;
903 case ir_intrinsic_generic_atomic_min
:
904 assert(ir
->return_deref
);
905 if (ir
->return_deref
->type
== glsl_type::int_type
)
906 op
= nir_intrinsic_deref_atomic_imin
;
907 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
908 op
= nir_intrinsic_deref_atomic_umin
;
909 else if (ir
->return_deref
->type
== glsl_type::float_type
)
910 op
= nir_intrinsic_deref_atomic_fmin
;
912 unreachable("Invalid type");
914 case ir_intrinsic_generic_atomic_max
:
915 assert(ir
->return_deref
);
916 if (ir
->return_deref
->type
== glsl_type::int_type
)
917 op
= nir_intrinsic_deref_atomic_imax
;
918 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
919 op
= nir_intrinsic_deref_atomic_umax
;
920 else if (ir
->return_deref
->type
== glsl_type::float_type
)
921 op
= nir_intrinsic_deref_atomic_fmax
;
923 unreachable("Invalid type");
925 case ir_intrinsic_generic_atomic_exchange
:
926 op
= nir_intrinsic_deref_atomic_exchange
;
928 case ir_intrinsic_generic_atomic_comp_swap
:
929 op
= ir
->return_deref
->type
->is_integer_32_64()
930 ? nir_intrinsic_deref_atomic_comp_swap
931 : nir_intrinsic_deref_atomic_fcomp_swap
;
933 case ir_intrinsic_atomic_counter_read
:
934 op
= nir_intrinsic_atomic_counter_read_deref
;
936 case ir_intrinsic_atomic_counter_increment
:
937 op
= nir_intrinsic_atomic_counter_inc_deref
;
939 case ir_intrinsic_atomic_counter_predecrement
:
940 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
942 case ir_intrinsic_atomic_counter_add
:
943 op
= nir_intrinsic_atomic_counter_add_deref
;
945 case ir_intrinsic_atomic_counter_and
:
946 op
= nir_intrinsic_atomic_counter_and_deref
;
948 case ir_intrinsic_atomic_counter_or
:
949 op
= nir_intrinsic_atomic_counter_or_deref
;
951 case ir_intrinsic_atomic_counter_xor
:
952 op
= nir_intrinsic_atomic_counter_xor_deref
;
954 case ir_intrinsic_atomic_counter_min
:
955 op
= nir_intrinsic_atomic_counter_min_deref
;
957 case ir_intrinsic_atomic_counter_max
:
958 op
= nir_intrinsic_atomic_counter_max_deref
;
960 case ir_intrinsic_atomic_counter_exchange
:
961 op
= nir_intrinsic_atomic_counter_exchange_deref
;
963 case ir_intrinsic_atomic_counter_comp_swap
:
964 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
966 case ir_intrinsic_image_load
:
967 op
= nir_intrinsic_image_deref_load
;
969 case ir_intrinsic_image_store
:
970 op
= nir_intrinsic_image_deref_store
;
972 case ir_intrinsic_image_atomic_add
:
973 op
= ir
->return_deref
->type
->is_integer_32_64()
974 ? nir_intrinsic_image_deref_atomic_add
975 : nir_intrinsic_image_deref_atomic_fadd
;
977 case ir_intrinsic_image_atomic_min
:
978 op
= nir_intrinsic_image_deref_atomic_min
;
980 case ir_intrinsic_image_atomic_max
:
981 op
= nir_intrinsic_image_deref_atomic_max
;
983 case ir_intrinsic_image_atomic_and
:
984 op
= nir_intrinsic_image_deref_atomic_and
;
986 case ir_intrinsic_image_atomic_or
:
987 op
= nir_intrinsic_image_deref_atomic_or
;
989 case ir_intrinsic_image_atomic_xor
:
990 op
= nir_intrinsic_image_deref_atomic_xor
;
992 case ir_intrinsic_image_atomic_exchange
:
993 op
= nir_intrinsic_image_deref_atomic_exchange
;
995 case ir_intrinsic_image_atomic_comp_swap
:
996 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
998 case ir_intrinsic_memory_barrier
:
999 op
= nir_intrinsic_memory_barrier
;
1001 case ir_intrinsic_image_size
:
1002 op
= nir_intrinsic_image_deref_size
;
1004 case ir_intrinsic_image_samples
:
1005 op
= nir_intrinsic_image_deref_samples
;
1007 case ir_intrinsic_ssbo_store
:
1008 op
= nir_intrinsic_store_ssbo
;
1010 case ir_intrinsic_ssbo_load
:
1011 op
= nir_intrinsic_load_ssbo
;
1013 case ir_intrinsic_ssbo_atomic_add
:
1014 op
= ir
->return_deref
->type
->is_integer_32_64()
1015 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
1017 case ir_intrinsic_ssbo_atomic_and
:
1018 op
= nir_intrinsic_ssbo_atomic_and
;
1020 case ir_intrinsic_ssbo_atomic_or
:
1021 op
= nir_intrinsic_ssbo_atomic_or
;
1023 case ir_intrinsic_ssbo_atomic_xor
:
1024 op
= nir_intrinsic_ssbo_atomic_xor
;
1026 case ir_intrinsic_ssbo_atomic_min
:
1027 assert(ir
->return_deref
);
1028 if (ir
->return_deref
->type
== glsl_type::int_type
)
1029 op
= nir_intrinsic_ssbo_atomic_imin
;
1030 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1031 op
= nir_intrinsic_ssbo_atomic_umin
;
1032 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1033 op
= nir_intrinsic_ssbo_atomic_fmin
;
1035 unreachable("Invalid type");
1037 case ir_intrinsic_ssbo_atomic_max
:
1038 assert(ir
->return_deref
);
1039 if (ir
->return_deref
->type
== glsl_type::int_type
)
1040 op
= nir_intrinsic_ssbo_atomic_imax
;
1041 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1042 op
= nir_intrinsic_ssbo_atomic_umax
;
1043 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1044 op
= nir_intrinsic_ssbo_atomic_fmax
;
1046 unreachable("Invalid type");
1048 case ir_intrinsic_ssbo_atomic_exchange
:
1049 op
= nir_intrinsic_ssbo_atomic_exchange
;
1051 case ir_intrinsic_ssbo_atomic_comp_swap
:
1052 op
= ir
->return_deref
->type
->is_integer_32_64()
1053 ? nir_intrinsic_ssbo_atomic_comp_swap
1054 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
1056 case ir_intrinsic_shader_clock
:
1057 op
= nir_intrinsic_shader_clock
;
1059 case ir_intrinsic_begin_invocation_interlock
:
1060 op
= nir_intrinsic_begin_invocation_interlock
;
1062 case ir_intrinsic_end_invocation_interlock
:
1063 op
= nir_intrinsic_end_invocation_interlock
;
1065 case ir_intrinsic_group_memory_barrier
:
1066 op
= nir_intrinsic_group_memory_barrier
;
1068 case ir_intrinsic_memory_barrier_atomic_counter
:
1069 op
= nir_intrinsic_memory_barrier_atomic_counter
;
1071 case ir_intrinsic_memory_barrier_buffer
:
1072 op
= nir_intrinsic_memory_barrier_buffer
;
1074 case ir_intrinsic_memory_barrier_image
:
1075 op
= nir_intrinsic_memory_barrier_image
;
1077 case ir_intrinsic_memory_barrier_shared
:
1078 op
= nir_intrinsic_memory_barrier_shared
;
1080 case ir_intrinsic_shared_load
:
1081 op
= nir_intrinsic_load_shared
;
1083 case ir_intrinsic_shared_store
:
1084 op
= nir_intrinsic_store_shared
;
1086 case ir_intrinsic_shared_atomic_add
:
1087 op
= ir
->return_deref
->type
->is_integer_32_64()
1088 ? nir_intrinsic_shared_atomic_add
1089 : nir_intrinsic_shared_atomic_fadd
;
1091 case ir_intrinsic_shared_atomic_and
:
1092 op
= nir_intrinsic_shared_atomic_and
;
1094 case ir_intrinsic_shared_atomic_or
:
1095 op
= nir_intrinsic_shared_atomic_or
;
1097 case ir_intrinsic_shared_atomic_xor
:
1098 op
= nir_intrinsic_shared_atomic_xor
;
1100 case ir_intrinsic_shared_atomic_min
:
1101 assert(ir
->return_deref
);
1102 if (ir
->return_deref
->type
== glsl_type::int_type
)
1103 op
= nir_intrinsic_shared_atomic_imin
;
1104 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1105 op
= nir_intrinsic_shared_atomic_umin
;
1106 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1107 op
= nir_intrinsic_shared_atomic_fmin
;
1109 unreachable("Invalid type");
1111 case ir_intrinsic_shared_atomic_max
:
1112 assert(ir
->return_deref
);
1113 if (ir
->return_deref
->type
== glsl_type::int_type
)
1114 op
= nir_intrinsic_shared_atomic_imax
;
1115 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1116 op
= nir_intrinsic_shared_atomic_umax
;
1117 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1118 op
= nir_intrinsic_shared_atomic_fmax
;
1120 unreachable("Invalid type");
1122 case ir_intrinsic_shared_atomic_exchange
:
1123 op
= nir_intrinsic_shared_atomic_exchange
;
1125 case ir_intrinsic_shared_atomic_comp_swap
:
1126 op
= ir
->return_deref
->type
->is_integer_32_64()
1127 ? nir_intrinsic_shared_atomic_comp_swap
1128 : nir_intrinsic_shared_atomic_fcomp_swap
;
1130 case ir_intrinsic_vote_any
:
1131 op
= nir_intrinsic_vote_any
;
1133 case ir_intrinsic_vote_all
:
1134 op
= nir_intrinsic_vote_all
;
1136 case ir_intrinsic_vote_eq
:
1137 op
= nir_intrinsic_vote_ieq
;
1139 case ir_intrinsic_ballot
:
1140 op
= nir_intrinsic_ballot
;
1142 case ir_intrinsic_read_invocation
:
1143 op
= nir_intrinsic_read_invocation
;
1145 case ir_intrinsic_read_first_invocation
:
1146 op
= nir_intrinsic_read_first_invocation
;
1149 unreachable("not reached");
1152 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
1153 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
1156 case nir_intrinsic_deref_atomic_add
:
1157 case nir_intrinsic_deref_atomic_imin
:
1158 case nir_intrinsic_deref_atomic_umin
:
1159 case nir_intrinsic_deref_atomic_imax
:
1160 case nir_intrinsic_deref_atomic_umax
:
1161 case nir_intrinsic_deref_atomic_and
:
1162 case nir_intrinsic_deref_atomic_or
:
1163 case nir_intrinsic_deref_atomic_xor
:
1164 case nir_intrinsic_deref_atomic_exchange
:
1165 case nir_intrinsic_deref_atomic_comp_swap
:
1166 case nir_intrinsic_deref_atomic_fadd
:
1167 case nir_intrinsic_deref_atomic_fmin
:
1168 case nir_intrinsic_deref_atomic_fmax
:
1169 case nir_intrinsic_deref_atomic_fcomp_swap
: {
1170 int param_count
= ir
->actual_parameters
.length();
1171 assert(param_count
== 2 || param_count
== 3);
1174 exec_node
*param
= ir
->actual_parameters
.get_head();
1175 ir_rvalue
*rvalue
= (ir_rvalue
*) param
;
1176 ir_dereference
*deref
= rvalue
->as_dereference();
1177 ir_swizzle
*swizzle
= NULL
;
1179 /* We may have a swizzle to pick off a single vec4 component */
1180 swizzle
= rvalue
->as_swizzle();
1181 assert(swizzle
&& swizzle
->type
->vector_elements
== 1);
1182 deref
= swizzle
->val
->as_dereference();
1185 nir_deref_instr
*nir_deref
= evaluate_deref(deref
);
1187 nir_deref
= nir_build_deref_array_imm(&b
, nir_deref
,
1190 instr
->src
[0] = nir_src_for_ssa(&nir_deref
->dest
.ssa
);
1192 nir_intrinsic_set_access(instr
, deref_get_qualifier(nir_deref
));
1194 /* data1 parameter (this is always present) */
1195 param
= param
->get_next();
1196 ir_instruction
*inst
= (ir_instruction
*) param
;
1197 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1199 /* data2 parameter (only with atomic_comp_swap) */
1200 if (param_count
== 3) {
1201 assert(op
== nir_intrinsic_deref_atomic_comp_swap
||
1202 op
== nir_intrinsic_deref_atomic_fcomp_swap
);
1203 param
= param
->get_next();
1204 inst
= (ir_instruction
*) param
;
1205 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1209 assert(ir
->return_deref
);
1210 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1211 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1212 nir_builder_instr_insert(&b
, &instr
->instr
);
1215 case nir_intrinsic_atomic_counter_read_deref
:
1216 case nir_intrinsic_atomic_counter_inc_deref
:
1217 case nir_intrinsic_atomic_counter_pre_dec_deref
:
1218 case nir_intrinsic_atomic_counter_add_deref
:
1219 case nir_intrinsic_atomic_counter_min_deref
:
1220 case nir_intrinsic_atomic_counter_max_deref
:
1221 case nir_intrinsic_atomic_counter_and_deref
:
1222 case nir_intrinsic_atomic_counter_or_deref
:
1223 case nir_intrinsic_atomic_counter_xor_deref
:
1224 case nir_intrinsic_atomic_counter_exchange_deref
:
1225 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
1226 /* Set the counter variable dereference. */
1227 exec_node
*param
= ir
->actual_parameters
.get_head();
1228 ir_dereference
*counter
= (ir_dereference
*)param
;
1230 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
1231 param
= param
->get_next();
1233 /* Set the intrinsic destination. */
1234 if (ir
->return_deref
) {
1235 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1238 /* Set the intrinsic parameters. */
1239 if (!param
->is_tail_sentinel()) {
1241 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1242 param
= param
->get_next();
1245 if (!param
->is_tail_sentinel()) {
1247 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1248 param
= param
->get_next();
1251 nir_builder_instr_insert(&b
, &instr
->instr
);
1254 case nir_intrinsic_image_deref_load
:
1255 case nir_intrinsic_image_deref_store
:
1256 case nir_intrinsic_image_deref_atomic_add
:
1257 case nir_intrinsic_image_deref_atomic_min
:
1258 case nir_intrinsic_image_deref_atomic_max
:
1259 case nir_intrinsic_image_deref_atomic_and
:
1260 case nir_intrinsic_image_deref_atomic_or
:
1261 case nir_intrinsic_image_deref_atomic_xor
:
1262 case nir_intrinsic_image_deref_atomic_exchange
:
1263 case nir_intrinsic_image_deref_atomic_comp_swap
:
1264 case nir_intrinsic_image_deref_atomic_fadd
:
1265 case nir_intrinsic_image_deref_samples
:
1266 case nir_intrinsic_image_deref_size
: {
1267 nir_ssa_undef_instr
*instr_undef
=
1268 nir_ssa_undef_instr_create(shader
, 1, 32);
1269 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
1271 /* Set the image variable dereference. */
1272 exec_node
*param
= ir
->actual_parameters
.get_head();
1273 ir_dereference
*image
= (ir_dereference
*)param
;
1274 nir_deref_instr
*deref
= evaluate_deref(image
);
1275 const glsl_type
*type
= deref
->type
;
1277 nir_intrinsic_set_access(instr
, deref_get_qualifier(deref
));
1279 instr
->src
[0] = nir_src_for_ssa(&deref
->dest
.ssa
);
1280 param
= param
->get_next();
1282 /* Set the intrinsic destination. */
1283 if (ir
->return_deref
) {
1284 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
1285 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1286 num_components
, 32, NULL
);
1289 if (op
== nir_intrinsic_image_deref_size
) {
1290 instr
->num_components
= instr
->dest
.ssa
.num_components
;
1291 } else if (op
== nir_intrinsic_image_deref_load
||
1292 op
== nir_intrinsic_image_deref_store
) {
1293 instr
->num_components
= 4;
1296 if (op
== nir_intrinsic_image_deref_size
||
1297 op
== nir_intrinsic_image_deref_samples
) {
1298 nir_builder_instr_insert(&b
, &instr
->instr
);
1302 /* Set the address argument, extending the coordinate vector to four
1305 nir_ssa_def
*src_addr
=
1306 evaluate_rvalue((ir_dereference
*)param
);
1307 nir_ssa_def
*srcs
[4];
1309 for (int i
= 0; i
< 4; i
++) {
1310 if (i
< type
->coordinate_components())
1311 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1313 srcs
[i
] = &instr_undef
->def
;
1316 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1317 param
= param
->get_next();
1319 /* Set the sample argument, which is undefined for single-sample
1322 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1324 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1325 param
= param
->get_next();
1327 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1330 /* Set the intrinsic parameters. */
1331 if (!param
->is_tail_sentinel()) {
1333 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1334 param
= param
->get_next();
1337 if (!param
->is_tail_sentinel()) {
1339 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1340 param
= param
->get_next();
1342 nir_builder_instr_insert(&b
, &instr
->instr
);
1345 case nir_intrinsic_memory_barrier
:
1346 case nir_intrinsic_group_memory_barrier
:
1347 case nir_intrinsic_memory_barrier_atomic_counter
:
1348 case nir_intrinsic_memory_barrier_buffer
:
1349 case nir_intrinsic_memory_barrier_image
:
1350 case nir_intrinsic_memory_barrier_shared
:
1351 nir_builder_instr_insert(&b
, &instr
->instr
);
1353 case nir_intrinsic_shader_clock
:
1354 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1355 instr
->num_components
= 2;
1356 nir_builder_instr_insert(&b
, &instr
->instr
);
1358 case nir_intrinsic_begin_invocation_interlock
:
1359 nir_builder_instr_insert(&b
, &instr
->instr
);
1361 case nir_intrinsic_end_invocation_interlock
:
1362 nir_builder_instr_insert(&b
, &instr
->instr
);
1364 case nir_intrinsic_store_ssbo
: {
1365 exec_node
*param
= ir
->actual_parameters
.get_head();
1366 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1368 param
= param
->get_next();
1369 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1371 param
= param
->get_next();
1372 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1374 param
= param
->get_next();
1375 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1378 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1379 if (val
->type
->is_boolean())
1380 nir_val
= nir_b2i32(&b
, nir_val
);
1382 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1383 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1384 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1385 intrinsic_set_std430_align(instr
, val
->type
);
1386 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1387 instr
->num_components
= val
->type
->vector_elements
;
1389 nir_builder_instr_insert(&b
, &instr
->instr
);
1392 case nir_intrinsic_load_ssbo
: {
1393 exec_node
*param
= ir
->actual_parameters
.get_head();
1394 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1396 param
= param
->get_next();
1397 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1399 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1400 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1402 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1403 instr
->num_components
= type
->vector_elements
;
1404 intrinsic_set_std430_align(instr
, type
);
1406 /* Setup destination register */
1407 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1408 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1409 type
->vector_elements
, bit_size
, NULL
);
1411 /* Insert the created nir instruction now since in the case of boolean
1412 * result we will need to emit another instruction after it
1414 nir_builder_instr_insert(&b
, &instr
->instr
);
1417 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1418 * consider a true boolean to be ~0. Fix this up with a != 0
1421 if (type
->is_boolean())
1422 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1425 case nir_intrinsic_ssbo_atomic_add
:
1426 case nir_intrinsic_ssbo_atomic_imin
:
1427 case nir_intrinsic_ssbo_atomic_umin
:
1428 case nir_intrinsic_ssbo_atomic_imax
:
1429 case nir_intrinsic_ssbo_atomic_umax
:
1430 case nir_intrinsic_ssbo_atomic_and
:
1431 case nir_intrinsic_ssbo_atomic_or
:
1432 case nir_intrinsic_ssbo_atomic_xor
:
1433 case nir_intrinsic_ssbo_atomic_exchange
:
1434 case nir_intrinsic_ssbo_atomic_comp_swap
:
1435 case nir_intrinsic_ssbo_atomic_fadd
:
1436 case nir_intrinsic_ssbo_atomic_fmin
:
1437 case nir_intrinsic_ssbo_atomic_fmax
:
1438 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1439 int param_count
= ir
->actual_parameters
.length();
1440 assert(param_count
== 3 || param_count
== 4);
1443 exec_node
*param
= ir
->actual_parameters
.get_head();
1444 ir_instruction
*inst
= (ir_instruction
*) param
;
1445 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1448 param
= param
->get_next();
1449 inst
= (ir_instruction
*) param
;
1450 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1452 /* data1 parameter (this is always present) */
1453 param
= param
->get_next();
1454 inst
= (ir_instruction
*) param
;
1455 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1457 /* data2 parameter (only with atomic_comp_swap) */
1458 if (param_count
== 4) {
1459 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1460 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1461 param
= param
->get_next();
1462 inst
= (ir_instruction
*) param
;
1463 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1467 assert(ir
->return_deref
);
1468 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1469 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1470 nir_builder_instr_insert(&b
, &instr
->instr
);
1473 case nir_intrinsic_load_shared
: {
1474 exec_node
*param
= ir
->actual_parameters
.get_head();
1475 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1477 nir_intrinsic_set_base(instr
, 0);
1478 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1480 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1481 instr
->num_components
= type
->vector_elements
;
1482 intrinsic_set_std430_align(instr
, type
);
1484 /* Setup destination register */
1485 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1486 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1487 type
->vector_elements
, bit_size
, NULL
);
1489 nir_builder_instr_insert(&b
, &instr
->instr
);
1491 /* The value in shared memory is a 32-bit value */
1492 if (type
->is_boolean())
1493 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1496 case nir_intrinsic_store_shared
: {
1497 exec_node
*param
= ir
->actual_parameters
.get_head();
1498 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1500 param
= param
->get_next();
1501 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1503 param
= param
->get_next();
1504 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1507 nir_intrinsic_set_base(instr
, 0);
1508 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1510 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1512 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1513 /* The value in shared memory is a 32-bit value */
1514 if (val
->type
->is_boolean())
1515 nir_val
= nir_b2i32(&b
, nir_val
);
1517 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1518 instr
->num_components
= val
->type
->vector_elements
;
1519 intrinsic_set_std430_align(instr
, val
->type
);
1521 nir_builder_instr_insert(&b
, &instr
->instr
);
1524 case nir_intrinsic_shared_atomic_add
:
1525 case nir_intrinsic_shared_atomic_imin
:
1526 case nir_intrinsic_shared_atomic_umin
:
1527 case nir_intrinsic_shared_atomic_imax
:
1528 case nir_intrinsic_shared_atomic_umax
:
1529 case nir_intrinsic_shared_atomic_and
:
1530 case nir_intrinsic_shared_atomic_or
:
1531 case nir_intrinsic_shared_atomic_xor
:
1532 case nir_intrinsic_shared_atomic_exchange
:
1533 case nir_intrinsic_shared_atomic_comp_swap
:
1534 case nir_intrinsic_shared_atomic_fadd
:
1535 case nir_intrinsic_shared_atomic_fmin
:
1536 case nir_intrinsic_shared_atomic_fmax
:
1537 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1538 int param_count
= ir
->actual_parameters
.length();
1539 assert(param_count
== 2 || param_count
== 3);
1542 exec_node
*param
= ir
->actual_parameters
.get_head();
1543 ir_instruction
*inst
= (ir_instruction
*) param
;
1544 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1546 /* data1 parameter (this is always present) */
1547 param
= param
->get_next();
1548 inst
= (ir_instruction
*) param
;
1549 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1551 /* data2 parameter (only with atomic_comp_swap) */
1552 if (param_count
== 3) {
1553 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1554 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1555 param
= param
->get_next();
1556 inst
= (ir_instruction
*) param
;
1558 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1562 assert(ir
->return_deref
);
1563 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1564 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1565 ir
->return_deref
->type
->vector_elements
,
1567 nir_builder_instr_insert(&b
, &instr
->instr
);
1570 case nir_intrinsic_vote_any
:
1571 case nir_intrinsic_vote_all
:
1572 case nir_intrinsic_vote_ieq
: {
1573 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1574 instr
->num_components
= 1;
1576 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1577 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1579 nir_builder_instr_insert(&b
, &instr
->instr
);
1583 case nir_intrinsic_ballot
: {
1584 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1585 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1586 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1588 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1589 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1591 nir_builder_instr_insert(&b
, &instr
->instr
);
1594 case nir_intrinsic_read_invocation
: {
1595 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1596 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1597 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1599 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1600 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1602 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1603 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1605 nir_builder_instr_insert(&b
, &instr
->instr
);
1608 case nir_intrinsic_read_first_invocation
: {
1609 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1610 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1611 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1613 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1614 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1616 nir_builder_instr_insert(&b
, &instr
->instr
);
1620 unreachable("not reached");
1623 if (ir
->return_deref
)
1624 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1629 struct hash_entry
*entry
=
1630 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1632 nir_function
*callee
= (nir_function
*) entry
->data
;
1634 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1637 nir_deref_instr
*ret_deref
= NULL
;
1638 if (ir
->return_deref
) {
1639 nir_variable
*ret_tmp
=
1640 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1642 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1643 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1646 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1647 actual_node
, &ir
->actual_parameters
) {
1648 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1649 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1651 if (sig_param
->data
.mode
== ir_var_function_out
) {
1652 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1653 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1654 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1655 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1656 nir_src src
= nir_src_for_ssa(val
);
1658 nir_src_copy(&call
->params
[i
], &src
, call
);
1659 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1660 unreachable("unimplemented: inout parameters");
1666 nir_builder_instr_insert(&b
, &call
->instr
);
1668 if (ir
->return_deref
)
1669 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1673 nir_visitor::visit(ir_assignment
*ir
)
1675 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1677 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1678 ir
->lhs
->variable_referenced()->data
.precise
;
1680 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1681 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1682 nir_deref_instr
*lhs
= evaluate_deref(ir
->lhs
);
1683 nir_deref_instr
*rhs
= evaluate_deref(ir
->rhs
);
1684 enum gl_access_qualifier lhs_qualifiers
= deref_get_qualifier(lhs
);
1685 enum gl_access_qualifier rhs_qualifiers
= deref_get_qualifier(rhs
);
1686 if (ir
->condition
) {
1687 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1688 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1690 nir_pop_if(&b
, NULL
);
1692 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1698 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1700 ir
->lhs
->accept(this);
1701 nir_deref_instr
*lhs_deref
= this->deref
;
1702 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1704 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1705 /* GLSL IR will give us the input to the write-masked assignment in a
1706 * single packed vector. So, for example, if the writemask is xzw, then
1707 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1711 unsigned component
= 0;
1712 for (unsigned i
= 0; i
< 4; i
++) {
1713 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1715 src
= nir_swizzle(&b
, src
, swiz
, num_components
);
1718 enum gl_access_qualifier qualifiers
= deref_get_qualifier(lhs_deref
);
1719 if (ir
->condition
) {
1720 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1721 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1723 nir_pop_if(&b
, NULL
);
1725 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1731 * Given an instruction, returns a pointer to its destination or NULL if there
1732 * is no destination.
1734 * Note that this only handles instructions we generate at this level.
1737 get_instr_dest(nir_instr
*instr
)
1739 nir_alu_instr
*alu_instr
;
1740 nir_intrinsic_instr
*intrinsic_instr
;
1741 nir_tex_instr
*tex_instr
;
1743 switch (instr
->type
) {
1744 case nir_instr_type_alu
:
1745 alu_instr
= nir_instr_as_alu(instr
);
1746 return &alu_instr
->dest
.dest
;
1748 case nir_instr_type_intrinsic
:
1749 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1750 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1751 return &intrinsic_instr
->dest
;
1755 case nir_instr_type_tex
:
1756 tex_instr
= nir_instr_as_tex(instr
);
1757 return &tex_instr
->dest
;
1760 unreachable("not reached");
1767 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1770 nir_dest
*dest
= get_instr_dest(instr
);
1773 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1775 nir_builder_instr_insert(&b
, instr
);
1778 assert(dest
->is_ssa
);
1779 this->result
= &dest
->ssa
;
1784 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1787 if (ir
->as_dereference() || ir
->as_constant()) {
1789 * A dereference is being used on the right hand side, which means we
1790 * must emit a variable load.
1793 enum gl_access_qualifier access
= deref_get_qualifier(this->deref
);
1794 this->result
= nir_load_deref_with_access(&b
, this->deref
, access
);
1797 return this->result
;
1801 type_is_float(glsl_base_type type
)
1803 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1804 type
== GLSL_TYPE_FLOAT16
;
1808 type_is_signed(glsl_base_type type
)
1810 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1811 type
== GLSL_TYPE_INT16
;
1815 nir_visitor::visit(ir_expression
*ir
)
1817 /* Some special cases */
1818 switch (ir
->operation
) {
1819 case ir_binop_ubo_load
: {
1820 nir_intrinsic_instr
*load
=
1821 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1822 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1823 glsl_get_bit_size(ir
->type
);
1824 load
->num_components
= ir
->type
->vector_elements
;
1825 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1826 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1827 intrinsic_set_std430_align(load
, ir
->type
);
1828 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1831 * In UBO's, a true boolean value is any non-zero value, but we consider
1832 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1835 if (ir
->type
->is_boolean())
1836 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1841 case ir_unop_interpolate_at_centroid
:
1842 case ir_binop_interpolate_at_offset
:
1843 case ir_binop_interpolate_at_sample
: {
1844 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1845 ir_swizzle
*swizzle
= NULL
;
1847 /* the api does not allow a swizzle here, but the varying packing code
1848 * may have pushed one into here.
1850 swizzle
= ir
->operands
[0]->as_swizzle();
1852 deref
= swizzle
->val
->as_dereference();
1856 deref
->accept(this);
1858 nir_intrinsic_op op
;
1859 if (this->deref
->mode
== nir_var_shader_in
) {
1860 switch (ir
->operation
) {
1861 case ir_unop_interpolate_at_centroid
:
1862 op
= nir_intrinsic_interp_deref_at_centroid
;
1864 case ir_binop_interpolate_at_offset
:
1865 op
= nir_intrinsic_interp_deref_at_offset
;
1867 case ir_binop_interpolate_at_sample
:
1868 op
= nir_intrinsic_interp_deref_at_sample
;
1871 unreachable("Invalid interpolation intrinsic");
1874 /* This case can happen if the vertex shader does not write the
1875 * given varying. In this case, the linker will lower it to a
1876 * global variable. Since interpolating a variable makes no
1877 * sense, we'll just turn it into a load which will probably
1878 * eventually end up as an SSA definition.
1880 assert(this->deref
->mode
== nir_var_shader_temp
);
1881 op
= nir_intrinsic_load_deref
;
1884 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1885 intrin
->num_components
= deref
->type
->vector_elements
;
1886 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1888 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1889 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1890 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1892 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1893 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1896 unsigned swiz
[4] = {
1897 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1900 result
= nir_swizzle(&b
, result
, swiz
,
1901 swizzle
->type
->vector_elements
);
1907 case ir_unop_ssbo_unsized_array_length
: {
1908 nir_intrinsic_instr
*intrin
=
1909 nir_intrinsic_instr_create(b
.shader
,
1910 nir_intrinsic_deref_buffer_array_length
);
1912 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1913 intrin
->src
[0] = nir_src_for_ssa(&evaluate_deref(deref
)->dest
.ssa
);
1915 add_instr(&intrin
->instr
, 1, 32);
1923 nir_ssa_def
*srcs
[4];
1924 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1925 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1927 glsl_base_type types
[4];
1928 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1929 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1931 glsl_base_type out_type
= ir
->type
->base_type
;
1933 switch (ir
->operation
) {
1934 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1935 case ir_unop_logic_not
:
1936 result
= nir_inot(&b
, srcs
[0]);
1939 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1940 : nir_ineg(&b
, srcs
[0]);
1943 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1944 : nir_iabs(&b
, srcs
[0]);
1946 case ir_unop_saturate
:
1947 assert(type_is_float(types
[0]));
1948 result
= nir_fsat(&b
, srcs
[0]);
1951 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1952 : nir_isign(&b
, srcs
[0]);
1954 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1955 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1956 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1957 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1958 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1959 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1960 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1996 case ir_unop_i642u64
:
1997 case ir_unop_u642i64
: {
1998 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1999 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
2000 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
2001 nir_rounding_mode_undef
),
2002 srcs
[0], NULL
, NULL
, NULL
);
2003 /* b2i and b2f don't have fixed bit-size versions so the builder will
2004 * just assume 32 and we have to fix it up here.
2006 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
2010 case ir_unop_bitcast_i2f
:
2011 case ir_unop_bitcast_f2i
:
2012 case ir_unop_bitcast_u2f
:
2013 case ir_unop_bitcast_f2u
:
2014 case ir_unop_bitcast_i642d
:
2015 case ir_unop_bitcast_d2i64
:
2016 case ir_unop_bitcast_u642d
:
2017 case ir_unop_bitcast_d2u64
:
2018 case ir_unop_subroutine_to_int
:
2020 result
= nir_mov(&b
, srcs
[0]);
2022 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
2023 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
2024 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
2025 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
2026 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
2027 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
2028 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
2029 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
2030 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
2031 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
2032 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
2033 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
2034 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
2035 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
2036 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
2037 case ir_unop_pack_snorm_2x16
:
2038 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
2040 case ir_unop_pack_snorm_4x8
:
2041 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
2043 case ir_unop_pack_unorm_2x16
:
2044 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
2046 case ir_unop_pack_unorm_4x8
:
2047 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
2049 case ir_unop_pack_half_2x16
:
2050 result
= nir_pack_half_2x16(&b
, srcs
[0]);
2052 case ir_unop_unpack_snorm_2x16
:
2053 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
2055 case ir_unop_unpack_snorm_4x8
:
2056 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
2058 case ir_unop_unpack_unorm_2x16
:
2059 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
2061 case ir_unop_unpack_unorm_4x8
:
2062 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
2064 case ir_unop_unpack_half_2x16
:
2065 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
2067 case ir_unop_pack_sampler_2x32
:
2068 case ir_unop_pack_image_2x32
:
2069 case ir_unop_pack_double_2x32
:
2070 case ir_unop_pack_int_2x32
:
2071 case ir_unop_pack_uint_2x32
:
2072 result
= nir_pack_64_2x32(&b
, srcs
[0]);
2074 case ir_unop_unpack_sampler_2x32
:
2075 case ir_unop_unpack_image_2x32
:
2076 case ir_unop_unpack_double_2x32
:
2077 case ir_unop_unpack_int_2x32
:
2078 case ir_unop_unpack_uint_2x32
:
2079 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
2081 case ir_unop_bitfield_reverse
:
2082 result
= nir_bitfield_reverse(&b
, srcs
[0]);
2084 case ir_unop_bit_count
:
2085 result
= nir_bit_count(&b
, srcs
[0]);
2087 case ir_unop_find_msb
:
2089 case GLSL_TYPE_UINT
:
2090 result
= nir_ufind_msb(&b
, srcs
[0]);
2093 result
= nir_ifind_msb(&b
, srcs
[0]);
2096 unreachable("Invalid type for findMSB()");
2099 case ir_unop_find_lsb
:
2100 result
= nir_find_lsb(&b
, srcs
[0]);
2104 switch (ir
->type
->vector_elements
) {
2106 switch (ir
->operands
[0]->type
->vector_elements
) {
2107 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
2108 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
2109 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
2110 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
2111 default: unreachable("not reached");
2115 switch (ir
->operands
[0]->type
->vector_elements
) {
2116 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
2117 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
2118 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
2119 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
2120 default: unreachable("not reached");
2124 switch (ir
->operands
[0]->type
->vector_elements
) {
2125 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
2126 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
2127 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
2128 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
2129 default: unreachable("not reached");
2133 switch (ir
->operands
[0]->type
->vector_elements
) {
2134 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
2135 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
2136 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
2137 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
2138 default: unreachable("not reached");
2142 unreachable("not reached");
2145 case ir_unop_get_buffer_size
: {
2146 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
2148 nir_intrinsic_get_buffer_size
);
2149 load
->num_components
= ir
->type
->vector_elements
;
2150 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
2151 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2152 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
2157 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
2158 : nir_iadd(&b
, srcs
[0], srcs
[1]);
2161 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
2162 : nir_isub(&b
, srcs
[0], srcs
[1]);
2165 if (type_is_float(out_type
))
2166 result
= nir_fmul(&b
, srcs
[0], srcs
[1]);
2167 else if (out_type
== GLSL_TYPE_INT64
&&
2168 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
||
2169 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
))
2170 result
= nir_imul_2x32_64(&b
, srcs
[0], srcs
[1]);
2171 else if (out_type
== GLSL_TYPE_UINT64
&&
2172 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
||
2173 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_UINT
))
2174 result
= nir_umul_2x32_64(&b
, srcs
[0], srcs
[1]);
2176 result
= nir_imul(&b
, srcs
[0], srcs
[1]);
2179 if (type_is_float(out_type
))
2180 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
2181 else if (type_is_signed(out_type
))
2182 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
2184 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
2187 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
2188 : nir_umod(&b
, srcs
[0], srcs
[1]);
2191 if (type_is_float(out_type
))
2192 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
2193 else if (type_is_signed(out_type
))
2194 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
2196 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
2199 if (type_is_float(out_type
))
2200 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
2201 else if (type_is_signed(out_type
))
2202 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
2204 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
2206 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
2207 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
2208 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
2209 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
2210 case ir_binop_logic_and
:
2211 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
2213 case ir_binop_logic_or
:
2214 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
2216 case ir_binop_logic_xor
:
2217 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
2219 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
2220 case ir_binop_rshift
:
2221 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
2222 : nir_ushr(&b
, srcs
[0], srcs
[1]);
2224 case ir_binop_imul_high
:
2225 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
2226 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
2228 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
2229 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
2231 if (type_is_float(types
[0]))
2232 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
2233 else if (type_is_signed(types
[0]))
2234 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
2236 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
2238 case ir_binop_gequal
:
2239 if (type_is_float(types
[0]))
2240 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
2241 else if (type_is_signed(types
[0]))
2242 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
2244 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
2246 case ir_binop_equal
:
2247 if (type_is_float(types
[0]))
2248 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
2250 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
2252 case ir_binop_nequal
:
2253 if (type_is_float(types
[0]))
2254 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
2256 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
2258 case ir_binop_all_equal
:
2259 if (type_is_float(types
[0])) {
2260 switch (ir
->operands
[0]->type
->vector_elements
) {
2261 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
2262 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
2263 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
2264 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
2266 unreachable("not reached");
2269 switch (ir
->operands
[0]->type
->vector_elements
) {
2270 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
2271 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
2272 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
2273 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
2275 unreachable("not reached");
2279 case ir_binop_any_nequal
:
2280 if (type_is_float(types
[0])) {
2281 switch (ir
->operands
[0]->type
->vector_elements
) {
2282 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
2283 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
2284 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
2285 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
2287 unreachable("not reached");
2290 switch (ir
->operands
[0]->type
->vector_elements
) {
2291 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
2292 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
2293 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
2294 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
2296 unreachable("not reached");
2301 switch (ir
->operands
[0]->type
->vector_elements
) {
2302 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2303 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2304 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2306 unreachable("not reached");
2309 case ir_binop_vector_extract
: {
2310 result
= nir_channel(&b
, srcs
[0], 0);
2311 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2312 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2313 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2319 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2321 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2324 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2327 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2329 case ir_triop_bitfield_extract
:
2330 result
= (out_type
== GLSL_TYPE_INT
) ?
2331 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2332 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2334 case ir_quadop_bitfield_insert
:
2335 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2337 case ir_quadop_vector
:
2338 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2342 unreachable("not reached");
2347 nir_visitor::visit(ir_swizzle
*ir
)
2349 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2350 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2351 ir
->type
->vector_elements
);
2355 nir_visitor::visit(ir_texture
*ir
)
2362 num_srcs
= 1; /* coordinate */
2367 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2368 num_srcs
= 2; /* coordinate, bias/lod */
2372 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2378 if (ir
->lod_info
.lod
!= NULL
)
2379 num_srcs
= 2; /* coordinate, lod */
2381 num_srcs
= 1; /* coordinate */
2385 op
= nir_texop_txf_ms
;
2386 num_srcs
= 2; /* coordinate, sample_index */
2391 if (ir
->lod_info
.lod
!= NULL
)
2392 num_srcs
= 1; /* lod */
2399 num_srcs
= 1; /* coordinate */
2404 num_srcs
= 1; /* coordinate */
2407 case ir_query_levels
:
2408 op
= nir_texop_query_levels
;
2412 case ir_texture_samples
:
2413 op
= nir_texop_texture_samples
;
2417 case ir_samples_identical
:
2418 op
= nir_texop_samples_identical
;
2419 num_srcs
= 1; /* coordinate */
2423 unreachable("not reached");
2426 if (ir
->projector
!= NULL
)
2428 if (ir
->shadow_comparator
!= NULL
)
2430 /* offsets are constants we store inside nir_tex_intrs.offsets */
2431 if (ir
->offset
!= NULL
&& !ir
->offset
->type
->is_array())
2434 /* Add one for the texture deref */
2437 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2440 instr
->sampler_dim
=
2441 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2442 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2443 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2444 if (instr
->is_shadow
)
2445 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2446 switch (ir
->type
->base_type
) {
2447 case GLSL_TYPE_FLOAT
:
2448 instr
->dest_type
= nir_type_float
;
2451 instr
->dest_type
= nir_type_int
;
2453 case GLSL_TYPE_BOOL
:
2454 case GLSL_TYPE_UINT
:
2455 instr
->dest_type
= nir_type_uint
;
2458 unreachable("not reached");
2461 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2463 /* check for bindless handles */
2464 if (sampler_deref
->mode
!= nir_var_uniform
||
2465 nir_deref_instr_get_variable(sampler_deref
)->data
.bindless
) {
2466 nir_ssa_def
*load
= nir_load_deref(&b
, sampler_deref
);
2467 instr
->src
[0].src
= nir_src_for_ssa(load
);
2468 instr
->src
[0].src_type
= nir_tex_src_texture_handle
;
2469 instr
->src
[1].src
= nir_src_for_ssa(load
);
2470 instr
->src
[1].src_type
= nir_tex_src_sampler_handle
;
2472 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2473 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2474 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2475 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2478 unsigned src_number
= 2;
2480 if (ir
->coordinate
!= NULL
) {
2481 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2482 instr
->src
[src_number
].src
=
2483 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2484 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2488 if (ir
->projector
!= NULL
) {
2489 instr
->src
[src_number
].src
=
2490 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2491 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2495 if (ir
->shadow_comparator
!= NULL
) {
2496 instr
->src
[src_number
].src
=
2497 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2498 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2502 if (ir
->offset
!= NULL
) {
2503 if (ir
->offset
->type
->is_array()) {
2504 for (int i
= 0; i
< ir
->offset
->type
->array_size(); i
++) {
2505 const ir_constant
*c
=
2506 ir
->offset
->as_constant()->get_array_element(i
);
2508 for (unsigned j
= 0; j
< 2; ++j
) {
2509 int val
= c
->get_int_component(j
);
2510 assert(val
<= 31 && val
>= -32);
2511 instr
->tg4_offsets
[i
][j
] = val
;
2515 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2517 instr
->src
[src_number
].src
=
2518 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2519 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2526 instr
->src
[src_number
].src
=
2527 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2528 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2535 if (ir
->lod_info
.lod
!= NULL
) {
2536 instr
->src
[src_number
].src
=
2537 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2538 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2544 instr
->src
[src_number
].src
=
2545 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2546 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2548 instr
->src
[src_number
].src
=
2549 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2550 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2555 instr
->src
[src_number
].src
=
2556 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2557 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2562 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2569 assert(src_number
== num_srcs
);
2571 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2572 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2576 nir_visitor::visit(ir_constant
*ir
)
2579 * We don't know if this variable is an array or struct that gets
2580 * dereferenced, so do the safe thing an make it a variable with a
2581 * constant initializer and return a dereference.
2585 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2586 var
->data
.read_only
= true;
2587 var
->constant_initializer
= constant_copy(ir
, var
);
2589 this->deref
= nir_build_deref_var(&b
, var
);
2593 nir_visitor::visit(ir_dereference_variable
*ir
)
2595 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2596 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2598 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2599 if (param
== ir
->variable_referenced()) {
2605 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2606 nir_var_function_temp
, ir
->type
, 0);
2610 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2612 struct hash_entry
*entry
=
2613 _mesa_hash_table_search(this->var_table
, ir
->var
);
2615 nir_variable
*var
= (nir_variable
*) entry
->data
;
2617 this->deref
= nir_build_deref_var(&b
, var
);
2621 nir_visitor::visit(ir_dereference_record
*ir
)
2623 ir
->record
->accept(this);
2625 int field_index
= ir
->field_idx
;
2626 assert(field_index
>= 0);
2628 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2632 nir_visitor::visit(ir_dereference_array
*ir
)
2634 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2636 ir
->array
->accept(this);
2638 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2642 nir_visitor::visit(ir_barrier
*)
2644 nir_intrinsic_instr
*instr
=
2645 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2646 nir_builder_instr_insert(&b
, &instr
->instr
);
2650 glsl_float64_funcs_to_nir(struct gl_context
*ctx
,
2651 const nir_shader_compiler_options
*options
)
2653 /* We pretend it's a vertex shader. Ultimately, the stage shouldn't
2654 * matter because we're not optimizing anything here.
2656 struct gl_shader
*sh
= _mesa_new_shader(-1, MESA_SHADER_VERTEX
);
2657 sh
->Source
= float64_source
;
2658 sh
->CompileStatus
= COMPILE_FAILURE
;
2659 _mesa_glsl_compile_shader(ctx
, sh
, false, false, true);
2661 if (!sh
->CompileStatus
) {
2664 "fp64 software impl compile failed:\n%s\nsource:\n%s\n",
2665 sh
->InfoLog
, float64_source
);
2670 nir_shader
*nir
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, options
, NULL
);
2672 nir_visitor
v1(ctx
, nir
);
2673 nir_function_visitor
v2(&v1
);
2675 visit_exec_list(sh
->ir
, &v1
);
2677 /* _mesa_delete_shader will try to free sh->Source but it's static const */
2679 _mesa_delete_shader(ctx
, sh
);
2681 nir_validate_shader(nir
, "float64_funcs_to_nir");
2683 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
2684 NIR_PASS_V(nir
, nir_lower_returns
);
2685 NIR_PASS_V(nir
, nir_inline_functions
);
2686 NIR_PASS_V(nir
, nir_opt_deref
);