[Bug target/110812] Check availability of builtins at expand time

[jan.wassenberg at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110812

--- Comment #39 from Jan Wassenberg <jan.wassenberg at gmail dot com> ---
> as you'd have to wrestle with integrating them cleanly, running them in parallel, configuring, etc.
Fair, thanks for sharing your thoughts.

> Not only that, hiway is too painfully slow to build that it would blow up testing times beyond all usefullness.
hm, I'm curious under what circumstances? Just tried a clean make -j on an M3
laptop which finished in 1min 23sec (though with Apple clang 17).