[Webkit-unassigned] [Bug 134508] In needs FTL implementation

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jul 2 15:43:00 PDT 2014


Filip Pizlo <fpizlo at apple.com> changed:

           What    |Removed                     |Added
 Attachment #234203|review?                     |review-
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--- Comment #2 from Filip Pizlo <fpizlo at apple.com>  2014-07-02 15:43:19 PST ---
(From update of attachment 234203)
View in context: https://bugs.webkit.org/attachment.cgi?id=234203&action=review

Add a test for the generic In case and change the sizeOfCheckIn.  Otherwise LGTM!

> Source/JavaScriptCore/ftl/FTLInlineCacheSize.cpp:70
> +#if CPU(ARM64)
> +    return 44; // TODO: I DON'T YET KNOW WHAT TO PUT HERE
> +#else
> +    return 32; // TODO: I DON'T YET KNOW WHAT TO PUT HERE 
> +#endif

In general, you should put the smallest value that doesn't result in a crash.  In this case it's just the size of a patchable jump, which on x86 is 5 and on ARM is 4.

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