Examples with DeoptimizationAction jdk.vm.ci.meta.DeoptimizationAction used on opensource projects

Example 1 with DeoptimizationAction

use of jdk.vm.ci.meta.DeoptimizationAction in project graal by oracle.

the class MethodHandleNode method maybeCastArgument.

/**
 * Inserts a node to cast the argument at index to the given type if the given type is more
 * concrete than the argument type.
 *
 * @param adder
 * @param index of the argument to be cast
 * @param type the type the argument should be cast to
 */
private static void maybeCastArgument(GraphAdder adder, ValueNode[] arguments, int index, JavaType type) {
    ValueNode argument = arguments[index];
    if (type instanceof ResolvedJavaType && !((ResolvedJavaType) type).isJavaLangObject()) {
        Assumptions assumptions = adder.getAssumptions();
        TypeReference targetType = TypeReference.create(assumptions, (ResolvedJavaType) type);
        /*
             * When an argument is a Word type, we can have a mismatch of primitive/object types
             * here. Not inserting a PiNode is a safe fallback, and Word types need no additional
             * type information anyway.
             */
        if (targetType != null && !targetType.getType().isPrimitive() && !argument.getStackKind().isPrimitive()) {
            ResolvedJavaType argumentType = StampTool.typeOrNull(argument.stamp(NodeView.DEFAULT));
            if (argumentType == null || (argumentType.isAssignableFrom(targetType.getType()) && !argumentType.equals(targetType.getType()))) {
                LogicNode inst = InstanceOfNode.createAllowNull(targetType, argument, null, null);
                assert !inst.isAlive();
                if (!inst.isTautology()) {
                    inst = adder.add(inst);
                    AnchoringNode guardAnchor = adder.getGuardAnchor();
                    DeoptimizationReason reason = DeoptimizationReason.ClassCastException;
                    DeoptimizationAction action = DeoptimizationAction.InvalidateRecompile;
                    JavaConstant speculation = JavaConstant.NULL_POINTER;
                    GuardingNode guard;
                    if (guardAnchor == null) {
                        FixedGuardNode fixedGuard = adder.add(new FixedGuardNode(inst, reason, action, speculation, false));
                        guard = fixedGuard;
                    } else {
                        GuardNode newGuard = adder.add(new GuardNode(inst, guardAnchor, reason, action, false, speculation));
                        adder.add(new ValueAnchorNode(newGuard));
                        guard = newGuard;
                    }
                    ValueNode valueNode = adder.add(PiNode.create(argument, StampFactory.object(targetType), guard.asNode()));
                    arguments[index] = valueNode;
                }
            }
        }
    }
}

Example 2 with DeoptimizationAction

use of jdk.vm.ci.meta.DeoptimizationAction in project graal by oracle.

the class SnippetRuntime method deoptimize.

/**
 * Foreign call: {@link #DEOPTIMIZE}.
 */
@SubstrateForeignCallTarget
private static void deoptimize(long actionAndReason, SpeculationReason speculation) {
    Pointer sp = KnownIntrinsics.readCallerStackPointer();
    DeoptimizationAction action = Deoptimizer.decodeDeoptAction(actionAndReason);
    if (Deoptimizer.Options.TraceDeoptimization.getValue()) {
        Log log = Log.log().string("[Deoptimization initiated").newline();
        CodePointer ip = KnownIntrinsics.readReturnAddress();
        SubstrateInstalledCode installedCode = CodeInfoTable.lookupInstalledCode(ip);
        if (installedCode != null) {
            log.string("    name: ").string(installedCode.getName()).newline();
        }
        log.string("    sp: ").hex(sp).string("  ip: ").hex(ip).newline();
        DeoptimizationReason reason = Deoptimizer.decodeDeoptReason(actionAndReason);
        log.string("    reason: ").string(reason.toString()).string("  action: ").string(action.toString()).newline();
        int debugId = Deoptimizer.decodeDebugId(actionAndReason);
        log.string("    debugId: ").signed(debugId).string("  speculation: ").string(Objects.toString(speculation)).newline();
        CodeInfoQueryResult info = CodeInfoTable.lookupCodeInfoQueryResult(ip);
        if (info != null) {
            NodeSourcePosition sourcePosition = DeoptimizationSourcePositionDecoder.decode(debugId, info);
            if (sourcePosition != null) {
                log.string("    stack trace that triggered deoptimization:").newline();
                NodeSourcePosition cur = sourcePosition;
                while (cur != null) {
                    log.string("        at ");
                    if (cur.getMethod() != null) {
                        StackTraceElement element = cur.getMethod().asStackTraceElement(cur.getBCI());
                        if (element.getFileName() != null && element.getLineNumber() >= 0) {
                            log.string(element.toString());
                        } else {
                            log.string(cur.getMethod().format("%H.%n(%p)")).string(" bci ").signed(cur.getBCI());
                        }
                    } else {
                        log.string("[unknown method]");
                    }
                    log.newline();
                    cur = cur.getCaller();
                }
            }
        }
    }
    if (action.doesInvalidateCompilation()) {
        Deoptimizer.invalidateMethodOfFrame(sp, speculation);
    } else {
        Deoptimizer.deoptimizeFrame(sp, false, speculation);
    }
    if (Deoptimizer.Options.TraceDeoptimization.getValue()) {
        Log.log().string("]").newline();
    }
}