NEW 185922
date-format-xparb spends an awful lot of time doing fmod inside JSC::msToGregorianDateTime 
https://bugs.webkit.org/show_bug.cgi?id=185922
Summary date-format-xparb spends an awful lot of time doing fmod inside JSC::msToGreg...
Filip Pizlo
Reported 2018-05-23 14:18:31 PDT
It seems like the repeat fmod calls could be avoided if we did all of the to-seconds/to-minutes/to-hours conversions as part of one inlined math formula. For example, if we extract the hours component as a double, and then floor it, then we could extract the minutes without having to do an fmod: we'd just extract the fractional part dropped by the floor and multiply by 60.
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