Package org.apache.sysds.parser

Class WhileStatementBlock

java.lang.Object

org.apache.sysds.parser.LiveVariableAnalysis

org.apache.sysds.parser.StatementBlock

org.apache.sysds.parser.WhileStatementBlock

All Implemented Interfaces:

ParseInfo

public class WhileStatementBlock
extends StatementBlock

Field Summary

Fields inherited from class org.apache.sysds.parser.StatementBlock

DEFAULT_LOOP_REPETITIONS

Constructor Summary

Constructors

Constructor	Description
WhileStatementBlock()

Method Summary

Modifier and Type	Method	Description
VariableSet	analyze(VariableSet loPassed)
ArrayList<String>	getInputstoSB()
Hop	getPredicateHops()
Lop	getPredicateLops()
VariableSet	initializebackwardLV(VariableSet loPassed)
VariableSet	initializeforwardLV(VariableSet activeInPassed)	For each statement: gen rule: for each variable read in current statement but not updated in any PRIOR statement, add to gen Handles case where variable both read and updated in same statement (i = i + 1, i needs to be added to gen) kill rule: for each variable updated in current statement but not read in this or any PRIOR statement, add to kill.
boolean	requiresPredicateRecompilation()
void	setPredicateHops(Hop hops)
void	setPredicateLops(Lop predicateLops)
boolean	updatePredicateRecompilationFlag()
void	updateRepetitionEstimates(double repetitions)	Updates the repetition estimate for this statement block and all contained hops.
VariableSet	validate(DMLProgram dmlProg, VariableSet ids, HashMap<String,ConstIdentifier> constVars, boolean conditional)

Methods inherited from class org.apache.sysds.parser.StatementBlock

addStatement, addStatementBlock, getBeginColumn, getBeginLine, getCheckpointPositions, getConstIn, getConstOut, getDMLProg, getEndColumn, getEndLine, getFilename, getHops, getLops, getName, getNumStatements, getOutputNamesofSB, getOutputsofSB, getSBID, getStatement, getStatements, getText, getUpdateInPlaceVars, hasHops, isMergeableFunctionCallBlock, isNondeterministic, isRewritableFunctionCall, isSplitDag, mergeable, mergeFunctionCalls, mergeStatementBlocks, printBlockErrorLocation, printErrorLocation, printWarningLocation, raiseValidateError, raiseValidateError, requiresRecompilation, rewriteFunctionCallStatements, rHoistFunctionCallsFromExpressions, rHoistFunctionCallsFromExpressions, rHoistFunctionCallsFromExpressions, setBeginColumn, setBeginLine, setCheckpointPosition, setDMLProg, setEndColumn, setEndLine, setFilename, setHops, setLops, setNondeterministic, setParseInfo, setSplitDag, setStatementFormatType, setStatementFormatType, setStatements, setText, setUpdateInPlaceVars, toString, updateRecompilationFlag

Methods inherited from class org.apache.sysds.parser.LiveVariableAnalysis

getGen, getKill, getWarn, liveIn, liveOut, setGen, setKill, setLiveIn, setLiveOut, setReadVariables, setUpdatedVariables, updateLiveVariablesOut, variablesRead, variablesUpdated

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

WhileStatementBlock

public WhileStatementBlock()

Method Detail

validate

public VariableSet validate(DMLProgram dmlProg,
                            VariableSet ids,
                            HashMap<String,ConstIdentifier> constVars,
                            boolean conditional)

Overrides:

validate in class StatementBlock

initializeforwardLV

public VariableSet initializeforwardLV(VariableSet activeInPassed)

Description copied from class: StatementBlock

For each statement: gen rule: for each variable read in current statement but not updated in any PRIOR statement, add to gen Handles case where variable both read and updated in same statement (i = i + 1, i needs to be added to gen) kill rule: for each variable updated in current statement but not read in this or any PRIOR statement, add to kill.

Overrides:

initializeforwardLV in class StatementBlock

initializebackwardLV

public VariableSet initializebackwardLV(VariableSet loPassed)

Overrides:

initializebackwardLV in class StatementBlock

setPredicateHops

public void setPredicateHops(Hop hops)

getPredicateHops

public Hop getPredicateHops()

getPredicateLops

public Lop getPredicateLops()

setPredicateLops

public void setPredicateLops(Lop predicateLops)

getInputstoSB

public ArrayList<String> getInputstoSB()

Overrides:

getInputstoSB in class StatementBlock

analyze

public VariableSet analyze(VariableSet loPassed)

Overrides:

analyze in class StatementBlock

updateRepetitionEstimates

public void updateRepetitionEstimates(double repetitions)

Description copied from class: StatementBlock

Updates the repetition estimate for this statement block and all contained hops. FunctionStatementBlocks are loaded from the function dictionary and repetitions are estimated for the contained statement blocks. This method is overridden in the subclasses of StatementBlock.

Overrides:

updateRepetitionEstimates in class StatementBlock

Parameters:

repetitions - estimated for this statement block

updatePredicateRecompilationFlag

public boolean updatePredicateRecompilationFlag()

requiresPredicateRecompilation

public boolean requiresPredicateRecompilation()