src/share/vm/opto/live.cpp

*** 132,142 ****
  
      // Inner loop: blocks that picked up new live-out values to be propagated
      while (_worklist->size()) {
        Block* block = _worklist->pop();
        IndexSet *delta = getset(block);
!       assert( delta->count(), "missing delta set" );
  
        // Add new-live-in to predecessors live-out sets
        for (uint l = 1; l < block->num_preds(); l++) {
          Block* predecessor = _cfg.get_block_for_node(block->pred(l));
          add_liveout(predecessor, delta, first_pass);
--- 132,142 ----
  
      // Inner loop: blocks that picked up new live-out values to be propagated
      while (_worklist->size()) {
        Block* block = _worklist->pop();
        IndexSet *delta = getset(block);
!       assert( !delta->is_empty(), "missing delta set" );
  
        // Add new-live-in to predecessors live-out sets
        for (uint l = 1; l < block->num_preds(); l++) {
          Block* predecessor = _cfg.get_block_for_node(block->pred(l));
          add_liveout(predecessor, delta, first_pass);
*** 185,202 ****
  // is always from thread local storage.
  IndexSet *PhaseLive::getfreeset( ) {
    IndexSet *f = _free_IndexSet;
    if( !f ) {
      f = new IndexSet;
! //    f->set_arena(Thread::current()->resource_area());
!     f->initialize(_maxlrg, Thread::current()->resource_area());
    } else {
      // Pull from free list
      _free_IndexSet = f->next();
!   //f->_cnt = 0;                        // Reset to empty
! //    f->set_arena(Thread::current()->resource_area());
!     f->initialize(_maxlrg, Thread::current()->resource_area());
    }
    return f;
  }
  
  // Free an IndexSet from a block.
--- 185,199 ----
  // is always from thread local storage.
  IndexSet *PhaseLive::getfreeset( ) {
    IndexSet *f = _free_IndexSet;
    if( !f ) {
      f = new IndexSet;
!     f->initialize(_maxlrg);
    } else {
      // Pull from free list
      _free_IndexSet = f->next();
!     f->initialize(_maxlrg);
    }
    return f;
  }
  
  // Free an IndexSet from a block.
*** 236,246 ****
      if( live->insert(r) &&      // If actually inserted...
          !defs->member( r ) )    // and not defined locally
        delta->insert(r);         // Then add to live-in set
    }
  
!   if( delta->count() ) {                // If actually added things
      _deltas[p->_pre_order-1] = delta; // Flag as on worklist now
      if( !on_worklist &&         // Not on worklist?
          first_pass.test(p->_pre_order) )
        _worklist->push(p);       // Actually go on worklist if already 1st pass
    } else {                      // Nothing there; just free it
--- 233,243 ----
      if( live->insert(r) &&      // If actually inserted...
          !defs->member( r ) )    // and not defined locally
        delta->insert(r);         // Then add to live-in set
    }
  
!   if( !delta->is_empty() ) {                // If actually added things
      _deltas[p->_pre_order-1] = delta; // Flag as on worklist now
      if( !on_worklist &&         // Not on worklist?
          first_pass.test(p->_pre_order) )
        _worklist->push(p);       // Actually go on worklist if already 1st pass
    } else {                      // Nothing there; just free it