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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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package org.graalvm.compiler.core.aarch64;

import java.util.List;

import java.util.ListIterator;

import org.graalvm.compiler.debug.GraalError;

import org.graalvm.compiler.java.DefaultSuitesCreator;

import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;

import org.graalvm.compiler.options.OptionValues;

import org.graalvm.compiler.phases.BasePhase;

import org.graalvm.compiler.phases.Phase;

import org.graalvm.compiler.phases.PhaseSuite;

import org.graalvm.compiler.phases.tiers.CompilerConfiguration;

import org.graalvm.compiler.phases.tiers.LowTierContext;

import org.graalvm.compiler.phases.tiers.Suites;

public class AArch64SuitesCreator extends DefaultSuitesCreator {

    private final List<Class<? extends Phase>> insertReadReplacementBeforePositions;

    public AArch64SuitesCreator(CompilerConfiguration compilerConfiguration, Plugins plugins, List<Class<? extends Phase>> insertReadReplacementBeforePositions) {

        super(compilerConfiguration, plugins);

        this.insertReadReplacementBeforePositions = insertReadReplacementBeforePositions;

    }

    @Override

    public Suites createSuites(OptionValues options) {

        Suites suites = super.createSuites(options);

        ListIterator<BasePhase<? super LowTierContext>> findPhase = null;

        for (Class<? extends Phase> phase : insertReadReplacementBeforePositions) {

            findPhase = suites.getLowTier().findPhase(phase);

            if (findPhase != null) {

                // Put AArch64ReadReplacementPhase right before the requested phase

                while (PhaseSuite.findNextPhase(findPhase, phase)) {

                    // Search for last occurrence of SchedulePhase

                }

                findPhase.previous();

                break;

            }

        }

        if (findPhase != null) {

            findPhase.add(new AArch64ReadReplacementPhase());

        } else {

            throw GraalError.shouldNotReachHere("Cannot find phase to insert AArch64ReadReplacementPhase");

        }

        return suites;

    }

}