Examples with SignExtendNode org.graalvm.compiler.nodes.calc.SignExtendNode used on opensource projects

Example 1 with SignExtendNode

use of org.graalvm.compiler.nodes.calc.SignExtendNode in project graal by oracle.

the class ObjectAccessTest method assertRead.

private static void assertRead(StructuredGraph graph, JavaKind kind, boolean indexConvert, LocationIdentity locationIdentity) {
    JavaReadNode read = (JavaReadNode) graph.start().next();
    Assert.assertEquals(kind.getStackKind(), read.stamp(NodeView.DEFAULT).getStackKind());
    OffsetAddressNode address = (OffsetAddressNode) read.getAddress();
    Assert.assertEquals(graph.getParameter(0), address.getBase());
    Assert.assertEquals(locationIdentity, read.getLocationIdentity());
    if (indexConvert) {
        SignExtendNode convert = (SignExtendNode) address.getOffset();
        Assert.assertEquals(convert.getInputBits(), 32);
        Assert.assertEquals(convert.getResultBits(), 64);
        Assert.assertEquals(graph.getParameter(1), convert.getValue());
    } else {
        Assert.assertEquals(graph.getParameter(1), address.getOffset());
    }
    ReturnNode ret = (ReturnNode) read.next();
    Assert.assertEquals(read, ret.result());
}

Example 2 with SignExtendNode

use of org.graalvm.compiler.nodes.calc.SignExtendNode in project graal by oracle.

the class ObjectAccessTest method assertWrite.

private static void assertWrite(StructuredGraph graph, boolean indexConvert, LocationIdentity locationIdentity) {
    JavaWriteNode write = (JavaWriteNode) graph.start().next();
    Assert.assertEquals(graph.getParameter(2), write.value());
    OffsetAddressNode address = (OffsetAddressNode) write.getAddress();
    Assert.assertEquals(graph.getParameter(0), address.getBase());
    Assert.assertEquals(BytecodeFrame.AFTER_BCI, write.stateAfter().bci);
    Assert.assertEquals(locationIdentity, write.getLocationIdentity());
    if (indexConvert) {
        SignExtendNode convert = (SignExtendNode) address.getOffset();
        Assert.assertEquals(convert.getInputBits(), 32);
        Assert.assertEquals(convert.getResultBits(), 64);
        Assert.assertEquals(graph.getParameter(1), convert.getValue());
    } else {
        Assert.assertEquals(graph.getParameter(1), address.getOffset());
    }
    ReturnNode ret = (ReturnNode) write.next();
    Assert.assertEquals(null, ret.result());
}

Example 3 with SignExtendNode

use of org.graalvm.compiler.nodes.calc.SignExtendNode in project graal by oracle.

the class PointerTest method assertRead.

private void assertRead(StructuredGraph graph, JavaKind kind, boolean indexConvert, LocationIdentity locationIdentity) {
    WordCastNode cast = (WordCastNode) graph.start().next();
    JavaReadNode read = (JavaReadNode) cast.next();
    Assert.assertEquals(kind.getStackKind(), read.stamp(NodeView.DEFAULT).getStackKind());
    OffsetAddressNode address = (OffsetAddressNode) read.getAddress();
    Assert.assertEquals(cast, address.getBase());
    Assert.assertEquals(graph.getParameter(0), cast.getInput());
    Assert.assertEquals(target.wordJavaKind, cast.stamp(NodeView.DEFAULT).getStackKind());
    Assert.assertEquals(locationIdentity, read.getLocationIdentity());
    if (indexConvert) {
        SignExtendNode convert = (SignExtendNode) address.getOffset();
        Assert.assertEquals(convert.getInputBits(), 32);
        Assert.assertEquals(convert.getResultBits(), 64);
        Assert.assertEquals(graph.getParameter(1), convert.getValue());
    } else {
        Assert.assertEquals(graph.getParameter(1), address.getOffset());
    }
    ReturnNode ret = (ReturnNode) read.next();
    Assert.assertEquals(read, ret.result());
}

Example 4 with SignExtendNode

use of org.graalvm.compiler.nodes.calc.SignExtendNode in project graal by oracle.

the class AArch64ReadNode method replace.

/**
 * replace a ReadNode with an AArch64-specific variant which knows how to merge a downstream
 * zero or sign extend into the read operation.
 *
 * @param readNode
 */
public static void replace(ReadNode readNode) {
    assert readNode.getUsageCount() == 1;
    assert readNode.getUsageAt(0) instanceof ZeroExtendNode || readNode.getUsageAt(0) instanceof SignExtendNode;
    ValueNode usage = (ValueNode) readNode.getUsageAt(0);
    boolean isSigned = usage instanceof SignExtendNode;
    IntegerStamp accessStamp = ((IntegerStamp) readNode.getAccessStamp());
    AddressNode address = readNode.getAddress();
    LocationIdentity location = readNode.getLocationIdentity();
    Stamp stamp = usage.stamp(NodeView.DEFAULT);
    GuardingNode guard = readNode.getGuard();
    BarrierType barrierType = readNode.getBarrierType();
    boolean nullCheck = readNode.getNullCheck();
    FrameState stateBefore = readNode.stateBefore();
    AArch64ReadNode clone = new AArch64ReadNode(address, location, stamp, guard, barrierType, nullCheck, stateBefore, accessStamp, isSigned);
    StructuredGraph graph = readNode.graph();
    graph.add(clone);
    // splice out the extend node
    usage.replaceAtUsagesAndDelete(readNode);
    // swap the clone for the read
    graph.replaceFixedWithFixed(readNode, clone);
}

Example 5 with SignExtendNode

use of org.graalvm.compiler.nodes.calc.SignExtendNode in project graal by oracle.

the class JNIJavaCallWrapperMethod method loadAndUnboxArguments.

private List<Pair<ValueNode, ResolvedJavaType>> loadAndUnboxArguments(JNIGraphKit kit, HostedProviders providers, ResolvedJavaMethod invokeMethod, Signature invokeSignature) {
    MetaAccessProvider metaAccess = providers.getMetaAccess();
    List<Pair<ValueNode, ResolvedJavaType>> args = new ArrayList<>();
    int javaIndex = 0;
    javaIndex += metaAccess.lookupJavaType(JNIEnvironment.class).getJavaKind().getSlotCount();
    if (!invokeMethod.isStatic()) {
        JavaKind kind = metaAccess.lookupJavaType(JNIObjectHandle.class).getJavaKind();
        ValueNode handle = kit.loadLocal(javaIndex, kind);
        ValueNode unboxed = kit.unboxHandle(handle);
        ValueNode receiver;
        ResolvedJavaType receiverClass = invokeMethod.getDeclaringClass();
        if (invokeMethod.isConstructor()) {
            /*
                 * Our target method is a constructor and we might be called via `NewObject`, in
                 * which case we need to allocate the object before calling the constructor. We can
                 * detect when this is the case because unlike with `Call<Type>Method`, we are
                 * passed the object hub of our target class in place of the receiver object.
                 */
            Constant hub = providers.getConstantReflection().asObjectHub(receiverClass);
            ConstantNode hubNode = kit.createConstant(hub, JavaKind.Object);
            kit.startIf(kit.unique(new ObjectEqualsNode(unboxed, hubNode)), BranchProbabilityNode.FAST_PATH_PROBABILITY);
            kit.thenPart();
            ValueNode created = kit.append(new NewInstanceNode(receiverClass, true));
            AbstractMergeNode merge = kit.endIf();
            receiver = kit.unique(new ValuePhiNode(StampFactory.object(), merge, new ValueNode[] { created, unboxed }));
        } else {
            receiver = unboxed;
        }
        args.add(Pair.create(receiver, receiverClass));
    }
    javaIndex += metaAccess.lookupJavaType(JNIObjectHandle.class).getJavaKind().getSlotCount();
    if (nonVirtual) {
        javaIndex += metaAccess.lookupJavaType(JNIObjectHandle.class).getJavaKind().getSlotCount();
    }
    javaIndex += metaAccess.lookupJavaType(JNIMethodId.class).getJavaKind().getSlotCount();
    int count = invokeSignature.getParameterCount(false);
    if (callVariant == CallVariant.VARARGS) {
        for (int i = 0; i < count; i++) {
            ResolvedJavaType type = (ResolvedJavaType) invokeSignature.getParameterType(i, null);
            JavaKind kind = type.getJavaKind();
            JavaKind loadKind = kind;
            if (loadKind == JavaKind.Float) {
                // C varargs promote float to double
                loadKind = JavaKind.Double;
            }
            ValueNode value = kit.loadLocal(javaIndex, loadKind);
            if (kind == JavaKind.Float) {
                value = kit.unique(new FloatConvertNode(FloatConvert.D2F, value));
            } else if (kind.isObject()) {
                value = kit.unboxHandle(value);
            }
            args.add(Pair.create(value, type));
            javaIndex += loadKind.getSlotCount();
        }
    } else if (callVariant == CallVariant.ARRAY) {
        ResolvedJavaType elementType = metaAccess.lookupJavaType(JNIValue.class);
        int elementSize = SizeOf.get(JNIValue.class);
        ValueNode array = kit.loadLocal(javaIndex, elementType.getJavaKind());
        for (int i = 0; i < count; i++) {
            ResolvedJavaType type = (ResolvedJavaType) invokeSignature.getParameterType(i, null);
            JavaKind readKind = type.getJavaKind();
            StructFieldInfo fieldInfo = getJNIValueOffsetOf(elementType, readKind);
            int offset = i * elementSize + fieldInfo.getOffsetInfo().getProperty();
            ConstantNode offsetConstant = kit.createConstant(JavaConstant.forInt(offset), providers.getWordTypes().getWordKind());
            OffsetAddressNode address = kit.unique(new OffsetAddressNode(array, offsetConstant));
            LocationIdentity locationIdentity = fieldInfo.getLocationIdentity();
            if (locationIdentity == null) {
                locationIdentity = LocationIdentity.any();
            }
            Stamp readStamp = getNarrowStamp(providers, readKind);
            ValueNode value = kit.append(new CInterfaceReadNode(address, locationIdentity, readStamp, BarrierType.NONE, "args[" + i + "]"));
            JavaKind stackKind = readKind.getStackKind();
            if (readKind != stackKind) {
                assert stackKind.getBitCount() > readKind.getBitCount() : "read kind must be narrower than stack kind";
                if (readKind.isUnsigned()) {
                    // needed or another op may illegally sign-extend
                    value = kit.unique(new ZeroExtendNode(value, stackKind.getBitCount()));
                } else {
                    value = kit.unique(new SignExtendNode(value, stackKind.getBitCount()));
                }
            } else if (readKind.isObject()) {
                value = kit.unboxHandle(value);
            }
            args.add(Pair.create(value, type));
        }
    } else if (callVariant == CallVariant.VA_LIST) {
        ValueNode valist = kit.loadLocal(javaIndex, metaAccess.lookupJavaType(WordBase.class).getJavaKind());
        for (int i = 0; i < count; i++) {
            ResolvedJavaType type = (ResolvedJavaType) invokeSignature.getParameterType(i, null);
            JavaKind loadKind = type.getJavaKind();
            if (loadKind.isObject()) {
                loadKind = providers.getWordTypes().getWordKind();
            }
            ValueNode value = kit.append(new VaListNextArgNode(loadKind, valist));
            if (type.getJavaKind().isObject()) {
                value = kit.unboxHandle(value);
            }
            args.add(Pair.create(value, type));
        }
    } else {
        throw VMError.unsupportedFeature("Call variant: " + callVariant);
    }
    return args;
}