+void GenericMDNode::resolveAfterOperandChange(Metadata *Old, Metadata *New) {
+ assert(SubclassData32 != 0 && "Expected unresolved operands");
+
+ // Check if an operand was resolved.
+ if (!isOperandUnresolved(Old))
+ assert(isOperandUnresolved(New) && "Operand just became unresolved");
+ else if (!isOperandUnresolved(New))
+ decrementUnresolvedOperandCount();
+}
+
+void GenericMDNode::decrementUnresolvedOperandCount() {
+ if (!--SubclassData32)
+ // Last unresolved operand has just been resolved.
+ resolve();
+}
+