text: /*
   ***********************************************************************************************************************
   *
   *  Copyright (c) 2018 Advanced Micro Devices, Inc. All Rights Reserved.
   *
   *  Permission is hereby granted, free of charge, to any person obtaining a copy
   *  of this software and associated documentation files (the "Software"), to deal
   *  in the Software without restriction, including without limitation the rights
   *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   *  copies of the Software, and to permit persons to whom the Software is
   *  furnished to do so, subject to the following conditions:
   *
   *  The above copyright notice and this permission notice shall be included in all
   *  copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   *  SOFTWARE.
   *
   **********************************************************************************************************************/
  /**
   ***********************************************************************************************************************
   * @file  llpcSpirvLowerGlobalConstExprRemove.h
   * @brief LLPC header file: contains declaration of class Llpc::SpirvLowerGlobalConstExprRemove
   ***********************************************************************************************************************
   */
  #pragma once
  
  #include "llpcSpirvLower.h"
  
  namespace Llpc
  {
  
  // =====================================================================================================================
  // Pass to remove constant expressions that directly or indirectly involve global variables that are lowered in
  // SpirvLowerGlobal
  //
  // Global variable, inlcude general global variable, input and output is a special constant variable, so if
  // it is referenced by constant expression, we need translate constant expression to normal instruction first,
  // Otherwise, we will hit assert in replaceAllUsesWith() when we replace global variable with proxy variable.
  class SpirvLowerGlobalConstExprRemove : public SpirvLower
  {
  public:
      static char ID;
      SpirvLowerGlobalConstExprRemove() : SpirvLower(ID)
      {
          initializeSpirvLowerGlobalConstExprRemovePass(*llvm::PassRegistry::getPassRegistry());
      }
  
      bool runOnModule(llvm::Module& module) override;
  
  private:
      LLPC_DISALLOW_COPY_AND_ASSIGN(SpirvLowerGlobalConstExprRemove);
  };
  
  } // Llpc
  