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(type
, name
);
44 var
->max_array_access
= this->max_array_access
;
45 var
->read_only
= this->read_only
;
46 var
->centroid
= this->centroid
;
47 var
->invariant
= this->invariant
;
48 var
->shader_in
= this->shader_in
;
49 var
->shader_out
= this->shader_out
;
50 var
->mode
= this->mode
;
51 var
->interpolation
= this->interpolation
;
52 var
->array_lvalue
= this->array_lvalue
;
53 var
->location
= this->location
;
54 var
->warn_extension
= this->warn_extension
;
56 if (this->constant_value
)
57 var
->constant_value
= this->constant_value
->clone(ht
);
60 hash_table_insert(ht
, var
, (void *)const_cast<ir_variable
*>(this));
67 ir_swizzle::clone(struct hash_table
*ht
) const
69 void *ctx
= talloc_parent(this);
70 return new(ctx
) ir_swizzle((ir_rvalue
*)this->val
->clone(ht
), this->mask
);
74 ir_return::clone(struct hash_table
*ht
) const
76 void *ctx
= talloc_parent(this);
77 ir_rvalue
*new_value
= NULL
;
80 new_value
= (ir_rvalue
*)this->value
->clone(ht
);
82 return new(ctx
) ir_return(new_value
);
86 ir_discard::clone(struct hash_table
*ht
) const
88 void *ctx
= talloc_parent(this);
89 ir_rvalue
*new_condition
= NULL
;
91 if (this->condition
!= NULL
)
92 new_condition
= (ir_rvalue
*) this->condition
->clone(ht
);
94 return new(ctx
) ir_discard(new_condition
);
98 ir_loop_jump::clone(struct hash_table
*ht
) const
100 void *ctx
= talloc_parent(this);
103 return new(ctx
) ir_loop_jump(this->mode
);
107 ir_if::clone(struct hash_table
*ht
) const
109 void *ctx
= talloc_parent(this);
110 ir_if
*new_if
= new(ctx
) ir_if((ir_rvalue
*)this->condition
->clone(ht
));
112 foreach_iter(exec_list_iterator
, iter
, this->then_instructions
) {
113 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
114 new_if
->then_instructions
.push_tail(ir
->clone(ht
));
117 foreach_iter(exec_list_iterator
, iter
, this->else_instructions
) {
118 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
119 new_if
->else_instructions
.push_tail(ir
->clone(ht
));
126 ir_loop::clone(struct hash_table
*ht
) const
128 void *ctx
= talloc_parent(this);
129 ir_loop
*new_loop
= new(ctx
) ir_loop();
132 new_loop
->from
= (ir_rvalue
*)this->from
->clone(ht
);
134 new_loop
->to
= (ir_rvalue
*)this->to
->clone(ht
);
136 new_loop
->increment
= (ir_rvalue
*)this->increment
->clone(ht
);
137 new_loop
->counter
= counter
;
139 foreach_iter(exec_list_iterator
, iter
, this->body_instructions
) {
140 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
141 new_loop
->body_instructions
.push_tail(ir
->clone(ht
));
148 ir_call::clone(struct hash_table
*ht
) const
150 void *ctx
= talloc_parent(this);
151 exec_list new_parameters
;
153 foreach_iter(exec_list_iterator
, iter
, this->actual_parameters
) {
154 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
155 new_parameters
.push_tail(ir
->clone(ht
));
158 return new(ctx
) ir_call(this->callee
, &new_parameters
);
162 ir_expression::clone(struct hash_table
*ht
) const
164 void *ctx
= talloc_parent(this);
165 ir_rvalue
*op
[2] = {NULL
, NULL
};
168 for (i
= 0; i
< get_num_operands(); i
++) {
169 op
[i
] = (ir_rvalue
*)this->operands
[i
]->clone(ht
);
172 return new(ctx
) ir_expression(this->operation
, this->type
, op
[0], op
[1]);
175 ir_dereference_variable
*
176 ir_dereference_variable::clone(struct hash_table
*ht
) const
178 void *ctx
= talloc_parent(this);
179 ir_variable
*new_var
;
182 new_var
= (ir_variable
*)hash_table_find(ht
, this->var
);
189 return new(ctx
) ir_dereference_variable(new_var
);
192 ir_dereference_array
*
193 ir_dereference_array::clone(struct hash_table
*ht
) const
195 void *ctx
= talloc_parent(this);
196 return new(ctx
) ir_dereference_array((ir_rvalue
*)this->array
->clone(ht
),
197 (ir_rvalue
*)this->array_index
->clone(ht
));
200 ir_dereference_record
*
201 ir_dereference_record::clone(struct hash_table
*ht
) const
203 void *ctx
= talloc_parent(this);
204 return new(ctx
) ir_dereference_record((ir_rvalue
*)this->record
->clone(ht
),
209 ir_texture::clone(struct hash_table
*ht
) const
211 void *ctx
= talloc_parent(this);
212 ir_texture
*new_tex
= new(ctx
) ir_texture(this->op
);
214 new_tex
->sampler
= (ir_dereference
*)this->sampler
->clone(ht
);
215 new_tex
->coordinate
= (ir_rvalue
*)this->coordinate
->clone(ht
);
217 new_tex
->projector
= (ir_rvalue
*)this->projector
->clone(ht
);
218 if (this->shadow_comparitor
) {
219 new_tex
->shadow_comparitor
=
220 (ir_rvalue
*)this->shadow_comparitor
->clone(ht
);
223 for (int i
= 0; i
< 3; i
++)
224 new_tex
->offsets
[i
] = this->offsets
[i
];
230 new_tex
->lod_info
.bias
= (ir_rvalue
*)this->lod_info
.bias
->clone(ht
);
234 new_tex
->lod_info
.lod
= (ir_rvalue
*)this->lod_info
.lod
->clone(ht
);
237 new_tex
->lod_info
.grad
.dPdx
=
238 (ir_rvalue
*)this->lod_info
.grad
.dPdx
->clone(ht
);
239 new_tex
->lod_info
.grad
.dPdy
=
240 (ir_rvalue
*)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
= (ir_rvalue
*)this->condition
->clone(ht
);
255 void *ctx
= talloc_parent(this);
256 return new(ctx
) ir_assignment((ir_rvalue
*)this->lhs
->clone(ht
),
257 (ir_rvalue
*)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
;
291 /* Clone the parameter list.
293 foreach_list_const(node
, &this->parameters
) {
294 const ir_variable
*const param
= (const ir_variable
*) node
;
296 assert(const_cast<ir_variable
*>(param
)->as_variable() != NULL
);
298 ir_variable
*const param_copy
= param
->clone(ht
);
299 copy
->parameters
.push_tail(param_copy
);
302 /* Clone the instruction list.
304 foreach_list_const(node
, &this->body
) {
305 const ir_instruction
*const inst
= (const ir_instruction
*) node
;
307 ir_instruction
*const inst_copy
= inst
->clone(ht
);
308 copy
->body
.push_tail(inst_copy
);
315 ir_constant::clone(struct hash_table
*ht
) const
317 void *ctx
= talloc_parent(this);
320 switch (this->type
->base_type
) {
323 case GLSL_TYPE_FLOAT
:
325 return new(ctx
) ir_constant(this->type
, &this->value
);
327 case GLSL_TYPE_STRUCT
: {
328 ir_constant
*c
= new(ctx
) ir_constant
;
330 c
->type
= this->type
;
331 for (exec_node
*node
= this->components
.head
332 ; !node
->is_tail_sentinal()
333 ; node
= node
->next
) {
334 ir_constant
*const orig
= (ir_constant
*) node
;
336 c
->components
.push_tail(orig
->clone(NULL
));
343 assert(!"Should not get here."); break;
349 class fixup_ir_call_visitor
: public ir_hierarchical_visitor
{
351 fixup_ir_call_visitor(struct hash_table
*ht
)
356 virtual ir_visitor_status
visit_enter(ir_call
*ir
)
358 /* Try to find the function signature referenced by the ir_call in the
359 * table. If it is found, replace it with the value from the table.
361 const ir_function_signature
*const sig
=
362 (ir_function_signature
*) hash_table_find(this->ht
, ir
->get_callee());
366 /* Since this may be used before function call parameters are flattened,
367 * the children also need to be processed.
369 return visit_continue
;
373 struct hash_table
*ht
;
378 fixup_function_calls(struct hash_table
*ht
, exec_list
*instructions
)
380 fixup_ir_call_visitor
v(ht
);
386 clone_ir_list(exec_list
*out
, const exec_list
*in
)
388 struct hash_table
*ht
=
389 hash_table_ctor(0, hash_table_pointer_hash
, hash_table_pointer_compare
);
391 foreach_list_const(node
, in
) {
392 const ir_instruction
*const original
= (ir_instruction
*) node
;
393 ir_instruction
*copy
= original
->clone(ht
);
395 out
->push_tail(copy
);
398 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
399 * cloned ir_function_signature nodes. This cannot be done automatically
400 * during cloning because the ir_call might be a forward reference (i.e.,
401 * the function signature that it references may not have been cloned yet).
403 fixup_function_calls(ht
, out
);