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December 2011

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2 discussions

SFX JIT
by wingoog moon 29 Dec '11

29 Dec '11

Hi Tring to understand SFX aritecture and I have found these functions JIT::privateCompileMainPass() JIT::privateCompileSlowCases() in http://trac.webkit.org/browser/trunk/Source/JavaScriptCore/jit/JIT.cpp. So as I understand each instruction is executed seperatly from others. It seems that JIT works tha way as interpretator does. What the difference between SFX JIT and SFX interpretor, exept that JIT keep cashed copies of functions. thanks for attention!

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CTI finctions
by wingoog moon 25 Dec '11

25 Dec '11

Hi, In "Selective Just-in-Time Compilation for Client-side Mobile JavaScript Engine" article I read that in JSC there are 109 bytecode isntructions, and 51 of them are handeled by CTI functions. But i could't find anywhere what is the CTI function and why they are used? thanks.

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