Package com.android.dx.ssa

Class NormalSsaInsn

java.lang.Object
com.android.dx.ssa.SsaInsn
com.android.dx.ssa.NormalSsaInsn
All Implemented Interfaces:
ToHuman, Cloneable
public final class NormalSsaInsn extends SsaInsn implements Cloneable
A "normal" (non-phi) instruction in SSA form. Always wraps a rop insn.

  • Method Details

    • mapSourceRegisters

      public final void mapSourceRegisters(RegisterMapper mapper)
      Maps only source registers.
      Specified by:
      mapSourceRegisters in class SsaInsn
      Parameters:
      mapper - new mapping

    • changeOneSource

      public final void changeOneSource(int index, RegisterSpec newSpec)
      Changes one of the insn's sources. New source should be of same type and category.
      Parameters:
      index - >=0; index of source to change
      newSpec - spec for new source

    • setNewSources

      public final void setNewSources(RegisterSpecList newSources)
      Changes the source list of the insn. New source list should be the same size and consist of sources of identical types.
      Parameters:
      newSources - non-null new sources list.

    • clone

      public NormalSsaInsn clone()
      Overrides:
      clone in class SsaInsn

    • getSources

      public RegisterSpecList getSources()
      Like rop.Insn.getSources().
      Specified by:
      getSources in class SsaInsn
      Returns:
      null-ok; sources list

    • toHuman

      public String toHuman()
      Return the "human" string form of this instance. This is generally less "debuggy" than toString().
      Specified by:
      toHuman in interface ToHuman
      Returns:
      non-null; the human string form

    • toRopInsn

      public Insn toRopInsn()
      Transform back to ROP form. TODO: Move this up into NormalSsaInsn.
      Specified by:
      toRopInsn in class SsaInsn
      Returns:
      non-null; a ROP representation of this instruction, with updated registers.

    • getOpcode

      public Rop getOpcode()
      Description copied from class: SsaInsn
      Returns the Rop opcode for this insn, or null if this is a phi insn. TODO: Move this up into NormalSsaInsn.
      Specified by:
      getOpcode in class SsaInsn
      Returns:
      the Rop opcode for this insn

    • getOriginalRopInsn

      public Insn getOriginalRopInsn()
      Returns the original Rop insn for this insn, or null if this is a phi insn. TODO: Move this up into NormalSsaInsn.
      Specified by:
      getOriginalRopInsn in class SsaInsn
      Returns:
      null-ok; Rop insn if there is one.

    • getLocalAssignment

      public RegisterSpec getLocalAssignment()
      Gets the spec of a local variable assignment that occurs at this instruction, or null if no local variable assignment occurs. This may be the result register, or for mark-local insns it may be the source.
      Overrides:
      getLocalAssignment in class SsaInsn
      Returns:
      null-ok; a local-associated register spec or null
      See Also:

    • upgradeToLiteral

      public void upgradeToLiteral()
      Upgrades this insn to a version that represents the constant source literally. If the upgrade is not possible, this does nothing.
      See Also:

    • isNormalMoveInsn

      public boolean isNormalMoveInsn()
      Overrides:
      isNormalMoveInsn in class SsaInsn
      Returns:
      true if this is a move (but not a move-operand) instruction

    • isMoveException

      public boolean isMoveException()
      Overrides:
      isMoveException in class SsaInsn
      Returns:
      true if this is a move-exception instruction. These instructions must immediately follow a preceeding invoke*

    • canThrow

      public boolean canThrow()
      Specified by:
      canThrow in class SsaInsn
      Returns:
      true if this instruction can throw.

    • accept

      public void accept(SsaInsn.Visitor v)
      Accepts a visitor.
      Specified by:
      accept in class SsaInsn
      Parameters:
      v - non-null the visitor

    • isPhiOrMove

      public boolean isPhiOrMove()
      Specified by:
      isPhiOrMove in class SsaInsn
      Returns:
      true if this is a PhiInsn or a normal move insn

    • hasSideEffect

      public boolean hasSideEffect()
      Returns true if this insn is considered to have a side effect beyond that of assigning to the result reg. TODO: Increase the scope of this.
      Specified by:
      hasSideEffect in class SsaInsn
      Returns:
      true if this insn is considered to have a side effect beyond that of assigning to the result reg.