[Bug target/43892] PowerPC suboptimal "add with carry" optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43892

--- Comment #29 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Yup, and that is a more elegant way of writing this anyway.  But we
still do not handle the exact testcase code optimally ;-)