[Webkit-unassigned] [Bug 70418] DFG JIT 32_64 - improve double boxing/unboxing

Wed Oct 19 16:05:57 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=70418

--- Comment #7 from Yuqiang Xian <yuqiang.xian at intel.com>  2011-10-19 16:05:57 PST ---
(In reply to comment #5)
> (From update of attachment 111614 [details])
> This is excellent.  I think we might be able to do even better in some cases - from fillSpeculateDouble, if a value is currently in memory we should probably be loading directly into fpr rather than going via a register - we could then compare to memory to test the tag, or compare the fpr to itself to test form NaN-encoded values.
> Still, this improvement is simple awesome!

Hi Gavin, good point! I think it's something that we can do immediately.

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