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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
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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,
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21 * DEALINGS IN THE SOFTWARE.
25 #include "main/compiler.h"
27 #include "glsl_types.h"
29 #include "program/hash_table.h"
33 * Duplicate an IR variable
36 * This will probably be made \c virtual and moved to the base class
40 ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
42 ir_variable *var = new(mem_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->interpolation = this->interpolation;
50 var->array_lvalue = this->array_lvalue;
51 var->location = this->location;
52 var->warn_extension = this->warn_extension;
53 var->origin_upper_left = this->origin_upper_left;
54 var->pixel_center_integer = this->pixel_center_integer;
55 var->explicit_location = this->explicit_location;
56 if (this->explicit_location)
57 var->location = this->location;
59 if (this->constant_value)
60 var->constant_value = this->constant_value->clone(mem_ctx, ht);
63 hash_table_insert(ht, var, (void *)const_cast<ir_variable *>(this));
70 ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
72 return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
76 ir_return::clone(void *mem_ctx, struct hash_table *ht) const
78 ir_rvalue *new_value = NULL;
81 new_value = this->value->clone(mem_ctx, ht);
83 return new(mem_ctx) ir_return(new_value);
87 ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
89 ir_rvalue *new_condition = NULL;
91 if (this->condition != NULL)
92 new_condition = this->condition->clone(mem_ctx, ht);
94 return new(mem_ctx) ir_discard(new_condition);
98 ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
102 return new(mem_ctx) ir_loop_jump(this->mode);
106 ir_if::clone(void *mem_ctx, struct hash_table *ht) const
108 ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
110 foreach_iter(exec_list_iterator, iter, this->then_instructions) {
111 ir_instruction *ir = (ir_instruction *)iter.get();
112 new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
115 foreach_iter(exec_list_iterator, iter, this->else_instructions) {
116 ir_instruction *ir = (ir_instruction *)iter.get();
117 new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
124 ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
126 ir_loop *new_loop = new(mem_ctx) ir_loop();
129 new_loop->from = this->from->clone(mem_ctx, ht);
131 new_loop->to = this->to->clone(mem_ctx, ht);
133 new_loop->increment = this->increment->clone(mem_ctx, ht);
134 new_loop->counter = counter;
136 foreach_iter(exec_list_iterator, iter, this->body_instructions) {
137 ir_instruction *ir = (ir_instruction *)iter.get();
138 new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
141 new_loop->cmp = this->cmp;
146 ir_call::clone(void *mem_ctx, struct hash_table *ht) const
148 if (this->type == glsl_type::error_type)
149 return ir_call::get_error_instruction(mem_ctx);
151 exec_list new_parameters;
153 foreach_iter(exec_list_iterator, iter, this->actual_parameters) {
154 ir_instruction *ir = (ir_instruction *)iter.get();
155 new_parameters.push_tail(ir->clone(mem_ctx, ht));
158 return new(mem_ctx) ir_call(this->callee, &new_parameters);
162 ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
164 ir_rvalue *op[Elements(this->operands)] = { NULL, };
167 for (i = 0; i < get_num_operands(); i++) {
168 op[i] = this->operands[i]->clone(mem_ctx, ht);
171 return new(mem_ctx) ir_expression(this->operation, this->type,
172 op[0], op[1], op[2], op[3]);
175 ir_dereference_variable *
176 ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
178 ir_variable *new_var;
181 new_var = (ir_variable *)hash_table_find(ht, this->var);
188 return new(mem_ctx) ir_dereference_variable(new_var);
191 ir_dereference_array *
192 ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
194 return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
195 this->array_index->clone(mem_ctx,
199 ir_dereference_record *
200 ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
202 return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
207 ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
209 ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
210 new_tex->type = this->type;
212 new_tex->sampler = this->sampler->clone(mem_ctx, ht);
213 new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
215 new_tex->projector = this->projector->clone(mem_ctx, ht);
216 if (this->shadow_comparitor) {
217 new_tex->shadow_comparitor = this->shadow_comparitor->clone(mem_ctx, ht);
220 for (int i = 0; i < 3; i++)
221 new_tex->offsets[i] = this->offsets[i];
227 new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
231 new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
234 new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
235 new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
243 ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
245 ir_rvalue *new_condition = NULL;
248 new_condition = this->condition->clone(mem_ctx, ht);
250 return new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
251 this->rhs->clone(mem_ctx, ht),
257 ir_function::clone(void *mem_ctx, struct hash_table *ht) const
259 ir_function *copy = new(mem_ctx) ir_function(this->name);
261 foreach_list_const(node, &this->signatures) {
262 const ir_function_signature *const sig =
263 (const ir_function_signature *const) node;
265 ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
266 copy->add_signature(sig_copy);
269 hash_table_insert(ht, sig_copy,
270 (void *)const_cast<ir_function_signature *>(sig));
276 ir_function_signature *
277 ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
279 ir_function_signature *copy = this->clone_prototype(mem_ctx, ht);
281 copy->is_defined = this->is_defined;
283 /* Clone the instruction list.
285 foreach_list_const(node, &this->body) {
286 const ir_instruction *const inst = (const ir_instruction *) node;
288 ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
289 copy->body.push_tail(inst_copy);
295 ir_function_signature *
296 ir_function_signature::clone_prototype(void *mem_ctx, struct hash_table *ht) const
298 ir_function_signature *copy =
299 new(mem_ctx) ir_function_signature(this->return_type);
301 copy->is_defined = false;
302 copy->is_builtin = this->is_builtin;
304 /* Clone the parameter list, but NOT the body.
306 foreach_list_const(node, &this->parameters) {
307 const ir_variable *const param = (const ir_variable *) node;
309 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
311 ir_variable *const param_copy = param->clone(mem_ctx, ht);
312 copy->parameters.push_tail(param_copy);
319 ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
323 switch (this->type->base_type) {
326 case GLSL_TYPE_FLOAT:
328 return new(mem_ctx) ir_constant(this->type, &this->value);
330 case GLSL_TYPE_STRUCT: {
331 ir_constant *c = new(mem_ctx) ir_constant;
333 c->type = this->type;
334 for (exec_node *node = this->components.head
335 ; !node->is_tail_sentinel()
336 ; node = node->next) {
337 ir_constant *const orig = (ir_constant *) node;
339 c->components.push_tail(orig->clone(mem_ctx, NULL));
345 case GLSL_TYPE_ARRAY: {
346 ir_constant *c = new(mem_ctx) ir_constant;
348 c->type = this->type;
349 c->array_elements = talloc_array(c, ir_constant *, this->type->length);
350 for (unsigned i = 0; i < this->type->length; i++) {
351 c->array_elements[i] = this->array_elements[i]->clone(mem_ctx, NULL);
357 assert(!"Should not get here.");
363 class fixup_ir_call_visitor : public ir_hierarchical_visitor {
365 fixup_ir_call_visitor(struct hash_table *ht)
370 virtual ir_visitor_status visit_enter(ir_call *ir)
372 /* Try to find the function signature referenced by the ir_call in the
373 * table. If it is found, replace it with the value from the table.
375 ir_function_signature *sig =
376 (ir_function_signature *) hash_table_find(this->ht, ir->get_callee());
380 /* Since this may be used before function call parameters are flattened,
381 * the children also need to be processed.
383 return visit_continue;
387 struct hash_table *ht;
392 fixup_function_calls(struct hash_table *ht, exec_list *instructions)
394 fixup_ir_call_visitor v(ht);
400 clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
402 struct hash_table *ht =
403 hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
405 foreach_list_const(node, in) {
406 const ir_instruction *const original = (ir_instruction *) node;
407 ir_instruction *copy = original->clone(mem_ctx, ht);
409 out->push_tail(copy);
412 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
413 * cloned ir_function_signature nodes. This cannot be done automatically
414 * during cloning because the ir_call might be a forward reference (i.e.,
415 * the function signature that it references may not have been cloned yet).
417 fixup_function_calls(ht, out);