[Bug middle-end/79173] add-with-carry and subtract-with-borrow support (x86_64 and others)

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79173

--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Sorry, in that case nothing needs to be done for riscv.  I'm sure aarch64, arm
has one (e.g. adcs), I think powerpc has some, but e.g. PR43892 is still open,
and I'm sure s390 has them too (alc*, slb*).