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

Example 66 with FrameState

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

the class PoorMansEATest method test.

@SuppressWarnings("try")
private void test(final String snippet) {
    DebugContext debug = getDebugContext();
    try (DebugContext.Scope s = debug.scope("PoorMansEATest", new DebugDumpScope(snippet))) {
        StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO);
        HighTierContext highTierContext = getDefaultHighTierContext();
        new InliningPhase(new CanonicalizerPhase()).apply(graph, highTierContext);
        PhaseContext context = new PhaseContext(getProviders());
        new LoweringPhase(new CanonicalizerPhase(), LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context);
        // remove framestates in order to trigger the simplification.
        cleanup: for (FrameState fs : graph.getNodes(FrameState.TYPE).snapshot()) {
            for (Node input : fs.inputs()) {
                if (input instanceof NewInstanceNode) {
                    fs.replaceAtUsages(null);
                    fs.safeDelete();
                    continue cleanup;
                }
            }
        }
        new CanonicalizerPhase().apply(graph, context);
    } catch (Throwable e) {
        throw debug.handle(e);
    }
}

Example 67 with FrameState

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

the class CFGPrinter method stateToString.

private String stateToString(FrameState state) {
    StringBuilder buf = new StringBuilder();
    FrameState curState = state;
    do {
        buf.append(Bytecode.toLocation(curState.getCode(), curState.bci)).append('\n');
        if (curState.stackSize() > 0) {
            buf.append("stack: ");
            for (int i = 0; i < curState.stackSize(); i++) {
                buf.append(stateValueToString(curState.stackAt(i))).append(' ');
            }
            buf.append("\n");
        }
        buf.append("locals: ");
        for (int i = 0; i < curState.localsSize(); i++) {
            buf.append(stateValueToString(curState.localAt(i))).append(' ');
        }
        buf.append("\n");
        buf.append("locks: ");
        for (int i = 0; i < curState.locksSize(); i++) {
            buf.append(stateValueToString(curState.lockAt(i))).append(' ');
        }
        buf.append("\n");
        curState = curState.outerFrameState();
    } while (curState != null);
    return buf.toString();
}

Example 68 with FrameState

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

the class InliningUtil method handleAfterBciFrameState.

private static FrameState handleAfterBciFrameState(FrameState frameState, Invoke invoke, boolean alwaysDuplicateStateAfter) {
    FrameState stateAtReturn = invoke.stateAfter();
    JavaKind invokeReturnKind = invoke.asNode().getStackKind();
    FrameState stateAfterReturn = stateAtReturn;
    if (frameState.getCode() == null) {
        // that was parsed for post-parse intrinsification
        for (Node usage : frameState.usages()) {
            if (usage instanceof ForeignCallNode) {
                // A foreign call inside an intrinsic needs to have
                // the BCI of the invoke being intrinsified
                ForeignCallNode foreign = (ForeignCallNode) usage;
                foreign.setBci(invoke.bci());
            }
        }
    }
    // value (top of stack)
    assert !frameState.rethrowException() : frameState;
    if (frameState.stackSize() > 0 && (alwaysDuplicateStateAfter || stateAfterReturn.stackAt(0) != frameState.stackAt(0))) {
        // A non-void return value.
        stateAfterReturn = stateAtReturn.duplicateModified(invokeReturnKind, invokeReturnKind, frameState.stackAt(0));
    } else {
        // A void return value.
        stateAfterReturn = stateAtReturn.duplicate();
    }
    assert stateAfterReturn.bci != BytecodeFrame.UNKNOWN_BCI;
    // Return value does no longer need to be limited by the monitor exit.
    for (MonitorExitNode n : frameState.usages().filter(MonitorExitNode.class)) {
        n.clearEscapedReturnValue();
    }
    frameState.replaceAndDelete(stateAfterReturn);
    return stateAfterReturn;
}

Example 69 with FrameState

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

the class InliningUtil method processFrameStates.

protected static void processFrameStates(Invoke invoke, StructuredGraph inlineGraph, EconomicMap<Node, Node> duplicates, FrameState stateAtExceptionEdge, boolean alwaysDuplicateStateAfter) {
    FrameState stateAtReturn = invoke.stateAfter();
    FrameState outerFrameState = null;
    JavaKind invokeReturnKind = invoke.asNode().getStackKind();
    EconomicMap<Node, Node> replacements = EconomicMap.create();
    for (FrameState original : inlineGraph.getNodes(FrameState.TYPE)) {
        FrameState frameState = (FrameState) duplicates.get(original);
        if (frameState != null && frameState.isAlive()) {
            if (outerFrameState == null) {
                outerFrameState = stateAtReturn.duplicateModifiedDuringCall(invoke.bci(), invokeReturnKind);
            }
            processFrameState(frameState, invoke, replacements, inlineGraph.method(), stateAtExceptionEdge, outerFrameState, alwaysDuplicateStateAfter, invoke.callTarget().targetMethod(), invoke.callTarget().arguments());
        }
    }
    // If processing the frame states replaced any nodes, update the duplicates map.
    duplicates.replaceAll((key, value) -> replacements.containsKey(value) ? replacements.get(value) : value);
}

Example 70 with FrameState

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

the class InliningUtil method inline.

/**
 * Performs an actual inlining, thereby replacing the given invoke with the given
 * {@code inlineGraph}.
 *
 * @param invoke the invoke that will be replaced
 * @param inlineGraph the graph that the invoke will be replaced with
 * @param receiverNullCheck true if a null check needs to be generated for non-static inlinings,
 *            false if no such check is required
 * @param inlineeMethod the actual method being inlined. Maybe be null for snippets.
 * @param reason the reason for inlining, used in tracing
 * @param phase the phase that invoked inlining
 */
@SuppressWarnings("try")
public static UnmodifiableEconomicMap<Node, Node> inline(Invoke invoke, StructuredGraph inlineGraph, boolean receiverNullCheck, ResolvedJavaMethod inlineeMethod, String reason, String phase) {
    FixedNode invokeNode = invoke.asNode();
    StructuredGraph graph = invokeNode.graph();
    final NodeInputList<ValueNode> parameters = invoke.callTarget().arguments();
    assert inlineGraph.getGuardsStage().ordinal() >= graph.getGuardsStage().ordinal();
    assert !invokeNode.graph().isAfterFloatingReadPhase() : "inline isn't handled correctly after floating reads phase";
    if (receiverNullCheck && !((MethodCallTargetNode) invoke.callTarget()).isStatic()) {
        nonNullReceiver(invoke);
    }
    ArrayList<Node> nodes = new ArrayList<>(inlineGraph.getNodes().count());
    ArrayList<ReturnNode> returnNodes = new ArrayList<>(4);
    ArrayList<Invoke> partialIntrinsicExits = new ArrayList<>();
    UnwindNode unwindNode = null;
    final StartNode entryPointNode = inlineGraph.start();
    FixedNode firstCFGNode = entryPointNode.next();
    if (firstCFGNode == null) {
        throw new IllegalStateException("Inlined graph is in invalid state: " + inlineGraph);
    }
    for (Node node : inlineGraph.getNodes()) {
        if (node == entryPointNode || (node == entryPointNode.stateAfter() && node.usages().count() == 1) || node instanceof ParameterNode) {
        // Do nothing.
        } else {
            nodes.add(node);
            if (node instanceof ReturnNode) {
                returnNodes.add((ReturnNode) node);
            } else if (node instanceof Invoke) {
                Invoke invokeInInlineGraph = (Invoke) node;
                if (invokeInInlineGraph.bci() == BytecodeFrame.UNKNOWN_BCI) {
                    ResolvedJavaMethod target1 = inlineeMethod;
                    ResolvedJavaMethod target2 = invokeInInlineGraph.callTarget().targetMethod();
                    assert target1.equals(target2) : String.format("invoke in inlined method expected to be partial intrinsic exit (i.e., call to %s), not a call to %s", target1.format("%H.%n(%p)"), target2.format("%H.%n(%p)"));
                    partialIntrinsicExits.add(invokeInInlineGraph);
                }
            } else if (node instanceof UnwindNode) {
                assert unwindNode == null;
                unwindNode = (UnwindNode) node;
            }
        }
    }
    final AbstractBeginNode prevBegin = AbstractBeginNode.prevBegin(invokeNode);
    DuplicationReplacement localReplacement = new DuplicationReplacement() {

        @Override
        public Node replacement(Node node) {
            if (node instanceof ParameterNode) {
                return parameters.get(((ParameterNode) node).index());
            } else if (node == entryPointNode) {
                return prevBegin;
            }
            return node;
        }
    };
    assert invokeNode.successors().first() != null : invoke;
    assert invokeNode.predecessor() != null;
    Mark mark = graph.getMark();
    // Instead, attach the inlining log of the child graph to the current inlining log.
    EconomicMap<Node, Node> duplicates;
    try (InliningLog.UpdateScope scope = graph.getInliningLog().openDefaultUpdateScope()) {
        duplicates = graph.addDuplicates(nodes, inlineGraph, inlineGraph.getNodeCount(), localReplacement);
        if (scope != null) {
            graph.getInliningLog().addDecision(invoke, true, reason, phase, duplicates, inlineGraph.getInliningLog());
        }
    }
    FrameState stateAfter = invoke.stateAfter();
    assert stateAfter == null || stateAfter.isAlive();
    FrameState stateAtExceptionEdge = null;
    if (invoke instanceof InvokeWithExceptionNode) {
        InvokeWithExceptionNode invokeWithException = ((InvokeWithExceptionNode) invoke);
        if (unwindNode != null) {
            ExceptionObjectNode obj = (ExceptionObjectNode) invokeWithException.exceptionEdge();
            stateAtExceptionEdge = obj.stateAfter();
        }
    }
    updateSourcePositions(invoke, inlineGraph, duplicates, !Objects.equals(inlineGraph.method(), inlineeMethod), mark);
    if (stateAfter != null) {
        processFrameStates(invoke, inlineGraph, duplicates, stateAtExceptionEdge, returnNodes.size() > 1);
        int callerLockDepth = stateAfter.nestedLockDepth();
        if (callerLockDepth != 0) {
            for (MonitorIdNode original : inlineGraph.getNodes(MonitorIdNode.TYPE)) {
                MonitorIdNode monitor = (MonitorIdNode) duplicates.get(original);
                processMonitorId(invoke.stateAfter(), monitor);
            }
        }
    } else {
        assert checkContainsOnlyInvalidOrAfterFrameState(duplicates);
    }
    firstCFGNode = (FixedNode) duplicates.get(firstCFGNode);
    for (int i = 0; i < returnNodes.size(); i++) {
        returnNodes.set(i, (ReturnNode) duplicates.get(returnNodes.get(i)));
    }
    for (Invoke exit : partialIntrinsicExits) {
        // A partial intrinsic exit must be replaced with a call to
        // the intrinsified method.
        Invoke dup = (Invoke) duplicates.get(exit.asNode());
        if (dup instanceof InvokeNode) {
            InvokeNode repl = graph.add(new InvokeNode(invoke.callTarget(), invoke.bci()));
            dup.intrinsify(repl.asNode());
        } else {
            ((InvokeWithExceptionNode) dup).replaceWithNewBci(invoke.bci());
        }
    }
    if (unwindNode != null) {
        unwindNode = (UnwindNode) duplicates.get(unwindNode);
    }
    finishInlining(invoke, graph, firstCFGNode, returnNodes, unwindNode, inlineGraph.getAssumptions(), inlineGraph);
    GraphUtil.killCFG(invokeNode);
    return duplicates;
}