case  DEFAULT_SPACE:  return def.alloc(isScalar, bytes); case IMMORTAL_SPACE:  return immortal.alloc(isScalar, bytes);
case  DEFAULT_SPACE:  return def.alloc(bytes, align, offset); case IMMORTAL_SPACE:  return immortal.alloc(bytes, align, offset);
  public final VM_Address alloc(int bytes, boolean isScalar, int allocator)    throws VM_PragmaInline {    switch (allocator) {    case      LOS_SPACE:  // no los, so use default allocator    case  DEFAULT_SPACE:  return def.alloc(isScalar, bytes);    case IMMORTAL_SPACE:  return immortal.alloc(isScalar, bytes);    default:      if (VM_Interface.VerifyAssertions) 	VM_Interface.sysFail("No such allocator");       return VM_Address.zero();    }  }