*** old/src/share/vm/opto/matcher.cpp	Mon Sep 14 15:54:43 2015
--- new/src/share/vm/opto/matcher.cpp	Mon Sep 14 15:54:43 2015

*** 2020,2030 ****
--- 2020,2030 ----
  
  //------------------------------find_shared------------------------------------
  // Set bits if Node is shared or otherwise a root
  void Matcher::find_shared( Node *n ) {
    // Allocate stack of size C->unique() * 2 to avoid frequent realloc
!   MStack mstack(C->unique() * 2);
!   MStack mstack(C->live_nodes() * 2);
    // Mark nodes as address_visited if they are inputs to an address expression
    VectorSet address_visited(Thread::current()->resource_area());
    mstack.push(n, Visit);     // Don't need to pre-visit root node
    while (mstack.is_nonempty()) {
      n = mstack.node();       // Leave node on stack