> > This looks fine, though the commit message tells me it's not a good > idea, but it would be nice to know _why_ it's not good. Might be nice > to know for future reference. > Again LRA, expand time subregs are not handled by LRA, as far as I can tell. Moreover, this option is by default off, and even using the old IRA may not be a good idea to have subregs before register allocation step.
> Also, there's no test. Was there an issue that revealed this as not a > good idea? Could that become a test? > This error was found while running dg for our port with LRA on and this option on. Once removed the mexpand-adddi, a test is impossible to get. Thanks, Claudiu
