kc3-lang/angle/src/compiler/translator/tree_ops/msl/WrapMain.cpp

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• Hash : 9b63700b
  Author :
  Date : 2023-07-11T10:25:40
  

  Translator: Reorganize files
  
  This change makes the translator files more organized by:
  
  - Grouping files that are specific to a certain output under their own
    directory,
  - Moving transformations under tree_ops
  - Removing Direct from metal translation now that that SPIR-V Cross path
    is removed
  
  Bug: angleproject:6394
  Change-Id: Iaf5bb8d5604b84748dece029821b1f77b2813967
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4678780
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/compiler/translator/tree_ops/msl/WrapMain.cpp

• //
  // 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.
  //
  
  #include "compiler/translator/tree_ops/msl/WrapMain.h"
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/msl/AstHelpers.h"
  
  using namespace sh;
  
  ////////////////////////////////////////////////////////////////////////////////
  
  namespace
  {
  
  class Wrapper : public TIntermTraverser
  {
    private:
      IdGen &mIdGen;
  
    public:
      Wrapper(TSymbolTable &symbolTable, IdGen &idGen)
          : TIntermTraverser(false, false, true, &symbolTable), mIdGen(idGen)
      {}
  
      bool visitBlock(Visit, TIntermBlock *blockNode) override
      {
          if (blockNode != getRootNode())
          {
              return true;
          }
  
          for (TIntermNode *node : *blockNode->getSequence())
          {
              if (TIntermFunctionDefinition *funcDefNode = node->getAsFunctionDefinition())
              {
                  const TFunction &func = *funcDefNode->getFunction();
                  if (func.isMain())
                  {
                      visitMain(*blockNode, funcDefNode);
                      break;
                  }
              }
          }
  
          return true;
      }
  
    private:
      void visitMain(TIntermBlock &root, TIntermFunctionDefinition *funcDefNode)
      {
          const TFunction &func = *funcDefNode->getFunction();
          ASSERT(func.isMain());
          ASSERT(func.getReturnType().getBasicType() == TBasicType::EbtVoid);
          ASSERT(func.getParamCount() == 0);
  
          const TFunction &externalMainFunc = *funcDefNode->getFunction();
          const TFunction &internalMainFunc = CloneFunction(*mSymbolTable, mIdGen, externalMainFunc);
  
          TIntermFunctionPrototype *externalMainProto = funcDefNode->getFunctionPrototype();
          TIntermFunctionPrototype *internalMainProto =
              new TIntermFunctionPrototype(&internalMainFunc);
  
          TIntermBlock *externalMainBody = new TIntermBlock();
          externalMainBody->appendStatement(
              TIntermAggregate::CreateFunctionCall(internalMainFunc, new TIntermSequence()));
  
          TIntermBlock *internalMainBody = funcDefNode->getBody();
  
          TIntermFunctionDefinition *externalMainDef =
              new TIntermFunctionDefinition(externalMainProto, externalMainBody);
          TIntermFunctionDefinition *internalMainDef =
              new TIntermFunctionDefinition(internalMainProto, internalMainBody);
  
          mMultiReplacements.push_back(NodeReplaceWithMultipleEntry(
              &root, funcDefNode, TIntermSequence{internalMainDef, externalMainDef}));
      }
  };
  
  }  // namespace
  
  bool sh::WrapMain(TCompiler &compiler, IdGen &idGen, TIntermBlock &root)
  {
      TSymbolTable &symbolTable = compiler.getSymbolTable();
      Wrapper wrapper(symbolTable, idGen);
      root.traverse(&wrapper);
      if (!wrapper.updateTree(&compiler, &root))
      {
          return false;
      }
      return true;
  }
  

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