case      LOS_SPACE: Header.initializeMarkSweepHeader(ref, tib, bytes, isScalar); return;
case      LOS_SPACE: Header.initializeMarkSweepHeader(ref, tib, bytes); return;
  public final void postAlloc(VM_Address ref, Object[] tib, int bytes,                              boolean isScalar, int allocator)    throws VM_PragmaInline {    switch (allocator) {    case  NURSERY_SPACE: return;    case   MATURE_SPACE: if (!Plan.copyMature) Header.initializeMarkSweepHeader(ref, tib, bytes, isScalar); return;    case IMMORTAL_SPACE: ImmortalSpace.postAlloc(ref); return;    case      LOS_SPACE: Header.initializeMarkSweepHeader(ref, tib, bytes, isScalar); return;    default:      if (VM_Interface.VerifyAssertions)	VM_Interface.sysFail("No such allocator");    }  }