[Bug target/97437] builtins subcarry and addcarry still not generate the right code. Not get optimized to immediate value

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97437

--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> ---
So is that something than can/should be improved in ix86_cc_mode?