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_builtin_builder.h"
38 #include "compiler/nir/nir_deref.h"
39 #include "main/errors.h"
40 #include "main/imports.h"
41 #include "main/mtypes.h"
42 #include "main/shaderobj.h"
43 #include "util/u_math.h"
46 * pass to lower GLSL IR to NIR
48 * This will lower variable dereferences to loads/stores of corresponding
49 * variables in NIR - the variables will be converted to registers in a later
55 class nir_visitor
: public ir_visitor
58 nir_visitor(gl_context
*ctx
, nir_shader
*shader
);
61 virtual void visit(ir_variable
*);
62 virtual void visit(ir_function
*);
63 virtual void visit(ir_function_signature
*);
64 virtual void visit(ir_loop
*);
65 virtual void visit(ir_if
*);
66 virtual void visit(ir_discard
*);
67 virtual void visit(ir_demote
*);
68 virtual void visit(ir_loop_jump
*);
69 virtual void visit(ir_return
*);
70 virtual void visit(ir_call
*);
71 virtual void visit(ir_assignment
*);
72 virtual void visit(ir_emit_vertex
*);
73 virtual void visit(ir_end_primitive
*);
74 virtual void visit(ir_expression
*);
75 virtual void visit(ir_swizzle
*);
76 virtual void visit(ir_texture
*);
77 virtual void visit(ir_constant
*);
78 virtual void visit(ir_dereference_variable
*);
79 virtual void visit(ir_dereference_record
*);
80 virtual void visit(ir_dereference_array
*);
81 virtual void visit(ir_barrier
*);
83 void create_function(ir_function_signature
*ir
);
86 void add_instr(nir_instr
*instr
, unsigned num_components
, unsigned bit_size
);
87 nir_ssa_def
*evaluate_rvalue(ir_rvalue
*ir
);
89 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
**srcs
);
90 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
,
93 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
94 nir_ssa_def
*src2
, nir_ssa_def
*src3
);
99 nir_function_impl
*impl
;
101 nir_ssa_def
*result
; /* result of the expression tree last visited */
103 nir_deref_instr
*evaluate_deref(ir_instruction
*ir
);
105 nir_constant
*constant_copy(ir_constant
*ir
, void *mem_ctx
);
107 /* most recent deref instruction created */
108 nir_deref_instr
*deref
;
110 /* whether the IR we're operating on is per-function or global */
113 ir_function_signature
*sig
;
115 /* map of ir_variable -> nir_variable */
116 struct hash_table
*var_table
;
118 /* map of ir_function_signature -> nir_function_overload */
119 struct hash_table
*overload_table
;
123 * This visitor runs before the main visitor, calling create_function() for
124 * each function so that the main visitor can resolve forward references in
128 class nir_function_visitor
: public ir_hierarchical_visitor
131 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
134 virtual ir_visitor_status
visit_enter(ir_function
*);
137 nir_visitor
*visitor
;
140 /* glsl_to_nir can only handle converting certain function paramaters
141 * to NIR. This visitor checks for parameters it can't currently handle.
143 class ir_function_param_visitor
: public ir_hierarchical_visitor
146 ir_function_param_visitor()
151 virtual ir_visitor_status
visit_enter(ir_function_signature
*ir
)
154 if (ir
->is_intrinsic())
155 return visit_continue
;
157 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
158 if (!param
->type
->is_vector() || !param
->type
->is_scalar()) {
163 if (param
->data
.mode
== ir_var_function_inout
) {
169 return visit_continue
;
175 } /* end of anonymous namespace */
179 has_unsupported_function_param(exec_list
*ir
)
181 ir_function_param_visitor visitor
;
182 visit_list_elements(&visitor
, ir
);
183 return visitor
.unsupported
;
187 glsl_to_nir(struct gl_context
*ctx
,
188 const struct gl_shader_program
*shader_prog
,
189 gl_shader_stage stage
,
190 const nir_shader_compiler_options
*options
)
192 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
194 const struct gl_shader_compiler_options
*gl_options
=
195 &ctx
->Const
.ShaderCompilerOptions
[stage
];
197 /* glsl_to_nir can only handle converting certain function paramaters
198 * to NIR. If we find something we can't handle then we get the GLSL IR
199 * opts to remove it before we continue on.
201 * TODO: add missing glsl ir to nir support and remove this loop.
203 while (has_unsupported_function_param(sh
->ir
)) {
204 do_common_optimization(sh
->ir
, true, true, gl_options
,
205 ctx
->Const
.NativeIntegers
);
208 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
211 nir_visitor
v1(ctx
, shader
);
212 nir_function_visitor
v2(&v1
);
214 visit_exec_list(sh
->ir
, &v1
);
216 nir_validate_shader(shader
, "after glsl to nir, before function inline");
218 /* We have to lower away local constant initializers right before we
219 * inline functions. That way they get properly initialized at the top
220 * of the function and not at the top of its caller.
222 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
223 nir_lower_returns(shader
);
224 nir_inline_functions(shader
);
225 nir_opt_deref(shader
);
227 nir_validate_shader(shader
, "after function inlining and return lowering");
229 /* Now that we have inlined everything remove all of the functions except
232 foreach_list_typed_safe(nir_function
, function
, node
, &(shader
)->functions
){
233 if (strcmp("main", function
->name
) != 0) {
234 exec_node_remove(&function
->node
);
238 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
239 if (shader_prog
->Label
)
240 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
242 /* Check for transform feedback varyings specified via the API */
243 shader
->info
.has_transform_feedback_varyings
=
244 shader_prog
->TransformFeedback
.NumVarying
> 0;
246 /* Check for transform feedback varyings specified in the Shader */
247 if (shader_prog
->last_vert_prog
)
248 shader
->info
.has_transform_feedback_varyings
|=
249 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
251 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
) {
252 shader
->info
.fs
.pixel_center_integer
= sh
->Program
->info
.fs
.pixel_center_integer
;
253 shader
->info
.fs
.origin_upper_left
= sh
->Program
->info
.fs
.origin_upper_left
;
259 nir_visitor::nir_visitor(gl_context
*ctx
, nir_shader
*shader
)
261 this->supports_std430
= ctx
->Const
.UseSTD430AsDefaultPacking
;
262 this->shader
= shader
;
263 this->is_global
= true;
264 this->var_table
= _mesa_pointer_hash_table_create(NULL
);
265 this->overload_table
= _mesa_pointer_hash_table_create(NULL
);
270 memset(&this->b
, 0, sizeof(this->b
));
273 nir_visitor::~nir_visitor()
275 _mesa_hash_table_destroy(this->var_table
, NULL
);
276 _mesa_hash_table_destroy(this->overload_table
, NULL
);
280 nir_visitor::evaluate_deref(ir_instruction
*ir
)
287 nir_visitor::constant_copy(ir_constant
*ir
, void *mem_ctx
)
292 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
294 const unsigned rows
= ir
->type
->vector_elements
;
295 const unsigned cols
= ir
->type
->matrix_columns
;
298 ret
->num_elements
= 0;
299 switch (ir
->type
->base_type
) {
301 /* Only float base types can be matrices. */
304 for (unsigned r
= 0; r
< rows
; r
++)
305 ret
->values
[r
].u32
= ir
->value
.u
[r
];
310 /* Only float base types can be matrices. */
313 for (unsigned r
= 0; r
< rows
; r
++)
314 ret
->values
[r
].i32
= ir
->value
.i
[r
];
318 case GLSL_TYPE_FLOAT
:
319 case GLSL_TYPE_DOUBLE
:
321 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*, cols
);
322 ret
->num_elements
= cols
;
323 for (unsigned c
= 0; c
< cols
; c
++) {
324 nir_constant
*col_const
= rzalloc(mem_ctx
, nir_constant
);
325 col_const
->num_elements
= 0;
326 switch (ir
->type
->base_type
) {
327 case GLSL_TYPE_FLOAT
:
328 for (unsigned r
= 0; r
< rows
; r
++)
329 col_const
->values
[r
].f32
= ir
->value
.f
[c
* rows
+ r
];
332 case GLSL_TYPE_DOUBLE
:
333 for (unsigned r
= 0; r
< rows
; r
++)
334 col_const
->values
[r
].f64
= ir
->value
.d
[c
* rows
+ r
];
338 unreachable("Cannot get here from the first level switch");
340 ret
->elements
[c
] = col_const
;
343 switch (ir
->type
->base_type
) {
344 case GLSL_TYPE_FLOAT
:
345 for (unsigned r
= 0; r
< rows
; r
++)
346 ret
->values
[r
].f32
= ir
->value
.f
[r
];
349 case GLSL_TYPE_DOUBLE
:
350 for (unsigned r
= 0; r
< rows
; r
++)
351 ret
->values
[r
].f64
= ir
->value
.d
[r
];
355 unreachable("Cannot get here from the first level switch");
360 case GLSL_TYPE_UINT64
:
361 /* Only float base types can be matrices. */
364 for (unsigned r
= 0; r
< rows
; r
++)
365 ret
->values
[r
].u64
= ir
->value
.u64
[r
];
368 case GLSL_TYPE_INT64
:
369 /* Only float base types can be matrices. */
372 for (unsigned r
= 0; r
< rows
; r
++)
373 ret
->values
[r
].i64
= ir
->value
.i64
[r
];
377 /* Only float base types can be matrices. */
380 for (unsigned r
= 0; r
< rows
; r
++)
381 ret
->values
[r
].b
= ir
->value
.b
[r
];
385 case GLSL_TYPE_STRUCT
:
386 case GLSL_TYPE_ARRAY
:
387 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
389 ret
->num_elements
= ir
->type
->length
;
391 for (i
= 0; i
< ir
->type
->length
; i
++)
392 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
396 unreachable("not reached");
402 static const glsl_type
*
403 wrap_type_in_array(const glsl_type
*elem_type
, const glsl_type
*array_type
)
405 if (!array_type
->is_array())
408 elem_type
= wrap_type_in_array(elem_type
, array_type
->fields
.array
);
410 return glsl_type::get_array_instance(elem_type
, array_type
->length
);
414 nir_visitor::visit(ir_variable
*ir
)
416 /* TODO: In future we should switch to using the NIR lowering pass but for
417 * now just ignore these variables as GLSL IR should have lowered them.
418 * Anything remaining are just dead vars that weren't cleaned up.
420 if (ir
->data
.mode
== ir_var_shader_shared
)
423 /* FINISHME: inout parameters */
424 assert(ir
->data
.mode
!= ir_var_function_inout
);
426 if (ir
->data
.mode
== ir_var_function_out
)
429 nir_variable
*var
= rzalloc(shader
, nir_variable
);
430 var
->type
= ir
->type
;
431 var
->name
= ralloc_strdup(var
, ir
->name
);
433 var
->data
.always_active_io
= ir
->data
.always_active_io
;
434 var
->data
.read_only
= ir
->data
.read_only
;
435 var
->data
.centroid
= ir
->data
.centroid
;
436 var
->data
.sample
= ir
->data
.sample
;
437 var
->data
.patch
= ir
->data
.patch
;
438 var
->data
.invariant
= ir
->data
.invariant
;
439 var
->data
.location
= ir
->data
.location
;
440 var
->data
.stream
= ir
->data
.stream
;
441 if (ir
->data
.stream
& (1u << 31))
442 var
->data
.stream
|= NIR_STREAM_PACKED
;
443 var
->data
.compact
= false;
445 switch(ir
->data
.mode
) {
447 case ir_var_temporary
:
449 var
->data
.mode
= nir_var_shader_temp
;
451 var
->data
.mode
= nir_var_function_temp
;
454 case ir_var_function_in
:
455 case ir_var_const_in
:
456 var
->data
.mode
= nir_var_function_temp
;
459 case ir_var_shader_in
:
460 if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
461 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
462 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
463 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
464 var
->data
.mode
= nir_var_system_value
;
466 var
->data
.mode
= nir_var_shader_in
;
468 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
469 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
470 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
471 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
474 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
475 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
476 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
477 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
482 case ir_var_shader_out
:
483 var
->data
.mode
= nir_var_shader_out
;
484 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
485 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
486 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
487 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
490 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
491 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
492 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
493 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
498 if (ir
->get_interface_type())
499 var
->data
.mode
= nir_var_mem_ubo
;
501 var
->data
.mode
= nir_var_uniform
;
504 case ir_var_shader_storage
:
505 var
->data
.mode
= nir_var_mem_ssbo
;
508 case ir_var_system_value
:
509 var
->data
.mode
= nir_var_system_value
;
513 unreachable("not reached");
516 unsigned mem_access
= 0;
517 if (ir
->data
.memory_read_only
)
518 mem_access
|= ACCESS_NON_WRITEABLE
;
519 if (ir
->data
.memory_write_only
)
520 mem_access
|= ACCESS_NON_READABLE
;
521 if (ir
->data
.memory_coherent
)
522 mem_access
|= ACCESS_COHERENT
;
523 if (ir
->data
.memory_volatile
)
524 mem_access
|= ACCESS_VOLATILE
;
525 if (ir
->data
.memory_restrict
)
526 mem_access
|= ACCESS_RESTRICT
;
528 /* For UBO and SSBO variables, we need explicit types */
529 if (var
->data
.mode
& (nir_var_mem_ubo
| nir_var_mem_ssbo
)) {
530 const glsl_type
*explicit_ifc_type
=
531 ir
->get_interface_type()->get_explicit_interface_type(supports_std430
);
533 if (ir
->type
->without_array()->is_interface()) {
534 /* If the type contains the interface, wrap the explicit type in the
535 * right number of arrays.
537 var
->type
= wrap_type_in_array(explicit_ifc_type
, ir
->type
);
539 /* Otherwise, this variable is one entry in the interface */
540 UNUSED
bool found
= false;
541 for (unsigned i
= 0; i
< explicit_ifc_type
->length
; i
++) {
542 const glsl_struct_field
*field
=
543 &explicit_ifc_type
->fields
.structure
[i
];
544 if (strcmp(ir
->name
, field
->name
) != 0)
547 var
->type
= field
->type
;
548 if (field
->memory_read_only
)
549 mem_access
|= ACCESS_NON_WRITEABLE
;
550 if (field
->memory_write_only
)
551 mem_access
|= ACCESS_NON_READABLE
;
552 if (field
->memory_coherent
)
553 mem_access
|= ACCESS_COHERENT
;
554 if (field
->memory_volatile
)
555 mem_access
|= ACCESS_VOLATILE
;
556 if (field
->memory_restrict
)
557 mem_access
|= ACCESS_RESTRICT
;
566 var
->data
.interpolation
= ir
->data
.interpolation
;
567 var
->data
.location_frac
= ir
->data
.location_frac
;
569 switch (ir
->data
.depth_layout
) {
570 case ir_depth_layout_none
:
571 var
->data
.depth_layout
= nir_depth_layout_none
;
573 case ir_depth_layout_any
:
574 var
->data
.depth_layout
= nir_depth_layout_any
;
576 case ir_depth_layout_greater
:
577 var
->data
.depth_layout
= nir_depth_layout_greater
;
579 case ir_depth_layout_less
:
580 var
->data
.depth_layout
= nir_depth_layout_less
;
582 case ir_depth_layout_unchanged
:
583 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
586 unreachable("not reached");
589 var
->data
.index
= ir
->data
.index
;
590 var
->data
.descriptor_set
= 0;
591 var
->data
.binding
= ir
->data
.binding
;
592 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
593 var
->data
.bindless
= ir
->data
.bindless
;
594 var
->data
.offset
= ir
->data
.offset
;
595 var
->data
.access
= (gl_access_qualifier
)mem_access
;
597 if (var
->type
->without_array()->is_image()) {
598 var
->data
.image
.format
= ir
->data
.image_format
;
599 } else if (var
->data
.mode
== nir_var_shader_out
) {
600 var
->data
.xfb
.buffer
= ir
->data
.xfb_buffer
;
601 var
->data
.xfb
.stride
= ir
->data
.xfb_stride
;
604 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
605 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
606 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_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_demote
*ir
)
781 nir_intrinsic_instr
*demote
=
782 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_demote
);
784 nir_builder_instr_insert(&b
, &demote
->instr
);
788 nir_visitor::visit(ir_emit_vertex
*ir
)
790 nir_intrinsic_instr
*instr
=
791 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
792 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
793 nir_builder_instr_insert(&b
, &instr
->instr
);
797 nir_visitor::visit(ir_end_primitive
*ir
)
799 nir_intrinsic_instr
*instr
=
800 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
801 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
802 nir_builder_instr_insert(&b
, &instr
->instr
);
806 nir_visitor::visit(ir_loop_jump
*ir
)
810 case ir_loop_jump::jump_break
:
811 type
= nir_jump_break
;
813 case ir_loop_jump::jump_continue
:
814 type
= nir_jump_continue
;
817 unreachable("not reached");
820 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
821 nir_builder_instr_insert(&b
, &instr
->instr
);
825 nir_visitor::visit(ir_return
*ir
)
827 if (ir
->value
!= NULL
) {
828 nir_deref_instr
*ret_deref
=
829 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
830 nir_var_function_temp
, ir
->value
->type
, 0);
832 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
833 nir_store_deref(&b
, ret_deref
, val
, ~0);
836 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
837 nir_builder_instr_insert(&b
, &instr
->instr
);
841 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
843 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
844 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
845 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
848 /* Accumulate any qualifiers along the deref chain to get the actual
849 * load/store qualifier.
852 static enum gl_access_qualifier
853 deref_get_qualifier(nir_deref_instr
*deref
)
856 nir_deref_path_init(&path
, deref
, NULL
);
858 unsigned qualifiers
= path
.path
[0]->var
->data
.access
;
860 const glsl_type
*parent_type
= path
.path
[0]->type
;
861 for (nir_deref_instr
**cur_ptr
= &path
.path
[1]; *cur_ptr
; cur_ptr
++) {
862 nir_deref_instr
*cur
= *cur_ptr
;
864 if (parent_type
->is_interface()) {
865 const struct glsl_struct_field
*field
=
866 &parent_type
->fields
.structure
[cur
->strct
.index
];
867 if (field
->memory_read_only
)
868 qualifiers
|= ACCESS_NON_WRITEABLE
;
869 if (field
->memory_write_only
)
870 qualifiers
|= ACCESS_NON_READABLE
;
871 if (field
->memory_coherent
)
872 qualifiers
|= ACCESS_COHERENT
;
873 if (field
->memory_volatile
)
874 qualifiers
|= ACCESS_VOLATILE
;
875 if (field
->memory_restrict
)
876 qualifiers
|= ACCESS_RESTRICT
;
879 parent_type
= cur
->type
;
882 nir_deref_path_finish(&path
);
884 return (gl_access_qualifier
) qualifiers
;
888 nir_visitor::visit(ir_call
*ir
)
890 if (ir
->callee
->is_intrinsic()) {
893 switch (ir
->callee
->intrinsic_id
) {
894 case ir_intrinsic_generic_atomic_add
:
895 op
= ir
->return_deref
->type
->is_integer_32_64()
896 ? nir_intrinsic_deref_atomic_add
: nir_intrinsic_deref_atomic_fadd
;
898 case ir_intrinsic_generic_atomic_and
:
899 op
= nir_intrinsic_deref_atomic_and
;
901 case ir_intrinsic_generic_atomic_or
:
902 op
= nir_intrinsic_deref_atomic_or
;
904 case ir_intrinsic_generic_atomic_xor
:
905 op
= nir_intrinsic_deref_atomic_xor
;
907 case ir_intrinsic_generic_atomic_min
:
908 assert(ir
->return_deref
);
909 if (ir
->return_deref
->type
== glsl_type::int_type
)
910 op
= nir_intrinsic_deref_atomic_imin
;
911 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
912 op
= nir_intrinsic_deref_atomic_umin
;
913 else if (ir
->return_deref
->type
== glsl_type::float_type
)
914 op
= nir_intrinsic_deref_atomic_fmin
;
916 unreachable("Invalid type");
918 case ir_intrinsic_generic_atomic_max
:
919 assert(ir
->return_deref
);
920 if (ir
->return_deref
->type
== glsl_type::int_type
)
921 op
= nir_intrinsic_deref_atomic_imax
;
922 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
923 op
= nir_intrinsic_deref_atomic_umax
;
924 else if (ir
->return_deref
->type
== glsl_type::float_type
)
925 op
= nir_intrinsic_deref_atomic_fmax
;
927 unreachable("Invalid type");
929 case ir_intrinsic_generic_atomic_exchange
:
930 op
= nir_intrinsic_deref_atomic_exchange
;
932 case ir_intrinsic_generic_atomic_comp_swap
:
933 op
= ir
->return_deref
->type
->is_integer_32_64()
934 ? nir_intrinsic_deref_atomic_comp_swap
935 : nir_intrinsic_deref_atomic_fcomp_swap
;
937 case ir_intrinsic_atomic_counter_read
:
938 op
= nir_intrinsic_atomic_counter_read_deref
;
940 case ir_intrinsic_atomic_counter_increment
:
941 op
= nir_intrinsic_atomic_counter_inc_deref
;
943 case ir_intrinsic_atomic_counter_predecrement
:
944 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
946 case ir_intrinsic_atomic_counter_add
:
947 op
= nir_intrinsic_atomic_counter_add_deref
;
949 case ir_intrinsic_atomic_counter_and
:
950 op
= nir_intrinsic_atomic_counter_and_deref
;
952 case ir_intrinsic_atomic_counter_or
:
953 op
= nir_intrinsic_atomic_counter_or_deref
;
955 case ir_intrinsic_atomic_counter_xor
:
956 op
= nir_intrinsic_atomic_counter_xor_deref
;
958 case ir_intrinsic_atomic_counter_min
:
959 op
= nir_intrinsic_atomic_counter_min_deref
;
961 case ir_intrinsic_atomic_counter_max
:
962 op
= nir_intrinsic_atomic_counter_max_deref
;
964 case ir_intrinsic_atomic_counter_exchange
:
965 op
= nir_intrinsic_atomic_counter_exchange_deref
;
967 case ir_intrinsic_atomic_counter_comp_swap
:
968 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
970 case ir_intrinsic_image_load
:
971 op
= nir_intrinsic_image_deref_load
;
973 case ir_intrinsic_image_store
:
974 op
= nir_intrinsic_image_deref_store
;
976 case ir_intrinsic_image_atomic_add
:
977 op
= ir
->return_deref
->type
->is_integer_32_64()
978 ? nir_intrinsic_image_deref_atomic_add
979 : nir_intrinsic_image_deref_atomic_fadd
;
981 case ir_intrinsic_image_atomic_min
:
982 if (ir
->return_deref
->type
== glsl_type::int_type
)
983 op
= nir_intrinsic_image_deref_atomic_imin
;
984 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
985 op
= nir_intrinsic_image_deref_atomic_umin
;
987 unreachable("Invalid type");
989 case ir_intrinsic_image_atomic_max
:
990 if (ir
->return_deref
->type
== glsl_type::int_type
)
991 op
= nir_intrinsic_image_deref_atomic_imax
;
992 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
993 op
= nir_intrinsic_image_deref_atomic_umax
;
995 unreachable("Invalid type");
997 case ir_intrinsic_image_atomic_and
:
998 op
= nir_intrinsic_image_deref_atomic_and
;
1000 case ir_intrinsic_image_atomic_or
:
1001 op
= nir_intrinsic_image_deref_atomic_or
;
1003 case ir_intrinsic_image_atomic_xor
:
1004 op
= nir_intrinsic_image_deref_atomic_xor
;
1006 case ir_intrinsic_image_atomic_exchange
:
1007 op
= nir_intrinsic_image_deref_atomic_exchange
;
1009 case ir_intrinsic_image_atomic_comp_swap
:
1010 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
1012 case ir_intrinsic_image_atomic_inc_wrap
:
1013 op
= nir_intrinsic_image_deref_atomic_inc_wrap
;
1015 case ir_intrinsic_image_atomic_dec_wrap
:
1016 op
= nir_intrinsic_image_deref_atomic_dec_wrap
;
1018 case ir_intrinsic_memory_barrier
:
1019 op
= nir_intrinsic_memory_barrier
;
1021 case ir_intrinsic_image_size
:
1022 op
= nir_intrinsic_image_deref_size
;
1024 case ir_intrinsic_image_samples
:
1025 op
= nir_intrinsic_image_deref_samples
;
1027 case ir_intrinsic_ssbo_store
:
1028 op
= nir_intrinsic_store_ssbo
;
1030 case ir_intrinsic_ssbo_load
:
1031 op
= nir_intrinsic_load_ssbo
;
1033 case ir_intrinsic_ssbo_atomic_add
:
1034 op
= ir
->return_deref
->type
->is_integer_32_64()
1035 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
1037 case ir_intrinsic_ssbo_atomic_and
:
1038 op
= nir_intrinsic_ssbo_atomic_and
;
1040 case ir_intrinsic_ssbo_atomic_or
:
1041 op
= nir_intrinsic_ssbo_atomic_or
;
1043 case ir_intrinsic_ssbo_atomic_xor
:
1044 op
= nir_intrinsic_ssbo_atomic_xor
;
1046 case ir_intrinsic_ssbo_atomic_min
:
1047 assert(ir
->return_deref
);
1048 if (ir
->return_deref
->type
== glsl_type::int_type
)
1049 op
= nir_intrinsic_ssbo_atomic_imin
;
1050 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1051 op
= nir_intrinsic_ssbo_atomic_umin
;
1052 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1053 op
= nir_intrinsic_ssbo_atomic_fmin
;
1055 unreachable("Invalid type");
1057 case ir_intrinsic_ssbo_atomic_max
:
1058 assert(ir
->return_deref
);
1059 if (ir
->return_deref
->type
== glsl_type::int_type
)
1060 op
= nir_intrinsic_ssbo_atomic_imax
;
1061 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1062 op
= nir_intrinsic_ssbo_atomic_umax
;
1063 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1064 op
= nir_intrinsic_ssbo_atomic_fmax
;
1066 unreachable("Invalid type");
1068 case ir_intrinsic_ssbo_atomic_exchange
:
1069 op
= nir_intrinsic_ssbo_atomic_exchange
;
1071 case ir_intrinsic_ssbo_atomic_comp_swap
:
1072 op
= ir
->return_deref
->type
->is_integer_32_64()
1073 ? nir_intrinsic_ssbo_atomic_comp_swap
1074 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
1076 case ir_intrinsic_shader_clock
:
1077 op
= nir_intrinsic_shader_clock
;
1079 case ir_intrinsic_begin_invocation_interlock
:
1080 op
= nir_intrinsic_begin_invocation_interlock
;
1082 case ir_intrinsic_end_invocation_interlock
:
1083 op
= nir_intrinsic_end_invocation_interlock
;
1085 case ir_intrinsic_group_memory_barrier
:
1086 op
= nir_intrinsic_group_memory_barrier
;
1088 case ir_intrinsic_memory_barrier_atomic_counter
:
1089 op
= nir_intrinsic_memory_barrier_atomic_counter
;
1091 case ir_intrinsic_memory_barrier_buffer
:
1092 op
= nir_intrinsic_memory_barrier_buffer
;
1094 case ir_intrinsic_memory_barrier_image
:
1095 op
= nir_intrinsic_memory_barrier_image
;
1097 case ir_intrinsic_memory_barrier_shared
:
1098 op
= nir_intrinsic_memory_barrier_shared
;
1100 case ir_intrinsic_shared_load
:
1101 op
= nir_intrinsic_load_shared
;
1103 case ir_intrinsic_shared_store
:
1104 op
= nir_intrinsic_store_shared
;
1106 case ir_intrinsic_shared_atomic_add
:
1107 op
= ir
->return_deref
->type
->is_integer_32_64()
1108 ? nir_intrinsic_shared_atomic_add
1109 : nir_intrinsic_shared_atomic_fadd
;
1111 case ir_intrinsic_shared_atomic_and
:
1112 op
= nir_intrinsic_shared_atomic_and
;
1114 case ir_intrinsic_shared_atomic_or
:
1115 op
= nir_intrinsic_shared_atomic_or
;
1117 case ir_intrinsic_shared_atomic_xor
:
1118 op
= nir_intrinsic_shared_atomic_xor
;
1120 case ir_intrinsic_shared_atomic_min
:
1121 assert(ir
->return_deref
);
1122 if (ir
->return_deref
->type
== glsl_type::int_type
)
1123 op
= nir_intrinsic_shared_atomic_imin
;
1124 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1125 op
= nir_intrinsic_shared_atomic_umin
;
1126 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1127 op
= nir_intrinsic_shared_atomic_fmin
;
1129 unreachable("Invalid type");
1131 case ir_intrinsic_shared_atomic_max
:
1132 assert(ir
->return_deref
);
1133 if (ir
->return_deref
->type
== glsl_type::int_type
)
1134 op
= nir_intrinsic_shared_atomic_imax
;
1135 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1136 op
= nir_intrinsic_shared_atomic_umax
;
1137 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1138 op
= nir_intrinsic_shared_atomic_fmax
;
1140 unreachable("Invalid type");
1142 case ir_intrinsic_shared_atomic_exchange
:
1143 op
= nir_intrinsic_shared_atomic_exchange
;
1145 case ir_intrinsic_shared_atomic_comp_swap
:
1146 op
= ir
->return_deref
->type
->is_integer_32_64()
1147 ? nir_intrinsic_shared_atomic_comp_swap
1148 : nir_intrinsic_shared_atomic_fcomp_swap
;
1150 case ir_intrinsic_vote_any
:
1151 op
= nir_intrinsic_vote_any
;
1153 case ir_intrinsic_vote_all
:
1154 op
= nir_intrinsic_vote_all
;
1156 case ir_intrinsic_vote_eq
:
1157 op
= nir_intrinsic_vote_ieq
;
1159 case ir_intrinsic_ballot
:
1160 op
= nir_intrinsic_ballot
;
1162 case ir_intrinsic_read_invocation
:
1163 op
= nir_intrinsic_read_invocation
;
1165 case ir_intrinsic_read_first_invocation
:
1166 op
= nir_intrinsic_read_first_invocation
;
1168 case ir_intrinsic_helper_invocation
:
1169 op
= nir_intrinsic_is_helper_invocation
;
1172 unreachable("not reached");
1175 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
1176 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
1179 case nir_intrinsic_deref_atomic_add
:
1180 case nir_intrinsic_deref_atomic_imin
:
1181 case nir_intrinsic_deref_atomic_umin
:
1182 case nir_intrinsic_deref_atomic_imax
:
1183 case nir_intrinsic_deref_atomic_umax
:
1184 case nir_intrinsic_deref_atomic_and
:
1185 case nir_intrinsic_deref_atomic_or
:
1186 case nir_intrinsic_deref_atomic_xor
:
1187 case nir_intrinsic_deref_atomic_exchange
:
1188 case nir_intrinsic_deref_atomic_comp_swap
:
1189 case nir_intrinsic_deref_atomic_fadd
:
1190 case nir_intrinsic_deref_atomic_fmin
:
1191 case nir_intrinsic_deref_atomic_fmax
:
1192 case nir_intrinsic_deref_atomic_fcomp_swap
: {
1193 int param_count
= ir
->actual_parameters
.length();
1194 assert(param_count
== 2 || param_count
== 3);
1197 exec_node
*param
= ir
->actual_parameters
.get_head();
1198 ir_rvalue
*rvalue
= (ir_rvalue
*) param
;
1199 ir_dereference
*deref
= rvalue
->as_dereference();
1200 ir_swizzle
*swizzle
= NULL
;
1202 /* We may have a swizzle to pick off a single vec4 component */
1203 swizzle
= rvalue
->as_swizzle();
1204 assert(swizzle
&& swizzle
->type
->vector_elements
== 1);
1205 deref
= swizzle
->val
->as_dereference();
1208 nir_deref_instr
*nir_deref
= evaluate_deref(deref
);
1210 nir_deref
= nir_build_deref_array_imm(&b
, nir_deref
,
1213 instr
->src
[0] = nir_src_for_ssa(&nir_deref
->dest
.ssa
);
1215 nir_intrinsic_set_access(instr
, deref_get_qualifier(nir_deref
));
1217 /* data1 parameter (this is always present) */
1218 param
= param
->get_next();
1219 ir_instruction
*inst
= (ir_instruction
*) param
;
1220 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1222 /* data2 parameter (only with atomic_comp_swap) */
1223 if (param_count
== 3) {
1224 assert(op
== nir_intrinsic_deref_atomic_comp_swap
||
1225 op
== nir_intrinsic_deref_atomic_fcomp_swap
);
1226 param
= param
->get_next();
1227 inst
= (ir_instruction
*) param
;
1228 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1232 assert(ir
->return_deref
);
1233 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1234 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1235 nir_builder_instr_insert(&b
, &instr
->instr
);
1238 case nir_intrinsic_atomic_counter_read_deref
:
1239 case nir_intrinsic_atomic_counter_inc_deref
:
1240 case nir_intrinsic_atomic_counter_pre_dec_deref
:
1241 case nir_intrinsic_atomic_counter_add_deref
:
1242 case nir_intrinsic_atomic_counter_min_deref
:
1243 case nir_intrinsic_atomic_counter_max_deref
:
1244 case nir_intrinsic_atomic_counter_and_deref
:
1245 case nir_intrinsic_atomic_counter_or_deref
:
1246 case nir_intrinsic_atomic_counter_xor_deref
:
1247 case nir_intrinsic_atomic_counter_exchange_deref
:
1248 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
1249 /* Set the counter variable dereference. */
1250 exec_node
*param
= ir
->actual_parameters
.get_head();
1251 ir_dereference
*counter
= (ir_dereference
*)param
;
1253 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
1254 param
= param
->get_next();
1256 /* Set the intrinsic destination. */
1257 if (ir
->return_deref
) {
1258 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1261 /* Set the intrinsic parameters. */
1262 if (!param
->is_tail_sentinel()) {
1264 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1265 param
= param
->get_next();
1268 if (!param
->is_tail_sentinel()) {
1270 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1271 param
= param
->get_next();
1274 nir_builder_instr_insert(&b
, &instr
->instr
);
1277 case nir_intrinsic_image_deref_load
:
1278 case nir_intrinsic_image_deref_store
:
1279 case nir_intrinsic_image_deref_atomic_add
:
1280 case nir_intrinsic_image_deref_atomic_imin
:
1281 case nir_intrinsic_image_deref_atomic_umin
:
1282 case nir_intrinsic_image_deref_atomic_imax
:
1283 case nir_intrinsic_image_deref_atomic_umax
:
1284 case nir_intrinsic_image_deref_atomic_and
:
1285 case nir_intrinsic_image_deref_atomic_or
:
1286 case nir_intrinsic_image_deref_atomic_xor
:
1287 case nir_intrinsic_image_deref_atomic_exchange
:
1288 case nir_intrinsic_image_deref_atomic_comp_swap
:
1289 case nir_intrinsic_image_deref_atomic_fadd
:
1290 case nir_intrinsic_image_deref_samples
:
1291 case nir_intrinsic_image_deref_size
:
1292 case nir_intrinsic_image_deref_atomic_inc_wrap
:
1293 case nir_intrinsic_image_deref_atomic_dec_wrap
: {
1294 nir_ssa_undef_instr
*instr_undef
=
1295 nir_ssa_undef_instr_create(shader
, 1, 32);
1296 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
1298 /* Set the image variable dereference. */
1299 exec_node
*param
= ir
->actual_parameters
.get_head();
1300 ir_dereference
*image
= (ir_dereference
*)param
;
1301 nir_deref_instr
*deref
= evaluate_deref(image
);
1302 const glsl_type
*type
= deref
->type
;
1304 nir_intrinsic_set_access(instr
, deref_get_qualifier(deref
));
1306 instr
->src
[0] = nir_src_for_ssa(&deref
->dest
.ssa
);
1307 param
= param
->get_next();
1309 /* Set the intrinsic destination. */
1310 if (ir
->return_deref
) {
1311 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
1312 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1313 num_components
, 32, NULL
);
1316 if (op
== nir_intrinsic_image_deref_size
) {
1317 instr
->num_components
= instr
->dest
.ssa
.num_components
;
1318 } else if (op
== nir_intrinsic_image_deref_load
||
1319 op
== nir_intrinsic_image_deref_store
) {
1320 instr
->num_components
= 4;
1323 if (op
== nir_intrinsic_image_deref_size
||
1324 op
== nir_intrinsic_image_deref_samples
) {
1325 nir_builder_instr_insert(&b
, &instr
->instr
);
1329 /* Set the address argument, extending the coordinate vector to four
1332 nir_ssa_def
*src_addr
=
1333 evaluate_rvalue((ir_dereference
*)param
);
1334 nir_ssa_def
*srcs
[4];
1336 for (int i
= 0; i
< 4; i
++) {
1337 if (i
< type
->coordinate_components())
1338 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1340 srcs
[i
] = &instr_undef
->def
;
1343 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1344 param
= param
->get_next();
1346 /* Set the sample argument, which is undefined for single-sample
1349 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1351 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1352 param
= param
->get_next();
1354 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1357 /* Set the intrinsic parameters. */
1358 if (!param
->is_tail_sentinel()) {
1360 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1361 param
= param
->get_next();
1364 if (!param
->is_tail_sentinel()) {
1366 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1367 param
= param
->get_next();
1369 nir_builder_instr_insert(&b
, &instr
->instr
);
1372 case nir_intrinsic_memory_barrier
:
1373 case nir_intrinsic_group_memory_barrier
:
1374 case nir_intrinsic_memory_barrier_atomic_counter
:
1375 case nir_intrinsic_memory_barrier_buffer
:
1376 case nir_intrinsic_memory_barrier_image
:
1377 case nir_intrinsic_memory_barrier_shared
:
1378 nir_builder_instr_insert(&b
, &instr
->instr
);
1380 case nir_intrinsic_shader_clock
:
1381 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1382 instr
->num_components
= 2;
1383 nir_builder_instr_insert(&b
, &instr
->instr
);
1385 case nir_intrinsic_begin_invocation_interlock
:
1386 nir_builder_instr_insert(&b
, &instr
->instr
);
1388 case nir_intrinsic_end_invocation_interlock
:
1389 nir_builder_instr_insert(&b
, &instr
->instr
);
1391 case nir_intrinsic_store_ssbo
: {
1392 exec_node
*param
= ir
->actual_parameters
.get_head();
1393 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1395 param
= param
->get_next();
1396 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1398 param
= param
->get_next();
1399 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1401 param
= param
->get_next();
1402 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1405 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1406 if (val
->type
->is_boolean())
1407 nir_val
= nir_b2i32(&b
, nir_val
);
1409 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1410 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1411 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1412 intrinsic_set_std430_align(instr
, val
->type
);
1413 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1414 instr
->num_components
= val
->type
->vector_elements
;
1416 nir_builder_instr_insert(&b
, &instr
->instr
);
1419 case nir_intrinsic_load_ssbo
: {
1420 exec_node
*param
= ir
->actual_parameters
.get_head();
1421 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1423 param
= param
->get_next();
1424 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1426 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1427 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1429 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1430 instr
->num_components
= type
->vector_elements
;
1431 intrinsic_set_std430_align(instr
, type
);
1433 /* Setup destination register */
1434 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1435 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1436 type
->vector_elements
, bit_size
, NULL
);
1438 /* Insert the created nir instruction now since in the case of boolean
1439 * result we will need to emit another instruction after it
1441 nir_builder_instr_insert(&b
, &instr
->instr
);
1444 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1445 * consider a true boolean to be ~0. Fix this up with a != 0
1448 if (type
->is_boolean())
1449 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1452 case nir_intrinsic_ssbo_atomic_add
:
1453 case nir_intrinsic_ssbo_atomic_imin
:
1454 case nir_intrinsic_ssbo_atomic_umin
:
1455 case nir_intrinsic_ssbo_atomic_imax
:
1456 case nir_intrinsic_ssbo_atomic_umax
:
1457 case nir_intrinsic_ssbo_atomic_and
:
1458 case nir_intrinsic_ssbo_atomic_or
:
1459 case nir_intrinsic_ssbo_atomic_xor
:
1460 case nir_intrinsic_ssbo_atomic_exchange
:
1461 case nir_intrinsic_ssbo_atomic_comp_swap
:
1462 case nir_intrinsic_ssbo_atomic_fadd
:
1463 case nir_intrinsic_ssbo_atomic_fmin
:
1464 case nir_intrinsic_ssbo_atomic_fmax
:
1465 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1466 int param_count
= ir
->actual_parameters
.length();
1467 assert(param_count
== 3 || param_count
== 4);
1470 exec_node
*param
= ir
->actual_parameters
.get_head();
1471 ir_instruction
*inst
= (ir_instruction
*) param
;
1472 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1475 param
= param
->get_next();
1476 inst
= (ir_instruction
*) param
;
1477 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1479 /* data1 parameter (this is always present) */
1480 param
= param
->get_next();
1481 inst
= (ir_instruction
*) param
;
1482 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1484 /* data2 parameter (only with atomic_comp_swap) */
1485 if (param_count
== 4) {
1486 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1487 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1488 param
= param
->get_next();
1489 inst
= (ir_instruction
*) param
;
1490 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1494 assert(ir
->return_deref
);
1495 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1496 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1497 nir_builder_instr_insert(&b
, &instr
->instr
);
1500 case nir_intrinsic_load_shared
: {
1501 exec_node
*param
= ir
->actual_parameters
.get_head();
1502 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1504 nir_intrinsic_set_base(instr
, 0);
1505 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1507 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1508 instr
->num_components
= type
->vector_elements
;
1509 intrinsic_set_std430_align(instr
, type
);
1511 /* Setup destination register */
1512 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1513 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1514 type
->vector_elements
, bit_size
, NULL
);
1516 nir_builder_instr_insert(&b
, &instr
->instr
);
1518 /* The value in shared memory is a 32-bit value */
1519 if (type
->is_boolean())
1520 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1523 case nir_intrinsic_store_shared
: {
1524 exec_node
*param
= ir
->actual_parameters
.get_head();
1525 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1527 param
= param
->get_next();
1528 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1530 param
= param
->get_next();
1531 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1534 nir_intrinsic_set_base(instr
, 0);
1535 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1537 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1539 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1540 /* The value in shared memory is a 32-bit value */
1541 if (val
->type
->is_boolean())
1542 nir_val
= nir_b2i32(&b
, nir_val
);
1544 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1545 instr
->num_components
= val
->type
->vector_elements
;
1546 intrinsic_set_std430_align(instr
, val
->type
);
1548 nir_builder_instr_insert(&b
, &instr
->instr
);
1551 case nir_intrinsic_shared_atomic_add
:
1552 case nir_intrinsic_shared_atomic_imin
:
1553 case nir_intrinsic_shared_atomic_umin
:
1554 case nir_intrinsic_shared_atomic_imax
:
1555 case nir_intrinsic_shared_atomic_umax
:
1556 case nir_intrinsic_shared_atomic_and
:
1557 case nir_intrinsic_shared_atomic_or
:
1558 case nir_intrinsic_shared_atomic_xor
:
1559 case nir_intrinsic_shared_atomic_exchange
:
1560 case nir_intrinsic_shared_atomic_comp_swap
:
1561 case nir_intrinsic_shared_atomic_fadd
:
1562 case nir_intrinsic_shared_atomic_fmin
:
1563 case nir_intrinsic_shared_atomic_fmax
:
1564 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1565 int param_count
= ir
->actual_parameters
.length();
1566 assert(param_count
== 2 || param_count
== 3);
1569 exec_node
*param
= ir
->actual_parameters
.get_head();
1570 ir_instruction
*inst
= (ir_instruction
*) param
;
1571 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1573 /* data1 parameter (this is always present) */
1574 param
= param
->get_next();
1575 inst
= (ir_instruction
*) param
;
1576 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1578 /* data2 parameter (only with atomic_comp_swap) */
1579 if (param_count
== 3) {
1580 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1581 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1582 param
= param
->get_next();
1583 inst
= (ir_instruction
*) param
;
1585 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1589 assert(ir
->return_deref
);
1590 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1591 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1592 ir
->return_deref
->type
->vector_elements
,
1594 nir_builder_instr_insert(&b
, &instr
->instr
);
1597 case nir_intrinsic_vote_any
:
1598 case nir_intrinsic_vote_all
:
1599 case nir_intrinsic_vote_ieq
: {
1600 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1601 instr
->num_components
= 1;
1603 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1604 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1606 nir_builder_instr_insert(&b
, &instr
->instr
);
1610 case nir_intrinsic_ballot
: {
1611 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1612 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1613 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1615 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1616 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1618 nir_builder_instr_insert(&b
, &instr
->instr
);
1621 case nir_intrinsic_read_invocation
: {
1622 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1623 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1624 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1626 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1627 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1629 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1630 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1632 nir_builder_instr_insert(&b
, &instr
->instr
);
1635 case nir_intrinsic_read_first_invocation
: {
1636 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1637 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1638 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1640 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1641 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1643 nir_builder_instr_insert(&b
, &instr
->instr
);
1646 case nir_intrinsic_is_helper_invocation
: {
1647 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1648 instr
->num_components
= 1;
1649 nir_builder_instr_insert(&b
, &instr
->instr
);
1653 unreachable("not reached");
1656 if (ir
->return_deref
)
1657 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1662 struct hash_entry
*entry
=
1663 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1665 nir_function
*callee
= (nir_function
*) entry
->data
;
1667 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1670 nir_deref_instr
*ret_deref
= NULL
;
1671 if (ir
->return_deref
) {
1672 nir_variable
*ret_tmp
=
1673 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1675 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1676 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1679 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1680 actual_node
, &ir
->actual_parameters
) {
1681 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1682 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1684 if (sig_param
->data
.mode
== ir_var_function_out
) {
1685 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1686 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1687 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1688 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1689 nir_src src
= nir_src_for_ssa(val
);
1691 nir_src_copy(&call
->params
[i
], &src
, call
);
1692 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1693 unreachable("unimplemented: inout parameters");
1699 nir_builder_instr_insert(&b
, &call
->instr
);
1701 if (ir
->return_deref
)
1702 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1706 nir_visitor::visit(ir_assignment
*ir
)
1708 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1710 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1711 ir
->lhs
->variable_referenced()->data
.precise
;
1713 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1714 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1715 nir_deref_instr
*lhs
= evaluate_deref(ir
->lhs
);
1716 nir_deref_instr
*rhs
= evaluate_deref(ir
->rhs
);
1717 enum gl_access_qualifier lhs_qualifiers
= deref_get_qualifier(lhs
);
1718 enum gl_access_qualifier rhs_qualifiers
= deref_get_qualifier(rhs
);
1719 if (ir
->condition
) {
1720 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1721 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1723 nir_pop_if(&b
, NULL
);
1725 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1731 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1733 ir
->lhs
->accept(this);
1734 nir_deref_instr
*lhs_deref
= this->deref
;
1735 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1737 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1738 /* GLSL IR will give us the input to the write-masked assignment in a
1739 * single packed vector. So, for example, if the writemask is xzw, then
1740 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1744 unsigned component
= 0;
1745 for (unsigned i
= 0; i
< 4; i
++) {
1746 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1748 src
= nir_swizzle(&b
, src
, swiz
, num_components
);
1751 enum gl_access_qualifier qualifiers
= deref_get_qualifier(lhs_deref
);
1752 if (ir
->condition
) {
1753 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1754 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1756 nir_pop_if(&b
, NULL
);
1758 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1764 * Given an instruction, returns a pointer to its destination or NULL if there
1765 * is no destination.
1767 * Note that this only handles instructions we generate at this level.
1770 get_instr_dest(nir_instr
*instr
)
1772 nir_alu_instr
*alu_instr
;
1773 nir_intrinsic_instr
*intrinsic_instr
;
1774 nir_tex_instr
*tex_instr
;
1776 switch (instr
->type
) {
1777 case nir_instr_type_alu
:
1778 alu_instr
= nir_instr_as_alu(instr
);
1779 return &alu_instr
->dest
.dest
;
1781 case nir_instr_type_intrinsic
:
1782 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1783 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1784 return &intrinsic_instr
->dest
;
1788 case nir_instr_type_tex
:
1789 tex_instr
= nir_instr_as_tex(instr
);
1790 return &tex_instr
->dest
;
1793 unreachable("not reached");
1800 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1803 nir_dest
*dest
= get_instr_dest(instr
);
1806 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1808 nir_builder_instr_insert(&b
, instr
);
1811 assert(dest
->is_ssa
);
1812 this->result
= &dest
->ssa
;
1817 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1820 if (ir
->as_dereference() || ir
->as_constant()) {
1822 * A dereference is being used on the right hand side, which means we
1823 * must emit a variable load.
1826 enum gl_access_qualifier access
= deref_get_qualifier(this->deref
);
1827 this->result
= nir_load_deref_with_access(&b
, this->deref
, access
);
1830 return this->result
;
1834 type_is_float(glsl_base_type type
)
1836 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1837 type
== GLSL_TYPE_FLOAT16
;
1841 type_is_signed(glsl_base_type type
)
1843 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1844 type
== GLSL_TYPE_INT16
;
1848 nir_visitor::visit(ir_expression
*ir
)
1850 /* Some special cases */
1851 switch (ir
->operation
) {
1852 case ir_binop_ubo_load
: {
1853 nir_intrinsic_instr
*load
=
1854 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1855 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1856 glsl_get_bit_size(ir
->type
);
1857 load
->num_components
= ir
->type
->vector_elements
;
1858 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1859 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1860 intrinsic_set_std430_align(load
, ir
->type
);
1861 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1864 * In UBO's, a true boolean value is any non-zero value, but we consider
1865 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1868 if (ir
->type
->is_boolean())
1869 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1874 case ir_unop_interpolate_at_centroid
:
1875 case ir_binop_interpolate_at_offset
:
1876 case ir_binop_interpolate_at_sample
: {
1877 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1878 ir_swizzle
*swizzle
= NULL
;
1880 /* the api does not allow a swizzle here, but the varying packing code
1881 * may have pushed one into here.
1883 swizzle
= ir
->operands
[0]->as_swizzle();
1885 deref
= swizzle
->val
->as_dereference();
1889 deref
->accept(this);
1891 nir_intrinsic_op op
;
1892 if (this->deref
->mode
== nir_var_shader_in
) {
1893 switch (ir
->operation
) {
1894 case ir_unop_interpolate_at_centroid
:
1895 op
= nir_intrinsic_interp_deref_at_centroid
;
1897 case ir_binop_interpolate_at_offset
:
1898 op
= nir_intrinsic_interp_deref_at_offset
;
1900 case ir_binop_interpolate_at_sample
:
1901 op
= nir_intrinsic_interp_deref_at_sample
;
1904 unreachable("Invalid interpolation intrinsic");
1907 /* This case can happen if the vertex shader does not write the
1908 * given varying. In this case, the linker will lower it to a
1909 * global variable. Since interpolating a variable makes no
1910 * sense, we'll just turn it into a load which will probably
1911 * eventually end up as an SSA definition.
1913 assert(this->deref
->mode
== nir_var_shader_temp
);
1914 op
= nir_intrinsic_load_deref
;
1917 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1918 intrin
->num_components
= deref
->type
->vector_elements
;
1919 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1921 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1922 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1923 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1925 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1926 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1929 unsigned swiz
[4] = {
1930 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1933 result
= nir_swizzle(&b
, result
, swiz
,
1934 swizzle
->type
->vector_elements
);
1940 case ir_unop_ssbo_unsized_array_length
: {
1941 nir_intrinsic_instr
*intrin
=
1942 nir_intrinsic_instr_create(b
.shader
,
1943 nir_intrinsic_deref_buffer_array_length
);
1945 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1946 intrin
->src
[0] = nir_src_for_ssa(&evaluate_deref(deref
)->dest
.ssa
);
1948 add_instr(&intrin
->instr
, 1, 32);
1956 nir_ssa_def
*srcs
[4];
1957 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1958 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1960 glsl_base_type types
[4];
1961 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1962 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1964 glsl_base_type out_type
= ir
->type
->base_type
;
1966 switch (ir
->operation
) {
1967 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1968 case ir_unop_logic_not
:
1969 result
= nir_inot(&b
, srcs
[0]);
1972 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1973 : nir_ineg(&b
, srcs
[0]);
1976 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1977 : nir_iabs(&b
, srcs
[0]);
1979 case ir_unop_saturate
:
1980 assert(type_is_float(types
[0]));
1981 result
= nir_fsat(&b
, srcs
[0]);
1984 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1985 : nir_isign(&b
, srcs
[0]);
1987 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1988 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1989 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1990 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1991 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1992 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1993 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
2029 case ir_unop_i642u64
:
2030 case ir_unop_u642i64
: {
2031 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
2032 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
2033 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
2034 nir_rounding_mode_undef
),
2035 srcs
[0], NULL
, NULL
, NULL
);
2036 /* b2i and b2f don't have fixed bit-size versions so the builder will
2037 * just assume 32 and we have to fix it up here.
2039 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
2043 case ir_unop_bitcast_i2f
:
2044 case ir_unop_bitcast_f2i
:
2045 case ir_unop_bitcast_u2f
:
2046 case ir_unop_bitcast_f2u
:
2047 case ir_unop_bitcast_i642d
:
2048 case ir_unop_bitcast_d2i64
:
2049 case ir_unop_bitcast_u642d
:
2050 case ir_unop_bitcast_d2u64
:
2051 case ir_unop_subroutine_to_int
:
2053 result
= nir_mov(&b
, srcs
[0]);
2055 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
2056 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
2057 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
2058 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
2059 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
2060 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
2061 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
2062 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
2063 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
2064 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
2065 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
2066 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
2067 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
2068 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
2069 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
2070 case ir_unop_pack_snorm_2x16
:
2071 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
2073 case ir_unop_pack_snorm_4x8
:
2074 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
2076 case ir_unop_pack_unorm_2x16
:
2077 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
2079 case ir_unop_pack_unorm_4x8
:
2080 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
2082 case ir_unop_pack_half_2x16
:
2083 result
= nir_pack_half_2x16(&b
, srcs
[0]);
2085 case ir_unop_unpack_snorm_2x16
:
2086 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
2088 case ir_unop_unpack_snorm_4x8
:
2089 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
2091 case ir_unop_unpack_unorm_2x16
:
2092 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
2094 case ir_unop_unpack_unorm_4x8
:
2095 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
2097 case ir_unop_unpack_half_2x16
:
2098 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
2100 case ir_unop_pack_sampler_2x32
:
2101 case ir_unop_pack_image_2x32
:
2102 case ir_unop_pack_double_2x32
:
2103 case ir_unop_pack_int_2x32
:
2104 case ir_unop_pack_uint_2x32
:
2105 result
= nir_pack_64_2x32(&b
, srcs
[0]);
2107 case ir_unop_unpack_sampler_2x32
:
2108 case ir_unop_unpack_image_2x32
:
2109 case ir_unop_unpack_double_2x32
:
2110 case ir_unop_unpack_int_2x32
:
2111 case ir_unop_unpack_uint_2x32
:
2112 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
2114 case ir_unop_bitfield_reverse
:
2115 result
= nir_bitfield_reverse(&b
, srcs
[0]);
2117 case ir_unop_bit_count
:
2118 result
= nir_bit_count(&b
, srcs
[0]);
2120 case ir_unop_find_msb
:
2122 case GLSL_TYPE_UINT
:
2123 result
= nir_ufind_msb(&b
, srcs
[0]);
2126 result
= nir_ifind_msb(&b
, srcs
[0]);
2129 unreachable("Invalid type for findMSB()");
2132 case ir_unop_find_lsb
:
2133 result
= nir_find_lsb(&b
, srcs
[0]);
2137 switch (ir
->type
->vector_elements
) {
2139 switch (ir
->operands
[0]->type
->vector_elements
) {
2140 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
2141 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
2142 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
2143 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
2144 default: unreachable("not reached");
2148 switch (ir
->operands
[0]->type
->vector_elements
) {
2149 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
2150 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
2151 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
2152 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
2153 default: unreachable("not reached");
2157 switch (ir
->operands
[0]->type
->vector_elements
) {
2158 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
2159 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
2160 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
2161 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
2162 default: unreachable("not reached");
2166 switch (ir
->operands
[0]->type
->vector_elements
) {
2167 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
2168 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
2169 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
2170 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
2171 default: unreachable("not reached");
2175 unreachable("not reached");
2178 case ir_unop_get_buffer_size
: {
2179 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
2181 nir_intrinsic_get_buffer_size
);
2182 load
->num_components
= ir
->type
->vector_elements
;
2183 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
2184 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2185 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
2190 result
= nir_atan(&b
, srcs
[0]);
2194 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
2195 : nir_iadd(&b
, srcs
[0], srcs
[1]);
2198 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
2199 : nir_isub(&b
, srcs
[0], srcs
[1]);
2202 if (type_is_float(out_type
))
2203 result
= nir_fmul(&b
, srcs
[0], srcs
[1]);
2204 else if (out_type
== GLSL_TYPE_INT64
&&
2205 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
||
2206 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
))
2207 result
= nir_imul_2x32_64(&b
, srcs
[0], srcs
[1]);
2208 else if (out_type
== GLSL_TYPE_UINT64
&&
2209 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
||
2210 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_UINT
))
2211 result
= nir_umul_2x32_64(&b
, srcs
[0], srcs
[1]);
2213 result
= nir_imul(&b
, srcs
[0], srcs
[1]);
2216 if (type_is_float(out_type
))
2217 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
2218 else if (type_is_signed(out_type
))
2219 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
2221 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
2224 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
2225 : nir_umod(&b
, srcs
[0], srcs
[1]);
2228 if (type_is_float(out_type
))
2229 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
2230 else if (type_is_signed(out_type
))
2231 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
2233 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
2236 if (type_is_float(out_type
))
2237 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
2238 else if (type_is_signed(out_type
))
2239 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
2241 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
2243 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
2244 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
2245 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
2246 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
2247 case ir_binop_logic_and
:
2248 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
2250 case ir_binop_logic_or
:
2251 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
2253 case ir_binop_logic_xor
:
2254 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
2256 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
2257 case ir_binop_rshift
:
2258 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
2259 : nir_ushr(&b
, srcs
[0], srcs
[1]);
2261 case ir_binop_imul_high
:
2262 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
2263 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
2265 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
2266 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
2268 if (type_is_float(types
[0]))
2269 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
2270 else if (type_is_signed(types
[0]))
2271 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
2273 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
2275 case ir_binop_gequal
:
2276 if (type_is_float(types
[0]))
2277 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
2278 else if (type_is_signed(types
[0]))
2279 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
2281 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
2283 case ir_binop_equal
:
2284 if (type_is_float(types
[0]))
2285 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
2287 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
2289 case ir_binop_nequal
:
2290 if (type_is_float(types
[0]))
2291 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
2293 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
2295 case ir_binop_all_equal
:
2296 if (type_is_float(types
[0])) {
2297 switch (ir
->operands
[0]->type
->vector_elements
) {
2298 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
2299 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
2300 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
2301 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
2303 unreachable("not reached");
2306 switch (ir
->operands
[0]->type
->vector_elements
) {
2307 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
2308 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
2309 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
2310 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
2312 unreachable("not reached");
2316 case ir_binop_any_nequal
:
2317 if (type_is_float(types
[0])) {
2318 switch (ir
->operands
[0]->type
->vector_elements
) {
2319 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
2320 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
2321 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
2322 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
2324 unreachable("not reached");
2327 switch (ir
->operands
[0]->type
->vector_elements
) {
2328 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
2329 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
2330 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
2331 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
2333 unreachable("not reached");
2338 switch (ir
->operands
[0]->type
->vector_elements
) {
2339 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2340 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2341 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2343 unreachable("not reached");
2346 case ir_binop_vector_extract
: {
2347 result
= nir_channel(&b
, srcs
[0], 0);
2348 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2349 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2350 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2356 case ir_binop_atan2
:
2357 result
= nir_atan2(&b
, srcs
[0], srcs
[1]);
2360 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2362 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2365 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2368 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2370 case ir_triop_bitfield_extract
:
2371 result
= (out_type
== GLSL_TYPE_INT
) ?
2372 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2373 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2375 case ir_quadop_bitfield_insert
:
2376 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2378 case ir_quadop_vector
:
2379 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2383 unreachable("not reached");
2388 nir_visitor::visit(ir_swizzle
*ir
)
2390 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2391 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2392 ir
->type
->vector_elements
);
2396 nir_visitor::visit(ir_texture
*ir
)
2403 num_srcs
= 1; /* coordinate */
2408 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2409 num_srcs
= 2; /* coordinate, bias/lod */
2413 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2419 if (ir
->lod_info
.lod
!= NULL
)
2420 num_srcs
= 2; /* coordinate, lod */
2422 num_srcs
= 1; /* coordinate */
2426 op
= nir_texop_txf_ms
;
2427 num_srcs
= 2; /* coordinate, sample_index */
2432 if (ir
->lod_info
.lod
!= NULL
)
2433 num_srcs
= 1; /* lod */
2440 num_srcs
= 1; /* coordinate */
2445 num_srcs
= 1; /* coordinate */
2448 case ir_query_levels
:
2449 op
= nir_texop_query_levels
;
2453 case ir_texture_samples
:
2454 op
= nir_texop_texture_samples
;
2458 case ir_samples_identical
:
2459 op
= nir_texop_samples_identical
;
2460 num_srcs
= 1; /* coordinate */
2464 unreachable("not reached");
2467 if (ir
->projector
!= NULL
)
2469 if (ir
->shadow_comparator
!= NULL
)
2471 /* offsets are constants we store inside nir_tex_intrs.offsets */
2472 if (ir
->offset
!= NULL
&& !ir
->offset
->type
->is_array())
2475 /* Add one for the texture deref */
2478 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2481 instr
->sampler_dim
=
2482 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2483 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2484 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2485 if (instr
->is_shadow
)
2486 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2487 switch (ir
->type
->base_type
) {
2488 case GLSL_TYPE_FLOAT
:
2489 instr
->dest_type
= nir_type_float
;
2492 instr
->dest_type
= nir_type_int
;
2494 case GLSL_TYPE_BOOL
:
2495 case GLSL_TYPE_UINT
:
2496 instr
->dest_type
= nir_type_uint
;
2499 unreachable("not reached");
2502 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2504 /* check for bindless handles */
2505 if (sampler_deref
->mode
!= nir_var_uniform
||
2506 nir_deref_instr_get_variable(sampler_deref
)->data
.bindless
) {
2507 nir_ssa_def
*load
= nir_load_deref(&b
, sampler_deref
);
2508 instr
->src
[0].src
= nir_src_for_ssa(load
);
2509 instr
->src
[0].src_type
= nir_tex_src_texture_handle
;
2510 instr
->src
[1].src
= nir_src_for_ssa(load
);
2511 instr
->src
[1].src_type
= nir_tex_src_sampler_handle
;
2513 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2514 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2515 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2516 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2519 unsigned src_number
= 2;
2521 if (ir
->coordinate
!= NULL
) {
2522 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2523 instr
->src
[src_number
].src
=
2524 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2525 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2529 if (ir
->projector
!= NULL
) {
2530 instr
->src
[src_number
].src
=
2531 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2532 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2536 if (ir
->shadow_comparator
!= NULL
) {
2537 instr
->src
[src_number
].src
=
2538 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2539 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2543 if (ir
->offset
!= NULL
) {
2544 if (ir
->offset
->type
->is_array()) {
2545 for (int i
= 0; i
< ir
->offset
->type
->array_size(); i
++) {
2546 const ir_constant
*c
=
2547 ir
->offset
->as_constant()->get_array_element(i
);
2549 for (unsigned j
= 0; j
< 2; ++j
) {
2550 int val
= c
->get_int_component(j
);
2551 assert(val
<= 31 && val
>= -32);
2552 instr
->tg4_offsets
[i
][j
] = val
;
2556 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2558 instr
->src
[src_number
].src
=
2559 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2560 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2567 instr
->src
[src_number
].src
=
2568 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2569 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2576 if (ir
->lod_info
.lod
!= NULL
) {
2577 instr
->src
[src_number
].src
=
2578 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2579 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2585 instr
->src
[src_number
].src
=
2586 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2587 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2589 instr
->src
[src_number
].src
=
2590 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2591 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2596 instr
->src
[src_number
].src
=
2597 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2598 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2603 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2610 assert(src_number
== num_srcs
);
2612 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2613 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2617 nir_visitor::visit(ir_constant
*ir
)
2620 * We don't know if this variable is an array or struct that gets
2621 * dereferenced, so do the safe thing an make it a variable with a
2622 * constant initializer and return a dereference.
2626 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2627 var
->data
.read_only
= true;
2628 var
->constant_initializer
= constant_copy(ir
, var
);
2630 this->deref
= nir_build_deref_var(&b
, var
);
2634 nir_visitor::visit(ir_dereference_variable
*ir
)
2636 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2637 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2639 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2640 if (param
== ir
->variable_referenced()) {
2646 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2647 nir_var_function_temp
, ir
->type
, 0);
2651 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2653 struct hash_entry
*entry
=
2654 _mesa_hash_table_search(this->var_table
, ir
->var
);
2656 nir_variable
*var
= (nir_variable
*) entry
->data
;
2658 this->deref
= nir_build_deref_var(&b
, var
);
2662 nir_visitor::visit(ir_dereference_record
*ir
)
2664 ir
->record
->accept(this);
2666 int field_index
= ir
->field_idx
;
2667 assert(field_index
>= 0);
2669 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2673 nir_visitor::visit(ir_dereference_array
*ir
)
2675 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2677 ir
->array
->accept(this);
2679 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2683 nir_visitor::visit(ir_barrier
*)
2685 nir_intrinsic_instr
*instr
=
2686 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2687 nir_builder_instr_insert(&b
, &instr
->instr
);
2691 glsl_float64_funcs_to_nir(struct gl_context
*ctx
,
2692 const nir_shader_compiler_options
*options
)
2694 /* We pretend it's a vertex shader. Ultimately, the stage shouldn't
2695 * matter because we're not optimizing anything here.
2697 struct gl_shader
*sh
= _mesa_new_shader(-1, MESA_SHADER_VERTEX
);
2698 sh
->Source
= float64_source
;
2699 sh
->CompileStatus
= COMPILE_FAILURE
;
2700 _mesa_glsl_compile_shader(ctx
, sh
, false, false, true);
2702 if (!sh
->CompileStatus
) {
2705 "fp64 software impl compile failed:\n%s\nsource:\n%s\n",
2706 sh
->InfoLog
, float64_source
);
2711 nir_shader
*nir
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, options
, NULL
);
2713 nir_visitor
v1(ctx
, nir
);
2714 nir_function_visitor
v2(&v1
);
2716 visit_exec_list(sh
->ir
, &v1
);
2718 /* _mesa_delete_shader will try to free sh->Source but it's static const */
2720 _mesa_delete_shader(ctx
, sh
);
2722 nir_validate_shader(nir
, "float64_funcs_to_nir");
2724 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
2725 NIR_PASS_V(nir
, nir_lower_returns
);
2726 NIR_PASS_V(nir
, nir_inline_functions
);
2727 NIR_PASS_V(nir
, nir_opt_deref
);
2729 /* Do some optimizations to clean up the shader now. By optimizing the
2730 * functions in the library, we avoid having to re-do that work every
2731 * time we inline a copy of a function. Reducing basic blocks also helps
2732 * with compile times.
2734 NIR_PASS_V(nir
, nir_lower_vars_to_ssa
);
2735 NIR_PASS_V(nir
, nir_copy_prop
);
2736 NIR_PASS_V(nir
, nir_opt_dce
);
2737 NIR_PASS_V(nir
, nir_opt_cse
);
2738 NIR_PASS_V(nir
, nir_opt_gcm
, true);
2739 NIR_PASS_V(nir
, nir_opt_peephole_select
, 1, false, false);
2740 NIR_PASS_V(nir
, nir_opt_dce
);