1.1 --- a/jitcraft/Heap.cpp	Sat Jul 07 17:11:31 2012 -0700
     1.2 +++ b/jitcraft/Heap.cpp	Sat Jul 07 20:28:29 2012 -0700
     1.3 @@ -22,6 +22,7 @@
     1.4  #include "VirtualObjectVisitor.h"
     1.5  #include "ObjectVisitor.h"
     1.6  #include "Zone.h"
     1.7 +#include "StringPool.h"
     1.8  
     1.9  using namespace jc;
    1.10  
    1.11 @@ -351,6 +352,9 @@
    1.12  void
    1.13  Heap::sweep()
    1.14  {
    1.15 +    // Before destroying mark bits, sweep weak roots.
    1.16 +    zone_->symbols()->sweep();
    1.17 +
    1.18      // Note: we don't bother sweeping the LIFO space.
    1.19      SweepOldSpace(&mapSpace_);
    1.20      SweepOldSpace(&oldSpace_);