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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;
55 if (this->constant_value)
56 var->constant_value = this->constant_value->clone(mem_ctx, ht);
59 hash_table_insert(ht, var, (void *)const_cast<ir_variable *>(this));
66 ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
68 return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
72 ir_return::clone(void *mem_ctx, struct hash_table *ht) const
74 ir_rvalue *new_value = NULL;
77 new_value = this->value->clone(mem_ctx, ht);
79 return new(mem_ctx) ir_return(new_value);
83 ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
85 ir_rvalue *new_condition = NULL;
87 if (this->condition != NULL)
88 new_condition = this->condition->clone(mem_ctx, ht);
90 return new(mem_ctx) ir_discard(new_condition);
94 ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
98 return new(mem_ctx) ir_loop_jump(this->mode);
102 ir_if::clone(void *mem_ctx, struct hash_table *ht) const
104 ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
106 foreach_iter(exec_list_iterator, iter, this->then_instructions) {
107 ir_instruction *ir = (ir_instruction *)iter.get();
108 new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
111 foreach_iter(exec_list_iterator, iter, this->else_instructions) {
112 ir_instruction *ir = (ir_instruction *)iter.get();
113 new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
120 ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
122 ir_loop *new_loop = new(mem_ctx) ir_loop();
125 new_loop->from = this->from->clone(mem_ctx, ht);
127 new_loop->to = this->to->clone(mem_ctx, ht);
129 new_loop->increment = this->increment->clone(mem_ctx, ht);
130 new_loop->counter = counter;
132 foreach_iter(exec_list_iterator, iter, this->body_instructions) {
133 ir_instruction *ir = (ir_instruction *)iter.get();
134 new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
141 ir_call::clone(void *mem_ctx, struct hash_table *ht) const
143 exec_list new_parameters;
145 foreach_iter(exec_list_iterator, iter, this->actual_parameters) {
146 ir_instruction *ir = (ir_instruction *)iter.get();
147 new_parameters.push_tail(ir->clone(mem_ctx, ht));
150 return new(mem_ctx) ir_call(this->callee, &new_parameters);
154 ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
156 ir_rvalue *op[2] = {NULL, NULL};
159 for (i = 0; i < get_num_operands(); i++) {
160 op[i] = this->operands[i]->clone(mem_ctx, ht);
163 return new(mem_ctx) ir_expression(this->operation, this->type, op[0], op[1]);
166 ir_dereference_variable *
167 ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
169 ir_variable *new_var;
172 new_var = (ir_variable *)hash_table_find(ht, this->var);
179 return new(mem_ctx) ir_dereference_variable(new_var);
182 ir_dereference_array *
183 ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
185 return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
186 this->array_index->clone(mem_ctx,
190 ir_dereference_record *
191 ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
193 return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
198 ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
200 ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
201 new_tex->type = this->type;
203 new_tex->sampler = this->sampler->clone(mem_ctx, ht);
204 new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
206 new_tex->projector = this->projector->clone(mem_ctx, ht);
207 if (this->shadow_comparitor) {
208 new_tex->shadow_comparitor = this->shadow_comparitor->clone(mem_ctx, ht);
211 for (int i = 0; i < 3; i++)
212 new_tex->offsets[i] = this->offsets[i];
218 new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
222 new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
225 new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
226 new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
234 ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
236 ir_rvalue *new_condition = NULL;
239 new_condition = this->condition->clone(mem_ctx, ht);
241 return new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
242 this->rhs->clone(mem_ctx, ht),
248 ir_function::clone(void *mem_ctx, struct hash_table *ht) const
250 ir_function *copy = new(mem_ctx) ir_function(this->name);
252 foreach_list_const(node, &this->signatures) {
253 const ir_function_signature *const sig =
254 (const ir_function_signature *const) node;
256 ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
257 copy->add_signature(sig_copy);
260 hash_table_insert(ht, sig_copy,
261 (void *)const_cast<ir_function_signature *>(sig));
267 ir_function_signature *
268 ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
270 ir_function_signature *copy =
271 new(mem_ctx) ir_function_signature(this->return_type);
273 copy->is_defined = this->is_defined;
274 copy->is_built_in = this->is_built_in;
276 /* Clone the parameter list.
278 foreach_list_const(node, &this->parameters) {
279 const ir_variable *const param = (const ir_variable *) node;
281 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
283 ir_variable *const param_copy = param->clone(mem_ctx, ht);
284 copy->parameters.push_tail(param_copy);
287 /* Clone the instruction list.
289 foreach_list_const(node, &this->body) {
290 const ir_instruction *const inst = (const ir_instruction *) node;
292 ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
293 copy->body.push_tail(inst_copy);
300 ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
304 switch (this->type->base_type) {
307 case GLSL_TYPE_FLOAT:
309 return new(mem_ctx) ir_constant(this->type, &this->value);
311 case GLSL_TYPE_STRUCT: {
312 ir_constant *c = new(mem_ctx) ir_constant;
314 c->type = this->type;
315 for (exec_node *node = this->components.head
316 ; !node->is_tail_sentinel()
317 ; node = node->next) {
318 ir_constant *const orig = (ir_constant *) node;
320 c->components.push_tail(orig->clone(mem_ctx, NULL));
326 case GLSL_TYPE_ARRAY: {
327 ir_constant *c = new(mem_ctx) ir_constant;
329 c->type = this->type;
330 c->array_elements = talloc_array(c, ir_constant *, this->type->length);
331 for (unsigned i = 0; i < this->type->length; i++) {
332 c->array_elements[i] = this->array_elements[i]->clone(mem_ctx, NULL);
338 assert(!"Should not get here.");
344 class fixup_ir_call_visitor : public ir_hierarchical_visitor {
346 fixup_ir_call_visitor(struct hash_table *ht)
351 virtual ir_visitor_status visit_enter(ir_call *ir)
353 /* Try to find the function signature referenced by the ir_call in the
354 * table. If it is found, replace it with the value from the table.
356 ir_function_signature *sig =
357 (ir_function_signature *) hash_table_find(this->ht, ir->get_callee());
361 /* Since this may be used before function call parameters are flattened,
362 * the children also need to be processed.
364 return visit_continue;
368 struct hash_table *ht;
373 fixup_function_calls(struct hash_table *ht, exec_list *instructions)
375 fixup_ir_call_visitor v(ht);
381 clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
383 struct hash_table *ht =
384 hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
386 foreach_list_const(node, in) {
387 const ir_instruction *const original = (ir_instruction *) node;
388 ir_instruction *copy = original->clone(mem_ctx, ht);
390 out->push_tail(copy);
393 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
394 * cloned ir_function_signature nodes. This cannot be done automatically
395 * during cloning because the ir_call might be a forward reference (i.e.,
396 * the function signature that it references may not have been cloned yet).
398 fixup_function_calls(ht, out);