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

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• Hash : c9c259cc
  Author :
  Date : 2018-06-13T11:03:22
  

  Add a shared traverse() function for most node types
  
  The traversal logic for many node types is essentially the same. Use
  a single traverse() function for all simple node types instead of
  having different ones for each node type. Special traversal code is
  only needed for those node types where the traversal logic is
  overridden in specific traversers or which do special bookkeeping.
  
  This makes traverser behavior a bit more consistent: InVisit calls are
  now done for all node types, including if/else, ternary and loop
  nodes. Also false returned from visit function will always skip
  traversing the next children of that node.
  
  This reduces shader_translator binary size on Windows by 8 kilobytes.
  The added helper functions will also make it easier to implement
  alternative more efficient traversers.
  
  Unfortunately this also regresses compiler perf tests by around 2-3%.
  
  BUG=angleproject:2662
  TEST=angle_unittests, angle_end2end_tests
  
  Change-Id: I3cb1256297b66e1db4b133b8fb84a24c349a9e29
  Reviewed-on: https://chromium-review.googlesource.com/1133009
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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

• //
  // Copyright (c) 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.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_VISIT_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_VISIT_H_
  
  namespace sh
  {
  
  enum Visit
  {
      PreVisit,
      InVisit,
      PostVisit
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEUTIL_VISIT_H_
  

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