[Webkit-unassigned] [Bug 213307] REGRESSION(r263035): stress/get-prototype-of.js broken on s390x

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=213307

--- Comment #4 from Alexey Shvayka <shvaikalesh at gmail.com> ---
Thank you for detailed report, Michael!

Looks like LLInt fast path check (https://trac.webkit.org/browser/webkit/trunk/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm?rev=263044#L1506) doesn't perform as intended.
Is it possible that bit shift in declaration of OverridesGetPrototypeOutOfLine (https://trac.webkit.org/browser/webkit/trunk/Source/JavaScriptCore/runtime/JSTypeInfo.h?rev=263044#L69) is at fault?

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