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ConflictSet.cpp

@@ -1295,9 +1295,11 @@ Node *getFirstChildExists(Node256 *self) {
 
 // Precondition: self has a child
 Node *getFirstChildExists(Node *self) {
+  // Only require that the node-specific overloads are covered
+  // GCOVR_EXCL_START
   switch (self->getType()) {
-  case Type_Node0:           // GCOVR_EXCL_LINE
-    __builtin_unreachable(); // GCOVR_EXCL_LINE
+  case Type_Node0:
+    __builtin_unreachable();
   case Type_Node3:
     return getFirstChildExists(static_cast<Node3 *>(self));
   case Type_Node16:
@@ -1306,9 +1308,10 @@ Node *getFirstChildExists(Node *self) {
     return getFirstChildExists(static_cast<Node48 *>(self));
   case Type_Node256:
     return getFirstChildExists(static_cast<Node256 *>(self));
-  default:                   // GCOVR_EXCL_LINE
-    __builtin_unreachable(); // GCOVR_EXCL_LINE
+  default:
+    __builtin_unreachable();
   }
+  // GCOVR_EXCL_STOP
 }
 
 void consumePartialKeyFull(TaggedNodePointer &self,