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11 * The above copyright notice and this permission notice (including the next
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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 "compiler/glsl_types.h"
28 #include "util/hash_table.h"
31 ir_rvalue::clone(void *mem_ctx, struct hash_table *) 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->u.max_ifc_array_access =
49 rzalloc_array(var, int, this->interface_type->length);
50 memcpy(var->u.max_ifc_array_access, this->u.max_ifc_array_access,
51 this->interface_type->length * sizeof(unsigned));
54 memcpy(&var->data, &this->data, sizeof(var->data));
56 if (this->get_state_slots()) {
57 ir_state_slot *s = var->allocate_state_slots(this->get_num_state_slots());
58 memcpy(s, this->get_state_slots(),
59 sizeof(s[0]) * var->get_num_state_slots());
62 if (this->constant_value)
63 var->constant_value = this->constant_value->clone(mem_ctx, ht);
65 if (this->constant_initializer)
66 var->constant_initializer =
67 this->constant_initializer->clone(mem_ctx, ht);
69 var->interface_type = this->interface_type;
72 _mesa_hash_table_insert(ht, (void *)const_cast<ir_variable *>(this), var);
78 ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
80 return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
84 ir_return::clone(void *mem_ctx, struct hash_table *ht) const
86 ir_rvalue *new_value = NULL;
89 new_value = this->value->clone(mem_ctx, ht);
91 return new(mem_ctx) ir_return(new_value);
95 ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
97 ir_rvalue *new_condition = NULL;
99 if (this->condition != NULL)
100 new_condition = this->condition->clone(mem_ctx, ht);
102 return new(mem_ctx) ir_discard(new_condition);
106 ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
110 return new(mem_ctx) ir_loop_jump(this->mode);
114 ir_if::clone(void *mem_ctx, struct hash_table *ht) const
116 ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
118 foreach_in_list(ir_instruction, ir, &this->then_instructions) {
119 new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
122 foreach_in_list(ir_instruction, ir, &this->else_instructions) {
123 new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
130 ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
132 ir_loop *new_loop = new(mem_ctx) ir_loop();
134 foreach_in_list(ir_instruction, ir, &this->body_instructions) {
135 new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
142 ir_call::clone(void *mem_ctx, struct hash_table *ht) const
144 ir_dereference_variable *new_return_ref = NULL;
145 if (this->return_deref != NULL)
146 new_return_ref = this->return_deref->clone(mem_ctx, ht);
148 exec_list new_parameters;
150 foreach_in_list(ir_instruction, ir, &this->actual_parameters) {
151 new_parameters.push_tail(ir->clone(mem_ctx, ht));
154 return new(mem_ctx) ir_call(this->callee, new_return_ref, &new_parameters);
158 ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
160 ir_rvalue *op[ARRAY_SIZE(this->operands)] = { NULL, };
163 for (i = 0; i < num_operands; i++) {
164 op[i] = this->operands[i]->clone(mem_ctx, ht);
167 return new(mem_ctx) ir_expression(this->operation, this->type,
168 op[0], op[1], op[2], op[3]);
171 ir_dereference_variable *
172 ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
174 ir_variable *new_var;
177 hash_entry *entry = _mesa_hash_table_search(ht, this->var);
178 new_var = entry ? (ir_variable *) entry->data : this->var;
183 return new(mem_ctx) ir_dereference_variable(new_var);
186 ir_dereference_array *
187 ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
189 return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
190 this->array_index->clone(mem_ctx,
194 ir_dereference_record *
195 ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
197 const char *field_name =
198 this->record->type->fields.structure[this->field_idx].name;
199 return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
204 ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
206 ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
207 new_tex->type = this->type;
209 new_tex->sampler = this->sampler->clone(mem_ctx, ht);
210 if (this->coordinate)
211 new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
213 new_tex->projector = this->projector->clone(mem_ctx, ht);
214 if (this->shadow_comparator) {
215 new_tex->shadow_comparator = this->shadow_comparator->clone(mem_ctx, ht);
218 if (this->offset != NULL)
219 new_tex->offset = this->offset->clone(mem_ctx, ht);
224 case ir_query_levels:
225 case ir_texture_samples:
226 case ir_samples_identical:
229 new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
234 new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
237 new_tex->lod_info.sample_index = this->lod_info.sample_index->clone(mem_ctx, ht);
240 new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
241 new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
244 new_tex->lod_info.component = this->lod_info.component->clone(mem_ctx, ht);
252 ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
254 ir_rvalue *new_condition = NULL;
257 new_condition = this->condition->clone(mem_ctx, ht);
259 ir_assignment *cloned =
260 new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
261 this->rhs->clone(mem_ctx, ht),
263 cloned->write_mask = this->write_mask;
268 ir_function::clone(void *mem_ctx, struct hash_table *ht) const
270 ir_function *copy = new(mem_ctx) ir_function(this->name);
272 copy->is_subroutine = this->is_subroutine;
273 copy->subroutine_index = this->subroutine_index;
274 copy->num_subroutine_types = this->num_subroutine_types;
275 copy->subroutine_types = ralloc_array(mem_ctx, const struct glsl_type *, copy->num_subroutine_types);
276 for (int i = 0; i < copy->num_subroutine_types; i++)
277 copy->subroutine_types[i] = this->subroutine_types[i];
279 foreach_in_list(const ir_function_signature, sig, &this->signatures) {
280 ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
281 copy->add_signature(sig_copy);
284 _mesa_hash_table_insert(ht,
285 (void *)const_cast<ir_function_signature *>(sig), sig_copy);
292 ir_function_signature *
293 ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
295 ir_function_signature *copy = this->clone_prototype(mem_ctx, ht);
297 copy->is_defined = this->is_defined;
299 /* Clone the instruction list.
301 foreach_in_list(const ir_instruction, inst, &this->body) {
302 ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
303 copy->body.push_tail(inst_copy);
309 ir_function_signature *
310 ir_function_signature::clone_prototype(void *mem_ctx, struct hash_table *ht) const
312 ir_function_signature *copy =
313 new(mem_ctx) ir_function_signature(this->return_type);
315 copy->is_defined = false;
316 copy->builtin_avail = this->builtin_avail;
319 /* Clone the parameter list, but NOT the body.
321 foreach_in_list(const ir_variable, param, &this->parameters) {
322 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
324 ir_variable *const param_copy = param->clone(mem_ctx, ht);
325 copy->parameters.push_tail(param_copy);
332 ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
336 switch (this->type->base_type) {
339 case GLSL_TYPE_FLOAT:
340 case GLSL_TYPE_DOUBLE:
342 case GLSL_TYPE_UINT64:
343 case GLSL_TYPE_INT64:
344 case GLSL_TYPE_SAMPLER:
345 case GLSL_TYPE_IMAGE:
346 return new(mem_ctx) ir_constant(this->type, &this->value);
348 case GLSL_TYPE_STRUCT:
349 case GLSL_TYPE_ARRAY: {
350 ir_constant *c = new(mem_ctx) ir_constant;
352 c->type = this->type;
353 c->const_elements = ralloc_array(c, ir_constant *, this->type->length);
354 for (unsigned i = 0; i < this->type->length; i++) {
355 c->const_elements[i] = this->const_elements[i]->clone(mem_ctx, NULL);
360 case GLSL_TYPE_ATOMIC_UINT:
362 case GLSL_TYPE_ERROR:
363 case GLSL_TYPE_SUBROUTINE:
364 case GLSL_TYPE_INTERFACE:
365 case GLSL_TYPE_FUNCTION:
366 assert(!"Should not get here.");
374 class fixup_ir_call_visitor : public ir_hierarchical_visitor {
376 fixup_ir_call_visitor(struct hash_table *ht)
381 virtual ir_visitor_status visit_enter(ir_call *ir)
383 /* Try to find the function signature referenced by the ir_call in the
384 * table. If it is found, replace it with the value from the table.
386 ir_function_signature *sig;
387 hash_entry *entry = _mesa_hash_table_search(this->ht, ir->callee);
390 sig = (ir_function_signature *) entry->data;
394 /* Since this may be used before function call parameters are flattened,
395 * the children also need to be processed.
397 return visit_continue;
401 struct hash_table *ht;
406 fixup_function_calls(struct hash_table *ht, exec_list *instructions)
408 fixup_ir_call_visitor v(ht);
414 clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
416 struct hash_table *ht =
417 _mesa_hash_table_create(NULL, _mesa_hash_pointer, _mesa_key_pointer_equal);
419 foreach_in_list(const ir_instruction, original, in) {
420 ir_instruction *copy = original->clone(mem_ctx, ht);
422 out->push_tail(copy);
425 /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
426 * cloned ir_function_signature nodes. This cannot be done automatically
427 * during cloning because the ir_call might be a forward reference (i.e.,
428 * the function signature that it references may not have been cloned yet).
430 fixup_function_calls(ht, out);
432 _mesa_hash_table_destroy(ht, NULL);