1.1 --- a/src/Stack.cpp	Sat Dec 22 16:42:20 2012 -0800
     1.2 +++ b/src/Stack.cpp	Sat Dec 22 18:22:14 2012 -0800
     1.3 @@ -67,7 +67,9 @@
     1.4  static inline size_t
     1.5  SizeForCodeFrame(Code *code)
     1.6  {
     1.7 -    return sizeof(Frame) + sizeof(LocalSlot) * (code->nlocals() + code->maxStackDepth());
     1.8 +    return sizeof(Frame) + 
     1.9 +           sizeof(void *) * (code->maxLoopDepth()) +
    1.10 +           sizeof(LocalSlot) * (code->nlocals() + code->maxStackDepth());
    1.11  }
    1.12  
    1.13  bool
    1.14 @@ -199,6 +201,22 @@
    1.15      top_.fp = top_.fp->prev();
    1.16  }
    1.17  
    1.18 +void
    1.19 +Frame::enterLoop(Zone *zone)
    1.20 +{
    1.21 +    assert(loopDepth_ < code_->maxLoopDepth());
    1.22 +    loopStack()[loopDepth_] = zone->heap().lifoPosition();
    1.23 +    loopDepth_++;
    1.24 +}
    1.25 +
    1.26 +void
    1.27 +Frame::leaveLoop(Zone *zone)
    1.28 +{
    1.29 +    assert(loopDepth_ > 0);
    1.30 +    loopDepth_--;
    1.31 +    zone->heap().unwindLifo(loopStack()[loopDepth_]);
    1.32 +}
    1.33 +
    1.34  void
    1.35  Frame::accept(VirtualObjectVisitor *visitor)
    1.36  {