8029446: assert(_cfg.get_block_for_node(proj) == borig) failed: incorrect...

8029446: assert(_cfg.get_block_for_node(proj) == borig) failed: incorrect block for kill projections
Summary: Added loadConP0 projection node to block in case of re-materialization of the loadConP0. x86_64 only.
Reviewed-by: kvn

hotspot/src/share/vm/opto/chaitin.cpp

@@ -1682,9 +1682,21 @@ Node *PhaseChaitin::find_base_for_derived( Node **derived_base_map, Node *derive
       // (where top() node is placed).
       base->init_req(0, _cfg.get_root_node());
       Block *startb = _cfg.get_block_for_node(C->top());
-      startb->insert_node(base, startb->find_node(C->top()));
+      uint node_pos = startb->find_node(C->top());
+      startb->insert_node(base, node_pos);
       _cfg.map_node_to_block(base, startb);
       assert(_lrg_map.live_range_id(base) == 0, "should not have LRG yet");
+
+      // The loadConP0 might have projection nodes depending on architecture
+      // Add the projection nodes to the CFG
+      for (DUIterator_Fast imax, i = base->fast_outs(imax); i < imax; i++) {
+        Node* use = base->fast_out(i);
+        if (use->is_MachProj()) {
+          startb->insert_node(use, ++node_pos);
+          _cfg.map_node_to_block(use, startb);
+          new_lrg(use, maxlrg++);
+        }
+      }
     }
     if (_lrg_map.live_range_id(base) == 0) {
       new_lrg(base, maxlrg++);