com.android.dx.ssa

Class SsaConverter

java.lang.Object

com.android.dx.ssa.SsaConverter

public class SsaConverter
extends java.lang.Object

Converts ROP methods to SSA Methods

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEBUG

Constructor Summary

Constructors

Constructor and Description
SsaConverter()

Method Summary

Modifier and Type	Method and Description
static SsaMethod	convertToSsaMethod(RopMethod rmeth, int paramWidth, boolean isStatic) Returns an SSA representation, edge-split and with phi functions placed.
static SsaMethod	testEdgeSplit(RopMethod rmeth, int paramWidth, boolean isStatic) Returns an SSA represention with only the edge-splitter run.
static SsaMethod	testPhiPlacement(RopMethod rmeth, int paramWidth, boolean isStatic) Returns an SSA represention with only the steps through the phi placement run.
static void	updateSsaMethod(SsaMethod ssaMeth, int threshold) Updates an SSA representation, placing phi functions and renaming all registers above a certain threshold number.

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

public static final boolean DEBUG

See Also:

Constant Field Values

Constructor Detail

SsaConverter

public SsaConverter()

Method Detail

convertToSsaMethod

public static SsaMethod convertToSsaMethod(RopMethod rmeth,
                                           int paramWidth,
                                           boolean isStatic)

Returns an SSA representation, edge-split and with phi functions placed.

Parameters:

rmeth - input

paramWidth - the total width, in register-units, of the method's parameters

isStatic - true if this method has no this pointer argument

Returns:

output in SSA form

updateSsaMethod

public static void updateSsaMethod(SsaMethod ssaMeth,
                                   int threshold)

Updates an SSA representation, placing phi functions and renaming all registers above a certain threshold number.

Parameters:

ssaMeth - input

threshold - registers below this number are unchanged

testEdgeSplit

public static SsaMethod testEdgeSplit(RopMethod rmeth,
                                      int paramWidth,
                                      boolean isStatic)

Returns an SSA represention with only the edge-splitter run.

Parameters:

rmeth - method to process

paramWidth - width of all arguments in the method

isStatic - true if this method has no this pointer argument

Returns:

an SSA represention with only the edge-splitter run

testPhiPlacement

public static SsaMethod testPhiPlacement(RopMethod rmeth,
                                         int paramWidth,
                                         boolean isStatic)

Returns an SSA represention with only the steps through the phi placement run.

Parameters:

rmeth - method to process

paramWidth - width of all arguments in the method

isStatic - true if this method has no this pointer argument

Returns:

an SSA represention with only the edge-splitter run