[Webkit-unassigned] [Bug 46719] YARR JIT should fallback to YARR Interpreter instead of PCRE

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=46719





--- Comment #6 from Gavin Barraclough <barraclough at apple.com>  2010-09-29 13:04:09 PST ---
Looking at the results, a couple of bugs are showing up in the YARR interpreter.  We should probably fix these before landing this patch.

One bug looks like case-insensitivity for backref checking isn't working (tests 271-272 in the JSC regex tests).  I'd imagine this one is a trivial fix.  The other, 416, looks a little more complex, but ultimately (a\1?) is matching "", which ain't right, hopefully not too hard to track down.

Overall just switching over would probably be a net win, but since there are only two bugs in the way & they don't look too evil we should probably stick to our no-regressions policy, it shouldn't hold this patch up for too long.

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