kc3-lang/angle/src/compiler/translator/SymbolUniqueId.h

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• Hash : 5fec7ab2
  Author :
  Date : 2018-04-04T11:58:33
  

  Identify functions by unique id in BuiltInFunctionEmulator
  
  Now that unique ids of all builtins are compile-time constants, we can
  use them to look up functions in BuiltInFunctionEmulator. This is
  simpler than using a custom struct with the name and parameters for
  identifying functions.
  
  This requires that we store a reference to a TFunction in those
  TIntermUnary nodes that were created based on a function.
  
  This decreases shader_translator binary size by about 6 KB on Windows.
  
  BUG=angleproject:2267
  BUG=chromium:823856
  TEST=angle_unittests
  
  Change-Id: Idd5a00c772c6f26dd36fdbbfbe161d22ab27c2fe
  Reviewed-on: https://chromium-review.googlesource.com/995372
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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• src/compiler/translator/SymbolUniqueId.h

• //
  // Copyright (c) 2017 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.
  //
  // SymbolUniqueId.h: Encapsulates a unique id for a symbol.
  
  #ifndef COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_
  #define COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_
  
  #include "compiler/translator/Common.h"
  
  namespace sh
  {
  
  class TSymbolTable;
  class TSymbol;
  
  class TSymbolUniqueId
  {
    public:
      POOL_ALLOCATOR_NEW_DELETE();
      explicit TSymbolUniqueId(const TSymbol &symbol);
      constexpr TSymbolUniqueId(const TSymbolUniqueId &) = default;
      TSymbolUniqueId &operator=(const TSymbolUniqueId &);
      bool operator==(const TSymbolUniqueId &) const;
  
      constexpr int get() const { return mId; }
  
    private:
      friend class TSymbolTable;
      explicit TSymbolUniqueId(TSymbolTable *symbolTable);
  
      friend class BuiltInId;
      constexpr TSymbolUniqueId(int staticId) : mId(staticId) {}
  
      int mId;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_SYMBOLUNIQUEID_H_
  

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