jdk.internal.jvmci.meta

Enum DeoptimizationAction

java.lang.Object

java.lang.Enum<DeoptimizationAction>

jdk.internal.jvmci.meta.DeoptimizationAction

All Implemented Interfaces:

Serializable, Comparable<DeoptimizationAction>

public enum DeoptimizationAction
extends Enum<DeoptimizationAction>

Specifies the action that should be taken by the runtime in case a certain deoptimization is triggered.

Enum Constant Summary

Enum Constants

Enum Constant and Description
InvalidateRecompile Invalidate the machine code and immediately schedule a recompilation.
InvalidateReprofile Invalidate the machine code and reset the profiling information.
InvalidateStopCompiling Invalidate the machine code and stop compiling the outermost method of this compilation.
None Do not invalidate the machine code.
RecompileIfTooManyDeopts Do not invalidate the machine code, but schedule a recompilation if this deoptimization is triggered too often.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	invalidatesCompilation

Method Summary

Modifier and Type	Method and Description
boolean	doesInvalidateCompilation()
static DeoptimizationAction	valueOf(String name) Returns the enum constant of this type with the specified name.
static DeoptimizationAction[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

None

public static final DeoptimizationAction None

Do not invalidate the machine code. This is typically used when deoptimizing at a point where it's highly likely nothing will change the likelihood of the deoptimization happening again. For example, a compiled array allocation where the size is negative.

RecompileIfTooManyDeopts

public static final DeoptimizationAction RecompileIfTooManyDeopts

Do not invalidate the machine code, but schedule a recompilation if this deoptimization is triggered too often.

InvalidateReprofile

public static final DeoptimizationAction InvalidateReprofile

Invalidate the machine code and reset the profiling information.

InvalidateRecompile

public static final DeoptimizationAction InvalidateRecompile

Invalidate the machine code and immediately schedule a recompilation. This is typically used when deoptimizing to resolve an unresolved symbol in which case extra profiling is not required to determine that the deoptimization will not re-occur.

InvalidateStopCompiling

public static final DeoptimizationAction InvalidateStopCompiling

Invalidate the machine code and stop compiling the outermost method of this compilation.

Field Detail

invalidatesCompilation

private final boolean invalidatesCompilation

Method Detail

values

public static DeoptimizationAction[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DeoptimizationAction c : DeoptimizationAction.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DeoptimizationAction valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

doesInvalidateCompilation

public boolean doesInvalidateCompilation()