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.
25 #include "main/compiler.h"
27 #include "glsl_types.h"
28 #include "program/hash_table.h"
31 ir_rvalue::clone(void *mem_ctx
, struct hash_table
*ht
) const
33 /* The only possible instantiation is the generic error value. */
34 return error_value(mem_ctx
);
38 * Duplicate an IR variable
41 ir_variable::clone(void *mem_ctx
, struct hash_table
*ht
) const
43 ir_variable
*var
= new(mem_ctx
) ir_variable(this->type
, this->name
,
44 (ir_variable_mode
) this->data
.mode
);
46 var
->data
.max_array_access
= this->data
.max_array_access
;
47 if (this->is_interface_instance()) {
48 var
->max_ifc_array_access
=
49 rzalloc_array(var
, unsigned, this->interface_type
->length
);
50 memcpy(var
->max_ifc_array_access
, this->max_ifc_array_access
,
51 this->interface_type
->length
* sizeof(unsigned));
53 var
->data
.read_only
= this->data
.read_only
;
54 var
->data
.centroid
= this->data
.centroid
;
55 var
->data
.sample
= this->data
.sample
;
56 var
->data
.invariant
= this->data
.invariant
;
57 var
->data
.interpolation
= this->data
.interpolation
;
58 var
->data
.location
= this->data
.location
;
59 var
->data
.index
= this->data
.index
;
60 var
->data
.binding
= this->data
.binding
;
61 var
->data
.atomic
.buffer_index
= this->data
.atomic
.buffer_index
;
62 var
->data
.atomic
.offset
= this->data
.atomic
.offset
;
63 var
->warn_extension
= this->warn_extension
;
64 var
->data
.origin_upper_left
= this->data
.origin_upper_left
;
65 var
->data
.pixel_center_integer
= this->data
.pixel_center_integer
;
66 var
->data
.explicit_location
= this->data
.explicit_location
;
67 var
->data
.explicit_index
= this->data
.explicit_index
;
68 var
->data
.explicit_binding
= this->data
.explicit_binding
;
69 var
->data
.has_initializer
= this->data
.has_initializer
;
70 var
->data
.depth_layout
= this->data
.depth_layout
;
71 var
->data
.assigned
= this->data
.assigned
;
72 var
->data
.how_declared
= this->data
.how_declared
;
73 var
->data
.used
= this->data
.used
;
75 var
->num_state_slots
= this->num_state_slots
;
76 if (this->state_slots
) {
77 /* FINISHME: This really wants to use something like talloc_reference, but
78 * FINISHME: ralloc doesn't have any similar function.
80 var
->state_slots
= ralloc_array(var
, ir_state_slot
,
81 this->num_state_slots
);
82 memcpy(var
->state_slots
, this->state_slots
,
83 sizeof(this->state_slots
[0]) * var
->num_state_slots
);
86 if (this->constant_value
)
87 var
->constant_value
= this->constant_value
->clone(mem_ctx
, ht
);
89 if (this->constant_initializer
)
90 var
->constant_initializer
=
91 this->constant_initializer
->clone(mem_ctx
, ht
);
93 var
->interface_type
= this->interface_type
;
96 hash_table_insert(ht
, var
, (void *)const_cast<ir_variable
*>(this));
103 ir_swizzle::clone(void *mem_ctx
, struct hash_table
*ht
) const
105 return new(mem_ctx
) ir_swizzle(this->val
->clone(mem_ctx
, ht
), this->mask
);
109 ir_return::clone(void *mem_ctx
, struct hash_table
*ht
) const
111 ir_rvalue
*new_value
= NULL
;
114 new_value
= this->value
->clone(mem_ctx
, ht
);
116 return new(mem_ctx
) ir_return(new_value
);
120 ir_discard::clone(void *mem_ctx
, struct hash_table
*ht
) const
122 ir_rvalue
*new_condition
= NULL
;
124 if (this->condition
!= NULL
)
125 new_condition
= this->condition
->clone(mem_ctx
, ht
);
127 return new(mem_ctx
) ir_discard(new_condition
);
131 ir_loop_jump::clone(void *mem_ctx
, struct hash_table
*ht
) const
135 return new(mem_ctx
) ir_loop_jump(this->mode
);
139 ir_if::clone(void *mem_ctx
, struct hash_table
*ht
) const
141 ir_if
*new_if
= new(mem_ctx
) ir_if(this->condition
->clone(mem_ctx
, ht
));
143 foreach_iter(exec_list_iterator
, iter
, this->then_instructions
) {
144 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
145 new_if
->then_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
148 foreach_iter(exec_list_iterator
, iter
, this->else_instructions
) {
149 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
150 new_if
->else_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
157 ir_loop::clone(void *mem_ctx
, struct hash_table
*ht
) const
159 ir_loop
*new_loop
= new(mem_ctx
) ir_loop();
161 foreach_iter(exec_list_iterator
, iter
, this->body_instructions
) {
162 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
163 new_loop
->body_instructions
.push_tail(ir
->clone(mem_ctx
, ht
));
170 ir_call::clone(void *mem_ctx
, struct hash_table
*ht
) const
172 ir_dereference_variable
*new_return_ref
= NULL
;
173 if (this->return_deref
!= NULL
)
174 new_return_ref
= this->return_deref
->clone(mem_ctx
, ht
);
176 exec_list new_parameters
;
178 foreach_iter(exec_list_iterator
, iter
, this->actual_parameters
) {
179 ir_instruction
*ir
= (ir_instruction
*)iter
.get();
180 new_parameters
.push_tail(ir
->clone(mem_ctx
, ht
));
183 return new(mem_ctx
) ir_call(this->callee
, new_return_ref
, &new_parameters
);
187 ir_expression::clone(void *mem_ctx
, struct hash_table
*ht
) const
189 ir_rvalue
*op
[Elements(this->operands
)] = { NULL
, };
192 for (i
= 0; i
< get_num_operands(); i
++) {
193 op
[i
] = this->operands
[i
]->clone(mem_ctx
, ht
);
196 return new(mem_ctx
) ir_expression(this->operation
, this->type
,
197 op
[0], op
[1], op
[2], op
[3]);
200 ir_dereference_variable
*
201 ir_dereference_variable::clone(void *mem_ctx
, struct hash_table
*ht
) const
203 ir_variable
*new_var
;
206 new_var
= (ir_variable
*)hash_table_find(ht
, this->var
);
213 return new(mem_ctx
) ir_dereference_variable(new_var
);
216 ir_dereference_array
*
217 ir_dereference_array::clone(void *mem_ctx
, struct hash_table
*ht
) const
219 return new(mem_ctx
) ir_dereference_array(this->array
->clone(mem_ctx
, ht
),
220 this->array_index
->clone(mem_ctx
,
224 ir_dereference_record
*
225 ir_dereference_record::clone(void *mem_ctx
, struct hash_table
*ht
) const
227 return new(mem_ctx
) ir_dereference_record(this->record
->clone(mem_ctx
, ht
),
232 ir_texture::clone(void *mem_ctx
, struct hash_table
*ht
) const
234 ir_texture
*new_tex
= new(mem_ctx
) ir_texture(this->op
);
235 new_tex
->type
= this->type
;
237 new_tex
->sampler
= this->sampler
->clone(mem_ctx
, ht
);
238 if (this->coordinate
)
239 new_tex
->coordinate
= this->coordinate
->clone(mem_ctx
, ht
);
241 new_tex
->projector
= this->projector
->clone(mem_ctx
, ht
);
242 if (this->shadow_comparitor
) {
243 new_tex
->shadow_comparitor
= this->shadow_comparitor
->clone(mem_ctx
, ht
);
246 if (this->offset
!= NULL
)
247 new_tex
->offset
= this->offset
->clone(mem_ctx
, ht
);
252 case ir_query_levels
:
255 new_tex
->lod_info
.bias
= this->lod_info
.bias
->clone(mem_ctx
, ht
);
260 new_tex
->lod_info
.lod
= this->lod_info
.lod
->clone(mem_ctx
, ht
);
263 new_tex
->lod_info
.sample_index
= this->lod_info
.sample_index
->clone(mem_ctx
, ht
);
266 new_tex
->lod_info
.grad
.dPdx
= this->lod_info
.grad
.dPdx
->clone(mem_ctx
, ht
);
267 new_tex
->lod_info
.grad
.dPdy
= this->lod_info
.grad
.dPdy
->clone(mem_ctx
, ht
);
270 new_tex
->lod_info
.component
= this->lod_info
.component
->clone(mem_ctx
, ht
);
278 ir_assignment::clone(void *mem_ctx
, struct hash_table
*ht
) const
280 ir_rvalue
*new_condition
= NULL
;
283 new_condition
= this->condition
->clone(mem_ctx
, ht
);
285 return new(mem_ctx
) ir_assignment(this->lhs
->clone(mem_ctx
, ht
),
286 this->rhs
->clone(mem_ctx
, ht
),
292 ir_function::clone(void *mem_ctx
, struct hash_table
*ht
) const
294 ir_function
*copy
= new(mem_ctx
) ir_function(this->name
);
296 foreach_list_const(node
, &this->signatures
) {
297 const ir_function_signature
*const sig
=
298 (const ir_function_signature
*const) node
;
300 ir_function_signature
*sig_copy
= sig
->clone(mem_ctx
, ht
);
301 copy
->add_signature(sig_copy
);
304 hash_table_insert(ht
, sig_copy
,
305 (void *)const_cast<ir_function_signature
*>(sig
));
311 ir_function_signature
*
312 ir_function_signature::clone(void *mem_ctx
, struct hash_table
*ht
) const
314 ir_function_signature
*copy
= this->clone_prototype(mem_ctx
, ht
);
316 copy
->is_defined
= this->is_defined
;
318 /* Clone the instruction list.
320 foreach_list_const(node
, &this->body
) {
321 const ir_instruction
*const inst
= (const ir_instruction
*) node
;
323 ir_instruction
*const inst_copy
= inst
->clone(mem_ctx
, ht
);
324 copy
->body
.push_tail(inst_copy
);
330 ir_function_signature
*
331 ir_function_signature::clone_prototype(void *mem_ctx
, struct hash_table
*ht
) const
333 ir_function_signature
*copy
=
334 new(mem_ctx
) ir_function_signature(this->return_type
);
336 copy
->is_defined
= false;
337 copy
->builtin_avail
= this->builtin_avail
;
340 /* Clone the parameter list, but NOT the body.
342 foreach_list_const(node
, &this->parameters
) {
343 const ir_variable
*const param
= (const ir_variable
*) node
;
345 assert(const_cast<ir_variable
*>(param
)->as_variable() != NULL
);
347 ir_variable
*const param_copy
= param
->clone(mem_ctx
, ht
);
348 copy
->parameters
.push_tail(param_copy
);
355 ir_constant::clone(void *mem_ctx
, struct hash_table
*ht
) const
359 switch (this->type
->base_type
) {
362 case GLSL_TYPE_FLOAT
:
364 return new(mem_ctx
) ir_constant(this->type
, &this->value
);
366 case GLSL_TYPE_STRUCT
: {
367 ir_constant
*c
= new(mem_ctx
) ir_constant
;
369 c
->type
= this->type
;
370 for (exec_node
*node
= this->components
.head
371 ; !node
->is_tail_sentinel()
372 ; node
= node
->next
) {
373 ir_constant
*const orig
= (ir_constant
*) node
;
375 c
->components
.push_tail(orig
->clone(mem_ctx
, NULL
));
381 case GLSL_TYPE_ARRAY
: {
382 ir_constant
*c
= new(mem_ctx
) ir_constant
;
384 c
->type
= this->type
;
385 c
->array_elements
= ralloc_array(c
, ir_constant
*, this->type
->length
);
386 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
387 c
->array_elements
[i
] = this->array_elements
[i
]->clone(mem_ctx
, NULL
);
392 case GLSL_TYPE_SAMPLER
:
393 case GLSL_TYPE_ATOMIC_UINT
:
395 case GLSL_TYPE_ERROR
:
396 case GLSL_TYPE_INTERFACE
:
397 assert(!"Should not get here.");
405 class fixup_ir_call_visitor
: public ir_hierarchical_visitor
{
407 fixup_ir_call_visitor(struct hash_table
*ht
)
412 virtual ir_visitor_status
visit_enter(ir_call
*ir
)
414 /* Try to find the function signature referenced by the ir_call in the
415 * table. If it is found, replace it with the value from the table.
417 ir_function_signature
*sig
=
418 (ir_function_signature
*) hash_table_find(this->ht
, ir
->callee
);
422 /* Since this may be used before function call parameters are flattened,
423 * the children also need to be processed.
425 return visit_continue
;
429 struct hash_table
*ht
;
434 fixup_function_calls(struct hash_table
*ht
, exec_list
*instructions
)
436 fixup_ir_call_visitor
v(ht
);
442 clone_ir_list(void *mem_ctx
, exec_list
*out
, const exec_list
*in
)
444 struct hash_table
*ht
=
445 hash_table_ctor(0, hash_table_pointer_hash
, hash_table_pointer_compare
);
447 foreach_list_const(node
, in
) {
448 const ir_instruction
*const original
= (ir_instruction
*) node
;
449 ir_instruction
*copy
= original
->clone(mem_ctx
, ht
);
451 out
->push_tail(copy
);
454 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
455 * cloned ir_function_signature nodes. This cannot be done automatically
456 * during cloning because the ir_call might be a forward reference (i.e.,
457 * the function signature that it references may not have been cloned yet).
459 fixup_function_calls(ht
, out
);