com.oracle.truffle.nfi.backend.libffi.FunctionExecuteNodeGen Maven / Gradle / Ivy

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// CheckStyle: start generated
package com.oracle.truffle.nfi.backend.libffi;

import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.TruffleLanguage;
import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.dsl.GenerateAOT;
import com.oracle.truffle.api.dsl.GeneratedBy;
import com.oracle.truffle.api.interop.ArityException;
import com.oracle.truffle.api.interop.UnsupportedTypeException;
import com.oracle.truffle.api.nodes.DenyReplace;
import com.oracle.truffle.api.nodes.DirectCallNode;
import com.oracle.truffle.api.nodes.ExplodeLoop;
import com.oracle.truffle.api.nodes.IndirectCallNode;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.nodes.NodeCost;
import com.oracle.truffle.api.nodes.RootNode;
import com.oracle.truffle.nfi.backend.libffi.LibFFISignature.CachedSignatureInfo;
import java.lang.invoke.VarHandle;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

@GeneratedBy(FunctionExecuteNode.class)
final class FunctionExecuteNodeGen extends FunctionExecuteNode implements GenerateAOT.Provider {

    private static final Uncached UNCACHED = new Uncached();

    @CompilationFinal private volatile int state_0_;
    @CompilationFinal private volatile int exclude_;
    @Child private CachedSignatureData cachedSignature_cache;
    @Child private IndirectCallNode genericExecute_execute_;

    private FunctionExecuteNodeGen() {
    }

    @ExplodeLoop
    @Override
    public Object execute(long arg0Value, LibFFISignature arg1Value, Object[] arg2Value) throws ArityException, UnsupportedTypeException {
        int state_0 = this.state_0_;
        if (CompilerDirectives.inInterpreter() && (state_0 & 0b1) != 0 /* is-state_0 AOT-prepared */) {
            return executeAndSpecialize(arg0Value, arg1Value, arg2Value);
        }
        if ((state_0 & 0b110) != 0 /* is-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) || genericExecute(long, LibFFISignature, Object[], IndirectCallNode) */) {
            if ((state_0 & 0b10) != 0 /* is-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */) {
                CachedSignatureData s0_ = this.cachedSignature_cache;
                while (s0_ != null) {
                    if ((arg1Value.signatureInfo == s0_.cachedInfo_)) {
                        return cachedSignature(arg0Value, arg1Value, arg2Value, s0_.cachedInfo_, s0_.execute_);
                    }
                    s0_ = s0_.next_;
                }
            }
            if ((state_0 & 0b100) != 0 /* is-state_0 genericExecute(long, LibFFISignature, Object[], IndirectCallNode) */) {
                return FunctionExecuteNode.genericExecute(arg0Value, arg1Value, arg2Value, this.genericExecute_execute_);
            }
        }
        CompilerDirectives.transferToInterpreterAndInvalidate();
        return executeAndSpecialize(arg0Value, arg1Value, arg2Value);
    }

    private Object executeAndSpecialize(long arg0Value, LibFFISignature arg1Value, Object[] arg2Value) {
        Lock lock = getLock();
        boolean hasLock = true;
        lock.lock();
        try {
            if ((this.state_0_ & 0b1) != 0 /* is-state_0 AOT-prepared */) {
                this.resetAOT_();
            }
            int state_0 = this.state_0_;
            int exclude = this.exclude_;
            if ((exclude) == 0 /* is-not-exclude cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */) {
                int count0_ = 0;
                CachedSignatureData s0_ = this.cachedSignature_cache;
                if ((state_0 & 0b10) != 0 /* is-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */) {
                    while (s0_ != null) {
                        if ((arg1Value.signatureInfo == s0_.cachedInfo_)) {
                            break;
                        }
                        s0_ = s0_.next_;
                        count0_++;
                    }
                }
                if (s0_ == null) {
                    // assert (arg1Value.signatureInfo == s0_.cachedInfo_);
                    if (count0_ < (3)) {
                        s0_ = super.insert(new CachedSignatureData(cachedSignature_cache));
                        s0_.cachedInfo_ = (arg1Value.signatureInfo);
                        s0_.execute_ = s0_.insertAccessor((FunctionExecuteNode.createCachedSignatureCall(s0_.cachedInfo_)));
                        VarHandle.storeStoreFence();
                        this.cachedSignature_cache = s0_;
                        this.state_0_ = state_0 = state_0 | 0b10 /* add-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */;
                    }
                }
                if (s0_ != null) {
                    lock.unlock();
                    hasLock = false;
                    return cachedSignature(arg0Value, arg1Value, arg2Value, s0_.cachedInfo_, s0_.execute_);
                }
            }
            this.genericExecute_execute_ = super.insert((IndirectCallNode.create()));
            this.exclude_ = exclude = exclude | 0b1 /* add-exclude cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */;
            this.cachedSignature_cache = null;
            state_0 = state_0 & 0xfffffffd /* remove-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */;
            this.state_0_ = state_0 = state_0 | 0b100 /* add-state_0 genericExecute(long, LibFFISignature, Object[], IndirectCallNode) */;
            lock.unlock();
            hasLock = false;
            return FunctionExecuteNode.genericExecute(arg0Value, arg1Value, arg2Value, this.genericExecute_execute_);
        } finally {
            if (hasLock) {
                lock.unlock();
            }
        }
    }

    @Override
    public NodeCost getCost() {
        int state_0 = this.state_0_;
        if ((state_0 & 0b110) == 0) {
            return NodeCost.UNINITIALIZED;
        } else {
            if (((state_0 & 0b110) & ((state_0 & 0b110) - 1)) == 0 /* is-single-state_0  */) {
                CachedSignatureData s0_ = this.cachedSignature_cache;
                if ((s0_ == null || s0_.next_ == null)) {
                    return NodeCost.MONOMORPHIC;
                }
            }
        }
        return NodeCost.POLYMORPHIC;
    }

    @Override
    public void prepareForAOT(TruffleLanguage language, RootNode root) {
        assert !isAdoptable() || ((ReentrantLock) getLock()).isHeldByCurrentThread() : "During prepare AST lock must be held.";
        int state_0 = this.state_0_;
        if ((state_0 & 0b1) != 0 /* is-state_0 AOT-prepared */) {
            return;
        }
        this.genericExecute_execute_ = super.insert((IndirectCallNode.create()));
        this.exclude_ = this.exclude_ | 0b1 /* add-exclude cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */;
        this.cachedSignature_cache = null;
        state_0 = state_0 & 0xfffffffd /* remove-state_0 cachedSignature(long, LibFFISignature, Object[], CachedSignatureInfo, DirectCallNode) */;
        this.state_0_ = state_0 = state_0 | 0b101 /* add-state_0 AOT-prepared, genericExecute(long, LibFFISignature, Object[], IndirectCallNode) */;
    }

    private void resetAOT_() {
        int state_0 = this.state_0_;
        if (((state_0 & 0b1)) == 0 /* is-not-state_0 AOT-prepared */) {
            return;
        }
        this.state_0_ = 0;
        this.exclude_ = 0;
    }

    public static FunctionExecuteNode create() {
        return new FunctionExecuteNodeGen();
    }

    public static FunctionExecuteNode getUncached() {
        return FunctionExecuteNodeGen.UNCACHED;
    }

    @GeneratedBy(FunctionExecuteNode.class)
    private static final class CachedSignatureData extends Node {

        @Child CachedSignatureData next_;
        @CompilationFinal CachedSignatureInfo cachedInfo_;
        @Child DirectCallNode execute_;

        CachedSignatureData(CachedSignatureData next_) {
            this.next_ = next_;
        }

        @Override
        public NodeCost getCost() {
            return NodeCost.NONE;
        }

         T insertAccessor(T node) {
            return super.insert(node);
        }

    }
    @GeneratedBy(FunctionExecuteNode.class)
    @DenyReplace
    private static final class Uncached extends FunctionExecuteNode {

        @TruffleBoundary
        @Override
        public Object execute(long arg0Value, LibFFISignature arg1Value, Object[] arg2Value) throws ArityException, UnsupportedTypeException {
            return FunctionExecuteNode.genericExecute(arg0Value, arg1Value, arg2Value, (IndirectCallNode.getUncached()));
        }

        @Override
        public NodeCost getCost() {
            return NodeCost.MEGAMORPHIC;
        }

        @Override
        public boolean isAdoptable() {
            return false;
        }

    }
}