File	Doc	Category	Size	Date	Package
NormalSsaInsn.java	API Doc	Android 1.5 API	6352	Wed May 06 22:41:02 BST 2009	com.android.dx.ssa

NormalSsaInsn

• java.lang.Object
  • SsaInsn

Fields Summary
private Insn	insn ROP insn that we're wrapping

Constructors Summary
NormalSsaInsn(Insn insn, SsaBasicBlock block) Creates an instance. param insn Rop insn to wrap param block block that contains this insn super(block); this.insn = insn; this.result = insn.getResult();

Methods Summary
public void	accept(Visitor v) {@inheritDoc} if (isNormalMoveInsn()) { v.visitMoveInsn(this); } else { v.visitNonMoveInsn(this); }
public boolean	canThrow() {@inheritDoc} return insn.canThrow();
public final void	changeOneSource(int index, RegisterSpec newSpec) Changes one of the insn's sources. New source should be of same type and category. param index >=0; index of source to change param newSpec spec for new source RegisterSpecList origSources = insn.getSources(); int sz = origSources.size(); RegisterSpecList newSources = new RegisterSpecList(sz); for (int i = 0; i < sz; i++) { newSources.set(i, i == index ? newSpec : origSources.get(i)); } newSources.setImmutable(); RegisterSpec origSpec = origSources.get(index); if (origSpec.getReg() != newSpec.getReg()) { /* * If the register remains unchanged, we're only changing * the type or local var name so don't update use list */ block.getParent().onSourceChanged(this, origSpec, newSpec); } insn = insn.withNewRegisters(result, newSources);
public com.android.dx.ssa.NormalSsaInsn	clone() {@inheritDoc} return (NormalSsaInsn)super.clone();
public RegisterSpec	getLocalAssignment() {@inheritDoc} RegisterSpec assignment; if (insn.getOpcode().getOpcode() == RegOps.MARK_LOCAL) { assignment = insn.getSources().get(0); } else { assignment = result; } if (assignment == null) { return null; } LocalItem local = assignment.getLocalItem(); if (local == null) { return null; } return assignment;
public Rop	getOpcode() return the Rop opcode for this insn return insn.getOpcode();
public Insn	getOriginalRopInsn() {@inheritDoc} return insn;
public RegisterSpecList	getSources() Like rop.Insn.getSources() return null-ok; sources list return insn.getSources();
public boolean	hasSideEffect() {@inheritDoc} TODO increase the scope of this. Rop opcode = getOpcode(); if (opcode.getBranchingness() != Rop.BRANCH_NONE) { return true; } boolean hasLocalSideEffect = Optimizer.getPreserveLocals() && getLocalAssignment() != null; switch (opcode.getOpcode()) { case RegOps.MOVE_RESULT: case RegOps.MOVE: case RegOps.CONST: return hasLocalSideEffect; default: return true; }
public boolean	isMoveException() {@inheritDoc} return insn.getOpcode().getOpcode() == RegOps.MOVE_EXCEPTION;
public boolean	isNormalMoveInsn() return true if this is a move (but not a move-operand) instruction return insn.getOpcode().getOpcode() == RegOps.MOVE;
public boolean	isPhiOrMove() {@inheritDoc} return isNormalMoveInsn();
public final void	mapSourceRegisters(RegisterMapper mapper) {@inheritDoc} RegisterSpecList oldSources = insn.getSources(); RegisterSpecList newSources = mapper.map(oldSources); if (newSources != oldSources) { insn = insn.withNewRegisters(result, newSources); block.getParent().onSourcesChanged(this, oldSources); }
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. param newSources non-null new sources list. RegisterSpecList origSources = insn.getSources(); if (origSources.size() != newSources.size()) { throw new RuntimeException("Sources counts don't match"); } insn = insn.withNewRegisters(result, newSources);
public java.lang.String	toHuman() {@inheritDoc} return toRopInsn().toHuman();
public Insn	toRopInsn() {@inheritDoc} return insn.withNewRegisters(result,insn.getSources());
public void	upgradeToLiteral() Upgrades this insn to a version that represents the constant last source literally. If the upgrade is not possible, this does nothing. see Insn#withLastSourceLiteral RegisterSpecList oldSources = insn.getSources(); insn = insn.withLastSourceLiteral(); block.getParent().onSourcesChanged(this, oldSources);