[ComodoHacker]

V8 includes JIT compiler. Could it really be "much more" optimized?

[perbu]

If you look at Hiphop vs. HHVM there is certainly a significant performance upside in taking advantage of clangs or gccs ability to produce efficient code.

I'm not sure why Facebook decided to stop maintaining hiphop. Perhaps manageability wasn't great.

[mbel]

Perhaps. JIT compiler has to care deeply for compilation time. For AOT compiler compilation time is a little bit less pressing problem which leaves some space for optimization passes that take too long for JIT.

[notsohuman]

I agree V8 does an awesome job buts it compilation phase is not done separate before running. Lot could done to gain the speed in those areas.

[notsohuman]

there is always something more that can be done