Address region = VM_Memory.alignUp(Address.fromInt(initialOffset),
Address region = VM_Memory.alignUp(initialOffset.toWord().toAddress(),
  public static final int alignAllocation(int initialOffset, int align,                                          int offset)    throws UninterruptiblePragma, InlinePragma {    Address region = VM_Memory.alignUp(Address.fromInt(initialOffset),                                       MIN_ALIGNMENT);    return Allocator.alignAllocation(region, align, offset).toInt();  }