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

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• Hash : 4dd06d5d
  Author :
  Date : 2017-07-05T12:41:06
  

  Set proper symbol ids on temporary symbol nodes
  
  Temporary symbols used to all have symbol id 0. Now they get assigned
  unique symbol ids. This makes it possible to keep track of them
  according to the symbol id instead of their name, paving way to more
  robust AST handling in the future.
  
  BUG=angleproject:1490
  TEST=angle_unittests
  
  Change-Id: I292e2e483cc39173524fd30a30b48c4c808442e5
  Reviewed-on: https://chromium-review.googlesource.com/559335
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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• src/compiler/translator/ExpandIntegerPowExpressions.h

• //
  // Copyright (c) 2016 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.
  //
  // This mutating tree traversal works around a bug in the HLSL compiler optimizer with "pow" that
  // manifests under the following conditions:
  //
  // - If pow() has a literal exponent value
  // - ... and this value is integer or within 10e-6 of an integer
  // - ... and it is in {-4, -3, -2, 2, 3, 4, 5, 6, 7, 8}
  //
  // The workaround is to replace the pow with a series of multiplies.
  // See http://anglebug.com/851
  
  #ifndef COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_
  #define COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_
  
  namespace sh
  {
  
  class TIntermNode;
  class TSymbolUniqueId;
  
  void ExpandIntegerPowExpressions(TIntermNode *root, TSymbolUniqueId *temporaryId);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_
  

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