[Bug target/94248] [amdgcn] Doesn't build with RTL checking

[ams at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94248

--- Comment #3 from Andrew Stubbs <ams at gcc dot gnu.org> ---
Actually, I think that recent changes to the register alignment mean that this
can't happen any more, so the whole check is probably obsolete.

I thought that --enable-checking=yes was already covering this. :-(