Class TruffleCompilerAssumptionDependency

java.lang.Object

com.oracle.truffle.compiler.TruffleCompilerAssumptionDependency

All Implemented Interfaces:

OptimizedAssumptionDependency

public final class TruffleCompilerAssumptionDependency
extends Object
implements OptimizedAssumptionDependency

For multi tier compilation it is necessary to pair the call target with the installed code as multiple installed codes may be active for a given call target. For example if the tier 1 compiled code is currently active while tier 2 code is installed. If now an assumption is invalidated both installed codes must be deoptimized eagerly. Installing tier 2 code over tier 1 code does not eagerly deoptimize the tier 1 code.

Constructor Summary

Constructors

Constructor	Description
TruffleCompilerAssumptionDependency(TruffleCompilable compilation, jdk.vm.ci.code.InstalledCode code)

Method Summary

Modifier and Type	Method	Description
TruffleCompilable	getCompilable()	Gets the Truffle AST whose machine code is represented by this object.
jdk.vm.ci.code.InstalledCode	getInstalledCode()
boolean	isAlive()	Determines if the machine code referenced by this object is valid.
void	onAssumptionInvalidated(Object source, CharSequence reason)	Called when a depended-on assumption is invalidated, with the intention to invalidate the machine code referenced by this object.
String	toString()

Methods inherited from class Object

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

Constructor Details

TruffleCompilerAssumptionDependency

public TruffleCompilerAssumptionDependency(TruffleCompilable compilation,
 jdk.vm.ci.code.InstalledCode code)

Method Details

onAssumptionInvalidated

public void onAssumptionInvalidated(Object source,
 CharSequence reason)

Description copied from interface: OptimizedAssumptionDependency

Called when a depended-on assumption is invalidated, with the intention to invalidate the machine code referenced by this object.

Specified by:

onAssumptionInvalidated in interface OptimizedAssumptionDependency

getInstalledCode

public jdk.vm.ci.code.InstalledCode getInstalledCode()

getCompilable

public TruffleCompilable getCompilable()

Description copied from interface: OptimizedAssumptionDependency

Gets the Truffle AST whose machine code is represented by this object. May be null.

Specified by:

getCompilable in interface OptimizedAssumptionDependency

isAlive

public boolean isAlive()

Description copied from interface: OptimizedAssumptionDependency

Determines if the machine code referenced by this object is valid.

Specified by:

isAlive in interface OptimizedAssumptionDependency

toString

public String toString()

Overrides:

toString in class Object