[Bug target/69416] [6 Regression] Nonsense rtl checking failure

[wdijkstr at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416

--- Comment #6 from Wilco <wdijkstr at arm dot com> ---
(In reply to Andrew Pinski from comment #4)
> Actually I think the problem is (const_int 8 [0x8])  does that make sense
> for CC mode?  I don't think it does.

It should make sense as a CCmode immediate. It relies on CCmode being treated
as an opaque type rather than an integer type. There are checks in several
places that block simplifications on CCmode, but I guess there are some missing
- it's the first time if_then_else has a CCmode result...