Examples with GetObjectAddressNode org.graalvm.compiler.nodes.GetObjectAddressNode used on opensource projects

Example 1 with GetObjectAddressNode

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

the class GenericArrayCopyCallNode method objectAddress.

private ValueNode objectAddress(ValueNode obj) {
    GetObjectAddressNode result = graph().add(new GetObjectAddressNode(obj));
    graph().addBeforeFixed(this, result);
    return result;
}

Example 2 with GetObjectAddressNode

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

the class CheckcastArrayCopyCallNode method computeBase.

private ValueNode computeBase(LoweringTool tool, ValueNode base, ValueNode pos) {
    FixedWithNextNode basePtr = graph().add(new GetObjectAddressNode(base));
    graph().addBeforeFixed(this, basePtr);
    int shift = CodeUtil.log2(tool.getMetaAccess().getArrayIndexScale(JavaKind.Object));
    ValueNode extendedPos = IntegerConvertNode.convert(pos, StampFactory.forKind(wordKind), graph(), NodeView.DEFAULT);
    ValueNode scaledIndex = graph().unique(new LeftShiftNode(extendedPos, ConstantNode.forInt(shift, graph())));
    ValueNode offset = graph().unique(new AddNode(scaledIndex, ConstantNode.forIntegerBits(PrimitiveStamp.getBits(scaledIndex.stamp(NodeView.DEFAULT)), tool.getMetaAccess().getArrayBaseOffset(JavaKind.Object), graph())));
    return graph().unique(new OffsetAddressNode(basePtr, offset));
}

Example 3 with GetObjectAddressNode

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

the class DefaultJavaLoweringProvider method lowerComputeObjectAddressNode.

private static void lowerComputeObjectAddressNode(ComputeObjectAddressNode n) {
    /*
         * Lower the node into a GetObjectAddressNode node and an Add but ensure that it's below any
         * potential safepoints and above it's uses.
         */
    for (Node use : n.usages().snapshot()) {
        FixedNode fixed;
        if (use instanceof FixedNode) {
            fixed = (FixedNode) use;
        } else if (use instanceof ValuePhiNode) {
            ValuePhiNode phi = (ValuePhiNode) use;
            int inputPosition = 0;
            while (inputPosition < phi.valueCount()) {
                if (phi.valueAt(inputPosition) == n) {
                    break;
                }
                inputPosition++;
            }
            GraalError.guarantee(inputPosition < phi.valueCount(), "Failed to find expected input");
            fixed = phi.merge().phiPredecessorAt(inputPosition);
        } else {
            throw GraalError.shouldNotReachHere("Unexpected floating use of ComputeObjectAddressNode " + n);
        }
        StructuredGraph graph = n.graph();
        GetObjectAddressNode address = graph.add(new GetObjectAddressNode(n.getObject()));
        graph.addBeforeFixed(fixed, address);
        AddNode add = graph.addOrUnique(new AddNode(address, n.getOffset()));
        use.replaceFirstInput(n, add);
    }
    GraphUtil.unlinkFixedNode(n);
    n.safeDelete();
}

Example 4 with GetObjectAddressNode

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

the class ArrayCopyCallNode method computeBase.

private ValueNode computeBase(LoweringTool tool, ValueNode base, ValueNode pos) {
    FixedWithNextNode basePtr = graph().add(new GetObjectAddressNode(base));
    graph().addBeforeFixed(this, basePtr);
    Stamp wordStamp = StampFactory.forKind(wordJavaKind);
    ValueNode wordPos = IntegerConvertNode.convert(pos, wordStamp, graph(), NodeView.DEFAULT);
    int shift = CodeUtil.log2(tool.getMetaAccess().getArrayIndexScale(elementKind));
    ValueNode scaledIndex = graph().unique(new LeftShiftNode(wordPos, ConstantNode.forInt(shift, graph())));
    ValueNode offset = graph().unique(new AddNode(scaledIndex, ConstantNode.forIntegerStamp(wordStamp, tool.getMetaAccess().getArrayBaseOffset(elementKind), graph())));
    return graph().unique(new OffsetAddressNode(basePtr, offset));
}