private void markDeadInstructions() {
Set<Instruction> instructionSet = Sets.newHashSet(instructions);
for (Instruction instruction : mutableInstructionList) {
if (!instructionSet.contains(instruction)) {
((InstructionImpl) instruction).setMarkedAsDead(true);
for (Instruction nextInstruction : instruction.getNextInstructions()) {
nextInstruction.getPreviousInstructions().remove(instruction);
}
}
}
}
/*package*/ void addInstruction(Instruction instruction) {
mutableInstructionList.add(instruction);
instruction.setOwner(this);
if (instruction instanceof KtElementInstruction) {
KtElementInstruction elementInstruction = (KtElementInstruction) instruction;
representativeInstructions.put(elementInstruction.getElement(), instruction);
}
if (instruction instanceof MergeInstruction) {
addMergedValues((MergeInstruction) instruction);
}
for (PseudoValue inputValue : instruction.getInputValues()) {
addValueUsage(inputValue, instruction);
for (PseudoValue mergedValue : getMergedValues(inputValue)) {
addValueUsage(mergedValue, instruction);
}
}
if (PseudocodeUtilsKt.calcSideEffectFree(instruction)) {
sideEffectFree.add(instruction);
}
}
private void processInstruction(Instruction instruction, final int currentPosition) {
instruction.accept(
new InstructionVisitor() {
@Override
public void visitInstructionWithNext(@NotNull InstructionWithNext instruction) {
instruction.setNext(getNextPosition(currentPosition));
}
@Override
public void visitJump(@NotNull AbstractJumpInstruction instruction) {
instruction.setResolvedTarget(getJumpTarget(instruction.getTargetLabel()));
}
@Override
public void visitNondeterministicJump(
@NotNull NondeterministicJumpInstruction instruction) {
instruction.setNext(getNextPosition(currentPosition));
List<Label> targetLabels = instruction.getTargetLabels();
for (Label targetLabel : targetLabels) {
instruction.setResolvedTarget(targetLabel, getJumpTarget(targetLabel));
}
}
@Override
public void visitConditionalJump(@NotNull ConditionalJumpInstruction instruction) {
Instruction nextInstruction = getNextPosition(currentPosition);
Instruction jumpTarget = getJumpTarget(instruction.getTargetLabel());
if (instruction.getOnTrue()) {
instruction.setNextOnFalse(nextInstruction);
instruction.setNextOnTrue(jumpTarget);
} else {
instruction.setNextOnFalse(jumpTarget);
instruction.setNextOnTrue(nextInstruction);
}
visitJump(instruction);
}
@Override
public void visitLocalFunctionDeclarationInstruction(
@NotNull LocalFunctionDeclarationInstruction instruction) {
PseudocodeImpl body = (PseudocodeImpl) instruction.getBody();
body.setParent(PseudocodeImpl.this);
body.postProcess();
instruction.setNext(getSinkInstruction());
}
@Override
public void visitSubroutineExit(@NotNull SubroutineExitInstruction instruction) {
// Nothing
}
@Override
public void visitSubroutineSink(@NotNull SubroutineSinkInstruction instruction) {
// Nothing
}
@Override
public void visitInstruction(@NotNull Instruction instruction) {
throw new UnsupportedOperationException(instruction.toString());
}
});
}