src/share/vm/opto/loopnode.cpp

*** 2315,2325 ****
  
    if (ReassociateInvariants) {
      // Reassociate invariants and prep for split_thru_phi
      for (LoopTreeIterator iter(_ltree_root); !iter.done(); iter.next()) {
        IdealLoopTree* lpt = iter.current();
!       if (!lpt->is_counted() || !lpt->is_inner()) continue;
  
        lpt->reassociate_invariants(this);
  
        // Because RCE opportunities can be masked by split_thru_phi,
        // look for RCE candidates and inhibit split_thru_phi
--- 2315,2329 ----
  
    if (ReassociateInvariants) {
      // Reassociate invariants and prep for split_thru_phi
      for (LoopTreeIterator iter(_ltree_root); !iter.done(); iter.next()) {
        IdealLoopTree* lpt = iter.current();
!       bool is_counted = lpt->is_counted();
!       if (!is_counted || !lpt->is_inner()) continue;
! 
!       // check for vectorized loops, any reassociation of invariants was already done
!       if (is_counted && lpt->_head->as_CountedLoop()->ignore_slp()) continue;
  
        lpt->reassociate_invariants(this);
  
        // Because RCE opportunities can be masked by split_thru_phi,
        // look for RCE candidates and inhibit split_thru_phi