private static LogicNode findSynonym(LogicNode value) {
if (value instanceof LogicConstantNode) {
LogicConstantNode logicConstantNode = (LogicConstantNode) value;
return LogicConstantNode.forBoolean(!logicConstantNode.getValue());
} else if (value instanceof LogicNegationNode) {
return ((LogicNegationNode) value).getValue();
}
return null;
}
private void registerIfNode(IfNode ifNode, BeginNode begin) {
final boolean isThenBranch = (begin == ifNode.trueSuccessor());
if (ifNode.condition() instanceof LogicConstantNode) {
final LogicConstantNode constCond = (LogicConstantNode) ifNode.condition();
if (isThenBranch != constCond.getValue()) {
state.impossiblePath();
// let IfNode(constant) prune the dead-code control-path
}
}
if (state.isUnreachable) {
if (!(ifNode.condition() instanceof LogicConstantNode)) {
// if condition constant, no need to add a Deopt node
postponedDeopts.addDeoptAfter(begin, UnreachedCode);
}
} else {
state.addFact(isThenBranch, ifNode.condition(), begin);
}
}