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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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 * This will probably be made \c virtual and moved to the base class
45 ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
47 ir_variable *var = new(mem_ctx) ir_variable(this->type, this->name,
48 (ir_variable_mode) this->mode);
50 var->max_array_access = this->max_array_access;
51 var->read_only = this->read_only;
52 var->centroid = this->centroid;
53 var->invariant = this->invariant;
54 var->interpolation = this->interpolation;
55 var->location = this->location;
56 var->index = this->index;
57 var->warn_extension = this->warn_extension;
58 var->origin_upper_left = this->origin_upper_left;
59 var->pixel_center_integer = this->pixel_center_integer;
60 var->explicit_location = this->explicit_location;
61 var->explicit_index = this->explicit_index;
62 var->has_initializer = this->has_initializer;
63 var->depth_layout = this->depth_layout;
65 var->num_state_slots = this->num_state_slots;
66 if (this->state_slots) {
67 /* FINISHME: This really wants to use something like talloc_reference, but
68 * FINISHME: ralloc doesn't have any similar function.
70 var->state_slots = ralloc_array(var, ir_state_slot,
71 this->num_state_slots);
72 memcpy(var->state_slots, this->state_slots,
73 sizeof(this->state_slots[0]) * var->num_state_slots);
76 if (this->constant_value)
77 var->constant_value = this->constant_value->clone(mem_ctx, ht);
79 if (this->constant_initializer)
80 var->constant_initializer =
81 this->constant_initializer->clone(mem_ctx, ht);
84 hash_table_insert(ht, var, (void *)const_cast<ir_variable *>(this));
91 ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
93 return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
97 ir_return::clone(void *mem_ctx, struct hash_table *ht) const
99 ir_rvalue *new_value = NULL;
102 new_value = this->value->clone(mem_ctx, ht);
104 return new(mem_ctx) ir_return(new_value);
108 ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
110 ir_rvalue *new_condition = NULL;
112 if (this->condition != NULL)
113 new_condition = this->condition->clone(mem_ctx, ht);
115 return new(mem_ctx) ir_discard(new_condition);
119 ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
123 return new(mem_ctx) ir_loop_jump(this->mode);
127 ir_if::clone(void *mem_ctx, struct hash_table *ht) const
129 ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
131 foreach_iter(exec_list_iterator, iter, this->then_instructions) {
132 ir_instruction *ir = (ir_instruction *)iter.get();
133 new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
136 foreach_iter(exec_list_iterator, iter, this->else_instructions) {
137 ir_instruction *ir = (ir_instruction *)iter.get();
138 new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
145 ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
147 ir_loop *new_loop = new(mem_ctx) ir_loop();
150 new_loop->from = this->from->clone(mem_ctx, ht);
152 new_loop->to = this->to->clone(mem_ctx, ht);
154 new_loop->increment = this->increment->clone(mem_ctx, ht);
155 new_loop->counter = counter;
157 foreach_iter(exec_list_iterator, iter, this->body_instructions) {
158 ir_instruction *ir = (ir_instruction *)iter.get();
159 new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
162 new_loop->cmp = this->cmp;
167 ir_call::clone(void *mem_ctx, struct hash_table *ht) const
169 ir_dereference_variable *new_return_ref = NULL;
170 if (this->return_deref != NULL)
171 new_return_ref = this->return_deref->clone(mem_ctx, ht);
173 exec_list new_parameters;
175 foreach_iter(exec_list_iterator, iter, this->actual_parameters) {
176 ir_instruction *ir = (ir_instruction *)iter.get();
177 new_parameters.push_tail(ir->clone(mem_ctx, ht));
180 return new(mem_ctx) ir_call(this->callee, new_return_ref, &new_parameters);
184 ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
186 ir_rvalue *op[Elements(this->operands)] = { NULL, };
189 for (i = 0; i < get_num_operands(); i++) {
190 op[i] = this->operands[i]->clone(mem_ctx, ht);
193 return new(mem_ctx) ir_expression(this->operation, this->type,
194 op[0], op[1], op[2], op[3]);
197 ir_dereference_variable *
198 ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
200 ir_variable *new_var;
203 new_var = (ir_variable *)hash_table_find(ht, this->var);
210 return new(mem_ctx) ir_dereference_variable(new_var);
213 ir_dereference_array *
214 ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
216 return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
217 this->array_index->clone(mem_ctx,
221 ir_dereference_record *
222 ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
224 return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
229 ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
231 ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
232 new_tex->type = this->type;
234 new_tex->sampler = this->sampler->clone(mem_ctx, ht);
235 if (this->coordinate)
236 new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
238 new_tex->projector = this->projector->clone(mem_ctx, ht);
239 if (this->shadow_comparitor) {
240 new_tex->shadow_comparitor = this->shadow_comparitor->clone(mem_ctx, ht);
243 if (this->offset != NULL)
244 new_tex->offset = this->offset->clone(mem_ctx, ht);
250 new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
255 new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
258 new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
259 new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
267 ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
269 ir_rvalue *new_condition = NULL;
272 new_condition = this->condition->clone(mem_ctx, ht);
274 return new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
275 this->rhs->clone(mem_ctx, ht),
281 ir_function::clone(void *mem_ctx, struct hash_table *ht) const
283 ir_function *copy = new(mem_ctx) ir_function(this->name);
285 foreach_list_const(node, &this->signatures) {
286 const ir_function_signature *const sig =
287 (const ir_function_signature *const) node;
289 ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
290 copy->add_signature(sig_copy);
293 hash_table_insert(ht, sig_copy,
294 (void *)const_cast<ir_function_signature *>(sig));
300 ir_function_signature *
301 ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
303 ir_function_signature *copy = this->clone_prototype(mem_ctx, ht);
305 copy->is_defined = this->is_defined;
307 /* Clone the instruction list.
309 foreach_list_const(node, &this->body) {
310 const ir_instruction *const inst = (const ir_instruction *) node;
312 ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
313 copy->body.push_tail(inst_copy);
319 ir_function_signature *
320 ir_function_signature::clone_prototype(void *mem_ctx, struct hash_table *ht) const
322 ir_function_signature *copy =
323 new(mem_ctx) ir_function_signature(this->return_type);
325 copy->is_defined = false;
326 copy->is_builtin = this->is_builtin;
329 /* Clone the parameter list, but NOT the body.
331 foreach_list_const(node, &this->parameters) {
332 const ir_variable *const param = (const ir_variable *) node;
334 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
336 ir_variable *const param_copy = param->clone(mem_ctx, ht);
337 copy->parameters.push_tail(param_copy);
344 ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
348 switch (this->type->base_type) {
351 case GLSL_TYPE_FLOAT:
353 return new(mem_ctx) ir_constant(this->type, &this->value);
355 case GLSL_TYPE_STRUCT: {
356 ir_constant *c = new(mem_ctx) ir_constant;
358 c->type = this->type;
359 for (exec_node *node = this->components.head
360 ; !node->is_tail_sentinel()
361 ; node = node->next) {
362 ir_constant *const orig = (ir_constant *) node;
364 c->components.push_tail(orig->clone(mem_ctx, NULL));
370 case GLSL_TYPE_ARRAY: {
371 ir_constant *c = new(mem_ctx) ir_constant;
373 c->type = this->type;
374 c->array_elements = ralloc_array(c, ir_constant *, this->type->length);
375 for (unsigned i = 0; i < this->type->length; i++) {
376 c->array_elements[i] = this->array_elements[i]->clone(mem_ctx, NULL);
382 assert(!"Should not get here.");
388 class fixup_ir_call_visitor : public ir_hierarchical_visitor {
390 fixup_ir_call_visitor(struct hash_table *ht)
395 virtual ir_visitor_status visit_enter(ir_call *ir)
397 /* Try to find the function signature referenced by the ir_call in the
398 * table. If it is found, replace it with the value from the table.
400 ir_function_signature *sig =
401 (ir_function_signature *) hash_table_find(this->ht, ir->callee);
405 /* Since this may be used before function call parameters are flattened,
406 * the children also need to be processed.
408 return visit_continue;
412 struct hash_table *ht;
417 fixup_function_calls(struct hash_table *ht, exec_list *instructions)
419 fixup_ir_call_visitor v(ht);
425 clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
427 struct hash_table *ht =
428 hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
430 foreach_list_const(node, in) {
431 const ir_instruction *const original = (ir_instruction *) node;
432 ir_instruction *copy = original->clone(mem_ctx, ht);
434 out->push_tail(copy);
437 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
438 * cloned ir_function_signature nodes. This cannot be done automatically
439 * during cloning because the ir_call might be a forward reference (i.e.,
440 * the function signature that it references may not have been cloned yet).
442 fixup_function_calls(ht, out);