BasicRegisterMapper (dalvik-dx API)

java.lang.Object

com.android.dx.ssa.RegisterMapper

com.android.dx.ssa.BasicRegisterMapper

Direct Known Subclasses:: InterferenceRegisterMapper

public class BasicRegisterMapper extends RegisterMapper

This class maps one register space into another, with each mapping built up individually and added via addMapping()

Constructor Summary

Constructors

Constructor

Description

BasicRegisterMapper(int countOldRegisters)

Creates a new OneToOneRegisterMapper.
Method Summary

Modifier and Type

Method

Description

void

addMapping(int oldReg, int newReg, int category)

Adds a mapping to the mapper.

int

getNewRegisterCount()

Gets the count of registers (really, the total register width, since category width is counted) in the new namespace.

RegisterSpec

map(RegisterSpec registerSpec)

int

oldToNew(int oldReg)

Returns the new-namespace mapping for the specified old-namespace register, or -1 if one exists.

String

toHuman()

Methods inherited from class com.android.dx.ssa.RegisterMapper
map, map

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- BasicRegisterMapper
  
  public BasicRegisterMapper(int countOldRegisters)
  
  Creates a new OneToOneRegisterMapper.
  
  Parameters:
  
  countOldRegisters - the number of registers in the old name space
Method Details
- getNewRegisterCount
  
  public int getNewRegisterCount()
  
  Gets the count of registers (really, the total register width, since category width is counted) in the new namespace.
  
  Specified by:
  
  getNewRegisterCount in class RegisterMapper
  
  Returns:
  
  ≥ 0 width of new namespace.
- map
  
  public RegisterSpec map(RegisterSpec registerSpec)
  
  Specified by:
  
  map in class RegisterMapper
  
  Parameters:
  
  registerSpec - old register
  
  Returns:
  
  register in new space
- oldToNew
  
  public int oldToNew(int oldReg)
  
  Returns the new-namespace mapping for the specified old-namespace register, or -1 if one exists.
  
  Parameters:
  
  oldReg - >= 0; old-namespace register
  
  Returns:
  
  new-namespace register or -1 if none
- toHuman
  
  public String toHuman()
- addMapping
  
  public void addMapping(int oldReg, int newReg, int category)
  
  Adds a mapping to the mapper. If oldReg has already been mapped, overwrites previous mapping with new mapping.
  
  Parameters:
  
  oldReg - >= 0; old register
  
  newReg - >= 0; new register
  
  category - 1..2; width of reg