[Webkit-unassigned] [Bug 31475] Crash in StringHash::equal due to unaligned string data

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=31475





--- Comment #3 from Darin Adler <darin at apple.com>  2009-11-13 12:54:36 PST ---
It's easy to make an alternate StringHash::equal in a way that does not depend
on type punning in a non-portable way. The performance  optimization of
comparing four bytes at a time is not needed just to have WebKit. So I suggest
starting by changing StringHash::equal to only do the optimization on platforms
where it is safe.

The other question, though, is whether the unaligned strings are having some
sort of performance cost on platforms where the optimization is safe.

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