[Bug ipa/88702] [7/8/9 regression] We do terrible job optimizing IsHTMLWhitespace from Firefox

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88702

--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
Honza can you please create mozilla upstream bug where we can recommend to use
switch instead of series of if conditions?