Examples with BytecodeParser org.graalvm.compiler.java.BytecodeParser used on opensource projects

Example 1 with BytecodeParser

use of org.graalvm.compiler.java.BytecodeParser in project graal by oracle.

the class CInterfaceInvocationPlugin method replaceFunctionPointerInvoke.

private boolean replaceFunctionPointerInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args, CallingConvention.Type callType) {
    if (!functionPointerType.isAssignableFrom(method.getDeclaringClass())) {
        throw UserError.abort(new CInterfaceError("function pointer invocation method " + method.format("%H.%n(%p)") + " must be in a type that extends " + CFunctionPointer.class.getSimpleName(), method).getMessage());
    }
    assert b.getInvokeKind() == InvokeKind.Interface;
    JavaType[] parameterTypes = method.getSignature().toParameterTypes(null);
    if (callType == SubstrateCallingConventionType.NativeCall) {
        Predicate<JavaType> isValid = t -> t.getJavaKind().isPrimitive() || wordTypes.isWord(t);
        UserError.guarantee(Stream.of(parameterTypes).allMatch(isValid) && isValid.test(method.getSignature().getReturnType(null)), "C function pointer invocation method must have only primitive types or word types for its parameters and return value: " + method.format("%H.%n(%p)"));
    /*
             * We currently do not support automatic conversions for @CEnum because it entails
             * introducing additional invokes without real BCIs in a BytecodeParser context, which
             * does not work too well.
             */
    }
    // We "discard" the receiver from the signature by pretending we are a static method
    assert args.length >= 1;
    ValueNode methodAddress = args[0];
    ValueNode[] argsWithoutReceiver = Arrays.copyOfRange(args, 1, args.length);
    assert argsWithoutReceiver.length == parameterTypes.length;
    Stamp returnStamp;
    if (wordTypes.isWord(b.getInvokeReturnType())) {
        returnStamp = wordTypes.getWordStamp((ResolvedJavaType) b.getInvokeReturnType());
    } else {
        returnStamp = b.getInvokeReturnStamp(null).getTrustedStamp();
    }
    CallTargetNode indirectCallTargetNode = b.add(new IndirectCallTargetNode(methodAddress, argsWithoutReceiver, StampPair.createSingle(returnStamp), parameterTypes, method, callType, InvokeKind.Static));
    if (callType == SubstrateCallingConventionType.JavaCall) {
        b.handleReplacedInvoke(indirectCallTargetNode, b.getInvokeReturnType().getJavaKind());
    } else if (callType == SubstrateCallingConventionType.NativeCall) {
        // Native code cannot throw exceptions, omit exception edge
        InvokeNode invokeNode = new InvokeNode(indirectCallTargetNode, b.bci());
        if (pushKind(method) != JavaKind.Void) {
            b.addPush(pushKind(method), invokeNode);
        } else {
            b.add(invokeNode);
        }
    } else {
        throw shouldNotReachHere("Unsupported type of call: " + callType);
    }
    return true;
}