/**
* The {@link com.oracle.graal.nodes.AbstractEndNode} at the end of the current code path
* contributes values to {@link com.oracle.graal.nodes.PhiNode}s. Now is a good time to {@link
* EquationalReasoner#deverbosify(com.oracle.graal.graph.Node) EquationalReasoner#deverbosify}
* those values.
*
* <p>Precondition: inputs haven't been deverbosified yet.
*/
private void visitAbstractEndNode(AbstractEndNode endNode) {
MergeNode merge = endNode.merge();
for (PhiNode phi : merge.phis()) {
if (phi instanceof ValuePhiNode && phi.getKind() == Kind.Object) {
assert phi.verify();
int index = merge.phiPredecessorIndex(endNode);
ValueNode original = phi.valueAt(index);
ValueNode reduced = (ValueNode) reasoner.deverbosify(original);
if (reduced != original) {
phi.setValueAt(index, reduced);
// `original` if unused will be removed in finished()
}
}
}
}
