kc3-lang/angle/src/compiler/translator/TranslatorMetalDirect/RewriteUnaddressableReferences.h

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• Hash : d7aa0130
  Author :
  Date : 2021-04-26T16:56:15
  

  Upstream Apple's direct-to-Metal backend: compile translator.
  
  This change is meant to merge the translator changes from Apple's
  direct-to-Metal backend. Taken from Kyle Piddington's CL:
  https://chromium-review.googlesource.com/c/angle/angle/+/2857366/
  The goal of this CL is to merge the translator code in a state that
  compiles, but not to switch the Metal backend over to use this
  translator backend yet.
  
  Bug: angleproject:5505
  Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  

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• src/compiler/translator/TranslatorMetalDirect/RewriteUnaddressableReferences.h

• //
  // Copyright 2020 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_TRANSLATORMETALDIRECT_REWRITEUNADDRESSABLEREFERENCES_H_
  #define COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REWRITEUNADDRESSABLEREFERENCES_H_
  
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/TranslatorMetalDirect/ProgramPrelude.h"
  #include "compiler/translator/TranslatorMetalDirect/SymbolEnv.h"
  
  namespace sh
  {
  
  // Given:
  //   void foo(out x);
  // It is possible for the following to be legal in GLSL but not in Metal:
  //   foo(expression);
  // This can happen in cases where `expression` is a vector swizzle or vector element access.
  // This rewrite functionality introduces temporaries that serve as proxies to be passed to the
  // out/inout parameters as needed. The corresponding expressions get populated with their
  // proxies after the function call.
  ANGLE_NO_DISCARD bool RewriteUnaddressableReferences(TCompiler &compiler,
                                                       TIntermBlock &root,
                                                       SymbolEnv &symbolEnv);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REWRITEUNADDRESSABLEREFERENCES_H_
  

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