kc3-lang/angle/src/compiler/translator/tree_util/ReplaceVariable.h

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• Author : Shahbaz Youssefi
  Date : 2021-01-17 14:24:53
  Hash : 2b242f53
  Message : Vulkan: Simplify RewriteCubeMapSamplersAs2DArray This change is mostly done to remove an unnecessary helper in ReplaceVariable.cpp. Tested locally, as the bots all support ES3.1+. There are a few failures, with or without this change. Bug: angleproject:5556 Change-Id: I7bd2d4294c9dc164146d713db6b45cbc73e59c16 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2633437 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>

• src/compiler/translator/tree_util/ReplaceVariable.h

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // ReplaceVariable.h: Replace all references to a specific variable in the AST with references to
  // another variable.
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_
  
  #include "common/debug.h"
  
  #include <stack>
  #include <unordered_map>
  
  namespace sh
  {
  
  class TCompiler;
  class TFunction;
  class TIntermAggregate;
  class TIntermBlock;
  class TIntermFunctionPrototype;
  class TIntermNode;
  class TIntermTyped;
  class TSymbolTable;
  class TVariable;
  
  ANGLE_NO_DISCARD bool ReplaceVariable(TCompiler *compiler,
                                        TIntermBlock *root,
                                        const TVariable *toBeReplaced,
                                        const TVariable *replacement);
  ANGLE_NO_DISCARD bool ReplaceVariableWithTyped(TCompiler *compiler,
                                                 TIntermBlock *root,
                                                 const TVariable *toBeReplaced,
                                                 const TIntermTyped *replacement);
  
  using VariableReplacementMap = angle::HashMap<const TVariable *, const TIntermTyped *>;
  
  // Replace a set of variables with their corresponding expression.
  ANGLE_NO_DISCARD bool ReplaceVariables(TCompiler *compiler,
                                         TIntermBlock *root,
                                         const VariableReplacementMap &variableMap);
  
  // Find all declarators, and replace the TVariable they are declaring with a duplicate.  This is
  // used to support deepCopy of TIntermBlock and TIntermLoop nodes that include declarations.
  // Replacements already present in variableMap are preserved.
  void GetDeclaratorReplacements(TSymbolTable *symbolTable,
                                 TIntermBlock *root,
                                 VariableReplacementMap *variableMap);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_