hotspot/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/spi/ForeignCallsProvider.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * 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).
 *
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 * 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.common.spi;

import org.graalvm.compiler.core.common.LIRKind;
import org.graalvm.compiler.core.common.LocationIdentity;

import jdk.vm.ci.code.ValueKindFactory;

/**
 * Details about a set of supported {@link ForeignCallDescriptor foreign calls}.
 */
public interface ForeignCallsProvider extends ValueKindFactory<LIRKind> {

    /**
     * Determines if a given foreign call is side-effect free. Deoptimization cannot return
     * execution to a point before a foreign call that has a side effect.
     */
    boolean isReexecutable(ForeignCallDescriptor descriptor);

    /**
     * Gets the set of memory locations killed by a given foreign call. Returning the special value
     * {@link LocationIdentity#any()} denotes that the call kills all memory locations. Returning
     * any empty array denotes that the call does not kill any memory locations.
     */
    LocationIdentity[] getKilledLocations(ForeignCallDescriptor descriptor);

    /**
     * Determines if deoptimization can occur during a given foreign call.
     */
    boolean canDeoptimize(ForeignCallDescriptor descriptor);

    /**
     * Identifies foreign calls which are guaranteed to include a safepoint check.
     */
    boolean isGuaranteedSafepoint(ForeignCallDescriptor descriptor);

    /**
     * Gets the linkage for a foreign call.
     */
    ForeignCallLinkage lookupForeignCall(ForeignCallDescriptor descriptor);
}