/*
 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.oracle.svm.core;

import org.graalvm.nativeimage.Platform;
import org.graalvm.nativeimage.Platforms;

import com.oracle.svm.core.code.RuntimeCodeCache;
import com.oracle.svm.core.deopt.DeoptimizedFrame;

import jdk.vm.ci.code.Architecture;
import jdk.vm.ci.code.TargetDescription;

import java.util.EnumSet;

public class SubstrateTargetDescription extends TargetDescription {
    @Platforms(Platform.HOSTED_ONLY.class)
    public static boolean shouldInlineObjectsInImageCode() {
        return SubstrateOptions.SpawnIsolates.getValue();
    }

    public static boolean shouldInlineObjectsInRuntimeCode() {
        return SubstrateOptions.SpawnIsolates.getValue() && RuntimeCodeCache.Options.WriteableCodeCache.getValue();
    }

    private final int deoptScratchSpace;
    private final EnumSet<?> runtimeCheckedCPUFeatures;

    @Platforms(Platform.HOSTED_ONLY.class)
    public SubstrateTargetDescription(Architecture arch, boolean isMP, int stackAlignment, int implicitNullCheckLimit, int deoptScratchSpace, EnumSet<?> runtimeCheckedCPUFeatures) {
        super(arch, isMP, stackAlignment, implicitNullCheckLimit, shouldInlineObjectsInImageCode());
        this.deoptScratchSpace = deoptScratchSpace;
        this.runtimeCheckedCPUFeatures = runtimeCheckedCPUFeatures;
    }

    /**
     * Returns the amount of scratch space which must be reserved for return value registers in
     * {@link DeoptimizedFrame}.
     */
    public int getDeoptScratchSpace() {
        return deoptScratchSpace;
    }

    public EnumSet<?> getRuntimeCheckedCPUFeatures() {
        return runtimeCheckedCPUFeatures;
    }
}
