Sta::findGroupPathPins check arrivals valid

include/sta/Search.hh

@@ -103,6 +103,7 @@ public:
 			   bool removal,
 			   bool clk_gating_setup,
 			   bool clk_gating_hold);
+  bool arrivalsValid();
   // Invalidate all arrival and required times.
   void arrivalsInvalid();
   // Invalidate vertex arrival time.

search/Search.cc

@@ -651,6 +651,13 @@ Search::deleteVertexBefore(Vertex *vertex)
     invalid_endpoints_->erase(vertex);
 }
 
+bool
+Search::arrivalsValid()
+{
+  return arrivals_exist_
+    && invalid_requireds_.empty();
+}
+
 void
 Search::arrivalsInvalid()
 {

search/Sta.cc

@@ -2621,7 +2621,8 @@ Sta::visitEndpoints(VertexVisitor *visitor)
 PinSet *
 Sta::findGroupPathPins(const char *group_path_name)
 {
-  if (!search_->havePathGroups()) {
+  if (!(search_->havePathGroups()
+        && search_->arrivalsValid())) {
     PathEndSeq *path_ends = findPathEnds(// from, thrus, to, unconstrained
 					 nullptr, nullptr, nullptr, false,
 					 // corner, min_max,