kc3-lang/angle/src/compiler/translator/Intermediate.cpp

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• Hash : 56229f1b
  Author :
  Date : 2017-07-10T14:16:33
  

  Remove TIntermediate::addConstantUnion
  
  This includes asserts in TConstantUnion to reveal incorrect usage of
  union - reading a different field of an union that has last been set
  is undefined behavior in C++.
  
  Existing issues with accessing incorrect fields of constant unions
  are fixed.
  
  BUG=angleproject:1490
  TEST=angle_unittests
  
  Change-Id: Idd6b7a871d73e2928f117a9348c92043612fab82
  

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• src/compiler/translator/Intermediate.cpp

• //
  // Copyright (c) 2002-2014 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.
  //
  
  //
  // Build the intermediate representation.
  //
  
  #include <float.h>
  #include <limits.h>
  #include <algorithm>
  
  #include "compiler/translator/Intermediate.h"
  #include "compiler/translator/SymbolTable.h"
  
  namespace sh
  {
  
  ////////////////////////////////////////////////////////////////////////////
  //
  // First set of functions are to help build the intermediate representation.
  // These functions are not member functions of the nodes.
  // They are called from parser productions.
  //
  /////////////////////////////////////////////////////////////////////////////
  
  // If the input node is nullptr, return nullptr.
  // If the input node is a block node, return it.
  // If the input node is not a block node, put it inside a block node and return that.
  TIntermBlock *TIntermediate::EnsureBlock(TIntermNode *node)
  {
      if (node == nullptr)
          return nullptr;
      TIntermBlock *blockNode = node->getAsBlock();
      if (blockNode != nullptr)
          return blockNode;
  
      blockNode = new TIntermBlock();
      blockNode->setLine(node->getLine());
      blockNode->appendStatement(node);
      return blockNode;
  }
  
  }  // namespace sh
  

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