kc3-lang/angle/src/compiler/translator/tree_ops/RewriteAtomicFunctionExpressions.h

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• Hash : 472c74c6
  Author :
  Date : 2019-08-19T16:32:13
  

  Translator: Allow tree validation in children of TCompiler
  
  This is to be able to perform validation inside TranslatorVulkan, even
  if it's through ASSERTs.
  
  Additionally, every transformation is changed such that they do their
  validation themselves.  TIntermTraverser::updateTree() performs the
  validation, which indirectly validates many of three tree
  transformations.  Some of the more ancient transformations that don't
  use this function directly call TCompiler::validateAST.
  
  Bug: angleproject:2733
  Change-Id: Ie4af029d34e053c5ad1dc8c2c2568eecd625d344
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1761149
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_ops/RewriteAtomicFunctionExpressions.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.
  //
  // RewriteAtomicFunctionExpressions rewrites the expressions that contain
  // atomic function calls and cannot be directly translated into HLSL into
  // several simple ones that can be easily handled in the HLSL translator.
  //
  // We need to rewite these expressions because:
  // 1. All GLSL atomic functions have return values, which all represent the
  //    original value of the shared or ssbo variable; while all HLSL atomic
  //    functions don't, and the original value can be stored in the last
  //    parameter of the function call.
  // 2. For HLSL atomic functions, the last parameter that stores the original
  //    value is optional except for InterlockedExchange and
  //    InterlockedCompareExchange. Missing original_value in the call of
  //    InterlockedExchange or InterlockedCompareExchange results in a compile
  //    error from HLSL compiler.
  //
  // RewriteAtomicFunctionExpressions is a function that can modify the AST
  // to ensure all the expressions that contain atomic function calls can be
  // directly translated into HLSL expressions.
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITE_ATOMIC_FUNCTION_EXPRESSIONS_H_
  #define COMPILER_TRANSLATOR_TREEOPS_REWRITE_ATOMIC_FUNCTION_EXPRESSIONS_H_
  
  #include "common/angleutils.h"
  
  namespace sh
  {
  class TCompiler;
  class TIntermNode;
  class TSymbolTable;
  
  ANGLE_NO_DISCARD bool RewriteAtomicFunctionExpressions(TCompiler *compiler,
                                                         TIntermNode *root,
                                                         TSymbolTable *symbolTable,
                                                         int shaderVersion);
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_REWRITE_ATOMIC_FUNCTION_EXPRESSIONS_H_
  

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