[Webkit-unassigned] [Bug 67176] JavaScriptCore does not have tiered compilation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67176





--- Comment #10 from Filip Pizlo <fpizlo at apple.com>  2011-08-30 13:41:05 PST ---
(In reply to comment #9)
> > wtf/DoublyLinkedSentinelList.h: Added.
> 
> I think WTF::SentinelLinkedList can work for your purposes. Would be nice to only have one such class.

Note quite: SentinelLinkedList would result in inlining two copies of CallLinkInfo into CodeBlock.  CallLinkInfo is a big-ish structure.  I'm totally fine with doing that except for the increased mem usage.

So what do you think?  Have one such class but more space usage, or have two and win back ~10 words or so per CodeBlock?

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