[Bug target/92140] clang vs gcc optimizing with adc/sbb

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92140

--- Comment #22 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Hrm, I don't see how this is nicer than just adding a scratch in the
pattern?  What makes that a worse option?