Examples with BytecodeExpression com.facebook.presto.bytecode.expression.BytecodeExpression used on opensource projects

Example 46 with BytecodeExpression

use of com.facebook.presto.bytecode.expression.BytecodeExpression in project presto by prestodb.

the class JoinCompiler method generateConstructor.

private static void generateConstructor(ClassDefinition classDefinition, List<Integer> joinChannels, FieldDefinition sizeField, FieldDefinition instanceSizeField, List<FieldDefinition> channelFields, List<FieldDefinition> joinChannelFields, FieldDefinition hashChannelField) {
    Parameter channels = arg("channels", type(List.class, type(List.class, Block.class)));
    Parameter hashChannel = arg("hashChannel", type(OptionalInt.class));
    MethodDefinition constructorDefinition = classDefinition.declareConstructor(a(PUBLIC), channels, hashChannel);
    Variable thisVariable = constructorDefinition.getThis();
    Variable blockIndex = constructorDefinition.getScope().declareVariable(int.class, "blockIndex");
    BytecodeBlock constructor = constructorDefinition.getBody().comment("super();").append(thisVariable).invokeConstructor(Object.class);
    constructor.comment("this.size = INSTANCE_SIZE").append(thisVariable.setField(sizeField, getStatic(instanceSizeField)));
    constructor.comment("Set channel fields");
    for (int index = 0; index < channelFields.size(); index++) {
        BytecodeExpression channel = channels.invoke("get", Object.class, constantInt(index)).cast(type(List.class, Block.class));
        constructor.append(thisVariable.setField(channelFields.get(index), channel));
        BytecodeBlock loopBody = new BytecodeBlock();
        constructor.comment("for(blockIndex = 0; blockIndex < channel.size(); blockIndex++) { size += channel.get(i).getRetainedSizeInBytes() }").append(new ForLoop().initialize(blockIndex.set(constantInt(0))).condition(new BytecodeBlock().append(blockIndex).append(channel.invoke("size", int.class)).invokeStatic(CompilerOperations.class, "lessThan", boolean.class, int.class, int.class)).update(new BytecodeBlock().incrementVariable(blockIndex, (byte) 1)).body(loopBody));
        loopBody.append(thisVariable).append(thisVariable).getField(sizeField).append(channel.invoke("get", Object.class, blockIndex).cast(type(Block.class)).invoke("getRetainedSizeInBytes", long.class)).longAdd().putField(sizeField);
    }
    constructor.comment("Set join channel fields");
    for (int index = 0; index < joinChannelFields.size(); index++) {
        BytecodeExpression joinChannel = channels.invoke("get", Object.class, constantInt(joinChannels.get(index))).cast(type(List.class, Block.class));
        constructor.append(thisVariable.setField(joinChannelFields.get(index), joinChannel));
    }
    constructor.comment("Set hashChannel");
    constructor.append(new IfStatement().condition(hashChannel.invoke("isPresent", boolean.class)).ifTrue(thisVariable.setField(hashChannelField, channels.invoke("get", Object.class, hashChannel.invoke("getAsInt", int.class)))).ifFalse(thisVariable.setField(hashChannelField, constantNull(hashChannelField.getType()))));
    constructor.ret();
}

Example 47 with BytecodeExpression

use of com.facebook.presto.bytecode.expression.BytecodeExpression in project presto by prestodb.

the class JoinCompiler method generateAppendToMethod.

private static void generateAppendToMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> types, List<Integer> outputChannels, List<FieldDefinition> channelFields) {
    Parameter blockIndex = arg("blockIndex", int.class);
    Parameter blockPosition = arg("blockPosition", int.class);
    Parameter pageBuilder = arg("pageBuilder", PageBuilder.class);
    Parameter outputChannelOffset = arg("outputChannelOffset", int.class);
    MethodDefinition appendToMethod = classDefinition.declareMethod(a(PUBLIC), "appendTo", type(void.class), blockIndex, blockPosition, pageBuilder, outputChannelOffset);
    Variable thisVariable = appendToMethod.getThis();
    BytecodeBlock appendToBody = appendToMethod.getBody();
    int pageBuilderOutputChannel = 0;
    for (int outputChannel : outputChannels) {
        Type type = types.get(outputChannel);
        BytecodeExpression typeExpression = constantType(callSiteBinder, type);
        BytecodeExpression block = thisVariable.getField(channelFields.get(outputChannel)).invoke("get", Object.class, blockIndex).cast(Block.class);
        appendToBody.comment("%s.appendTo(channel_%s.get(outputChannel), blockPosition, pageBuilder.getBlockBuilder(outputChannelOffset + %s));", type.getClass(), outputChannel, pageBuilderOutputChannel).append(typeExpression).append(block).append(blockPosition).append(pageBuilder).append(outputChannelOffset).push(pageBuilderOutputChannel++).append(OpCode.IADD).invokeVirtual(PageBuilder.class, "getBlockBuilder", BlockBuilder.class, int.class).invokeInterface(Type.class, "appendTo", void.class, Block.class, int.class, BlockBuilder.class);
    }
    appendToBody.ret();
}

Example 48 with BytecodeExpression

use of com.facebook.presto.bytecode.expression.BytecodeExpression in project presto by prestodb.

the class JoinCompiler method generateHashPositionMethod.

private static void generateHashPositionMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> joinChannelTypes, List<FieldDefinition> joinChannelFields, FieldDefinition hashChannelField) {
    Parameter blockIndex = arg("blockIndex", int.class);
    Parameter blockPosition = arg("blockPosition", int.class);
    MethodDefinition hashPositionMethod = classDefinition.declareMethod(a(PUBLIC), "hashPosition", type(long.class), blockIndex, blockPosition);
    Variable thisVariable = hashPositionMethod.getThis();
    BytecodeExpression hashChannel = thisVariable.getField(hashChannelField);
    BytecodeExpression bigintType = constantType(callSiteBinder, BigintType.BIGINT);
    IfStatement ifStatement = new IfStatement();
    ifStatement.condition(notEqual(hashChannel, constantNull(hashChannelField.getType())));
    ifStatement.ifTrue(bigintType.invoke("getLong", long.class, hashChannel.invoke("get", Object.class, blockIndex).cast(Block.class), blockPosition).ret());
    hashPositionMethod.getBody().append(ifStatement);
    Variable resultVariable = hashPositionMethod.getScope().declareVariable(long.class, "result");
    hashPositionMethod.getBody().push(0L).putVariable(resultVariable);
    for (int index = 0; index < joinChannelTypes.size(); index++) {
        BytecodeExpression type = constantType(callSiteBinder, joinChannelTypes.get(index));
        BytecodeExpression block = hashPositionMethod.getThis().getField(joinChannelFields.get(index)).invoke("get", Object.class, blockIndex).cast(Block.class);
        hashPositionMethod.getBody().getVariable(resultVariable).push(31L).append(OpCode.LMUL).append(typeHashCode(type, block, blockPosition)).append(OpCode.LADD).putVariable(resultVariable);
    }
    hashPositionMethod.getBody().getVariable(resultVariable).retLong();
}

Example 49 with BytecodeExpression

use of com.facebook.presto.bytecode.expression.BytecodeExpression in project presto by prestodb.

the class JoinCompiler method generateRowEqualsRowMethod.

private static void generateRowEqualsRowMethod(ClassDefinition classDefinition, CallSiteBinder callSiteBinder, List<Type> joinChannelTypes) {
    Parameter leftPosition = arg("leftPosition", int.class);
    Parameter leftPage = arg("leftPage", Page.class);
    Parameter rightPosition = arg("rightPosition", int.class);
    Parameter rightPage = arg("rightPage", Page.class);
    MethodDefinition rowEqualsRowMethod = classDefinition.declareMethod(a(PUBLIC), "rowEqualsRow", type(boolean.class), leftPosition, leftPage, rightPosition, rightPage);
    for (int index = 0; index < joinChannelTypes.size(); index++) {
        BytecodeExpression type = constantType(callSiteBinder, joinChannelTypes.get(index));
        BytecodeExpression leftBlock = leftPage.invoke("getBlock", Block.class, constantInt(index));
        BytecodeExpression rightBlock = rightPage.invoke("getBlock", Block.class, constantInt(index));
        LabelNode checkNextField = new LabelNode("checkNextField");
        rowEqualsRowMethod.getBody().append(typeEquals(type, leftBlock, leftPosition, rightBlock, rightPosition)).ifTrueGoto(checkNextField).push(false).retBoolean().visitLabel(checkNextField);
    }
    rowEqualsRowMethod.getBody().push(true).retInt();
}