[Webkit-unassigned] [Bug 68977] DFG JIT falls back on numerical comparisons when it does not recognize a prediction

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Sep 28 17:47:34 PDT 2011


https://bugs.webkit.org/show_bug.cgi?id=68977





--- Comment #4 from Filip Pizlo <fpizlo at apple.com>  2011-09-28 17:47:34 PST ---
(In reply to comment #2)
> (From update of attachment 109080 [details])
> r=me
> 
> Can double comparisons peephole fuse with branches?

Yup.  We drop through the shouldSpeculateInteger() check, and then trigger on the shouldSpeculateNumber() check (which means are these things either double or integer, plus still some cruft from static speculation days, which I'll get rid of eventually in another patch).

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