Examples with SchedulingStrategy org.graalvm.compiler.phases.schedule.SchedulePhase.SchedulingStrategy used on opensource projects

Example 1 with SchedulingStrategy

use of org.graalvm.compiler.phases.schedule.SchedulePhase.SchedulingStrategy in project graal by oracle.

the class LongNodeChainTest method longAddChain.

private void longAddChain(boolean reverse) {
    HighTierContext context = getDefaultHighTierContext();
    OptionValues options = getInitialOptions();
    StructuredGraph graph = new StructuredGraph.Builder(options, DebugContext.create(options, DebugHandlersFactory.LOADER)).build();
    ValueNode constant = graph.unique(ConstantNode.forPrimitive(JavaConstant.INT_1));
    ValueNode value = null;
    if (reverse) {
        // Make sure the constant's stamp is not used to infer the add node's stamp.
        OpaqueNode opaque = graph.unique(new OpaqueNode(constant));
        constant = opaque;
        AddNode addNode = graph.unique(new AddNode(constant, constant));
        value = addNode;
        for (int i = 1; i < N; ++i) {
            AddNode newAddNode = graph.addWithoutUnique(new AddNode(constant, constant));
            addNode.setY(newAddNode);
            addNode = newAddNode;
        }
        opaque.replaceAndDelete(opaque.getValue());
    } else {
        value = constant;
        for (int i = 0; i < N; ++i) {
            value = graph.unique(new AddNode(constant, value));
        }
    }
    ReturnNode returnNode = graph.add(new ReturnNode(value));
    graph.start().setNext(returnNode);
    for (SchedulingStrategy s : Strategies) {
        new SchedulePhase(s).apply(graph);
    }
    new CanonicalizerPhase().apply(graph, context);
    JavaConstant asConstant = (JavaConstant) returnNode.result().asConstant();
    Assert.assertEquals(N + 1, asConstant.asInt());
}