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

[bugzilla-daemon at webkit.org]

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





--- Comment #8 from Yuqiang Xian <yuqiang.xian at intel.com>  2011-10-19 17:45:02 PST ---
(In reply to comment #7)
> (In reply to comment #5)
> > (From update of attachment 111614 [details] [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.

bug #70460 is created for this.

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