> The usual x86 ports avoid this, because their must_return_in_mem hooks DTRT > already and we never fall into the default case.
So why not do the same for i686-elf? > I am very surprised this hasn't bitten someone before -- I presume this > never worked with i686-elf. It is possible this'll change some other ABI > where a fixed reg was permitted to be used in the manner that this now > prohibits, but I have a hard time thinking that happens. Shout if you > know of one. IMO that's not sufficient, you ought to go through all the back-ends and check that you aren't breaking anything with such a bold change. This code is more than 2 decades old and can affect every single port in a major way. -- Eric Botcazou
