446 lines
12 KiB
C++
446 lines
12 KiB
C++
/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include "util/compiler.h"
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#include "ir.h"
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#include "compiler/glsl_types.h"
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#include "util/hash_table.h"
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ir_rvalue *
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ir_rvalue::clone(void *mem_ctx, struct hash_table *) const
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{
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/* The only possible instantiation is the generic error value. */
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return error_value(mem_ctx);
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}
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/**
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* Duplicate an IR variable
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*/
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ir_variable *
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ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_variable *var = new(mem_ctx) ir_variable(this->type, this->name,
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(ir_variable_mode) this->data.mode);
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var->data.max_array_access = this->data.max_array_access;
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if (this->is_interface_instance()) {
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var->u.max_ifc_array_access =
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rzalloc_array(var, int, this->interface_type->length);
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memcpy(var->u.max_ifc_array_access, this->u.max_ifc_array_access,
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this->interface_type->length * sizeof(unsigned));
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}
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memcpy(&var->data, &this->data, sizeof(var->data));
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if (this->get_state_slots()) {
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ir_state_slot *s = var->allocate_state_slots(this->get_num_state_slots());
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memcpy(s, this->get_state_slots(),
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sizeof(s[0]) * var->get_num_state_slots());
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}
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if (this->constant_value)
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var->constant_value = this->constant_value->clone(mem_ctx, ht);
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if (this->constant_initializer)
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var->constant_initializer =
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this->constant_initializer->clone(mem_ctx, ht);
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var->interface_type = this->interface_type;
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if (ht)
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_mesa_hash_table_insert(ht, (void *)const_cast<ir_variable *>(this), var);
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return var;
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}
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ir_swizzle *
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ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
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{
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return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
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}
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ir_return *
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ir_return::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_rvalue *new_value = NULL;
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if (this->value)
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new_value = this->value->clone(mem_ctx, ht);
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return new(mem_ctx) ir_return(new_value);
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}
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ir_discard *
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ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_rvalue *new_condition = NULL;
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if (this->condition != NULL)
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new_condition = this->condition->clone(mem_ctx, ht);
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return new(mem_ctx) ir_discard(new_condition);
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}
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ir_demote *
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ir_demote::clone(void *mem_ctx, struct hash_table *ht) const
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{
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return new(mem_ctx) ir_demote();
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}
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ir_loop_jump *
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ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
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{
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(void)ht;
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return new(mem_ctx) ir_loop_jump(this->mode);
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}
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ir_if *
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ir_if::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
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foreach_in_list(ir_instruction, ir, &this->then_instructions) {
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new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
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}
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foreach_in_list(ir_instruction, ir, &this->else_instructions) {
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new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
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}
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return new_if;
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}
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ir_loop *
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ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_loop *new_loop = new(mem_ctx) ir_loop();
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foreach_in_list(ir_instruction, ir, &this->body_instructions) {
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new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
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}
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return new_loop;
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}
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ir_call *
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ir_call::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_dereference_variable *new_return_ref = NULL;
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if (this->return_deref != NULL)
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new_return_ref = this->return_deref->clone(mem_ctx, ht);
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exec_list new_parameters;
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foreach_in_list(ir_instruction, ir, &this->actual_parameters) {
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new_parameters.push_tail(ir->clone(mem_ctx, ht));
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}
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return new(mem_ctx) ir_call(this->callee, new_return_ref, &new_parameters);
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}
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ir_expression *
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ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_rvalue *op[ARRAY_SIZE(this->operands)] = { NULL, };
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unsigned int i;
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for (i = 0; i < num_operands; i++) {
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op[i] = this->operands[i]->clone(mem_ctx, ht);
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}
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return new(mem_ctx) ir_expression(this->operation, this->type,
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op[0], op[1], op[2], op[3]);
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}
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ir_dereference_variable *
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ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_variable *new_var;
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if (ht) {
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hash_entry *entry = _mesa_hash_table_search(ht, this->var);
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new_var = entry ? (ir_variable *) entry->data : this->var;
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} else {
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new_var = this->var;
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}
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return new(mem_ctx) ir_dereference_variable(new_var);
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}
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ir_dereference_array *
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ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
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{
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return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
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this->array_index->clone(mem_ctx,
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ht));
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}
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ir_dereference_record *
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ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
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{
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assert(this->field_idx >= 0);
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const char *field_name =
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this->record->type->fields.structure[this->field_idx].name;
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return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
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field_name);
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}
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ir_texture *
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ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
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new_tex->type = this->type;
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new_tex->sampler = this->sampler->clone(mem_ctx, ht);
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if (this->coordinate)
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new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
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if (this->projector)
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new_tex->projector = this->projector->clone(mem_ctx, ht);
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if (this->shadow_comparator) {
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new_tex->shadow_comparator = this->shadow_comparator->clone(mem_ctx, ht);
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}
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if (this->offset != NULL)
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new_tex->offset = this->offset->clone(mem_ctx, ht);
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switch (this->op) {
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case ir_tex:
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case ir_lod:
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case ir_query_levels:
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case ir_texture_samples:
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case ir_samples_identical:
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break;
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case ir_txb:
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new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
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break;
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case ir_txl:
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case ir_txf:
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case ir_txs:
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new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
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break;
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case ir_txf_ms:
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new_tex->lod_info.sample_index = this->lod_info.sample_index->clone(mem_ctx, ht);
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break;
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case ir_txd:
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new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
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new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
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break;
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case ir_tg4:
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new_tex->lod_info.component = this->lod_info.component->clone(mem_ctx, ht);
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break;
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}
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return new_tex;
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}
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ir_assignment *
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ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_rvalue *new_condition = NULL;
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if (this->condition)
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new_condition = this->condition->clone(mem_ctx, ht);
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ir_assignment *cloned =
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new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
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this->rhs->clone(mem_ctx, ht),
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new_condition);
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cloned->write_mask = this->write_mask;
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return cloned;
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}
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ir_function *
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ir_function::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_function *copy = new(mem_ctx) ir_function(this->name);
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copy->is_subroutine = this->is_subroutine;
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copy->subroutine_index = this->subroutine_index;
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copy->num_subroutine_types = this->num_subroutine_types;
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copy->subroutine_types = ralloc_array(mem_ctx, const struct glsl_type *, copy->num_subroutine_types);
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for (int i = 0; i < copy->num_subroutine_types; i++)
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copy->subroutine_types[i] = this->subroutine_types[i];
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foreach_in_list(const ir_function_signature, sig, &this->signatures) {
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ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
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copy->add_signature(sig_copy);
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if (ht != NULL) {
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_mesa_hash_table_insert(ht,
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(void *)const_cast<ir_function_signature *>(sig), sig_copy);
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}
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}
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return copy;
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}
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ir_function_signature *
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ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
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{
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ir_function_signature *copy = this->clone_prototype(mem_ctx, ht);
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copy->is_defined = this->is_defined;
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/* Clone the instruction list.
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*/
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foreach_in_list(const ir_instruction, inst, &this->body) {
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ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
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copy->body.push_tail(inst_copy);
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}
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return copy;
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}
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ir_function_signature *
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ir_function_signature::clone_prototype(void *mem_ctx, struct hash_table *ht) const
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{
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ir_function_signature *copy =
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new(mem_ctx) ir_function_signature(this->return_type);
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copy->is_defined = false;
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copy->builtin_avail = this->builtin_avail;
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copy->origin = this;
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/* Clone the parameter list, but NOT the body.
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*/
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foreach_in_list(const ir_variable, param, &this->parameters) {
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assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
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ir_variable *const param_copy = param->clone(mem_ctx, ht);
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copy->parameters.push_tail(param_copy);
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}
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return copy;
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}
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ir_constant *
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ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
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{
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(void)ht;
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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case GLSL_TYPE_INT:
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case GLSL_TYPE_FLOAT:
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case GLSL_TYPE_FLOAT16:
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case GLSL_TYPE_DOUBLE:
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case GLSL_TYPE_BOOL:
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case GLSL_TYPE_UINT64:
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case GLSL_TYPE_INT64:
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case GLSL_TYPE_UINT16:
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case GLSL_TYPE_INT16:
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case GLSL_TYPE_UINT8:
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case GLSL_TYPE_INT8:
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case GLSL_TYPE_SAMPLER:
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case GLSL_TYPE_TEXTURE:
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case GLSL_TYPE_IMAGE:
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return new(mem_ctx) ir_constant(this->type, &this->value);
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case GLSL_TYPE_STRUCT:
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case GLSL_TYPE_ARRAY: {
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ir_constant *c = new(mem_ctx) ir_constant;
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c->type = this->type;
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c->const_elements = ralloc_array(c, ir_constant *, this->type->length);
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for (unsigned i = 0; i < this->type->length; i++) {
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c->const_elements[i] = this->const_elements[i]->clone(mem_ctx, NULL);
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}
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return c;
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}
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case GLSL_TYPE_ATOMIC_UINT:
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case GLSL_TYPE_VOID:
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case GLSL_TYPE_ERROR:
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case GLSL_TYPE_SUBROUTINE:
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case GLSL_TYPE_INTERFACE:
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case GLSL_TYPE_FUNCTION:
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assert(!"Should not get here.");
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break;
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}
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return NULL;
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}
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class fixup_ir_call_visitor : public ir_hierarchical_visitor {
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public:
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fixup_ir_call_visitor(struct hash_table *ht)
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{
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this->ht = ht;
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}
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virtual ir_visitor_status visit_enter(ir_call *ir)
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{
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/* Try to find the function signature referenced by the ir_call in the
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* table. If it is found, replace it with the value from the table.
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*/
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ir_function_signature *sig;
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hash_entry *entry = _mesa_hash_table_search(this->ht, ir->callee);
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if (entry != NULL) {
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sig = (ir_function_signature *) entry->data;
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ir->callee = sig;
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}
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/* Since this may be used before function call parameters are flattened,
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* the children also need to be processed.
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*/
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return visit_continue;
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}
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private:
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struct hash_table *ht;
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};
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static void
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fixup_function_calls(struct hash_table *ht, exec_list *instructions)
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{
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fixup_ir_call_visitor v(ht);
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v.run(instructions);
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}
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void
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clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
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{
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struct hash_table *ht = _mesa_pointer_hash_table_create(NULL);
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foreach_in_list(const ir_instruction, original, in) {
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ir_instruction *copy = original->clone(mem_ctx, ht);
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out->push_tail(copy);
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}
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/* Make a pass over the cloned tree to fix up ir_call nodes to point to the
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* cloned ir_function_signature nodes. This cannot be done automatically
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* during cloning because the ir_call might be a forward reference (i.e.,
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* the function signature that it references may not have been cloned yet).
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*/
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fixup_function_calls(ht, out);
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_mesa_hash_table_destroy(ht, NULL);
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}
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