[Webkit-unassigned] [Bug 75812] JSC should be a triple-tier VM

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=75812


Filip Pizlo <fpizlo at apple.com> changed:

           What    |Removed                     |Added
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 Attachment #123066|0                           |1
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--- Comment #28 from Filip Pizlo <fpizlo at apple.com>  2012-01-19 01:16:31 PST ---
Created an attachment (id=123089)
 --> (https://bugs.webkit.org/attachment.cgi?id=123089&action=review)
work in progress

I've got some hilarious value profiling pathologies to fix still.  Right now this patch results in a 5% slow-down on SunSpider purely because some code never gets profiled, and the DFG doesn't handle that gracefully.  Should be easy to fix though.

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