Package com.facebook.presto.byteCode.instruction

Examples of com.facebook.presto.byteCode.instruction.LabelNode

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                    .getVariable("this")
                    .getField(joinChannelFields.get(index))
                    .invoke("get", Object.class, compilerContext.getVariable("rightBlockIndex"))
                    .cast(com.facebook.presto.spi.block.Block.class);

            LabelNode checkNextField = new LabelNode("checkNextField");
            hashPositionMethod
                    .getBody()
                    .append(typeEquals(compilerContext,
                            type,
                            leftBlock,
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                            leftBlock,
                            leftBlockPosition,
                            rightBlock,
                            rightBlockPosition));

            LabelNode equal = new LabelNode("equal");
            block.comment("if (compare != 0) return compare")
                    .dup()
                    .ifZeroGoto(equal)
                    .retInt()
                    .visitLabel(equal)
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                .putVariable(completedPositionsVariable, 0);

        //
        // for loop loop body
        //
        LabelNode done = new LabelNode("done");
        ForLoopBuilder forLoop = ForLoop.forLoopBuilder(compilerContext)
                .initialize(NOP)
                .condition(new Block(compilerContext)
                        .comment("completedPositions < 16384")
                        .getVariable(completedPositionsVariable)
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        filterMethod.getCompilerContext().declareVariable(type(boolean.class), "wasNull");
        Block getSessionByteCode = new Block(filterMethod.getCompilerContext()).pushThis().getField(classDefinition.getType(), "session", type(ConnectorSession.class));
        ByteCodeNode body = compileExpression(callSiteBinder, filter, sourceIsCursor, filterMethod.getCompilerContext(), getSessionByteCode);

        LabelNode end = new LabelNode("end");
        filterMethod
                .getBody()
                .comment("boolean wasNull = false;")
                .putVariable("wasNull", false)
                .append(body)
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                .getField(positionField)
                .push(1)
                .intAdd()
                .putField(positionField);

        LabelNode lessThan = new LabelNode("lessThan");
        LabelNode end = new LabelNode("end");
        advanceNextPositionBody
                .comment("return position < positionCount;")
                .pushThis()
                .getField(positionField)
                .pushThis()
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                "currentRowContainsNull",
                type(boolean.class))
                .getBody();

        for (FieldDefinition probeBlockField : probeBlockFields) {
            LabelNode checkNextField = new LabelNode("checkNextField");
            body
                    .append(context.getVariable("this").getField(probeBlockField).invoke("isNull", boolean.class, context.getVariable("this").getField(positionField)))
                    .ifFalseGoto(checkNextField)
                    .push(true)
                    .retBoolean()
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            }
        }
        ImmutableListMultimap<Integer, ByteCodeNode> hashBuckets = hashBucketsBuilder.build();
        ImmutableSet<Object> constantValues = constantValuesBuilder.build();

        LabelNode end = new LabelNode("end");
        LabelNode match = new LabelNode("match");
        LabelNode noMatch = new LabelNode("noMatch");

        LabelNode defaultLabel = new LabelNode("default");

        CompilerContext context = generatorContext.getContext();

        ByteCodeNode switchBlock;
        if (constantValues.size() < 1000) {
            Block switchCaseBlocks = new Block(context);
            LookupSwitch.LookupSwitchBuilder switchBuilder = lookupSwitchBuilder();
            for (Map.Entry<Integer, Collection<ByteCodeNode>> bucket : hashBuckets.asMap().entrySet()) {
                LabelNode label = new LabelNode("inHash" + bucket.getKey());
                switchBuilder.addCase(bucket.getKey(), label);
                Collection<ByteCodeNode> testValues = bucket.getValue();

                Block caseBlock = buildInCase(generatorContext, context, type, label, match, defaultLabel, testValues, false);
                switchCaseBlocks
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        if (checkForNulls) {
            caseBlock.putVariable(caseWasNull, false);
        }

        LabelNode elseLabel = new LabelNode("else");
        Block elseBlock = new Block(context)
                .visitLabel(elseLabel);

        if (checkForNulls) {
            elseBlock.getVariable(caseWasNull)
                    .putVariable("wasNull");
        }

        elseBlock.gotoLabel(noMatchLabel);

        FunctionInfo operator = generatorContext.getRegistry().resolveOperator(OperatorType.EQUAL, ImmutableList.of(type, type));

        Binding equalsFunction = generatorContext
                .getCallSiteBinder()
                .bind(operator.getMethodHandle());

        ByteCodeNode elseNode = elseBlock;
        for (ByteCodeNode testNode : testValues) {
            LabelNode testLabel = new LabelNode("test");
            IfStatement.IfStatementBuilder test = ifStatementBuilder(context);

            Block condition = new Block(context)
                    .visitLabel(testLabel)
                    .dup(type.getJavaType())
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        MethodType methodType = binding.getType();

        Signature signature = function.getSignature();
        Class<?> unboxedReturnType = Primitives.unwrap(methodType.returnType());

        LabelNode end = new LabelNode("end");
        Block block = new Block(context)
                .setDescription("invoke " + signature);

        ArrayList<Class<?>> stackTypes = new ArrayList<>();

        int index = 0;
        for (Class<?> type : methodType.parameterArray()) {
            stackTypes.add(type);
            if (type == ConnectorSession.class) {
                block.append(getSessionByteCode);
            }
            else {
                block.append(arguments.get(index));
                index++;
                block.append(ByteCodeUtils.ifWasNullPopAndGoto(context, end, unboxedReturnType, Lists.reverse(stackTypes)));
            }
        }
        block.append(invoke(context, binding));

        if (function.isNullable()) {
            if (unboxedReturnType.isPrimitive()) {
                LabelNode notNull = new LabelNode("notNull");
                block.dup(methodType.returnType())
                        .ifNotNullGoto(notNull)
                        .putVariable("wasNull", true)
                        .comment("swap boxed null with unboxed default")
                        .pop(methodType.returnType())
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        if (comparisonInstruction != null) {
            block.append(comparisonInstruction);
        }

        LabelNode noMatch = new LabelNode("no_match");
        LabelNode end = new LabelNode("end");
        return block
                .append(new JumpInstruction(noMatchJumpInstruction, noMatch))
                .push(true)
                .gotoLabel(end)
                .append(noMatch)
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Related Classes of com.facebook.presto.byteCode.instruction.LabelNode

  • com.facebook.presto.byteCode.control.TryCatch
  • com.facebook.presto.byteCode.expression.AndByteCodeExpression
  • com.facebook.presto.byteCode.expression.ComparisonByteCodeExpression
  • com.facebook.presto.byteCode.expression.InlineIfByteCodeExpression
  • com.facebook.presto.byteCode.expression.NotByteCodeExpression
  • com.facebook.presto.byteCode.expression.OrByteCodeExpression
  • com.facebook.presto.sql.gen.AndCodeGenerator
  • com.facebook.presto.sql.gen.ByteCodeExpressionVisitor
  • com.facebook.presto.sql.gen.ByteCodeUtils
  • com.facebook.presto.sql.gen.CursorProcessorCompiler
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