Examples with G1PreWriteBarrier org.graalvm.compiler.nodes.gc.G1PreWriteBarrier used on opensource projects

Example 1 with G1PreWriteBarrier

use of org.graalvm.compiler.nodes.gc.G1PreWriteBarrier in project graal by oracle.

the class WriteBarrierAdditionTest method verifyBarriers.

private void verifyBarriers(StructuredGraph graph) {
    Assert.assertTrue("Unknown collector selected", knownSupport.contains(runtime().getGarbageCollector()));
    Assert.assertNotEquals("test must set expected barrier count", expectedBarriers, -1);
    int barriers = 0;
    if (config.useG1GC) {
        barriers = graph.getNodes().filter(G1ReferentFieldReadBarrier.class).count() + graph.getNodes().filter(G1PreWriteBarrier.class).count() + graph.getNodes().filter(G1PostWriteBarrier.class).count();
    } else {
        barriers = graph.getNodes().filter(SerialWriteBarrier.class).count();
    }
    if (expectedBarriers != barriers) {
        Assert.assertEquals(expectedBarriers, barriers);
    }
    for (WriteNode write : graph.getNodes().filter(WriteNode.class)) {
        if (config.useG1GC) {
            if (write.getBarrierType() != BarrierType.NONE) {
                Assert.assertEquals(1, write.successors().count());
                Assert.assertTrue(write.next() instanceof G1PostWriteBarrier);
                Assert.assertTrue(write.predecessor() instanceof G1PreWriteBarrier || write.getLocationIdentity().isImmutable());
            }
        } else {
            if (write.getBarrierType() != BarrierType.NONE) {
                Assert.assertEquals(1, write.successors().count());
                Assert.assertTrue(write.next() instanceof SerialWriteBarrier);
            }
        }
    }
    for (ReadNode read : graph.getNodes().filter(ReadNode.class)) {
        if (read.getBarrierType() != BarrierType.NONE) {
            if (read.getAddress() instanceof OffsetAddressNode) {
                JavaConstant constDisp = ((OffsetAddressNode) read.getAddress()).getOffset().asJavaConstant();
                if (constDisp != null) {
                    Assert.assertEquals(referentOffset(getMetaAccess()), constDisp.asLong());
                }
            }
            Assert.assertTrue(BarrierType.WEAK_FIELD == read.getBarrierType() || BarrierType.PHANTOM_FIELD == read.getBarrierType());
            if (config.useG1GC) {
                Assert.assertTrue(read.next() instanceof G1ReferentFieldReadBarrier);
            }
        }
    }
}

Example 2 with G1PreWriteBarrier

use of org.graalvm.compiler.nodes.gc.G1PreWriteBarrier in project graal by oracle.

the class DefaultHotSpotLoweringProvider method lowerWithoutDelegation.

/**
 * Handles the lowering of {@code n} without delegating to plugins or super.
 *
 * @return {@code true} if this method handles lowering of {@code n}
 */
private boolean lowerWithoutDelegation(Node n, LoweringTool tool) {
    StructuredGraph graph = (StructuredGraph) n.graph();
    if (n instanceof Invoke) {
        lowerInvoke((Invoke) n, tool, graph);
    } else if (n instanceof LoadMethodNode) {
        lowerLoadMethodNode((LoadMethodNode) n);
    } else if (n instanceof GetClassNode) {
        lowerGetClassNode((GetClassNode) n, tool, graph);
    } else if (n instanceof StoreHubNode) {
        lowerStoreHubNode((StoreHubNode) n, graph);
    } else if (n instanceof OSRStartNode) {
        lowerOSRStartNode((OSRStartNode) n);
    } else if (n instanceof BytecodeExceptionNode) {
        lowerBytecodeExceptionNode((BytecodeExceptionNode) n);
    } else if (n instanceof InstanceOfNode) {
        InstanceOfNode instanceOfNode = (InstanceOfNode) n;
        if (graph.getGuardsStage().areDeoptsFixed()) {
            instanceofSnippets.lower(instanceOfNode, tool);
        } else {
            if (instanceOfNode.allowsNull()) {
                ValueNode object = instanceOfNode.getValue();
                LogicNode newTypeCheck = graph.addOrUniqueWithInputs(InstanceOfNode.create(instanceOfNode.type(), object, instanceOfNode.profile(), instanceOfNode.getAnchor()));
                LogicNode newNode = LogicNode.or(graph.unique(IsNullNode.create(object)), newTypeCheck, BranchProbabilityNode.NOT_LIKELY_PROFILE);
                instanceOfNode.replaceAndDelete(newNode);
            }
        }
    } else if (n instanceof InstanceOfDynamicNode) {
        InstanceOfDynamicNode instanceOfDynamicNode = (InstanceOfDynamicNode) n;
        if (graph.getGuardsStage().areDeoptsFixed()) {
            instanceofSnippets.lower(instanceOfDynamicNode, tool);
        } else {
            ValueNode mirror = instanceOfDynamicNode.getMirrorOrHub();
            if (mirror.stamp(NodeView.DEFAULT).getStackKind() == JavaKind.Object) {
                ClassGetHubNode classGetHub = graph.unique(new ClassGetHubNode(mirror));
                instanceOfDynamicNode.setMirror(classGetHub);
            }
            if (instanceOfDynamicNode.allowsNull()) {
                ValueNode object = instanceOfDynamicNode.getObject();
                LogicNode newTypeCheck = graph.addOrUniqueWithInputs(InstanceOfDynamicNode.create(graph.getAssumptions(), tool.getConstantReflection(), instanceOfDynamicNode.getMirrorOrHub(), object, false, /* null checked below */
                instanceOfDynamicNode.isExact()));
                LogicNode newNode = LogicNode.or(graph.unique(IsNullNode.create(object)), newTypeCheck, BranchProbabilityNode.NOT_LIKELY_PROFILE);
                instanceOfDynamicNode.replaceAndDelete(newNode);
            }
        }
    } else if (n instanceof ClassIsAssignableFromNode) {
        if (graph.getGuardsStage().areDeoptsFixed()) {
            instanceofSnippets.lower((ClassIsAssignableFromNode) n, tool);
        }
    } else if (n instanceof NewInstanceNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower((NewInstanceNode) n, tool);
        }
    } else if (n instanceof DynamicNewInstanceNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower((DynamicNewInstanceNode) n, tool);
        }
    } else if (n instanceof ValidateNewInstanceClassNode) {
        ValidateNewInstanceClassNode validateNewInstance = (ValidateNewInstanceClassNode) n;
        if (validateNewInstance.getClassClass() == null) {
            JavaConstant classClassMirror = constantReflection.asJavaClass(metaAccess.lookupJavaType(Class.class));
            ConstantNode classClass = ConstantNode.forConstant(classClassMirror, tool.getMetaAccess(), graph);
            validateNewInstance.setClassClass(classClass);
        }
        getAllocationSnippets().lower(validateNewInstance, tool);
    } else if (n instanceof NewArrayNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower((NewArrayNode) n, tool);
        }
    } else if (n instanceof DynamicNewArrayNode) {
        DynamicNewArrayNode dynamicNewArrayNode = (DynamicNewArrayNode) n;
        if (dynamicNewArrayNode.getVoidClass() == null) {
            JavaConstant voidClassMirror = constantReflection.asJavaClass(metaAccess.lookupJavaType(void.class));
            ConstantNode voidClass = ConstantNode.forConstant(voidClassMirror, tool.getMetaAccess(), graph);
            dynamicNewArrayNode.setVoidClass(voidClass);
        }
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower(dynamicNewArrayNode, tool);
        }
    } else if (n instanceof VerifyHeapNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower((VerifyHeapNode) n, tool);
        }
    } else if (n instanceof MonitorEnterNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            monitorSnippets.lower((MonitorEnterNode) n, registers, tool);
        } else {
            loadHubForMonitorEnterNode((MonitorEnterNode) n, tool, graph);
        }
    } else if (n instanceof MonitorExitNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            monitorSnippets.lower((MonitorExitNode) n, registers, tool);
        }
    } else if (n instanceof ArrayCopyNode) {
        arraycopySnippets.lower((ArrayCopyNode) n, tool);
    } else if (n instanceof ArrayCopyWithDelayedLoweringNode) {
        arraycopySnippets.lower((ArrayCopyWithDelayedLoweringNode) n, tool);
    } else if (n instanceof G1PreWriteBarrier) {
        g1WriteBarrierSnippets.lower((G1PreWriteBarrier) n, tool);
    } else if (n instanceof G1PostWriteBarrier) {
        g1WriteBarrierSnippets.lower((G1PostWriteBarrier) n, tool);
    } else if (n instanceof G1ReferentFieldReadBarrier) {
        g1WriteBarrierSnippets.lower((G1ReferentFieldReadBarrier) n, tool);
    } else if (n instanceof SerialWriteBarrier) {
        serialWriteBarrierSnippets.lower((SerialWriteBarrier) n, tool);
    } else if (n instanceof SerialArrayRangeWriteBarrier) {
        serialWriteBarrierSnippets.lower((SerialArrayRangeWriteBarrier) n, tool);
    } else if (n instanceof G1ArrayRangePreWriteBarrier) {
        g1WriteBarrierSnippets.lower((G1ArrayRangePreWriteBarrier) n, tool);
    } else if (n instanceof G1ArrayRangePostWriteBarrier) {
        g1WriteBarrierSnippets.lower((G1ArrayRangePostWriteBarrier) n, tool);
    } else if (n instanceof NewMultiArrayNode) {
        if (graph.getGuardsStage().areFrameStatesAtDeopts()) {
            getAllocationSnippets().lower((NewMultiArrayNode) n, tool);
        }
    } else if (n instanceof LoadExceptionObjectNode) {
        exceptionObjectSnippets.lower((LoadExceptionObjectNode) n, registers, tool);
    } else if (n instanceof AssertionNode) {
        assertionSnippets.lower((AssertionNode) n, tool);
    } else if (n instanceof LogNode) {
        logSnippets.lower((LogNode) n, tool);
    } else if (n instanceof StringToBytesNode) {
        if (graph.getGuardsStage().areDeoptsFixed()) {
            stringToBytesSnippets.lower((StringToBytesNode) n, tool);
        }
    } else if (n instanceof IntegerDivRemNode) {
    // Nothing to do for division nodes. The HotSpot signal handler catches divisions by
    // zero and the MIN_VALUE / -1 cases.
    } else if (n instanceof AbstractDeoptimizeNode || n instanceof UnwindNode || n instanceof RemNode || n instanceof SafepointNode) {
    /* No lowering, we generate LIR directly for these nodes. */
    } else if (n instanceof ClassGetHubNode) {
        lowerClassGetHubNode((ClassGetHubNode) n, tool);
    } else if (n instanceof HubGetClassNode) {
        lowerHubGetClassNode((HubGetClassNode) n, tool);
    } else if (n instanceof KlassLayoutHelperNode) {
        lowerKlassLayoutHelperNode((KlassLayoutHelperNode) n, tool);
    } else if (n instanceof KlassBeingInitializedCheckNode) {
        getAllocationSnippets().lower((KlassBeingInitializedCheckNode) n, tool);
    } else if (n instanceof FastNotifyNode) {
        if (graph.getGuardsStage() == GuardsStage.AFTER_FSA) {
            objectSnippets.lower(n, tool);
        }
    } else if (n instanceof UnsafeCopyMemoryNode) {
        if (graph.getGuardsStage() == GuardsStage.AFTER_FSA) {
            unsafeSnippets.lower((UnsafeCopyMemoryNode) n, tool);
        }
    } else if (n instanceof RegisterFinalizerNode) {
        lowerRegisterFinalizer((RegisterFinalizerNode) n, tool);
    } else if (n instanceof DeadEndNode) {
        lowerDeadEnd((DeadEndNode) n);
    } else {
        return false;
    }
    return true;
}