jdk.internal.jvmci.hotspot

Interface HotSpotMethodDataAccessor

All Known Implementing Classes:

HotSpotMethodData.AbstractMethodData, HotSpotMethodData.AbstractTypeData, HotSpotMethodData.ArgInfoData, HotSpotMethodData.ArrayData, HotSpotMethodData.BitData, HotSpotMethodData.BranchData, HotSpotMethodData.CounterData, HotSpotMethodData.JumpData, HotSpotMethodData.MultiBranchData, HotSpotMethodData.NoMethodData, HotSpotMethodData.RetData, HotSpotMethodData.TypeCheckData, HotSpotMethodData.VirtualCallData

public interface HotSpotMethodDataAccessor

Interface for accessor objects that encapsulate the logic for accessing the different kinds of data in a HotSpot methodDataOop. This interface is similar to the interface ProfilingInfo , but most methods require a MethodDataObject and the exact position within the methodData.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	HotSpotMethodDataAccessor.Tag DataLayout tag values.

Method Summary

Modifier and Type	Method and Description
StringBuilder	appendTo(StringBuilder sb, HotSpotMethodData data, int pos)
int	getBCI(HotSpotMethodData data, int position) Returns the BCI stored in the LayoutData header.
double	getBranchTakenProbability(HotSpotMethodData data, int position)
TriState	getExceptionSeen(HotSpotMethodData data, int position)
int	getExecutionCount(HotSpotMethodData data, int position)
JavaMethodProfile	getMethodProfile(HotSpotMethodData data, int position)
TriState	getNullSeen(HotSpotMethodData data, int position)
int	getSize(HotSpotMethodData data, int position) Computes the size for the specific data at the given position.
double[]	getSwitchProbabilities(HotSpotMethodData data, int position)
HotSpotMethodDataAccessor.Tag	getTag() Returns the HotSpotMethodDataAccessor.Tag stored in the LayoutData header.
JavaTypeProfile	getTypeProfile(HotSpotMethodData data, int position)

Method Detail

getTag

HotSpotMethodDataAccessor.Tag getTag()

Returns the HotSpotMethodDataAccessor.Tag stored in the LayoutData header.

Returns:

tag stored in the LayoutData header

getBCI

int getBCI(HotSpotMethodData data,
           int position)

Returns the BCI stored in the LayoutData header.

Returns:

An integer ≥ 0 and ≤ Short.MAX_VALUE, or -1 if not supported.

getSize

int getSize(HotSpotMethodData data,
            int position)

Computes the size for the specific data at the given position.

Returns:

An integer > 0.

getTypeProfile

JavaTypeProfile getTypeProfile(HotSpotMethodData data,
                               int position)

getMethodProfile

JavaMethodProfile getMethodProfile(HotSpotMethodData data,
                                   int position)

getBranchTakenProbability

double getBranchTakenProbability(HotSpotMethodData data,
                                 int position)

getSwitchProbabilities

double[] getSwitchProbabilities(HotSpotMethodData data,
                                int position)

getExceptionSeen

TriState getExceptionSeen(HotSpotMethodData data,
                          int position)

getNullSeen

TriState getNullSeen(HotSpotMethodData data,
                     int position)

getExecutionCount

int getExecutionCount(HotSpotMethodData data,
                      int position)

appendTo

StringBuilder appendTo(StringBuilder sb,
                       HotSpotMethodData data,
                       int pos)