[Bug middle-end/85516] [missed-optimization] gcc does not convert multiple compares against constants to a shift+bitmask test

[a...@cloudius-systems.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85516

--- Comment #2 from Avi Kivity <a...@cloudius-systems.com> ---
Interesting. Still missing optimizations - v cannot be larger than 9 (UB), and
bt is faster than mov+shift+and.