b08aee305e
Through the glsl headers we had an odd mix of guards be that "ifndef", "pragma once" neither or both. Simplify things by using the more common ones (ifndef) and annotating all the sources, barring the generated builting header - builtin_int64.h. The final header - udivmod64.h - is [seemingly] unused and on its way out (patch purge it is on the mailing list). Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Acked-by: Vedran Miletić <vedran@miletic.net> Acked-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
92 lines
2.9 KiB
C++
92 lines
2.9 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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/**
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* \file ir_variable_refcount.h
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*
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* Provides a visitor which produces a list of variables referenced,
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* how many times they were referenced and assigned, and whether they
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* were defined in the scope.
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*/
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#ifndef GLSL_IR_VARIABLE_REFCOUNT_H
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#define GLSL_IR_VARIABLE_REFCOUNT_H
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#include "ir.h"
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#include "ir_visitor.h"
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#include "compiler/glsl_types.h"
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struct assignment_entry {
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exec_node link;
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ir_assignment *assign;
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};
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class ir_variable_refcount_entry
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{
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public:
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ir_variable_refcount_entry(ir_variable *var);
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ir_variable *var; /* The key: the variable's pointer. */
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/**
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* List of assignments to the variable, if any.
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* This is intended to be used for dead code optimisation and may
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* not be a complete list.
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*/
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exec_list assign_list;
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/** Number of times the variable is referenced, including assignments. */
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unsigned referenced_count;
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/** Number of times the variable is assigned. */
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unsigned assigned_count;
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bool declaration; /* If the variable had a decl in the instruction stream */
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};
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class ir_variable_refcount_visitor : public ir_hierarchical_visitor {
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public:
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ir_variable_refcount_visitor(void);
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~ir_variable_refcount_visitor(void);
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virtual ir_visitor_status visit(ir_variable *);
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virtual ir_visitor_status visit(ir_dereference_variable *);
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virtual ir_visitor_status visit_enter(ir_function_signature *);
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virtual ir_visitor_status visit_leave(ir_assignment *);
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/**
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* Find variable in the hash table, and insert it if not present
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*/
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ir_variable_refcount_entry *get_variable_entry(ir_variable *var);
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/**
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* Hash table mapping ir_variable to ir_variable_refcount_entry.
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*/
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struct hash_table *ht;
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void *mem_ctx;
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};
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#endif /* GLSL_IR_VARIABLE_REFCOUNT_H */
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