[Bug target/110960] TestSatWidenMulPairwiseAdd in the Google Highway test suite fails when compiled with GCC 12 or later with the -mcpu=power9 option

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110960

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Mathieu Malaterre from comment #7)
> @rguenth You added `needs-bisection` keyword, but the example is quite
> small: 154 lines of code.

needs-bisection means to figure out which commit caused the regression.
That is different from needs-reduction keyword which says we need a reduction
still ...