Examples with BlackholeNode org.graalvm.compiler.nodes.debug.BlackholeNode used on opensource projects

Example 1 with BlackholeNode

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

the class PartialEscapeAnalysisTreesTest method testGraph.

/**
 * Prepare a graph that includes some blackholes and then remove the blackholes and compile
 * normally to create an unusual situation for PEA.
 */
@SuppressWarnings("try")
public void testGraph(String name) {
    ResolvedJavaMethod method = getResolvedJavaMethod(name);
    prepareGraph(name, true);
    try (DebugContext.Scope s = graph.getDebug().scope(getClass(), method, getCodeCache(), graph)) {
        for (BlackholeNode node : graph.getNodes().filter(BlackholeNode.class)) {
            graph.removeFixed(node);
        }
        new DeadCodeEliminationPhase().apply(graph);
        new CanonicalizerPhase().apply(graph, context);
        InstalledCode code = getCode(method, graph, true);
        GraalCompilerTest.Result r = executeExpected(method, null, true);
        int expectedInstances = ((TreeNode) r.returnValue).countInstances();
        TreeNode r2 = (TreeNode) code.executeVarargs(true);
        Assert.assertEquals("Wrong number of nodes in tree", expectedInstances, r2.countInstances());
        r = executeExpected(method, null, false);
        expectedInstances = ((TreeNode) r.returnValue).countInstances();
        r2 = (TreeNode) code.executeVarargs(false);
        Assert.assertEquals("Wrong number of nodes in tree", expectedInstances, r2.countInstances());
    } catch (Throwable e) {
        throw graph.getDebug().handle(e);
    }
}

Example 2 with BlackholeNode

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

the class UncheckedInterfaceProviderTest method test.

@Test
public void test() {
    StructuredGraph graph = parseEager("snippet", StructuredGraph.AllowAssumptions.YES);
    for (BlackholeNode b : graph.getNodes().filter(BlackholeNode.class)) {
        Assert.assertThat(b.getValue(), is(instanceOf(UncheckedInterfaceProvider.class)));
        Stamp uncheckedStamp = ((UncheckedInterfaceProvider) b.getValue()).uncheckedStamp();
        String context = b.getValue().toString(Verbosity.Debugger);
        Assert.assertNotNull(context, uncheckedStamp);
        ResolvedJavaType uncheckedType = StampTool.typeOrNull(uncheckedStamp);
        ResolvedJavaType type = StampTool.typeOrNull(b.getValue());
        Assert.assertEquals(context, arrayDepth(type), arrayDepth(uncheckedType));
        Assert.assertTrue(context + ": " + type, type == null || type.getElementalType().isJavaLangObject());
        Assert.assertNotNull(context, uncheckedType);
        Assert.assertTrue(context, uncheckedType.getElementalType().isInterface());
    }
}

Example 3 with BlackholeNode

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

the class StandardGraphBuilderPlugins method registerGraalDirectivesPlugins.

private static void registerGraalDirectivesPlugins(InvocationPlugins plugins) {
    Registration r = new Registration(plugins, GraalDirectives.class);
    r.register0("deoptimize", new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            b.add(new DeoptimizeNode(DeoptimizationAction.None, DeoptimizationReason.TransferToInterpreter));
            return true;
        }
    });
    r.register0("deoptimizeAndInvalidate", new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            b.add(new DeoptimizeNode(DeoptimizationAction.InvalidateReprofile, DeoptimizationReason.TransferToInterpreter));
            return true;
        }
    });
    r.register0("deoptimizeAndInvalidateWithSpeculation", new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            GraalError.guarantee(b.getGraph().getSpeculationLog() != null, "A speculation log is need to use `deoptimizeAndInvalidateWithSpeculation`");
            BytecodePosition pos = new BytecodePosition(null, b.getMethod(), b.bci());
            DirectiveSpeculationReason reason = new DirectiveSpeculationReason(pos);
            JavaConstant speculation;
            if (b.getGraph().getSpeculationLog().maySpeculate(reason)) {
                speculation = b.getGraph().getSpeculationLog().speculate(reason);
            } else {
                speculation = JavaConstant.defaultForKind(JavaKind.Object);
            }
            b.add(new DeoptimizeNode(DeoptimizationAction.InvalidateReprofile, DeoptimizationReason.TransferToInterpreter, speculation));
            return true;
        }
    });
    r.register0("inCompiledCode", new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            b.addPush(JavaKind.Boolean, ConstantNode.forBoolean(true));
            return true;
        }
    });
    r.register0("controlFlowAnchor", new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            b.add(new ControlFlowAnchorNode());
            return true;
        }
    });
    r.register2("injectBranchProbability", double.class, boolean.class, new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode probability, ValueNode condition) {
            b.addPush(JavaKind.Boolean, new BranchProbabilityNode(probability, condition));
            return true;
        }
    });
    InvocationPlugin blackholePlugin = new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) {
            b.add(new BlackholeNode(value));
            return true;
        }
    };
    InvocationPlugin bindToRegisterPlugin = new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) {
            b.add(new BindToRegisterNode(value));
            return true;
        }
    };
    for (JavaKind kind : JavaKind.values()) {
        if ((kind.isPrimitive() && kind != JavaKind.Void) || kind == JavaKind.Object) {
            Class<?> javaClass = kind == JavaKind.Object ? Object.class : kind.toJavaClass();
            r.register1("blackhole", javaClass, blackholePlugin);
            r.register1("bindToRegister", javaClass, bindToRegisterPlugin);
            r.register1("opaque", javaClass, new InvocationPlugin() {

                @Override
                public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) {
                    b.addPush(kind, new OpaqueNode(value));
                    return true;
                }
            });
        }
    }
    InvocationPlugin spillPlugin = new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
            b.add(new SpillRegistersNode());
            return true;
        }
    };
    r.register0("spillRegisters", spillPlugin);
    r.register1("guardingNonNull", Object.class, new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode value) {
            b.addPush(value.getStackKind(), b.nullCheckedValue(value));
            return true;
        }
    });
    r.register1("ensureVirtualized", Object.class, new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode object) {
            b.add(new EnsureVirtualizedNode(object, false));
            return true;
        }
    });
    r.register1("ensureVirtualizedHere", Object.class, new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode object) {
            b.add(new EnsureVirtualizedNode(object, true));
            return true;
        }
    });
}

Example 4 with BlackholeNode

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

the class StandardGraphBuilderPlugins method registerJMHBlackholePlugins.

private static void registerJMHBlackholePlugins(InvocationPlugins plugins, BytecodeProvider bytecodeProvider) {
    InvocationPlugin blackholePlugin = new InvocationPlugin() {

        @Override
        public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver blackhole, ValueNode value) {
            blackhole.get();
            b.add(new BlackholeNode(value));
            return true;
        }
    };
    String[] names = { "org.openjdk.jmh.infra.Blackhole", "org.openjdk.jmh.logic.BlackHole" };
    for (String name : names) {
        Registration r = new Registration(plugins, name, bytecodeProvider);
        for (JavaKind kind : JavaKind.values()) {
            if ((kind.isPrimitive() && kind != JavaKind.Void) || kind == JavaKind.Object) {
                Class<?> javaClass = kind == JavaKind.Object ? Object.class : kind.toJavaClass();
                r.registerOptional2("consume", Receiver.class, javaClass, blackholePlugin);
            }
        }
        r.registerOptional2("consume", Receiver.class, Object[].class, blackholePlugin);
    }
}