- if (replace->generation() == generation)
- {
- if ((tte+i)->generation() != generation || (tte+i)->depth() < replace->depth())
- replace = tte+i;
- }
- else if ((tte+i)->generation() != generation && (tte+i)->depth() < replace->depth())
+ if ( i == 0 // already is (replace == tte+i), common case
+ || replace->generation() < (tte+i)->generation())
+ continue;
+
+ if ( replace->generation() > (tte+i)->generation()
+ || (tte+i)->depth() < replace->depth())