Examples with AddressNode org.graalvm.compiler.nodes.memory.address.AddressNode used on opensource projects

Example 41 with AddressNode

use of org.graalvm.compiler.nodes.memory.address.AddressNode in project graal by oracle.

the class PEGraphDecoderTest method registerPlugins.

private static void registerPlugins(InvocationPlugins plugins) {
    Registration r = new Registration(plugins, PEGraphDecoderTest.class);
    r.register2("readInt", Object.class, long.class, new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unused, ValueNode obj, ValueNode offset) {
            AddressNode address = b.add(new OffsetAddressNode(obj, offset));
            ReadNode read = b.addPush(JavaKind.Int, new ReadNode(address, LocationIdentity.any(), StampFactory.forKind(JavaKind.Int), BarrierType.NONE));
            read.setGuard(AbstractBeginNode.prevBegin(read));
            return true;
        }
    });
}

Example 42 with AddressNode

use of org.graalvm.compiler.nodes.memory.address.AddressNode in project graal by oracle.

the class AMD64GraphBuilderPlugins method registerUnsafePlugins.

private static void registerUnsafePlugins(InvocationPlugins plugins, BytecodeProvider replacementsBytecodeProvider) {
    Registration r;
    if (Java8OrEarlier) {
        r = new Registration(plugins, Unsafe.class);
    } else {
        r = new Registration(plugins, "jdk.internal.misc.Unsafe", replacementsBytecodeProvider);
    }
    for (JavaKind kind : new JavaKind[] { JavaKind.Int, JavaKind.Long, JavaKind.Object }) {
        Class<?> javaClass = kind == JavaKind.Object ? Object.class : kind.toJavaClass();
        r.register4("getAndSet" + kind.name(), Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {

            @Override
            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unsafe, ValueNode object, ValueNode offset, ValueNode value) {
                // Emits a null-check for the otherwise unused receiver
                unsafe.get();
                b.addPush(kind, new AtomicReadAndWriteNode(object, offset, value, kind, LocationIdentity.any()));
                b.getGraph().markUnsafeAccess();
                return true;
            }
        });
        if (kind != JavaKind.Object) {
            r.register4("getAndAdd" + kind.name(), Receiver.class, Object.class, long.class, javaClass, new InvocationPlugin() {

                @Override
                public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unsafe, ValueNode object, ValueNode offset, ValueNode delta) {
                    // Emits a null-check for the otherwise unused receiver
                    unsafe.get();
                    AddressNode address = b.add(new OffsetAddressNode(object, offset));
                    b.addPush(kind, new AtomicReadAndAddNode(address, delta, LocationIdentity.any()));
                    b.getGraph().markUnsafeAccess();
                    return true;
                }
            });
        }
    }
    for (JavaKind kind : new JavaKind[] { JavaKind.Char, JavaKind.Short, JavaKind.Int, JavaKind.Long }) {
        Class<?> javaClass = kind.toJavaClass();
        r.registerOptional3("get" + kind.name() + "Unaligned", Receiver.class, Object.class, long.class, new UnsafeGetPlugin(kind, false));
        r.registerOptional4("put" + kind.name() + "Unaligned", Receiver.class, Object.class, long.class, javaClass, new UnsafePutPlugin(kind, false));
    }
}

Example 43 with AddressNode

use of org.graalvm.compiler.nodes.memory.address.AddressNode in project graal by oracle.

the class UseTrappingNullChecksPhase method replaceWithTrappingNullCheck.

private static void replaceWithTrappingNullCheck(AbstractDeoptimizeNode deopt, IfNode ifNode, LogicNode condition, DeoptimizationReason deoptimizationReason, long implicitNullCheckLimit) {
    DebugContext debug = deopt.getDebug();
    counterTrappingNullCheck.increment(debug);
    if (deopt instanceof DynamicDeoptimizeNode) {
        counterTrappingNullCheckDynamicDeoptimize.increment(debug);
    }
    if (deoptimizationReason == DeoptimizationReason.UnreachedCode) {
        counterTrappingNullCheckUnreached.increment(debug);
    }
    IsNullNode isNullNode = (IsNullNode) condition;
    AbstractBeginNode nonTrappingContinuation = ifNode.falseSuccessor();
    AbstractBeginNode trappingContinuation = ifNode.trueSuccessor();
    DeoptimizingFixedWithNextNode trappingNullCheck = null;
    FixedNode nextNonTrapping = nonTrappingContinuation.next();
    ValueNode value = isNullNode.getValue();
    if (OptImplicitNullChecks.getValue(ifNode.graph().getOptions()) && implicitNullCheckLimit > 0) {
        if (nextNonTrapping instanceof FixedAccessNode) {
            FixedAccessNode fixedAccessNode = (FixedAccessNode) nextNonTrapping;
            if (fixedAccessNode.canNullCheck()) {
                AddressNode address = fixedAccessNode.getAddress();
                ValueNode base = address.getBase();
                ValueNode index = address.getIndex();
                // intervening uncompress out of the address chain
                if (base != null && base instanceof CompressionNode) {
                    base = ((CompressionNode) base).getValue();
                }
                if (index != null && index instanceof CompressionNode) {
                    index = ((CompressionNode) index).getValue();
                }
                if (((base == value && index == null) || (base == null && index == value)) && address.getMaxConstantDisplacement() < implicitNullCheckLimit) {
                    // Opportunity for implicit null check as part of an existing read found!
                    fixedAccessNode.setStateBefore(deopt.stateBefore());
                    fixedAccessNode.setNullCheck(true);
                    deopt.graph().removeSplit(ifNode, nonTrappingContinuation);
                    trappingNullCheck = fixedAccessNode;
                    counterTrappingNullCheckExistingRead.increment(debug);
                }
            }
        }
    }
    if (trappingNullCheck == null) {
        // Need to add a null check node.
        trappingNullCheck = deopt.graph().add(new NullCheckNode(value));
        deopt.graph().replaceSplit(ifNode, trappingNullCheck, nonTrappingContinuation);
    }
    trappingNullCheck.setStateBefore(deopt.stateBefore());
    /*
         * We now have the pattern NullCheck/BeginNode/... It's possible some node is using the
         * BeginNode as a guard input, so replace guard users of the Begin with the NullCheck and
         * then remove the Begin from the graph.
         */
    nonTrappingContinuation.replaceAtUsages(InputType.Guard, trappingNullCheck);
    if (nonTrappingContinuation instanceof BeginNode) {
        GraphUtil.unlinkFixedNode(nonTrappingContinuation);
        nonTrappingContinuation.safeDelete();
    }
    GraphUtil.killCFG(trappingContinuation);
    GraphUtil.tryKillUnused(isNullNode);
}