PostEscapeAnalysis.hpp

/*******************************************************************************
 * Copyright IBM Corp. and others 2019
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0
 * or the Apache License, Version 2.0 which accompanies this distribution
 * and is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception [1] and GNU General Public
 * License, version 2 with the OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 *******************************************************************************/

#ifndef VIRTUALGUARDHEADMERGER_INCL
#define VIRTUALGUARDHEADMERGER_INCL

#include <stdint.h>                           // for int32_t
#include "optimizer/Optimization.hpp"         // for Optimization
#include "optimizer/OptimizationManager.hpp"  // for OptimizationManager

namespace TR { class Block; }

/**
 * The \c TR_PostEscapeAnalysis optimization performs a simple
 * clean up pass over the trees to remove fake \c prepareForOSR calls
 * that were added by \ref TR_PreEscapeAnalysis.
 *
 * \see TR_PreEscapeAnalysis,TR_EscapeAnalysis
 */
class TR_PostEscapeAnalysis : public TR::Optimization
   {
   public:
   TR_PostEscapeAnalysis(TR::OptimizationManager *manager)
      : TR::Optimization(manager)
      {}
   static TR::Optimization *create(TR::OptimizationManager *manager)
      {
      return new (manager->allocator()) TR_PostEscapeAnalysis(manager);
      }

   virtual int32_t perform();
   virtual const char * optDetailString() const throw();

   private:
   };

#endif