| 0,0 → 1,69 |
|---|
| /* |
| * Copyright © 2010 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \file ir_variable_refcount.h |
| * |
| * Provides a visitor which produces a list of variables referenced, |
| * how many times they were referenced and assigned, and whether they |
| * were defined in the scope. |
| */ |
| |
| #include "ir.h" |
| #include "ir_visitor.h" |
| #include "glsl_types.h" |
| |
| class ir_variable_refcount_entry |
| { |
| public: |
| ir_variable_refcount_entry(ir_variable *var); |
| |
| ir_variable *var; /* The key: the variable's pointer. */ |
| ir_assignment *assign; /* An assignment to the variable, if any */ |
| |
| /** Number of times the variable is referenced, including assignments. */ |
| unsigned referenced_count; |
| |
| /** Number of times the variable is assigned. */ |
| unsigned assigned_count; |
| |
| bool declaration; /* If the variable had a decl in the instruction stream */ |
| }; |
| |
| class ir_variable_refcount_visitor : public ir_hierarchical_visitor { |
| public: |
| ir_variable_refcount_visitor(void); |
| ~ir_variable_refcount_visitor(void); |
| |
| virtual ir_visitor_status visit(ir_variable *); |
| virtual ir_visitor_status visit(ir_dereference_variable *); |
| |
| virtual ir_visitor_status visit_enter(ir_function_signature *); |
| virtual ir_visitor_status visit_leave(ir_assignment *); |
| |
| ir_variable_refcount_entry *get_variable_entry(ir_variable *var); |
| |
| struct hash_table *ht; |
| |
| void *mem_ctx; |
| }; |