src/share/vm/opto/loopopts.cpp

rev 5411 : 8024069: replace_in_map() should operate on parent maps
Summary: type information gets lost because replace_in_map() doesn't update parent maps
Reviewed-by:

*** 236,246 ****
      return;
  
    ProjNode* dp_proj  = dp->as_Proj();
    ProjNode* unc_proj = iff->as_If()->proj_out(1 - dp_proj->_con)->as_Proj();
    if (exclude_loop_predicate &&
!       is_uncommon_trap_proj(unc_proj, Deoptimization::Reason_predicate))
      return; // Let IGVN transformation change control dependence.
  
    IdealLoopTree *old_loop = get_loop(dp);
  
    for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) {
--- 236,246 ----
      return;
  
    ProjNode* dp_proj  = dp->as_Proj();
    ProjNode* unc_proj = iff->as_If()->proj_out(1 - dp_proj->_con)->as_Proj();
    if (exclude_loop_predicate &&
!       unc_proj->is_uncommon_trap_proj(Deoptimization::Reason_predicate))
      return; // Let IGVN transformation change control dependence.
  
    IdealLoopTree *old_loop = get_loop(dp);
  
    for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) {