[Webkit-unassigned] [Bug 158083] LLInt should support other types of prototype GetById caching.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158083

--- Comment #22 from Keith Miller <keith_miller at apple.com> ---
(In reply to comment #21)
> Per your request before on inlining the getter call, I think the simplest
> way to implement it is to follow how we do it in
> PolymorphicAccess/operationGetByIdOptimize. PolymorphicAccess has the inline
> cache repatching code used in the JITs. The assembler in PolymorphicAccess
> more or less models X86 so it shouldn't be too hard to follow and translate
> to LLInt assembly. I'll also see if I can find some better information about
> the calling convention too. Let me know if you have any other questions.

Also, it might be helpful to look at JSStack.h, in particular, the CallFrameHeaderEntry enum since that represents the expected layout of a JS frame at the end of the function prologue.

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