RESOLVED FIXED Bug 65212
DFG speculative JIT never emits inline double comparisons, even when it would be obvious more efficient to do so 
https://bugs.webkit.org/show_bug.cgi?id=65212
Summary DFG speculative JIT never emits inline double comparisons, even when it would...
Filip Pizlo
Reported 2011-07-26 15:42:39 PDT
The DFG speculative JIT gets some of its performance improvement from treating certain numbers as doubles and never as ints. But comparisons don't take advantage of this, and instead either speculate integer, or perform slow C calls. The DFG speculative JIT's compare/branch implementations should inline double comparisons if it's obvious that this would be a win, for example if both operands are known to be double.
Attachments
the patch (9.47 KB, patch)
2011-07-26 15:47 PDT, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
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Filip Pizlo
Comment 1 2011-07-26 15:47:45 PDT
Created attachment 102066 [details] the patch
WebKit Review Bot
Comment 2 2011-07-26 18:27:56 PDT
Comment on attachment 102066 [details] the patch Clearing flags on attachment: 102066 Committed r91807: <http://trac.webkit.org/changeset/91807>
WebKit Review Bot
Comment 3 2011-07-26 18:28:01 PDT
All reviewed patches have been landed. Closing bug.
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