[Bug middle-end/99520] Failure to detect bswap pattern

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99520

--- Comment #6 from ktkachov at gcc dot gnu.org ---
FWIW the version in the initial comment is what appears in 525.x264_r in
SPEC2017