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 "program/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(void *mem_ctx
, struct hash_table
*ht
) const
41 ir_variable
*var
= new(mem_ctx
) ir_variable(this->type
, this->name
,
42 (ir_variable_mode
) this->mode
);
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
->interpolation
= this->interpolation
;
49 var
->array_lvalue
= this->array_lvalue
;
50 var
->location
= this->location
;
51 var
->warn_extension
= this->warn_extension
;
52 var
->origin_upper_left
= this->origin_upper_left
;
53 var
->pixel_center_integer
= this->pixel_center_integer
;
54 var
->explicit_location
= this->explicit_location
;
55 if (this->explicit_location
)
56 var
->location
= this->location
;
58 if (this->constant_value
)
59 var
->constant_value
= this->constant_value
->clone(mem_ctx
, ht
);
62 hash_table_insert(ht
, var
, (void *)const_cast<ir_variable
*>(this));
69 ir_swizzle::clone(void *mem_ctx
, struct hash_table
*ht
) const
71 return new(mem_ctx
) ir_swizzle(this->val
->clone(mem_ctx
, ht
), this->mask
);
75 ir_return::clone(void *mem_ctx
, struct hash_table
*ht
) const
77 ir_rvalue
*new_value
= NULL
;
80 new_value
= this->value
->clone(mem_ctx
, ht
);
82 return new(mem_ctx
) ir_return(new_value
);
86 ir_discard::clone(void *mem_ctx
, struct hash_table
*ht
) const
88 ir_rvalue
*new_condition
= NULL
;
90 if (this->condition
!= NULL
)
91 new_condition
= this->condition
->clone(mem_ctx
, ht
);
93 return new(mem_ctx
) ir_discard(new_condition
);
97 ir_loop_jump::clone(void *mem_ctx
, struct hash_table
*ht
) const
101 return new(mem_ctx
) ir_loop_jump(this->mode
);
105 ir_if::clone(void *mem_ctx
, struct hash_table
*ht
) const
107 ir_if
*new_if
= new(mem_ctx
) ir_if(this->condition
->clone(mem_ctx
, ht
));
109 foreach_iter(exec_list_iterator
, iter
, this->then_instructions
) {
110 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
111 new_if
->then_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
114 foreach_iter(exec_list_iterator
, iter
, this->else_instructions
) {
115 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
116 new_if
->else_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
123 ir_loop::clone(void *mem_ctx
, struct hash_table
*ht
) const
125 ir_loop
*new_loop
= new(mem_ctx
) ir_loop();
128 new_loop
->from
= this->from
->clone(mem_ctx
, ht
);
130 new_loop
->to
= this->to
->clone(mem_ctx
, ht
);
132 new_loop
->increment
= this->increment
->clone(mem_ctx
, ht
);
133 new_loop
->counter
= counter
;
135 foreach_iter(exec_list_iterator
, iter
, this->body_instructions
) {
136 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
137 new_loop
->body_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
140 new_loop
->cmp
= this->cmp
;
145 ir_call::clone(void *mem_ctx
, struct hash_table
*ht
) const
147 if (this->type
== glsl_type::error_type
)
148 return ir_call::get_error_instruction(mem_ctx
);
150 exec_list new_parameters
;
152 foreach_iter(exec_list_iterator
, iter
, this->actual_parameters
) {
153 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
154 new_parameters
.push_tail(ir
->clone(mem_ctx
, ht
));
157 return new(mem_ctx
) ir_call(this->callee
, &new_parameters
);
161 ir_expression::clone(void *mem_ctx
, struct hash_table
*ht
) const
163 ir_rvalue
*op
[2] = {NULL
, NULL
};
166 for (i
= 0; i
< get_num_operands(); i
++) {
167 op
[i
] = this->operands
[i
]->clone(mem_ctx
, ht
);
170 return new(mem_ctx
) ir_expression(this->operation
, this->type
, op
[0], op
[1]);
173 ir_dereference_variable
*
174 ir_dereference_variable::clone(void *mem_ctx
, struct hash_table
*ht
) const
176 ir_variable
*new_var
;
179 new_var
= (ir_variable
*)hash_table_find(ht
, this->var
);
186 return new(mem_ctx
) ir_dereference_variable(new_var
);
189 ir_dereference_array
*
190 ir_dereference_array::clone(void *mem_ctx
, struct hash_table
*ht
) const
192 return new(mem_ctx
) ir_dereference_array(this->array
->clone(mem_ctx
, ht
),
193 this->array_index
->clone(mem_ctx
,
197 ir_dereference_record
*
198 ir_dereference_record::clone(void *mem_ctx
, struct hash_table
*ht
) const
200 return new(mem_ctx
) ir_dereference_record(this->record
->clone(mem_ctx
, ht
),
205 ir_texture::clone(void *mem_ctx
, struct hash_table
*ht
) const
207 ir_texture
*new_tex
= new(mem_ctx
) ir_texture(this->op
);
208 new_tex
->type
= this->type
;
210 new_tex
->sampler
= this->sampler
->clone(mem_ctx
, ht
);
211 new_tex
->coordinate
= this->coordinate
->clone(mem_ctx
, ht
);
213 new_tex
->projector
= this->projector
->clone(mem_ctx
, ht
);
214 if (this->shadow_comparitor
) {
215 new_tex
->shadow_comparitor
= this->shadow_comparitor
->clone(mem_ctx
, ht
);
218 for (int i
= 0; i
< 3; i
++)
219 new_tex
->offsets
[i
] = this->offsets
[i
];
225 new_tex
->lod_info
.bias
= this->lod_info
.bias
->clone(mem_ctx
, ht
);
229 new_tex
->lod_info
.lod
= this->lod_info
.lod
->clone(mem_ctx
, ht
);
232 new_tex
->lod_info
.grad
.dPdx
= this->lod_info
.grad
.dPdx
->clone(mem_ctx
, ht
);
233 new_tex
->lod_info
.grad
.dPdy
= this->lod_info
.grad
.dPdy
->clone(mem_ctx
, ht
);
241 ir_assignment::clone(void *mem_ctx
, struct hash_table
*ht
) const
243 ir_rvalue
*new_condition
= NULL
;
246 new_condition
= this->condition
->clone(mem_ctx
, ht
);
248 return new(mem_ctx
) ir_assignment(this->lhs
->clone(mem_ctx
, ht
),
249 this->rhs
->clone(mem_ctx
, ht
),
255 ir_function::clone(void *mem_ctx
, struct hash_table
*ht
) const
257 ir_function
*copy
= new(mem_ctx
) ir_function(this->name
);
259 foreach_list_const(node
, &this->signatures
) {
260 const ir_function_signature
*const sig
=
261 (const ir_function_signature
*const) node
;
263 ir_function_signature
*sig_copy
= sig
->clone(mem_ctx
, ht
);
264 copy
->add_signature(sig_copy
);
267 hash_table_insert(ht
, sig_copy
,
268 (void *)const_cast<ir_function_signature
*>(sig
));
274 ir_function_signature
*
275 ir_function_signature::clone(void *mem_ctx
, struct hash_table
*ht
) const
277 ir_function_signature
*copy
=
278 new(mem_ctx
) ir_function_signature(this->return_type
);
280 copy
->is_defined
= this->is_defined
;
281 copy
->is_builtin
= this->is_builtin
;
283 /* Clone the parameter list.
285 foreach_list_const(node
, &this->parameters
) {
286 const ir_variable
*const param
= (const ir_variable
*) node
;
288 assert(const_cast<ir_variable
*>(param
)->as_variable() != NULL
);
290 ir_variable
*const param_copy
= param
->clone(mem_ctx
, ht
);
291 copy
->parameters
.push_tail(param_copy
);
294 /* Clone the instruction list.
296 foreach_list_const(node
, &this->body
) {
297 const ir_instruction
*const inst
= (const ir_instruction
*) node
;
299 ir_instruction
*const inst_copy
= inst
->clone(mem_ctx
, ht
);
300 copy
->body
.push_tail(inst_copy
);
307 ir_constant::clone(void *mem_ctx
, struct hash_table
*ht
) const
311 switch (this->type
->base_type
) {
314 case GLSL_TYPE_FLOAT
:
316 return new(mem_ctx
) ir_constant(this->type
, &this->value
);
318 case GLSL_TYPE_STRUCT
: {
319 ir_constant
*c
= new(mem_ctx
) ir_constant
;
321 c
->type
= this->type
;
322 for (exec_node
*node
= this->components
.head
323 ; !node
->is_tail_sentinel()
324 ; node
= node
->next
) {
325 ir_constant
*const orig
= (ir_constant
*) node
;
327 c
->components
.push_tail(orig
->clone(mem_ctx
, NULL
));
333 case GLSL_TYPE_ARRAY
: {
334 ir_constant
*c
= new(mem_ctx
) ir_constant
;
336 c
->type
= this->type
;
337 c
->array_elements
= talloc_array(c
, ir_constant
*, this->type
->length
);
338 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
339 c
->array_elements
[i
] = this->array_elements
[i
]->clone(mem_ctx
, NULL
);
345 assert(!"Should not get here.");
351 class fixup_ir_call_visitor
: public ir_hierarchical_visitor
{
353 fixup_ir_call_visitor(struct hash_table
*ht
)
358 virtual ir_visitor_status
visit_enter(ir_call
*ir
)
360 /* Try to find the function signature referenced by the ir_call in the
361 * table. If it is found, replace it with the value from the table.
363 ir_function_signature
*sig
=
364 (ir_function_signature
*) hash_table_find(this->ht
, ir
->get_callee());
368 /* Since this may be used before function call parameters are flattened,
369 * the children also need to be processed.
371 return visit_continue
;
375 struct hash_table
*ht
;
380 fixup_function_calls(struct hash_table
*ht
, exec_list
*instructions
)
382 fixup_ir_call_visitor
v(ht
);
388 clone_ir_list(void *mem_ctx
, exec_list
*out
, const exec_list
*in
)
390 struct hash_table
*ht
=
391 hash_table_ctor(0, hash_table_pointer_hash
, hash_table_pointer_compare
);
393 foreach_list_const(node
, in
) {
394 const ir_instruction
*const original
= (ir_instruction
*) node
;
395 ir_instruction
*copy
= original
->clone(mem_ctx
, ht
);
397 out
->push_tail(copy
);
400 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
401 * cloned ir_function_signature nodes. This cannot be done automatically
402 * during cloning because the ir_call might be a forward reference (i.e.,
403 * the function signature that it references may not have been cloned yet).
405 fixup_function_calls(ht
, out
);