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 get_nir_how_declared(unsigned how_declared
)
416 if (how_declared
== ir_var_hidden
)
417 return nir_var_hidden
;
419 return nir_var_declared_normally
;
423 nir_visitor::visit(ir_variable
*ir
)
425 /* TODO: In future we should switch to using the NIR lowering pass but for
426 * now just ignore these variables as GLSL IR should have lowered them.
427 * Anything remaining are just dead vars that weren't cleaned up.
429 if (ir
->data
.mode
== ir_var_shader_shared
)
432 /* FINISHME: inout parameters */
433 assert(ir
->data
.mode
!= ir_var_function_inout
);
435 if (ir
->data
.mode
== ir_var_function_out
)
438 nir_variable
*var
= rzalloc(shader
, nir_variable
);
439 var
->type
= ir
->type
;
440 var
->name
= ralloc_strdup(var
, ir
->name
);
442 var
->data
.always_active_io
= ir
->data
.always_active_io
;
443 var
->data
.read_only
= ir
->data
.read_only
;
444 var
->data
.centroid
= ir
->data
.centroid
;
445 var
->data
.sample
= ir
->data
.sample
;
446 var
->data
.patch
= ir
->data
.patch
;
447 var
->data
.how_declared
= get_nir_how_declared(ir
->data
.how_declared
);
448 var
->data
.invariant
= ir
->data
.invariant
;
449 var
->data
.location
= ir
->data
.location
;
450 var
->data
.stream
= ir
->data
.stream
;
451 if (ir
->data
.stream
& (1u << 31))
452 var
->data
.stream
|= NIR_STREAM_PACKED
;
454 var
->data
.precision
= ir
->data
.precision
;
455 var
->data
.explicit_location
= ir
->data
.explicit_location
;
456 var
->data
.from_named_ifc_block
= ir
->data
.from_named_ifc_block
;
457 var
->data
.compact
= false;
459 switch(ir
->data
.mode
) {
461 case ir_var_temporary
:
463 var
->data
.mode
= nir_var_shader_temp
;
465 var
->data
.mode
= nir_var_function_temp
;
468 case ir_var_function_in
:
469 case ir_var_const_in
:
470 var
->data
.mode
= nir_var_function_temp
;
473 case ir_var_shader_in
:
474 if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
475 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
476 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
477 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
478 var
->data
.mode
= nir_var_system_value
;
480 var
->data
.mode
= nir_var_shader_in
;
482 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
483 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
484 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
485 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
488 if (shader
->info
.stage
> MESA_SHADER_VERTEX
&&
489 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
490 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
491 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
496 case ir_var_shader_out
:
497 var
->data
.mode
= nir_var_shader_out
;
498 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
499 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
500 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
501 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
504 if (shader
->info
.stage
<= MESA_SHADER_GEOMETRY
&&
505 ir
->data
.location
>= VARYING_SLOT_CLIP_DIST0
&&
506 ir
->data
.location
<= VARYING_SLOT_CULL_DIST1
) {
507 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
512 if (ir
->get_interface_type())
513 var
->data
.mode
= nir_var_mem_ubo
;
515 var
->data
.mode
= nir_var_uniform
;
518 case ir_var_shader_storage
:
519 var
->data
.mode
= nir_var_mem_ssbo
;
522 case ir_var_system_value
:
523 var
->data
.mode
= nir_var_system_value
;
527 unreachable("not reached");
530 unsigned mem_access
= 0;
531 if (ir
->data
.memory_read_only
)
532 mem_access
|= ACCESS_NON_WRITEABLE
;
533 if (ir
->data
.memory_write_only
)
534 mem_access
|= ACCESS_NON_READABLE
;
535 if (ir
->data
.memory_coherent
)
536 mem_access
|= ACCESS_COHERENT
;
537 if (ir
->data
.memory_volatile
)
538 mem_access
|= ACCESS_VOLATILE
;
539 if (ir
->data
.memory_restrict
)
540 mem_access
|= ACCESS_RESTRICT
;
542 /* For UBO and SSBO variables, we need explicit types */
543 if (var
->data
.mode
& (nir_var_mem_ubo
| nir_var_mem_ssbo
)) {
544 const glsl_type
*explicit_ifc_type
=
545 ir
->get_interface_type()->get_explicit_interface_type(supports_std430
);
547 if (ir
->type
->without_array()->is_interface()) {
548 /* If the type contains the interface, wrap the explicit type in the
549 * right number of arrays.
551 var
->type
= wrap_type_in_array(explicit_ifc_type
, ir
->type
);
553 /* Otherwise, this variable is one entry in the interface */
554 UNUSED
bool found
= false;
555 for (unsigned i
= 0; i
< explicit_ifc_type
->length
; i
++) {
556 const glsl_struct_field
*field
=
557 &explicit_ifc_type
->fields
.structure
[i
];
558 if (strcmp(ir
->name
, field
->name
) != 0)
561 var
->type
= field
->type
;
562 if (field
->memory_read_only
)
563 mem_access
|= ACCESS_NON_WRITEABLE
;
564 if (field
->memory_write_only
)
565 mem_access
|= ACCESS_NON_READABLE
;
566 if (field
->memory_coherent
)
567 mem_access
|= ACCESS_COHERENT
;
568 if (field
->memory_volatile
)
569 mem_access
|= ACCESS_VOLATILE
;
570 if (field
->memory_restrict
)
571 mem_access
|= ACCESS_RESTRICT
;
580 var
->data
.interpolation
= ir
->data
.interpolation
;
581 var
->data
.location_frac
= ir
->data
.location_frac
;
583 switch (ir
->data
.depth_layout
) {
584 case ir_depth_layout_none
:
585 var
->data
.depth_layout
= nir_depth_layout_none
;
587 case ir_depth_layout_any
:
588 var
->data
.depth_layout
= nir_depth_layout_any
;
590 case ir_depth_layout_greater
:
591 var
->data
.depth_layout
= nir_depth_layout_greater
;
593 case ir_depth_layout_less
:
594 var
->data
.depth_layout
= nir_depth_layout_less
;
596 case ir_depth_layout_unchanged
:
597 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
600 unreachable("not reached");
603 var
->data
.index
= ir
->data
.index
;
604 var
->data
.descriptor_set
= 0;
605 var
->data
.binding
= ir
->data
.binding
;
606 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
607 var
->data
.bindless
= ir
->data
.bindless
;
608 var
->data
.offset
= ir
->data
.offset
;
609 var
->data
.access
= (gl_access_qualifier
)mem_access
;
611 if (var
->type
->without_array()->is_image()) {
612 var
->data
.image
.format
= ir
->data
.image_format
;
613 } else if (var
->data
.mode
== nir_var_shader_out
) {
614 var
->data
.xfb
.buffer
= ir
->data
.xfb_buffer
;
615 var
->data
.xfb
.stride
= ir
->data
.xfb_stride
;
618 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
619 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
620 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
622 var
->num_state_slots
= ir
->get_num_state_slots();
623 if (var
->num_state_slots
> 0) {
624 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
625 var
->num_state_slots
);
627 ir_state_slot
*state_slots
= ir
->get_state_slots();
628 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
629 for (unsigned j
= 0; j
< 5; j
++)
630 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
631 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
634 var
->state_slots
= NULL
;
637 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
639 var
->interface_type
= ir
->get_interface_type();
641 if (var
->data
.mode
== nir_var_function_temp
)
642 nir_function_impl_add_variable(impl
, var
);
644 nir_shader_add_variable(shader
, var
);
646 _mesa_hash_table_insert(var_table
, ir
, var
);
650 nir_function_visitor::visit_enter(ir_function
*ir
)
652 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
653 visitor
->create_function(sig
);
655 return visit_continue_with_parent
;
659 nir_visitor::create_function(ir_function_signature
*ir
)
661 if (ir
->is_intrinsic())
664 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
665 if (strcmp(ir
->function_name(), "main") == 0)
666 func
->is_entrypoint
= true;
668 func
->num_params
= ir
->parameters
.length() +
669 (ir
->return_type
!= glsl_type::void_type
);
670 func
->params
= ralloc_array(shader
, nir_parameter
, func
->num_params
);
674 if (ir
->return_type
!= glsl_type::void_type
) {
675 /* The return value is a variable deref (basically an out parameter) */
676 func
->params
[np
].num_components
= 1;
677 func
->params
[np
].bit_size
= 32;
681 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
682 /* FINISHME: pass arrays, structs, etc by reference? */
683 assert(param
->type
->is_vector() || param
->type
->is_scalar());
685 if (param
->data
.mode
== ir_var_function_in
) {
686 func
->params
[np
].num_components
= param
->type
->vector_elements
;
687 func
->params
[np
].bit_size
= glsl_get_bit_size(param
->type
);
689 func
->params
[np
].num_components
= 1;
690 func
->params
[np
].bit_size
= 32;
694 assert(np
== func
->num_params
);
696 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
700 nir_visitor::visit(ir_function
*ir
)
702 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
707 nir_visitor::visit(ir_function_signature
*ir
)
709 if (ir
->is_intrinsic())
714 struct hash_entry
*entry
=
715 _mesa_hash_table_search(this->overload_table
, ir
);
718 nir_function
*func
= (nir_function
*) entry
->data
;
720 if (ir
->is_defined
) {
721 nir_function_impl
*impl
= nir_function_impl_create(func
);
724 this->is_global
= false;
726 nir_builder_init(&b
, impl
);
727 b
.cursor
= nir_after_cf_list(&impl
->body
);
729 unsigned i
= (ir
->return_type
!= glsl_type::void_type
) ? 1 : 0;
731 foreach_in_list(ir_variable
, param
, &ir
->parameters
) {
733 nir_local_variable_create(impl
, param
->type
, param
->name
);
735 if (param
->data
.mode
== ir_var_function_in
) {
736 nir_store_var(&b
, var
, nir_load_param(&b
, i
), ~0);
739 _mesa_hash_table_insert(var_table
, param
, var
);
743 visit_exec_list(&ir
->body
, this);
745 this->is_global
= true;
752 nir_visitor::visit(ir_loop
*ir
)
755 visit_exec_list(&ir
->body_instructions
, this);
756 nir_pop_loop(&b
, NULL
);
760 nir_visitor::visit(ir_if
*ir
)
762 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
763 visit_exec_list(&ir
->then_instructions
, this);
764 nir_push_else(&b
, NULL
);
765 visit_exec_list(&ir
->else_instructions
, this);
766 nir_pop_if(&b
, NULL
);
770 nir_visitor::visit(ir_discard
*ir
)
773 * discards aren't treated as control flow, because before we lower them
774 * they can appear anywhere in the shader and the stuff after them may still
775 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
776 * discards will be immediately followed by a return.
779 nir_intrinsic_instr
*discard
;
781 discard
= nir_intrinsic_instr_create(this->shader
,
782 nir_intrinsic_discard_if
);
784 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
786 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
789 nir_builder_instr_insert(&b
, &discard
->instr
);
793 nir_visitor::visit(ir_demote
*ir
)
795 nir_intrinsic_instr
*demote
=
796 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_demote
);
798 nir_builder_instr_insert(&b
, &demote
->instr
);
802 nir_visitor::visit(ir_emit_vertex
*ir
)
804 nir_intrinsic_instr
*instr
=
805 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
806 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
807 nir_builder_instr_insert(&b
, &instr
->instr
);
811 nir_visitor::visit(ir_end_primitive
*ir
)
813 nir_intrinsic_instr
*instr
=
814 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
815 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
816 nir_builder_instr_insert(&b
, &instr
->instr
);
820 nir_visitor::visit(ir_loop_jump
*ir
)
824 case ir_loop_jump::jump_break
:
825 type
= nir_jump_break
;
827 case ir_loop_jump::jump_continue
:
828 type
= nir_jump_continue
;
831 unreachable("not reached");
834 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
835 nir_builder_instr_insert(&b
, &instr
->instr
);
839 nir_visitor::visit(ir_return
*ir
)
841 if (ir
->value
!= NULL
) {
842 nir_deref_instr
*ret_deref
=
843 nir_build_deref_cast(&b
, nir_load_param(&b
, 0),
844 nir_var_function_temp
, ir
->value
->type
, 0);
846 nir_ssa_def
*val
= evaluate_rvalue(ir
->value
);
847 nir_store_deref(&b
, ret_deref
, val
, ~0);
850 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
851 nir_builder_instr_insert(&b
, &instr
->instr
);
855 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
857 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
858 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
859 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
862 /* Accumulate any qualifiers along the deref chain to get the actual
863 * load/store qualifier.
866 static enum gl_access_qualifier
867 deref_get_qualifier(nir_deref_instr
*deref
)
870 nir_deref_path_init(&path
, deref
, NULL
);
872 unsigned qualifiers
= path
.path
[0]->var
->data
.access
;
874 const glsl_type
*parent_type
= path
.path
[0]->type
;
875 for (nir_deref_instr
**cur_ptr
= &path
.path
[1]; *cur_ptr
; cur_ptr
++) {
876 nir_deref_instr
*cur
= *cur_ptr
;
878 if (parent_type
->is_interface()) {
879 const struct glsl_struct_field
*field
=
880 &parent_type
->fields
.structure
[cur
->strct
.index
];
881 if (field
->memory_read_only
)
882 qualifiers
|= ACCESS_NON_WRITEABLE
;
883 if (field
->memory_write_only
)
884 qualifiers
|= ACCESS_NON_READABLE
;
885 if (field
->memory_coherent
)
886 qualifiers
|= ACCESS_COHERENT
;
887 if (field
->memory_volatile
)
888 qualifiers
|= ACCESS_VOLATILE
;
889 if (field
->memory_restrict
)
890 qualifiers
|= ACCESS_RESTRICT
;
893 parent_type
= cur
->type
;
896 nir_deref_path_finish(&path
);
898 return (gl_access_qualifier
) qualifiers
;
902 nir_visitor::visit(ir_call
*ir
)
904 if (ir
->callee
->is_intrinsic()) {
907 switch (ir
->callee
->intrinsic_id
) {
908 case ir_intrinsic_generic_atomic_add
:
909 op
= ir
->return_deref
->type
->is_integer_32_64()
910 ? nir_intrinsic_deref_atomic_add
: nir_intrinsic_deref_atomic_fadd
;
912 case ir_intrinsic_generic_atomic_and
:
913 op
= nir_intrinsic_deref_atomic_and
;
915 case ir_intrinsic_generic_atomic_or
:
916 op
= nir_intrinsic_deref_atomic_or
;
918 case ir_intrinsic_generic_atomic_xor
:
919 op
= nir_intrinsic_deref_atomic_xor
;
921 case ir_intrinsic_generic_atomic_min
:
922 assert(ir
->return_deref
);
923 if (ir
->return_deref
->type
== glsl_type::int_type
)
924 op
= nir_intrinsic_deref_atomic_imin
;
925 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
926 op
= nir_intrinsic_deref_atomic_umin
;
927 else if (ir
->return_deref
->type
== glsl_type::float_type
)
928 op
= nir_intrinsic_deref_atomic_fmin
;
930 unreachable("Invalid type");
932 case ir_intrinsic_generic_atomic_max
:
933 assert(ir
->return_deref
);
934 if (ir
->return_deref
->type
== glsl_type::int_type
)
935 op
= nir_intrinsic_deref_atomic_imax
;
936 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
937 op
= nir_intrinsic_deref_atomic_umax
;
938 else if (ir
->return_deref
->type
== glsl_type::float_type
)
939 op
= nir_intrinsic_deref_atomic_fmax
;
941 unreachable("Invalid type");
943 case ir_intrinsic_generic_atomic_exchange
:
944 op
= nir_intrinsic_deref_atomic_exchange
;
946 case ir_intrinsic_generic_atomic_comp_swap
:
947 op
= ir
->return_deref
->type
->is_integer_32_64()
948 ? nir_intrinsic_deref_atomic_comp_swap
949 : nir_intrinsic_deref_atomic_fcomp_swap
;
951 case ir_intrinsic_atomic_counter_read
:
952 op
= nir_intrinsic_atomic_counter_read_deref
;
954 case ir_intrinsic_atomic_counter_increment
:
955 op
= nir_intrinsic_atomic_counter_inc_deref
;
957 case ir_intrinsic_atomic_counter_predecrement
:
958 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
960 case ir_intrinsic_atomic_counter_add
:
961 op
= nir_intrinsic_atomic_counter_add_deref
;
963 case ir_intrinsic_atomic_counter_and
:
964 op
= nir_intrinsic_atomic_counter_and_deref
;
966 case ir_intrinsic_atomic_counter_or
:
967 op
= nir_intrinsic_atomic_counter_or_deref
;
969 case ir_intrinsic_atomic_counter_xor
:
970 op
= nir_intrinsic_atomic_counter_xor_deref
;
972 case ir_intrinsic_atomic_counter_min
:
973 op
= nir_intrinsic_atomic_counter_min_deref
;
975 case ir_intrinsic_atomic_counter_max
:
976 op
= nir_intrinsic_atomic_counter_max_deref
;
978 case ir_intrinsic_atomic_counter_exchange
:
979 op
= nir_intrinsic_atomic_counter_exchange_deref
;
981 case ir_intrinsic_atomic_counter_comp_swap
:
982 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
984 case ir_intrinsic_image_load
:
985 op
= nir_intrinsic_image_deref_load
;
987 case ir_intrinsic_image_store
:
988 op
= nir_intrinsic_image_deref_store
;
990 case ir_intrinsic_image_atomic_add
:
991 op
= ir
->return_deref
->type
->is_integer_32_64()
992 ? nir_intrinsic_image_deref_atomic_add
993 : nir_intrinsic_image_deref_atomic_fadd
;
995 case ir_intrinsic_image_atomic_min
:
996 if (ir
->return_deref
->type
== glsl_type::int_type
)
997 op
= nir_intrinsic_image_deref_atomic_imin
;
998 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
999 op
= nir_intrinsic_image_deref_atomic_umin
;
1001 unreachable("Invalid type");
1003 case ir_intrinsic_image_atomic_max
:
1004 if (ir
->return_deref
->type
== glsl_type::int_type
)
1005 op
= nir_intrinsic_image_deref_atomic_imax
;
1006 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1007 op
= nir_intrinsic_image_deref_atomic_umax
;
1009 unreachable("Invalid type");
1011 case ir_intrinsic_image_atomic_and
:
1012 op
= nir_intrinsic_image_deref_atomic_and
;
1014 case ir_intrinsic_image_atomic_or
:
1015 op
= nir_intrinsic_image_deref_atomic_or
;
1017 case ir_intrinsic_image_atomic_xor
:
1018 op
= nir_intrinsic_image_deref_atomic_xor
;
1020 case ir_intrinsic_image_atomic_exchange
:
1021 op
= nir_intrinsic_image_deref_atomic_exchange
;
1023 case ir_intrinsic_image_atomic_comp_swap
:
1024 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
1026 case ir_intrinsic_image_atomic_inc_wrap
:
1027 op
= nir_intrinsic_image_deref_atomic_inc_wrap
;
1029 case ir_intrinsic_image_atomic_dec_wrap
:
1030 op
= nir_intrinsic_image_deref_atomic_dec_wrap
;
1032 case ir_intrinsic_memory_barrier
:
1033 op
= nir_intrinsic_memory_barrier
;
1035 case ir_intrinsic_image_size
:
1036 op
= nir_intrinsic_image_deref_size
;
1038 case ir_intrinsic_image_samples
:
1039 op
= nir_intrinsic_image_deref_samples
;
1041 case ir_intrinsic_ssbo_store
:
1042 op
= nir_intrinsic_store_ssbo
;
1044 case ir_intrinsic_ssbo_load
:
1045 op
= nir_intrinsic_load_ssbo
;
1047 case ir_intrinsic_ssbo_atomic_add
:
1048 op
= ir
->return_deref
->type
->is_integer_32_64()
1049 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
1051 case ir_intrinsic_ssbo_atomic_and
:
1052 op
= nir_intrinsic_ssbo_atomic_and
;
1054 case ir_intrinsic_ssbo_atomic_or
:
1055 op
= nir_intrinsic_ssbo_atomic_or
;
1057 case ir_intrinsic_ssbo_atomic_xor
:
1058 op
= nir_intrinsic_ssbo_atomic_xor
;
1060 case ir_intrinsic_ssbo_atomic_min
:
1061 assert(ir
->return_deref
);
1062 if (ir
->return_deref
->type
== glsl_type::int_type
)
1063 op
= nir_intrinsic_ssbo_atomic_imin
;
1064 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1065 op
= nir_intrinsic_ssbo_atomic_umin
;
1066 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1067 op
= nir_intrinsic_ssbo_atomic_fmin
;
1069 unreachable("Invalid type");
1071 case ir_intrinsic_ssbo_atomic_max
:
1072 assert(ir
->return_deref
);
1073 if (ir
->return_deref
->type
== glsl_type::int_type
)
1074 op
= nir_intrinsic_ssbo_atomic_imax
;
1075 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1076 op
= nir_intrinsic_ssbo_atomic_umax
;
1077 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1078 op
= nir_intrinsic_ssbo_atomic_fmax
;
1080 unreachable("Invalid type");
1082 case ir_intrinsic_ssbo_atomic_exchange
:
1083 op
= nir_intrinsic_ssbo_atomic_exchange
;
1085 case ir_intrinsic_ssbo_atomic_comp_swap
:
1086 op
= ir
->return_deref
->type
->is_integer_32_64()
1087 ? nir_intrinsic_ssbo_atomic_comp_swap
1088 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
1090 case ir_intrinsic_shader_clock
:
1091 op
= nir_intrinsic_shader_clock
;
1093 case ir_intrinsic_begin_invocation_interlock
:
1094 op
= nir_intrinsic_begin_invocation_interlock
;
1096 case ir_intrinsic_end_invocation_interlock
:
1097 op
= nir_intrinsic_end_invocation_interlock
;
1099 case ir_intrinsic_group_memory_barrier
:
1100 op
= nir_intrinsic_group_memory_barrier
;
1102 case ir_intrinsic_memory_barrier_atomic_counter
:
1103 op
= nir_intrinsic_memory_barrier_atomic_counter
;
1105 case ir_intrinsic_memory_barrier_buffer
:
1106 op
= nir_intrinsic_memory_barrier_buffer
;
1108 case ir_intrinsic_memory_barrier_image
:
1109 op
= nir_intrinsic_memory_barrier_image
;
1111 case ir_intrinsic_memory_barrier_shared
:
1112 op
= nir_intrinsic_memory_barrier_shared
;
1114 case ir_intrinsic_shared_load
:
1115 op
= nir_intrinsic_load_shared
;
1117 case ir_intrinsic_shared_store
:
1118 op
= nir_intrinsic_store_shared
;
1120 case ir_intrinsic_shared_atomic_add
:
1121 op
= ir
->return_deref
->type
->is_integer_32_64()
1122 ? nir_intrinsic_shared_atomic_add
1123 : nir_intrinsic_shared_atomic_fadd
;
1125 case ir_intrinsic_shared_atomic_and
:
1126 op
= nir_intrinsic_shared_atomic_and
;
1128 case ir_intrinsic_shared_atomic_or
:
1129 op
= nir_intrinsic_shared_atomic_or
;
1131 case ir_intrinsic_shared_atomic_xor
:
1132 op
= nir_intrinsic_shared_atomic_xor
;
1134 case ir_intrinsic_shared_atomic_min
:
1135 assert(ir
->return_deref
);
1136 if (ir
->return_deref
->type
== glsl_type::int_type
)
1137 op
= nir_intrinsic_shared_atomic_imin
;
1138 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1139 op
= nir_intrinsic_shared_atomic_umin
;
1140 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1141 op
= nir_intrinsic_shared_atomic_fmin
;
1143 unreachable("Invalid type");
1145 case ir_intrinsic_shared_atomic_max
:
1146 assert(ir
->return_deref
);
1147 if (ir
->return_deref
->type
== glsl_type::int_type
)
1148 op
= nir_intrinsic_shared_atomic_imax
;
1149 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
1150 op
= nir_intrinsic_shared_atomic_umax
;
1151 else if (ir
->return_deref
->type
== glsl_type::float_type
)
1152 op
= nir_intrinsic_shared_atomic_fmax
;
1154 unreachable("Invalid type");
1156 case ir_intrinsic_shared_atomic_exchange
:
1157 op
= nir_intrinsic_shared_atomic_exchange
;
1159 case ir_intrinsic_shared_atomic_comp_swap
:
1160 op
= ir
->return_deref
->type
->is_integer_32_64()
1161 ? nir_intrinsic_shared_atomic_comp_swap
1162 : nir_intrinsic_shared_atomic_fcomp_swap
;
1164 case ir_intrinsic_vote_any
:
1165 op
= nir_intrinsic_vote_any
;
1167 case ir_intrinsic_vote_all
:
1168 op
= nir_intrinsic_vote_all
;
1170 case ir_intrinsic_vote_eq
:
1171 op
= nir_intrinsic_vote_ieq
;
1173 case ir_intrinsic_ballot
:
1174 op
= nir_intrinsic_ballot
;
1176 case ir_intrinsic_read_invocation
:
1177 op
= nir_intrinsic_read_invocation
;
1179 case ir_intrinsic_read_first_invocation
:
1180 op
= nir_intrinsic_read_first_invocation
;
1182 case ir_intrinsic_helper_invocation
:
1183 op
= nir_intrinsic_is_helper_invocation
;
1186 unreachable("not reached");
1189 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
1190 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
1193 case nir_intrinsic_deref_atomic_add
:
1194 case nir_intrinsic_deref_atomic_imin
:
1195 case nir_intrinsic_deref_atomic_umin
:
1196 case nir_intrinsic_deref_atomic_imax
:
1197 case nir_intrinsic_deref_atomic_umax
:
1198 case nir_intrinsic_deref_atomic_and
:
1199 case nir_intrinsic_deref_atomic_or
:
1200 case nir_intrinsic_deref_atomic_xor
:
1201 case nir_intrinsic_deref_atomic_exchange
:
1202 case nir_intrinsic_deref_atomic_comp_swap
:
1203 case nir_intrinsic_deref_atomic_fadd
:
1204 case nir_intrinsic_deref_atomic_fmin
:
1205 case nir_intrinsic_deref_atomic_fmax
:
1206 case nir_intrinsic_deref_atomic_fcomp_swap
: {
1207 int param_count
= ir
->actual_parameters
.length();
1208 assert(param_count
== 2 || param_count
== 3);
1211 exec_node
*param
= ir
->actual_parameters
.get_head();
1212 ir_rvalue
*rvalue
= (ir_rvalue
*) param
;
1213 ir_dereference
*deref
= rvalue
->as_dereference();
1214 ir_swizzle
*swizzle
= NULL
;
1216 /* We may have a swizzle to pick off a single vec4 component */
1217 swizzle
= rvalue
->as_swizzle();
1218 assert(swizzle
&& swizzle
->type
->vector_elements
== 1);
1219 deref
= swizzle
->val
->as_dereference();
1222 nir_deref_instr
*nir_deref
= evaluate_deref(deref
);
1224 nir_deref
= nir_build_deref_array_imm(&b
, nir_deref
,
1227 instr
->src
[0] = nir_src_for_ssa(&nir_deref
->dest
.ssa
);
1229 nir_intrinsic_set_access(instr
, deref_get_qualifier(nir_deref
));
1231 /* data1 parameter (this is always present) */
1232 param
= param
->get_next();
1233 ir_instruction
*inst
= (ir_instruction
*) param
;
1234 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1236 /* data2 parameter (only with atomic_comp_swap) */
1237 if (param_count
== 3) {
1238 assert(op
== nir_intrinsic_deref_atomic_comp_swap
||
1239 op
== nir_intrinsic_deref_atomic_fcomp_swap
);
1240 param
= param
->get_next();
1241 inst
= (ir_instruction
*) param
;
1242 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1246 assert(ir
->return_deref
);
1247 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1248 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1249 nir_builder_instr_insert(&b
, &instr
->instr
);
1252 case nir_intrinsic_atomic_counter_read_deref
:
1253 case nir_intrinsic_atomic_counter_inc_deref
:
1254 case nir_intrinsic_atomic_counter_pre_dec_deref
:
1255 case nir_intrinsic_atomic_counter_add_deref
:
1256 case nir_intrinsic_atomic_counter_min_deref
:
1257 case nir_intrinsic_atomic_counter_max_deref
:
1258 case nir_intrinsic_atomic_counter_and_deref
:
1259 case nir_intrinsic_atomic_counter_or_deref
:
1260 case nir_intrinsic_atomic_counter_xor_deref
:
1261 case nir_intrinsic_atomic_counter_exchange_deref
:
1262 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
1263 /* Set the counter variable dereference. */
1264 exec_node
*param
= ir
->actual_parameters
.get_head();
1265 ir_dereference
*counter
= (ir_dereference
*)param
;
1267 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
1268 param
= param
->get_next();
1270 /* Set the intrinsic destination. */
1271 if (ir
->return_deref
) {
1272 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1275 /* Set the intrinsic parameters. */
1276 if (!param
->is_tail_sentinel()) {
1278 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1279 param
= param
->get_next();
1282 if (!param
->is_tail_sentinel()) {
1284 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1285 param
= param
->get_next();
1288 nir_builder_instr_insert(&b
, &instr
->instr
);
1291 case nir_intrinsic_image_deref_load
:
1292 case nir_intrinsic_image_deref_store
:
1293 case nir_intrinsic_image_deref_atomic_add
:
1294 case nir_intrinsic_image_deref_atomic_imin
:
1295 case nir_intrinsic_image_deref_atomic_umin
:
1296 case nir_intrinsic_image_deref_atomic_imax
:
1297 case nir_intrinsic_image_deref_atomic_umax
:
1298 case nir_intrinsic_image_deref_atomic_and
:
1299 case nir_intrinsic_image_deref_atomic_or
:
1300 case nir_intrinsic_image_deref_atomic_xor
:
1301 case nir_intrinsic_image_deref_atomic_exchange
:
1302 case nir_intrinsic_image_deref_atomic_comp_swap
:
1303 case nir_intrinsic_image_deref_atomic_fadd
:
1304 case nir_intrinsic_image_deref_samples
:
1305 case nir_intrinsic_image_deref_size
:
1306 case nir_intrinsic_image_deref_atomic_inc_wrap
:
1307 case nir_intrinsic_image_deref_atomic_dec_wrap
: {
1308 nir_ssa_undef_instr
*instr_undef
=
1309 nir_ssa_undef_instr_create(shader
, 1, 32);
1310 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
1312 /* Set the image variable dereference. */
1313 exec_node
*param
= ir
->actual_parameters
.get_head();
1314 ir_dereference
*image
= (ir_dereference
*)param
;
1315 nir_deref_instr
*deref
= evaluate_deref(image
);
1316 const glsl_type
*type
= deref
->type
;
1318 nir_intrinsic_set_access(instr
, deref_get_qualifier(deref
));
1320 instr
->src
[0] = nir_src_for_ssa(&deref
->dest
.ssa
);
1321 param
= param
->get_next();
1323 /* Set the intrinsic destination. */
1324 if (ir
->return_deref
) {
1325 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
1326 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1327 num_components
, 32, NULL
);
1330 if (op
== nir_intrinsic_image_deref_size
) {
1331 instr
->num_components
= instr
->dest
.ssa
.num_components
;
1332 } else if (op
== nir_intrinsic_image_deref_load
||
1333 op
== nir_intrinsic_image_deref_store
) {
1334 instr
->num_components
= 4;
1337 if (op
== nir_intrinsic_image_deref_size
||
1338 op
== nir_intrinsic_image_deref_samples
) {
1339 nir_builder_instr_insert(&b
, &instr
->instr
);
1343 /* Set the address argument, extending the coordinate vector to four
1346 nir_ssa_def
*src_addr
=
1347 evaluate_rvalue((ir_dereference
*)param
);
1348 nir_ssa_def
*srcs
[4];
1350 for (int i
= 0; i
< 4; i
++) {
1351 if (i
< type
->coordinate_components())
1352 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
1354 srcs
[i
] = &instr_undef
->def
;
1357 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
1358 param
= param
->get_next();
1360 /* Set the sample argument, which is undefined for single-sample
1363 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
1365 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1366 param
= param
->get_next();
1368 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
1371 /* Set the intrinsic parameters. */
1372 if (!param
->is_tail_sentinel()) {
1374 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1375 param
= param
->get_next();
1376 } else if (op
== nir_intrinsic_image_deref_load
) {
1377 instr
->src
[3] = nir_src_for_ssa(nir_imm_int(&b
, 0)); /* LOD */
1380 if (!param
->is_tail_sentinel()) {
1382 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
1383 param
= param
->get_next();
1384 } else if (op
== nir_intrinsic_image_deref_store
) {
1385 instr
->src
[4] = nir_src_for_ssa(nir_imm_int(&b
, 0)); /* LOD */
1388 nir_builder_instr_insert(&b
, &instr
->instr
);
1391 case nir_intrinsic_memory_barrier
:
1392 case nir_intrinsic_group_memory_barrier
:
1393 case nir_intrinsic_memory_barrier_atomic_counter
:
1394 case nir_intrinsic_memory_barrier_buffer
:
1395 case nir_intrinsic_memory_barrier_image
:
1396 case nir_intrinsic_memory_barrier_shared
:
1397 nir_builder_instr_insert(&b
, &instr
->instr
);
1399 case nir_intrinsic_shader_clock
:
1400 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
1401 instr
->num_components
= 2;
1402 nir_builder_instr_insert(&b
, &instr
->instr
);
1404 case nir_intrinsic_begin_invocation_interlock
:
1405 nir_builder_instr_insert(&b
, &instr
->instr
);
1407 case nir_intrinsic_end_invocation_interlock
:
1408 nir_builder_instr_insert(&b
, &instr
->instr
);
1410 case nir_intrinsic_store_ssbo
: {
1411 exec_node
*param
= ir
->actual_parameters
.get_head();
1412 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1414 param
= param
->get_next();
1415 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1417 param
= param
->get_next();
1418 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1420 param
= param
->get_next();
1421 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1424 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1425 if (val
->type
->is_boolean())
1426 nir_val
= nir_b2i32(&b
, nir_val
);
1428 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1429 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1430 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1431 intrinsic_set_std430_align(instr
, val
->type
);
1432 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1433 instr
->num_components
= val
->type
->vector_elements
;
1435 nir_builder_instr_insert(&b
, &instr
->instr
);
1438 case nir_intrinsic_load_ssbo
: {
1439 exec_node
*param
= ir
->actual_parameters
.get_head();
1440 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1442 param
= param
->get_next();
1443 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1445 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1446 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1448 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1449 instr
->num_components
= type
->vector_elements
;
1450 intrinsic_set_std430_align(instr
, type
);
1452 /* Setup destination register */
1453 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1454 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1455 type
->vector_elements
, bit_size
, NULL
);
1457 /* Insert the created nir instruction now since in the case of boolean
1458 * result we will need to emit another instruction after it
1460 nir_builder_instr_insert(&b
, &instr
->instr
);
1463 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1464 * consider a true boolean to be ~0. Fix this up with a != 0
1467 if (type
->is_boolean())
1468 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1471 case nir_intrinsic_ssbo_atomic_add
:
1472 case nir_intrinsic_ssbo_atomic_imin
:
1473 case nir_intrinsic_ssbo_atomic_umin
:
1474 case nir_intrinsic_ssbo_atomic_imax
:
1475 case nir_intrinsic_ssbo_atomic_umax
:
1476 case nir_intrinsic_ssbo_atomic_and
:
1477 case nir_intrinsic_ssbo_atomic_or
:
1478 case nir_intrinsic_ssbo_atomic_xor
:
1479 case nir_intrinsic_ssbo_atomic_exchange
:
1480 case nir_intrinsic_ssbo_atomic_comp_swap
:
1481 case nir_intrinsic_ssbo_atomic_fadd
:
1482 case nir_intrinsic_ssbo_atomic_fmin
:
1483 case nir_intrinsic_ssbo_atomic_fmax
:
1484 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1485 int param_count
= ir
->actual_parameters
.length();
1486 assert(param_count
== 3 || param_count
== 4);
1489 exec_node
*param
= ir
->actual_parameters
.get_head();
1490 ir_instruction
*inst
= (ir_instruction
*) param
;
1491 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1494 param
= param
->get_next();
1495 inst
= (ir_instruction
*) param
;
1496 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1498 /* data1 parameter (this is always present) */
1499 param
= param
->get_next();
1500 inst
= (ir_instruction
*) param
;
1501 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1503 /* data2 parameter (only with atomic_comp_swap) */
1504 if (param_count
== 4) {
1505 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1506 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1507 param
= param
->get_next();
1508 inst
= (ir_instruction
*) param
;
1509 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1513 assert(ir
->return_deref
);
1514 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1515 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1516 nir_builder_instr_insert(&b
, &instr
->instr
);
1519 case nir_intrinsic_load_shared
: {
1520 exec_node
*param
= ir
->actual_parameters
.get_head();
1521 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1523 nir_intrinsic_set_base(instr
, 0);
1524 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1526 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1527 instr
->num_components
= type
->vector_elements
;
1528 intrinsic_set_std430_align(instr
, type
);
1530 /* Setup destination register */
1531 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1532 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1533 type
->vector_elements
, bit_size
, NULL
);
1535 nir_builder_instr_insert(&b
, &instr
->instr
);
1537 /* The value in shared memory is a 32-bit value */
1538 if (type
->is_boolean())
1539 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1542 case nir_intrinsic_store_shared
: {
1543 exec_node
*param
= ir
->actual_parameters
.get_head();
1544 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1546 param
= param
->get_next();
1547 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1549 param
= param
->get_next();
1550 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1553 nir_intrinsic_set_base(instr
, 0);
1554 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1556 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1558 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1559 /* The value in shared memory is a 32-bit value */
1560 if (val
->type
->is_boolean())
1561 nir_val
= nir_b2i32(&b
, nir_val
);
1563 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1564 instr
->num_components
= val
->type
->vector_elements
;
1565 intrinsic_set_std430_align(instr
, val
->type
);
1567 nir_builder_instr_insert(&b
, &instr
->instr
);
1570 case nir_intrinsic_shared_atomic_add
:
1571 case nir_intrinsic_shared_atomic_imin
:
1572 case nir_intrinsic_shared_atomic_umin
:
1573 case nir_intrinsic_shared_atomic_imax
:
1574 case nir_intrinsic_shared_atomic_umax
:
1575 case nir_intrinsic_shared_atomic_and
:
1576 case nir_intrinsic_shared_atomic_or
:
1577 case nir_intrinsic_shared_atomic_xor
:
1578 case nir_intrinsic_shared_atomic_exchange
:
1579 case nir_intrinsic_shared_atomic_comp_swap
:
1580 case nir_intrinsic_shared_atomic_fadd
:
1581 case nir_intrinsic_shared_atomic_fmin
:
1582 case nir_intrinsic_shared_atomic_fmax
:
1583 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1584 int param_count
= ir
->actual_parameters
.length();
1585 assert(param_count
== 2 || param_count
== 3);
1588 exec_node
*param
= ir
->actual_parameters
.get_head();
1589 ir_instruction
*inst
= (ir_instruction
*) param
;
1590 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1592 /* data1 parameter (this is always present) */
1593 param
= param
->get_next();
1594 inst
= (ir_instruction
*) param
;
1595 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1597 /* data2 parameter (only with atomic_comp_swap) */
1598 if (param_count
== 3) {
1599 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1600 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1601 param
= param
->get_next();
1602 inst
= (ir_instruction
*) param
;
1604 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1608 assert(ir
->return_deref
);
1609 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1610 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1611 ir
->return_deref
->type
->vector_elements
,
1613 nir_builder_instr_insert(&b
, &instr
->instr
);
1616 case nir_intrinsic_vote_any
:
1617 case nir_intrinsic_vote_all
:
1618 case nir_intrinsic_vote_ieq
: {
1619 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1620 instr
->num_components
= 1;
1622 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1623 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1625 nir_builder_instr_insert(&b
, &instr
->instr
);
1629 case nir_intrinsic_ballot
: {
1630 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1631 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1632 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1634 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1635 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1637 nir_builder_instr_insert(&b
, &instr
->instr
);
1640 case nir_intrinsic_read_invocation
: {
1641 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1642 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1643 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1645 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1646 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1648 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1649 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1651 nir_builder_instr_insert(&b
, &instr
->instr
);
1654 case nir_intrinsic_read_first_invocation
: {
1655 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1656 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1657 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1659 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1660 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1662 nir_builder_instr_insert(&b
, &instr
->instr
);
1665 case nir_intrinsic_is_helper_invocation
: {
1666 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 1, NULL
);
1667 instr
->num_components
= 1;
1668 nir_builder_instr_insert(&b
, &instr
->instr
);
1672 unreachable("not reached");
1675 if (ir
->return_deref
)
1676 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1681 struct hash_entry
*entry
=
1682 _mesa_hash_table_search(this->overload_table
, ir
->callee
);
1684 nir_function
*callee
= (nir_function
*) entry
->data
;
1686 nir_call_instr
*call
= nir_call_instr_create(this->shader
, callee
);
1689 nir_deref_instr
*ret_deref
= NULL
;
1690 if (ir
->return_deref
) {
1691 nir_variable
*ret_tmp
=
1692 nir_local_variable_create(this->impl
, ir
->return_deref
->type
,
1694 ret_deref
= nir_build_deref_var(&b
, ret_tmp
);
1695 call
->params
[i
++] = nir_src_for_ssa(&ret_deref
->dest
.ssa
);
1698 foreach_two_lists(formal_node
, &ir
->callee
->parameters
,
1699 actual_node
, &ir
->actual_parameters
) {
1700 ir_rvalue
*param_rvalue
= (ir_rvalue
*) actual_node
;
1701 ir_variable
*sig_param
= (ir_variable
*) formal_node
;
1703 if (sig_param
->data
.mode
== ir_var_function_out
) {
1704 nir_deref_instr
*out_deref
= evaluate_deref(param_rvalue
);
1705 call
->params
[i
] = nir_src_for_ssa(&out_deref
->dest
.ssa
);
1706 } else if (sig_param
->data
.mode
== ir_var_function_in
) {
1707 nir_ssa_def
*val
= evaluate_rvalue(param_rvalue
);
1708 nir_src src
= nir_src_for_ssa(val
);
1710 nir_src_copy(&call
->params
[i
], &src
, call
);
1711 } else if (sig_param
->data
.mode
== ir_var_function_inout
) {
1712 unreachable("unimplemented: inout parameters");
1718 nir_builder_instr_insert(&b
, &call
->instr
);
1720 if (ir
->return_deref
)
1721 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), nir_load_deref(&b
, ret_deref
), ~0);
1725 nir_visitor::visit(ir_assignment
*ir
)
1727 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1729 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1730 ir
->lhs
->variable_referenced()->data
.precise
;
1732 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1733 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1734 nir_deref_instr
*lhs
= evaluate_deref(ir
->lhs
);
1735 nir_deref_instr
*rhs
= evaluate_deref(ir
->rhs
);
1736 enum gl_access_qualifier lhs_qualifiers
= deref_get_qualifier(lhs
);
1737 enum gl_access_qualifier rhs_qualifiers
= deref_get_qualifier(rhs
);
1738 if (ir
->condition
) {
1739 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1740 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1742 nir_pop_if(&b
, NULL
);
1744 nir_copy_deref_with_access(&b
, lhs
, rhs
, lhs_qualifiers
,
1750 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1752 ir
->lhs
->accept(this);
1753 nir_deref_instr
*lhs_deref
= this->deref
;
1754 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1756 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1757 /* GLSL IR will give us the input to the write-masked assignment in a
1758 * single packed vector. So, for example, if the writemask is xzw, then
1759 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1763 unsigned component
= 0;
1764 for (unsigned i
= 0; i
< 4; i
++) {
1765 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1767 src
= nir_swizzle(&b
, src
, swiz
, num_components
);
1770 enum gl_access_qualifier qualifiers
= deref_get_qualifier(lhs_deref
);
1771 if (ir
->condition
) {
1772 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1773 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1775 nir_pop_if(&b
, NULL
);
1777 nir_store_deref_with_access(&b
, lhs_deref
, src
, ir
->write_mask
,
1783 * Given an instruction, returns a pointer to its destination or NULL if there
1784 * is no destination.
1786 * Note that this only handles instructions we generate at this level.
1789 get_instr_dest(nir_instr
*instr
)
1791 nir_alu_instr
*alu_instr
;
1792 nir_intrinsic_instr
*intrinsic_instr
;
1793 nir_tex_instr
*tex_instr
;
1795 switch (instr
->type
) {
1796 case nir_instr_type_alu
:
1797 alu_instr
= nir_instr_as_alu(instr
);
1798 return &alu_instr
->dest
.dest
;
1800 case nir_instr_type_intrinsic
:
1801 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1802 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1803 return &intrinsic_instr
->dest
;
1807 case nir_instr_type_tex
:
1808 tex_instr
= nir_instr_as_tex(instr
);
1809 return &tex_instr
->dest
;
1812 unreachable("not reached");
1819 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1822 nir_dest
*dest
= get_instr_dest(instr
);
1825 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1827 nir_builder_instr_insert(&b
, instr
);
1830 assert(dest
->is_ssa
);
1831 this->result
= &dest
->ssa
;
1836 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1839 if (ir
->as_dereference() || ir
->as_constant()) {
1841 * A dereference is being used on the right hand side, which means we
1842 * must emit a variable load.
1845 enum gl_access_qualifier access
= deref_get_qualifier(this->deref
);
1846 this->result
= nir_load_deref_with_access(&b
, this->deref
, access
);
1849 return this->result
;
1853 type_is_float(glsl_base_type type
)
1855 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1856 type
== GLSL_TYPE_FLOAT16
;
1860 type_is_signed(glsl_base_type type
)
1862 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1863 type
== GLSL_TYPE_INT16
;
1867 nir_visitor::visit(ir_expression
*ir
)
1869 /* Some special cases */
1870 switch (ir
->operation
) {
1871 case ir_binop_ubo_load
: {
1872 nir_intrinsic_instr
*load
=
1873 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1874 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1875 glsl_get_bit_size(ir
->type
);
1876 load
->num_components
= ir
->type
->vector_elements
;
1877 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1878 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1879 intrinsic_set_std430_align(load
, ir
->type
);
1880 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1883 * In UBO's, a true boolean value is any non-zero value, but we consider
1884 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1887 if (ir
->type
->is_boolean())
1888 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1893 case ir_unop_interpolate_at_centroid
:
1894 case ir_binop_interpolate_at_offset
:
1895 case ir_binop_interpolate_at_sample
: {
1896 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1897 ir_swizzle
*swizzle
= NULL
;
1899 /* the api does not allow a swizzle here, but the varying packing code
1900 * may have pushed one into here.
1902 swizzle
= ir
->operands
[0]->as_swizzle();
1904 deref
= swizzle
->val
->as_dereference();
1908 deref
->accept(this);
1910 nir_intrinsic_op op
;
1911 if (this->deref
->mode
== nir_var_shader_in
) {
1912 switch (ir
->operation
) {
1913 case ir_unop_interpolate_at_centroid
:
1914 op
= nir_intrinsic_interp_deref_at_centroid
;
1916 case ir_binop_interpolate_at_offset
:
1917 op
= nir_intrinsic_interp_deref_at_offset
;
1919 case ir_binop_interpolate_at_sample
:
1920 op
= nir_intrinsic_interp_deref_at_sample
;
1923 unreachable("Invalid interpolation intrinsic");
1926 /* This case can happen if the vertex shader does not write the
1927 * given varying. In this case, the linker will lower it to a
1928 * global variable. Since interpolating a variable makes no
1929 * sense, we'll just turn it into a load which will probably
1930 * eventually end up as an SSA definition.
1932 assert(this->deref
->mode
== nir_var_shader_temp
);
1933 op
= nir_intrinsic_load_deref
;
1936 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1937 intrin
->num_components
= deref
->type
->vector_elements
;
1938 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1940 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1941 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1942 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1944 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1945 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1948 unsigned swiz
[4] = {
1949 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1952 result
= nir_swizzle(&b
, result
, swiz
,
1953 swizzle
->type
->vector_elements
);
1959 case ir_unop_ssbo_unsized_array_length
: {
1960 nir_intrinsic_instr
*intrin
=
1961 nir_intrinsic_instr_create(b
.shader
,
1962 nir_intrinsic_deref_buffer_array_length
);
1964 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1965 intrin
->src
[0] = nir_src_for_ssa(&evaluate_deref(deref
)->dest
.ssa
);
1967 add_instr(&intrin
->instr
, 1, 32);
1975 nir_ssa_def
*srcs
[4];
1976 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1977 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1979 glsl_base_type types
[4];
1980 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1981 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1983 glsl_base_type out_type
= ir
->type
->base_type
;
1985 switch (ir
->operation
) {
1986 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1987 case ir_unop_logic_not
:
1988 result
= nir_inot(&b
, srcs
[0]);
1991 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1992 : nir_ineg(&b
, srcs
[0]);
1995 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1996 : nir_iabs(&b
, srcs
[0]);
1998 case ir_unop_saturate
:
1999 assert(type_is_float(types
[0]));
2000 result
= nir_fsat(&b
, srcs
[0]);
2003 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
2004 : nir_isign(&b
, srcs
[0]);
2006 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
2007 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
2008 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
2009 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
2010 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
2011 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
2012 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
2048 case ir_unop_i642u64
:
2049 case ir_unop_u642i64
: {
2050 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
2051 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
2052 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
2053 nir_rounding_mode_undef
),
2054 srcs
[0], NULL
, NULL
, NULL
);
2055 /* b2i and b2f don't have fixed bit-size versions so the builder will
2056 * just assume 32 and we have to fix it up here.
2058 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
2062 case ir_unop_bitcast_i2f
:
2063 case ir_unop_bitcast_f2i
:
2064 case ir_unop_bitcast_u2f
:
2065 case ir_unop_bitcast_f2u
:
2066 case ir_unop_bitcast_i642d
:
2067 case ir_unop_bitcast_d2i64
:
2068 case ir_unop_bitcast_u642d
:
2069 case ir_unop_bitcast_d2u64
:
2070 case ir_unop_subroutine_to_int
:
2072 result
= nir_mov(&b
, srcs
[0]);
2074 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
2075 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
2076 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
2077 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
2078 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
2079 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
2080 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
2081 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
2082 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
2083 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
2084 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
2085 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
2086 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
2087 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
2088 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
2089 case ir_unop_pack_snorm_2x16
:
2090 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
2092 case ir_unop_pack_snorm_4x8
:
2093 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
2095 case ir_unop_pack_unorm_2x16
:
2096 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
2098 case ir_unop_pack_unorm_4x8
:
2099 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
2101 case ir_unop_pack_half_2x16
:
2102 result
= nir_pack_half_2x16(&b
, srcs
[0]);
2104 case ir_unop_unpack_snorm_2x16
:
2105 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
2107 case ir_unop_unpack_snorm_4x8
:
2108 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
2110 case ir_unop_unpack_unorm_2x16
:
2111 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
2113 case ir_unop_unpack_unorm_4x8
:
2114 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
2116 case ir_unop_unpack_half_2x16
:
2117 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
2119 case ir_unop_pack_sampler_2x32
:
2120 case ir_unop_pack_image_2x32
:
2121 case ir_unop_pack_double_2x32
:
2122 case ir_unop_pack_int_2x32
:
2123 case ir_unop_pack_uint_2x32
:
2124 result
= nir_pack_64_2x32(&b
, srcs
[0]);
2126 case ir_unop_unpack_sampler_2x32
:
2127 case ir_unop_unpack_image_2x32
:
2128 case ir_unop_unpack_double_2x32
:
2129 case ir_unop_unpack_int_2x32
:
2130 case ir_unop_unpack_uint_2x32
:
2131 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
2133 case ir_unop_bitfield_reverse
:
2134 result
= nir_bitfield_reverse(&b
, srcs
[0]);
2136 case ir_unop_bit_count
:
2137 result
= nir_bit_count(&b
, srcs
[0]);
2139 case ir_unop_find_msb
:
2141 case GLSL_TYPE_UINT
:
2142 result
= nir_ufind_msb(&b
, srcs
[0]);
2145 result
= nir_ifind_msb(&b
, srcs
[0]);
2148 unreachable("Invalid type for findMSB()");
2151 case ir_unop_find_lsb
:
2152 result
= nir_find_lsb(&b
, srcs
[0]);
2156 switch (ir
->type
->vector_elements
) {
2158 switch (ir
->operands
[0]->type
->vector_elements
) {
2159 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
2160 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
2161 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
2162 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
2163 default: unreachable("not reached");
2167 switch (ir
->operands
[0]->type
->vector_elements
) {
2168 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
2169 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
2170 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
2171 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
2172 default: unreachable("not reached");
2176 switch (ir
->operands
[0]->type
->vector_elements
) {
2177 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
2178 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
2179 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
2180 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
2181 default: unreachable("not reached");
2185 switch (ir
->operands
[0]->type
->vector_elements
) {
2186 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
2187 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
2188 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
2189 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
2190 default: unreachable("not reached");
2194 unreachable("not reached");
2197 case ir_unop_get_buffer_size
: {
2198 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
2200 nir_intrinsic_get_buffer_size
);
2201 load
->num_components
= ir
->type
->vector_elements
;
2202 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
2203 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2204 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
2209 result
= nir_atan(&b
, srcs
[0]);
2213 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
2214 : nir_iadd(&b
, srcs
[0], srcs
[1]);
2217 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
2218 : nir_isub(&b
, srcs
[0], srcs
[1]);
2221 if (type_is_float(out_type
))
2222 result
= nir_fmul(&b
, srcs
[0], srcs
[1]);
2223 else if (out_type
== GLSL_TYPE_INT64
&&
2224 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_INT
||
2225 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_INT
))
2226 result
= nir_imul_2x32_64(&b
, srcs
[0], srcs
[1]);
2227 else if (out_type
== GLSL_TYPE_UINT64
&&
2228 (ir
->operands
[0]->type
->base_type
== GLSL_TYPE_UINT
||
2229 ir
->operands
[1]->type
->base_type
== GLSL_TYPE_UINT
))
2230 result
= nir_umul_2x32_64(&b
, srcs
[0], srcs
[1]);
2232 result
= nir_imul(&b
, srcs
[0], srcs
[1]);
2235 if (type_is_float(out_type
))
2236 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
2237 else if (type_is_signed(out_type
))
2238 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
2240 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
2243 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
2244 : nir_umod(&b
, srcs
[0], srcs
[1]);
2247 if (type_is_float(out_type
))
2248 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
2249 else if (type_is_signed(out_type
))
2250 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
2252 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
2255 if (type_is_float(out_type
))
2256 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
2257 else if (type_is_signed(out_type
))
2258 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
2260 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
2262 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
2263 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
2264 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
2265 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
2266 case ir_binop_logic_and
:
2267 result
= nir_iand(&b
, srcs
[0], srcs
[1]);
2269 case ir_binop_logic_or
:
2270 result
= nir_ior(&b
, srcs
[0], srcs
[1]);
2272 case ir_binop_logic_xor
:
2273 result
= nir_ixor(&b
, srcs
[0], srcs
[1]);
2275 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
2276 case ir_binop_rshift
:
2277 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
2278 : nir_ushr(&b
, srcs
[0], srcs
[1]);
2280 case ir_binop_imul_high
:
2281 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
2282 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
2284 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
2285 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
2287 if (type_is_float(types
[0]))
2288 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
2289 else if (type_is_signed(types
[0]))
2290 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
2292 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
2294 case ir_binop_gequal
:
2295 if (type_is_float(types
[0]))
2296 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
2297 else if (type_is_signed(types
[0]))
2298 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
2300 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
2302 case ir_binop_equal
:
2303 if (type_is_float(types
[0]))
2304 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
2306 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
2308 case ir_binop_nequal
:
2309 if (type_is_float(types
[0]))
2310 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
2312 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
2314 case ir_binop_all_equal
:
2315 if (type_is_float(types
[0])) {
2316 switch (ir
->operands
[0]->type
->vector_elements
) {
2317 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
2318 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
2319 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
2320 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
2322 unreachable("not reached");
2325 switch (ir
->operands
[0]->type
->vector_elements
) {
2326 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
2327 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
2328 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
2329 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
2331 unreachable("not reached");
2335 case ir_binop_any_nequal
:
2336 if (type_is_float(types
[0])) {
2337 switch (ir
->operands
[0]->type
->vector_elements
) {
2338 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
2339 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
2340 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
2341 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
2343 unreachable("not reached");
2346 switch (ir
->operands
[0]->type
->vector_elements
) {
2347 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
2348 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
2349 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
2350 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
2352 unreachable("not reached");
2357 switch (ir
->operands
[0]->type
->vector_elements
) {
2358 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
2359 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
2360 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
2362 unreachable("not reached");
2365 case ir_binop_vector_extract
: {
2366 result
= nir_channel(&b
, srcs
[0], 0);
2367 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
2368 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
2369 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
2375 case ir_binop_atan2
:
2376 result
= nir_atan2(&b
, srcs
[0], srcs
[1]);
2379 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
2381 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
2384 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
2387 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
2389 case ir_triop_bitfield_extract
:
2390 result
= (out_type
== GLSL_TYPE_INT
) ?
2391 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
2392 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
2394 case ir_quadop_bitfield_insert
:
2395 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
2397 case ir_quadop_vector
:
2398 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
2402 unreachable("not reached");
2407 nir_visitor::visit(ir_swizzle
*ir
)
2409 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
2410 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
2411 ir
->type
->vector_elements
);
2415 nir_visitor::visit(ir_texture
*ir
)
2422 num_srcs
= 1; /* coordinate */
2427 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
2428 num_srcs
= 2; /* coordinate, bias/lod */
2432 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
2438 if (ir
->lod_info
.lod
!= NULL
)
2439 num_srcs
= 2; /* coordinate, lod */
2441 num_srcs
= 1; /* coordinate */
2445 op
= nir_texop_txf_ms
;
2446 num_srcs
= 2; /* coordinate, sample_index */
2451 if (ir
->lod_info
.lod
!= NULL
)
2452 num_srcs
= 1; /* lod */
2459 num_srcs
= 1; /* coordinate */
2464 num_srcs
= 1; /* coordinate */
2467 case ir_query_levels
:
2468 op
= nir_texop_query_levels
;
2472 case ir_texture_samples
:
2473 op
= nir_texop_texture_samples
;
2477 case ir_samples_identical
:
2478 op
= nir_texop_samples_identical
;
2479 num_srcs
= 1; /* coordinate */
2483 unreachable("not reached");
2486 if (ir
->projector
!= NULL
)
2488 if (ir
->shadow_comparator
!= NULL
)
2490 /* offsets are constants we store inside nir_tex_intrs.offsets */
2491 if (ir
->offset
!= NULL
&& !ir
->offset
->type
->is_array())
2494 /* Add one for the texture deref */
2497 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2500 instr
->sampler_dim
=
2501 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2502 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2503 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2504 if (instr
->is_shadow
)
2505 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2506 switch (ir
->type
->base_type
) {
2507 case GLSL_TYPE_FLOAT
:
2508 instr
->dest_type
= nir_type_float
;
2511 instr
->dest_type
= nir_type_int
;
2513 case GLSL_TYPE_BOOL
:
2514 case GLSL_TYPE_UINT
:
2515 instr
->dest_type
= nir_type_uint
;
2518 unreachable("not reached");
2521 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2523 /* check for bindless handles */
2524 if (sampler_deref
->mode
!= nir_var_uniform
||
2525 nir_deref_instr_get_variable(sampler_deref
)->data
.bindless
) {
2526 nir_ssa_def
*load
= nir_load_deref(&b
, sampler_deref
);
2527 instr
->src
[0].src
= nir_src_for_ssa(load
);
2528 instr
->src
[0].src_type
= nir_tex_src_texture_handle
;
2529 instr
->src
[1].src
= nir_src_for_ssa(load
);
2530 instr
->src
[1].src_type
= nir_tex_src_sampler_handle
;
2532 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2533 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2534 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2535 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2538 unsigned src_number
= 2;
2540 if (ir
->coordinate
!= NULL
) {
2541 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2542 instr
->src
[src_number
].src
=
2543 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2544 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2548 if (ir
->projector
!= NULL
) {
2549 instr
->src
[src_number
].src
=
2550 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2551 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2555 if (ir
->shadow_comparator
!= NULL
) {
2556 instr
->src
[src_number
].src
=
2557 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2558 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2562 if (ir
->offset
!= NULL
) {
2563 if (ir
->offset
->type
->is_array()) {
2564 for (int i
= 0; i
< ir
->offset
->type
->array_size(); i
++) {
2565 const ir_constant
*c
=
2566 ir
->offset
->as_constant()->get_array_element(i
);
2568 for (unsigned j
= 0; j
< 2; ++j
) {
2569 int val
= c
->get_int_component(j
);
2570 assert(val
<= 31 && val
>= -32);
2571 instr
->tg4_offsets
[i
][j
] = val
;
2575 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2577 instr
->src
[src_number
].src
=
2578 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2579 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2586 instr
->src
[src_number
].src
=
2587 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2588 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2595 if (ir
->lod_info
.lod
!= NULL
) {
2596 instr
->src
[src_number
].src
=
2597 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2598 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2604 instr
->src
[src_number
].src
=
2605 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2606 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2608 instr
->src
[src_number
].src
=
2609 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2610 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2615 instr
->src
[src_number
].src
=
2616 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2617 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2622 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2629 assert(src_number
== num_srcs
);
2631 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2632 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2636 nir_visitor::visit(ir_constant
*ir
)
2639 * We don't know if this variable is an array or struct that gets
2640 * dereferenced, so do the safe thing an make it a variable with a
2641 * constant initializer and return a dereference.
2645 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2646 var
->data
.read_only
= true;
2647 var
->constant_initializer
= constant_copy(ir
, var
);
2649 this->deref
= nir_build_deref_var(&b
, var
);
2653 nir_visitor::visit(ir_dereference_variable
*ir
)
2655 if (ir
->variable_referenced()->data
.mode
== ir_var_function_out
) {
2656 unsigned i
= (sig
->return_type
!= glsl_type::void_type
) ? 1 : 0;
2658 foreach_in_list(ir_variable
, param
, &sig
->parameters
) {
2659 if (param
== ir
->variable_referenced()) {
2665 this->deref
= nir_build_deref_cast(&b
, nir_load_param(&b
, i
),
2666 nir_var_function_temp
, ir
->type
, 0);
2670 assert(ir
->variable_referenced()->data
.mode
!= ir_var_function_inout
);
2672 struct hash_entry
*entry
=
2673 _mesa_hash_table_search(this->var_table
, ir
->var
);
2675 nir_variable
*var
= (nir_variable
*) entry
->data
;
2677 this->deref
= nir_build_deref_var(&b
, var
);
2681 nir_visitor::visit(ir_dereference_record
*ir
)
2683 ir
->record
->accept(this);
2685 int field_index
= ir
->field_idx
;
2686 assert(field_index
>= 0);
2688 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2692 nir_visitor::visit(ir_dereference_array
*ir
)
2694 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2696 ir
->array
->accept(this);
2698 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2702 nir_visitor::visit(ir_barrier
*)
2704 if (shader
->info
.stage
== MESA_SHADER_COMPUTE
) {
2705 nir_intrinsic_instr
*shared_barrier
=
2706 nir_intrinsic_instr_create(this->shader
,
2707 nir_intrinsic_memory_barrier_shared
);
2708 nir_builder_instr_insert(&b
, &shared_barrier
->instr
);
2709 } else if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
) {
2710 nir_intrinsic_instr
*patch_barrier
=
2711 nir_intrinsic_instr_create(this->shader
,
2712 nir_intrinsic_memory_barrier_tcs_patch
);
2713 nir_builder_instr_insert(&b
, &patch_barrier
->instr
);
2716 nir_intrinsic_instr
*instr
=
2717 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_control_barrier
);
2718 nir_builder_instr_insert(&b
, &instr
->instr
);
2722 glsl_float64_funcs_to_nir(struct gl_context
*ctx
,
2723 const nir_shader_compiler_options
*options
)
2725 /* We pretend it's a vertex shader. Ultimately, the stage shouldn't
2726 * matter because we're not optimizing anything here.
2728 struct gl_shader
*sh
= _mesa_new_shader(-1, MESA_SHADER_VERTEX
);
2729 sh
->Source
= float64_source
;
2730 sh
->CompileStatus
= COMPILE_FAILURE
;
2731 _mesa_glsl_compile_shader(ctx
, sh
, false, false, true);
2733 if (!sh
->CompileStatus
) {
2736 "fp64 software impl compile failed:\n%s\nsource:\n%s\n",
2737 sh
->InfoLog
, float64_source
);
2742 nir_shader
*nir
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, options
, NULL
);
2744 nir_visitor
v1(ctx
, nir
);
2745 nir_function_visitor
v2(&v1
);
2747 visit_exec_list(sh
->ir
, &v1
);
2749 /* _mesa_delete_shader will try to free sh->Source but it's static const */
2751 _mesa_delete_shader(ctx
, sh
);
2753 nir_validate_shader(nir
, "float64_funcs_to_nir");
2755 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
2756 NIR_PASS_V(nir
, nir_lower_returns
);
2757 NIR_PASS_V(nir
, nir_inline_functions
);
2758 NIR_PASS_V(nir
, nir_opt_deref
);
2760 /* Do some optimizations to clean up the shader now. By optimizing the
2761 * functions in the library, we avoid having to re-do that work every
2762 * time we inline a copy of a function. Reducing basic blocks also helps
2763 * with compile times.
2765 NIR_PASS_V(nir
, nir_lower_vars_to_ssa
);
2766 NIR_PASS_V(nir
, nir_copy_prop
);
2767 NIR_PASS_V(nir
, nir_opt_dce
);
2768 NIR_PASS_V(nir
, nir_opt_cse
);
2769 NIR_PASS_V(nir
, nir_opt_gcm
, true);
2770 NIR_PASS_V(nir
, nir_opt_peephole_select
, 1, false, false);
2771 NIR_PASS_V(nir
, nir_opt_dce
);