*** old/src/share/vm/opto/matcher.cpp	Tue Aug 16 10:00:34 2011
--- new/src/share/vm/opto/matcher.cpp	Tue Aug 16 10:00:34 2011

*** 824,833 ****
--- 824,834 ----
    // %%% Kludgery.  Instead, fix ideal adr_type methods for all these cases:
    if (nidx == Compile::AliasIdxTop && midx == Compile::AliasIdxRaw) {
      switch (n->Opcode()) {
      case Op_PrefetchRead:
      case Op_PrefetchWrite:
+     case Op_PrefetchAllocation:
        nidx = Compile::AliasIdxRaw;
        nat = TypeRawPtr::BOTTOM;
        break;
      }
    }