com.android.dx.ssa
Class Optimizer

java.lang.Object
  com.android.dx.ssa.Optimizer

public class Optimizer
extends Object

Runs a method through the SSA form conversion, any optimization algorithms, and returns it to rop form.

Nested Class Summary

static class

Optimizer.OptionalStep optional optimizer steps

Constructor Summary

Optimizer()

Method Summary

static SsaMethod	debugDeadCodeRemover(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice)
static SsaMethod	debugEdgeSplit(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice)
static SsaMethod	debugNoRegisterAllocation(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice, EnumSet<Optimizer.OptionalStep> steps)
static SsaMethod	debugPhiPlacement(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice)
static SsaMethod	debugRenaming(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice)
static TranslationAdvice	getAdvice()
static boolean	getPreserveLocals()
static RopMethod	optimize(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice) Runs optimization algorthims over this method, and returns a new instance of RopMethod with the changes.
static RopMethod	optimize(RopMethod rmeth, int paramWidth, boolean isStatic, boolean inPreserveLocals, TranslationAdvice inAdvice, EnumSet<Optimizer.OptionalStep> steps) Runs optimization algorthims over this method, and returns a new instance of RopMethod with the changes.

Methods inherited from class java.lang.Object

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

Constructor Detail

Optimizer

public Optimizer()

Method Detail

getPreserveLocals

public static boolean getPreserveLocals()

Returns:

true if local variable information should be preserved, even at code size/register size cost

getAdvice

public static TranslationAdvice getAdvice()

Returns:

non-null; translation advice

optimize

public static RopMethod optimize(RopMethod rmeth,
                                 int paramWidth,
                                 boolean isStatic,
                                 boolean inPreserveLocals,
                                 TranslationAdvice inAdvice)

Runs optimization algorthims over this method, and returns a new instance of RopMethod with the changes.

Parameters:

rmeth - method to process

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

isStatic - true if this method has no 'this' pointer argument.

inPreserveLocals - true if local variable info should be preserved, at the cost of some registers and insns

inAdvice - non-null; translation advice

Returns:

optimized method

optimize

public static RopMethod optimize(RopMethod rmeth,
                                 int paramWidth,
                                 boolean isStatic,
                                 boolean inPreserveLocals,
                                 TranslationAdvice inAdvice,
                                 EnumSet<Optimizer.OptionalStep> steps)

Runs optimization algorthims over this method, and returns a new instance of RopMethod with the changes.

Parameters:

rmeth - method to process

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

isStatic - true if this method has no 'this' pointer argument.

inPreserveLocals - true if local variable info should be preserved, at the cost of some registers and insns

inAdvice - non-null; translation advice

steps - set of optional optimization steps to run

Returns:

optimized method

debugEdgeSplit

public static SsaMethod debugEdgeSplit(RopMethod rmeth,
                                       int paramWidth,
                                       boolean isStatic,
                                       boolean inPreserveLocals,
                                       TranslationAdvice inAdvice)

debugPhiPlacement

public static SsaMethod debugPhiPlacement(RopMethod rmeth,
                                          int paramWidth,
                                          boolean isStatic,
                                          boolean inPreserveLocals,
                                          TranslationAdvice inAdvice)

debugRenaming

public static SsaMethod debugRenaming(RopMethod rmeth,
                                      int paramWidth,
                                      boolean isStatic,
                                      boolean inPreserveLocals,
                                      TranslationAdvice inAdvice)

debugDeadCodeRemover

public static SsaMethod debugDeadCodeRemover(RopMethod rmeth,
                                             int paramWidth,
                                             boolean isStatic,
                                             boolean inPreserveLocals,
                                             TranslationAdvice inAdvice)

debugNoRegisterAllocation

public static SsaMethod debugNoRegisterAllocation(RopMethod rmeth,
                                                  int paramWidth,
                                                  boolean isStatic,
                                                  boolean inPreserveLocals,
                                                  TranslationAdvice inAdvice,
                                                  EnumSet<Optimizer.OptionalStep> steps)