2 * Copyright © 2010 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
21 * DEALINGS IN THE SOFTWARE.
26 #include "glsl_types.h"
28 #include "hash_table.h"
32 * Duplicate an IR variable
35 * This will probably be made \c virtual and moved to the base class
39 ir_variable::clone(struct hash_table
*ht
) const
41 void *ctx
= talloc_parent(this);
42 ir_variable
*var
= new(ctx
) ir_variable(this->type
, this->name
,
43 (ir_variable_mode
) this->mode
);
45 var
->max_array_access
= this->max_array_access
;
46 var
->read_only
= this->read_only
;
47 var
->centroid
= this->centroid
;
48 var
->invariant
= this->invariant
;
49 var
->shader_in
= this->shader_in
;
50 var
->shader_out
= this->shader_out
;
51 var
->interpolation
= this->interpolation
;
52 var
->array_lvalue
= this->array_lvalue
;
53 var
->location
= this->location
;
54 var
->warn_extension
= this->warn_extension
;
55 var
->origin_upper_left
= this->origin_upper_left
;
56 var
->pixel_center_integer
= this->pixel_center_integer
;
58 if (this->constant_value
)
59 var
->constant_value
= this->constant_value
->clone(ht
);
62 hash_table_insert(ht
, var
, (void *)const_cast<ir_variable
*>(this));
69 ir_swizzle::clone(struct hash_table
*ht
) const
71 void *ctx
= talloc_parent(this);
72 return new(ctx
) ir_swizzle(this->val
->clone(ht
), this->mask
);
76 ir_return::clone(struct hash_table
*ht
) const
78 void *ctx
= talloc_parent(this);
79 ir_rvalue
*new_value
= NULL
;
82 new_value
= this->value
->clone(ht
);
84 return new(ctx
) ir_return(new_value
);
88 ir_discard::clone(struct hash_table
*ht
) const
90 void *ctx
= talloc_parent(this);
91 ir_rvalue
*new_condition
= NULL
;
93 if (this->condition
!= NULL
)
94 new_condition
= this->condition
->clone(ht
);
96 return new(ctx
) ir_discard(new_condition
);
100 ir_loop_jump::clone(struct hash_table
*ht
) const
102 void *ctx
= talloc_parent(this);
105 return new(ctx
) ir_loop_jump(this->mode
);
109 ir_if::clone(struct hash_table
*ht
) const
111 void *ctx
= talloc_parent(this);
112 ir_if
*new_if
= new(ctx
) ir_if(this->condition
->clone(ht
));
114 foreach_iter(exec_list_iterator
, iter
, this->then_instructions
) {
115 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
116 new_if
->then_instructions
.push_tail(ir
->clone(ht
));
119 foreach_iter(exec_list_iterator
, iter
, this->else_instructions
) {
120 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
121 new_if
->else_instructions
.push_tail(ir
->clone(ht
));
128 ir_loop::clone(struct hash_table
*ht
) const
130 void *ctx
= talloc_parent(this);
131 ir_loop
*new_loop
= new(ctx
) ir_loop();
134 new_loop
->from
= this->from
->clone(ht
);
136 new_loop
->to
= this->to
->clone(ht
);
138 new_loop
->increment
= this->increment
->clone(ht
);
139 new_loop
->counter
= counter
;
141 foreach_iter(exec_list_iterator
, iter
, this->body_instructions
) {
142 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
143 new_loop
->body_instructions
.push_tail(ir
->clone(ht
));
150 ir_call::clone(struct hash_table
*ht
) const
152 void *ctx
= talloc_parent(this);
153 exec_list new_parameters
;
155 foreach_iter(exec_list_iterator
, iter
, this->actual_parameters
) {
156 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
157 new_parameters
.push_tail(ir
->clone(ht
));
160 return new(ctx
) ir_call(this->callee
, &new_parameters
);
164 ir_expression::clone(struct hash_table
*ht
) const
166 void *ctx
= talloc_parent(this);
167 ir_rvalue
*op
[2] = {NULL
, NULL
};
170 for (i
= 0; i
< get_num_operands(); i
++) {
171 op
[i
] = this->operands
[i
]->clone(ht
);
174 return new(ctx
) ir_expression(this->operation
, this->type
, op
[0], op
[1]);
177 ir_dereference_variable
*
178 ir_dereference_variable::clone(struct hash_table
*ht
) const
180 void *ctx
= talloc_parent(this);
181 ir_variable
*new_var
;
184 new_var
= (ir_variable
*)hash_table_find(ht
, this->var
);
191 return new(ctx
) ir_dereference_variable(new_var
);
194 ir_dereference_array
*
195 ir_dereference_array::clone(struct hash_table
*ht
) const
197 void *ctx
= talloc_parent(this);
198 return new(ctx
) ir_dereference_array(this->array
->clone(ht
),
199 this->array_index
->clone(ht
));
202 ir_dereference_record
*
203 ir_dereference_record::clone(struct hash_table
*ht
) const
205 void *ctx
= talloc_parent(this);
206 return new(ctx
) ir_dereference_record(this->record
->clone(ht
),
211 ir_texture::clone(struct hash_table
*ht
) const
213 void *ctx
= talloc_parent(this);
214 ir_texture
*new_tex
= new(ctx
) ir_texture(this->op
);
215 new_tex
->type
= this->type
;
217 new_tex
->sampler
= this->sampler
->clone(ht
);
218 new_tex
->coordinate
= this->coordinate
->clone(ht
);
220 new_tex
->projector
= this->projector
->clone(ht
);
221 if (this->shadow_comparitor
) {
222 new_tex
->shadow_comparitor
= this->shadow_comparitor
->clone(ht
);
225 for (int i
= 0; i
< 3; i
++)
226 new_tex
->offsets
[i
] = this->offsets
[i
];
232 new_tex
->lod_info
.bias
= this->lod_info
.bias
->clone(ht
);
236 new_tex
->lod_info
.lod
= this->lod_info
.lod
->clone(ht
);
239 new_tex
->lod_info
.grad
.dPdx
= this->lod_info
.grad
.dPdx
->clone(ht
);
240 new_tex
->lod_info
.grad
.dPdy
= this->lod_info
.grad
.dPdy
->clone(ht
);
248 ir_assignment::clone(struct hash_table
*ht
) const
250 ir_rvalue
*new_condition
= NULL
;
253 new_condition
= this->condition
->clone(ht
);
255 void *ctx
= talloc_parent(this);
256 return new(ctx
) ir_assignment(this->lhs
->clone(ht
),
257 this->rhs
->clone(ht
),
262 ir_function::clone(struct hash_table
*ht
) const
264 void *mem_ctx
= talloc_parent(this);
265 ir_function
*copy
= new(mem_ctx
) ir_function(this->name
);
267 foreach_list_const(node
, &this->signatures
) {
268 const ir_function_signature
*const sig
=
269 (const ir_function_signature
*const) node
;
271 ir_function_signature
*sig_copy
= sig
->clone(ht
);
272 copy
->add_signature(sig_copy
);
275 hash_table_insert(ht
, sig_copy
,
276 (void *)const_cast<ir_function_signature
*>(sig
));
282 ir_function_signature
*
283 ir_function_signature::clone(struct hash_table
*ht
) const
285 void *mem_ctx
= talloc_parent(this);
286 ir_function_signature
*copy
=
287 new(mem_ctx
) ir_function_signature(this->return_type
);
289 copy
->is_defined
= this->is_defined
;
290 copy
->is_built_in
= this->is_built_in
;
292 /* Clone the parameter list.
294 foreach_list_const(node
, &this->parameters
) {
295 const ir_variable
*const param
= (const ir_variable
*) node
;
297 assert(const_cast<ir_variable
*>(param
)->as_variable() != NULL
);
299 ir_variable
*const param_copy
= param
->clone(ht
);
300 copy
->parameters
.push_tail(param_copy
);
303 /* Clone the instruction list.
305 foreach_list_const(node
, &this->body
) {
306 const ir_instruction
*const inst
= (const ir_instruction
*) node
;
308 ir_instruction
*const inst_copy
= inst
->clone(ht
);
309 copy
->body
.push_tail(inst_copy
);
316 ir_constant::clone(struct hash_table
*ht
) const
318 void *ctx
= talloc_parent(this);
321 switch (this->type
->base_type
) {
324 case GLSL_TYPE_FLOAT
:
326 return new(ctx
) ir_constant(this->type
, &this->value
);
328 case GLSL_TYPE_STRUCT
: {
329 ir_constant
*c
= new(ctx
) ir_constant
;
331 c
->type
= this->type
;
332 for (exec_node
*node
= this->components
.head
333 ; !node
->is_tail_sentinal()
334 ; node
= node
->next
) {
335 ir_constant
*const orig
= (ir_constant
*) node
;
337 c
->components
.push_tail(orig
->clone(NULL
));
343 case GLSL_TYPE_ARRAY
: {
344 ir_constant
*c
= new(ctx
) ir_constant
;
346 c
->type
= this->type
;
347 c
->array_elements
= talloc_array(c
, ir_constant
*, this->type
->length
);
348 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
349 c
->array_elements
[i
] = this->array_elements
[i
]->clone(NULL
);
355 assert(!"Should not get here."); break;
361 class fixup_ir_call_visitor
: public ir_hierarchical_visitor
{
363 fixup_ir_call_visitor(struct hash_table
*ht
)
368 virtual ir_visitor_status
visit_enter(ir_call
*ir
)
370 /* Try to find the function signature referenced by the ir_call in the
371 * table. If it is found, replace it with the value from the table.
373 ir_function_signature
*sig
=
374 (ir_function_signature
*) hash_table_find(this->ht
, ir
->get_callee());
378 /* Since this may be used before function call parameters are flattened,
379 * the children also need to be processed.
381 return visit_continue
;
385 struct hash_table
*ht
;
390 fixup_function_calls(struct hash_table
*ht
, exec_list
*instructions
)
392 fixup_ir_call_visitor
v(ht
);
398 clone_ir_list(exec_list
*out
, const exec_list
*in
)
400 struct hash_table
*ht
=
401 hash_table_ctor(0, hash_table_pointer_hash
, hash_table_pointer_compare
);
403 foreach_list_const(node
, in
) {
404 const ir_instruction
*const original
= (ir_instruction
*) node
;
405 ir_instruction
*copy
= original
->clone(ht
);
407 out
->push_tail(copy
);
410 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
411 * cloned ir_function_signature nodes. This cannot be done automatically
412 * during cloning because the ir_call might be a forward reference (i.e.,
413 * the function signature that it references may not have been cloned yet).
415 fixup_function_calls(ht
, out
);