Examples with ConvertDeoptimizeToGuardPhase org.graalvm.compiler.loop.phases.ConvertDeoptimizeToGuardPhase used on opensource projects

Example 6 with ConvertDeoptimizeToGuardPhase

use of org.graalvm.compiler.loop.phases.ConvertDeoptimizeToGuardPhase in project graal by oracle.

the class GraphPrepareMetaAccessExtensionProvider method processMethod.

@SuppressWarnings("try")
private void processMethod(CallTreeNode node, Deque<CallTreeNode> worklist, BigBang bb) {
    AnalysisMethod method = node.implementationMethod;
    assert method.isImplementationInvoked();
    if (node.graph == null) {
        if (method.getAnnotation(Fold.class) != null || method.getAnnotation(NodeIntrinsic.class) != null) {
            throw VMError.shouldNotReachHere("Parsing method annotated with @Fold or @NodeIntrinsic: " + method.format("%H.%n(%p)"));
        }
        if (!method.allowRuntimeCompilation()) {
            throw VMError.shouldNotReachHere("Parsing method that is not available for runtime compilation: " + method.format("%H.%n(%p)"));
        }
        boolean parse = false;
        DebugContext debug = bb.getDebug();
        StructuredGraph graph = method.buildGraph(debug, method, hostedProviders, Purpose.PREPARE_RUNTIME_COMPILATION);
        if (graph == null) {
            if (!method.hasBytecodes()) {
                return;
            }
            parse = true;
            graph = new StructuredGraph.Builder(debug.getOptions(), debug, AllowAssumptions.YES).method(method).build();
        }
        try (DebugContext.Scope scope = debug.scope("RuntimeCompile", graph)) {
            if (parse) {
                RuntimeGraphBuilderPhase builderPhase = new RuntimeGraphBuilderPhase(hostedProviders, graphBuilderConfig, optimisticOpts, null, hostedProviders.getWordTypes(), node);
                builderPhase.apply(graph);
            }
            if (graph.getNodes(StackValueNode.TYPE).isNotEmpty()) {
                /*
                     * Stack allocated memory is not seen by the deoptimization code, i.e., it is
                     * not copied in case of deoptimization. Also, pointers to it can be used for
                     * arbitrary address arithmetic, so we would not know how to update derived
                     * pointers into stack memory during deoptimization. Therefore, we cannot allow
                     * methods that allocate stack memory for runtime compilation. To remove this
                     * limitation, we would need to change how we handle stack allocated memory in
                     * Graal.
                     */
                return;
            }
            CanonicalizerPhase.create().apply(graph, hostedProviders);
            if (deoptimizeOnExceptionPredicate != null) {
                new DeoptimizeOnExceptionPhase(deoptimizeOnExceptionPredicate).apply(graph);
            }
            new ConvertDeoptimizeToGuardPhase().apply(graph, hostedProviders);
            graphEncoder.prepare(graph);
            node.graph = graph;
        } catch (Throwable ex) {
            debug.handle(ex);
        }
    }
    assert node.graph != null;
    List<MethodCallTargetNode> callTargets = node.graph.getNodes(MethodCallTargetNode.TYPE).snapshot();
    callTargets.sort((t1, t2) -> Integer.compare(t1.invoke().bci(), t2.invoke().bci()));
    for (MethodCallTargetNode targetNode : callTargets) {
        AnalysisMethod targetMethod = (AnalysisMethod) targetNode.targetMethod();
        PointsToAnalysisMethod callerMethod = (PointsToAnalysisMethod) targetNode.invoke().stateAfter().getMethod();
        InvokeTypeFlow invokeFlow = callerMethod.getTypeFlow().getOriginalMethodFlows().getInvoke(targetNode.invoke().bci());
        if (invokeFlow == null) {
            continue;
        }
        Collection<AnalysisMethod> allImplementationMethods = invokeFlow.getCallees();
        /*
             * Eventually we want to remove all invokes that are unreachable, i.e., have no
             * implementation. But the analysis is iterative, and we don't know here if we have
             * already reached the fixed point. So we only collect unreachable invokes here, and
             * remove them after the analysis has finished.
             */
        if (allImplementationMethods.size() == 0) {
            node.unreachableInvokes.add(targetNode.invoke());
        } else {
            node.unreachableInvokes.remove(targetNode.invoke());
        }
        List<AnalysisMethod> implementationMethods = new ArrayList<>();
        for (AnalysisMethod implementationMethod : allImplementationMethods) {
            /* Filter out all the implementation methods that have already been processed. */
            if (!methods.containsKey(implementationMethod)) {
                implementationMethods.add(implementationMethod);
            }
        }
        if (implementationMethods.size() > 0) {
            /* Sort to make printing order and method discovery order deterministic. */
            implementationMethods.sort((m1, m2) -> m1.getQualifiedName().compareTo(m2.getQualifiedName()));
            String sourceReference = buildSourceReference(targetNode.invoke().stateAfter());
            for (AnalysisMethod implementationMethod : implementationMethods) {
                CallTreeNode calleeNode = new CallTreeNode(implementationMethod, targetMethod, node, node.level + 1, sourceReference);
                if (includeCalleePredicate.includeCallee(calleeNode, implementationMethods)) {
                    assert !methods.containsKey(implementationMethod);
                    methods.put(implementationMethod, calleeNode);
                    worklist.add(calleeNode);
                    node.children.add(calleeNode);
                    objectReplacer.createMethod(implementationMethod);
                }
                /*
                     * We must compile all methods which may be called. It may be the case that a
                     * call target does not reach the compile queue by default, e.g. if it is
                     * inlined at image generation but not at runtime compilation.
                     */
                CompilationInfoSupport.singleton().registerForcedCompilation(implementationMethod);
            }
        }
    }
}