org.jruby.ir.passes

Class OptimizeTempVarsPass

java.lang.Object

org.jruby.ir.passes.CompilerPass

org.jruby.ir.passes.OptimizeTempVarsPass

public class OptimizeTempVarsPass
extends CompilerPass

Field Summary

Fields

Modifier and Type	Field and Description
(package private) boolean	optimizedTempVars

Fields inherited from class org.jruby.ir.passes.CompilerPass

NO_DEPENDENCIES

Constructor Summary

Constructors

Constructor and Description
OptimizeTempVarsPass()

Method Summary

Modifier and Type	Method and Description
private static void	allocVar(Operand oldVar, IRScope s, java.util.List<TemporaryVariable> freeVarsList, java.util.Map<Operand,Operand> newVarMap)
java.lang.Object	execute(IRScope s, java.lang.Object... data) Meat of an individual pass.
private static void	freeVar(TemporaryVariable newVar, java.util.List<TemporaryVariable> freeVarsList)
java.lang.String	getLabel() What is the user-friendly name of this compiler pass
void	invalidate(IRScope s) The data that this pass is responsible for will get invalidated so that if this pass is then execute()d it will generate new pass data.
private static void	optimizeTmpVars(IRScope s)
java.lang.Object	previouslyRun(IRScope scope) If this pass has been previous run then return the data from that last run.

Methods inherited from class org.jruby.ir.passes.CompilerPass

createPassInstance, createPassInstance, getDependencies, getPassesFromString, run, run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

optimizedTempVars

boolean optimizedTempVars

Constructor Detail

OptimizeTempVarsPass

public OptimizeTempVarsPass()

Method Detail

getLabel

public java.lang.String getLabel()

Description copied from class: CompilerPass

What is the user-friendly name of this compiler pass

Specified by:

getLabel in class CompilerPass

execute

public java.lang.Object execute(IRScope s,
                                java.lang.Object... data)

Description copied from class: CompilerPass

Meat of an individual pass. run will call this after dependency resolution.

Specified by:

execute in class CompilerPass

Parameters:

s - is the scope to run this pass on

data - is the data supplied to this pass to use to execute the pass

previouslyRun

public java.lang.Object previouslyRun(IRScope scope)

Description copied from class: CompilerPass

If this pass has been previous run then return the data from that last run.

Overrides:

previouslyRun in class CompilerPass

invalidate

public void invalidate(IRScope s)

Description copied from class: CompilerPass

The data that this pass is responsible for will get invalidated so that if this pass is then execute()d it will generate new pass data. Note that some data will destructively manipulate dependent compiler pass data. In that case, the pass may wipe more than just it's data. In that case an execute() should still rebuild everything fine because all compiler passes list their dependencies.

Specified by:

invalidate in class CompilerPass

Parameters:

s - is where the pass stores its data.

allocVar

private static void allocVar(Operand oldVar,
                             IRScope s,
                             java.util.List<TemporaryVariable> freeVarsList,
                             java.util.Map<Operand,Operand> newVarMap)

freeVar

private static void freeVar(TemporaryVariable newVar,
                            java.util.List<TemporaryVariable> freeVarsList)

optimizeTmpVars

private static void optimizeTmpVars(IRScope s)