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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(this->type, this->name,
43 (ir_variable_mode) this->mode);
45 var->max_array_access = this->max_array_access;
46 var->read_only = this->read_only;
47 var->centroid = this->centroid;
48 var->invariant = this->invariant;
49 var->shader_in = this->shader_in;
50 var->shader_out = this->shader_out;
51 var->interpolation = this->interpolation;
52 var->array_lvalue = this->array_lvalue;
53 var->location = this->location;
54 var->warn_extension = this->warn_extension;
55 var->origin_upper_left = this->origin_upper_left;
56 var->pixel_center_integer = this->pixel_center_integer;
58 if (this->constant_value)
59 var->constant_value = this->constant_value->clone(ht);
62 hash_table_insert(ht, var, (void *)const_cast<ir_variable *>(this));
69 ir_swizzle::clone(struct hash_table *ht) const
71 void *ctx = talloc_parent(this);
72 return new(ctx) ir_swizzle(this->val->clone(ht), this->mask);
76 ir_return::clone(struct hash_table *ht) const
78 void *ctx = talloc_parent(this);
79 ir_rvalue *new_value = NULL;
82 new_value = this->value->clone(ht);
84 return new(ctx) ir_return(new_value);
88 ir_discard::clone(struct hash_table *ht) const
90 void *ctx = talloc_parent(this);
91 ir_rvalue *new_condition = NULL;
93 if (this->condition != NULL)
94 new_condition = this->condition->clone(ht);
96 return new(ctx) ir_discard(new_condition);
100 ir_loop_jump::clone(struct hash_table *ht) const
102 void *ctx = talloc_parent(this);
105 return new(ctx) ir_loop_jump(this->mode);
109 ir_if::clone(struct hash_table *ht) const
111 void *ctx = talloc_parent(this);
112 ir_if *new_if = new(ctx) ir_if(this->condition->clone(ht));
114 foreach_iter(exec_list_iterator, iter, this->then_instructions) {
115 ir_instruction *ir = (ir_instruction *)iter.get();
116 new_if->then_instructions.push_tail(ir->clone(ht));
119 foreach_iter(exec_list_iterator, iter, this->else_instructions) {
120 ir_instruction *ir = (ir_instruction *)iter.get();
121 new_if->else_instructions.push_tail(ir->clone(ht));
128 ir_loop::clone(struct hash_table *ht) const
130 void *ctx = talloc_parent(this);
131 ir_loop *new_loop = new(ctx) ir_loop();
134 new_loop->from = this->from->clone(ht);
136 new_loop->to = this->to->clone(ht);
138 new_loop->increment = this->increment->clone(ht);
139 new_loop->counter = counter;
141 foreach_iter(exec_list_iterator, iter, this->body_instructions) {
142 ir_instruction *ir = (ir_instruction *)iter.get();
143 new_loop->body_instructions.push_tail(ir->clone(ht));
150 ir_call::clone(struct hash_table *ht) const
152 void *ctx = talloc_parent(this);
153 exec_list new_parameters;
155 foreach_iter(exec_list_iterator, iter, this->actual_parameters) {
156 ir_instruction *ir = (ir_instruction *)iter.get();
157 new_parameters.push_tail(ir->clone(ht));
160 return new(ctx) ir_call(this->callee, &new_parameters);
164 ir_expression::clone(struct hash_table *ht) const
166 void *ctx = talloc_parent(this);
167 ir_rvalue *op[2] = {NULL, NULL};
170 for (i = 0; i < get_num_operands(); i++) {
171 op[i] = this->operands[i]->clone(ht);
174 return new(ctx) ir_expression(this->operation, this->type, op[0], op[1]);
177 ir_dereference_variable *
178 ir_dereference_variable::clone(struct hash_table *ht) const
180 void *ctx = talloc_parent(this);
181 ir_variable *new_var;
184 new_var = (ir_variable *)hash_table_find(ht, this->var);
191 return new(ctx) ir_dereference_variable(new_var);
194 ir_dereference_array *
195 ir_dereference_array::clone(struct hash_table *ht) const
197 void *ctx = talloc_parent(this);
198 return new(ctx) ir_dereference_array(this->array->clone(ht),
199 this->array_index->clone(ht));
202 ir_dereference_record *
203 ir_dereference_record::clone(struct hash_table *ht) const
205 void *ctx = talloc_parent(this);
206 return new(ctx) ir_dereference_record(this->record->clone(ht),
211 ir_texture::clone(struct hash_table *ht) const
213 void *ctx = talloc_parent(this);
214 ir_texture *new_tex = new(ctx) ir_texture(this->op);
215 new_tex->type = this->type;
217 new_tex->sampler = this->sampler->clone(ht);
218 new_tex->coordinate = this->coordinate->clone(ht);
220 new_tex->projector = this->projector->clone(ht);
221 if (this->shadow_comparitor) {
222 new_tex->shadow_comparitor = this->shadow_comparitor->clone(ht);
225 for (int i = 0; i < 3; i++)
226 new_tex->offsets[i] = this->offsets[i];
232 new_tex->lod_info.bias = this->lod_info.bias->clone(ht);
236 new_tex->lod_info.lod = this->lod_info.lod->clone(ht);
239 new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(ht);
240 new_tex->lod_info.grad.dPdy = 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 = this->condition->clone(ht);
255 void *ctx = talloc_parent(this);
256 return new(ctx) ir_assignment(this->lhs->clone(ht),
257 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;
290 copy->is_built_in = this->is_built_in;
292 /* Clone the parameter list.
294 foreach_list_const(node, &this->parameters) {
295 const ir_variable *const param = (const ir_variable *) node;
297 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
299 ir_variable *const param_copy = param->clone(ht);
300 copy->parameters.push_tail(param_copy);
303 /* Clone the instruction list.
305 foreach_list_const(node, &this->body) {
306 const ir_instruction *const inst = (const ir_instruction *) node;
308 ir_instruction *const inst_copy = inst->clone(ht);
309 copy->body.push_tail(inst_copy);
316 ir_constant::clone(struct hash_table *ht) const
318 void *ctx = talloc_parent(this);
321 switch (this->type->base_type) {
324 case GLSL_TYPE_FLOAT:
326 return new(ctx) ir_constant(this->type, &this->value);
328 case GLSL_TYPE_STRUCT: {
329 ir_constant *c = new(ctx) ir_constant;
331 c->type = this->type;
332 for (exec_node *node = this->components.head
333 ; !node->is_tail_sentinel()
334 ; node = node->next) {
335 ir_constant *const orig = (ir_constant *) node;
337 c->components.push_tail(orig->clone(NULL));
343 case GLSL_TYPE_ARRAY: {
344 ir_constant *c = new(ctx) ir_constant;
346 c->type = this->type;
347 c->array_elements = talloc_array(c, ir_constant *, this->type->length);
348 for (unsigned i = 0; i < this->type->length; i++) {
349 c->array_elements[i] = this->array_elements[i]->clone(NULL);
355 assert(!"Should not get here."); break;
361 class fixup_ir_call_visitor : public ir_hierarchical_visitor {
363 fixup_ir_call_visitor(struct hash_table *ht)
368 virtual ir_visitor_status visit_enter(ir_call *ir)
370 /* Try to find the function signature referenced by the ir_call in the
371 * table. If it is found, replace it with the value from the table.
373 ir_function_signature *sig =
374 (ir_function_signature *) hash_table_find(this->ht, ir->get_callee());
378 /* Since this may be used before function call parameters are flattened,
379 * the children also need to be processed.
381 return visit_continue;
385 struct hash_table *ht;
390 fixup_function_calls(struct hash_table *ht, exec_list *instructions)
392 fixup_ir_call_visitor v(ht);
398 clone_ir_list(exec_list *out, const exec_list *in)
400 struct hash_table *ht =
401 hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
403 foreach_list_const(node, in) {
404 const ir_instruction *const original = (ir_instruction *) node;
405 ir_instruction *copy = original->clone(ht);
407 out->push_tail(copy);
410 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
411 * cloned ir_function_signature nodes. This cannot be done automatically
412 * during cloning because the ir_call might be a forward reference (i.e.,
413 * the function signature that it references may not have been cloned yet).
415 fixup_function_calls(ht, out);