[Webkit-unassigned] [Bug 202189] New: [JSC] We should handle RegExpConstructor in DFG

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=202189

            Bug ID: 202189
           Summary: [JSC] We should handle RegExpConstructor in DFG
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ysuzuki at apple.com

JetStream2/string-unpack-code-SP's hottest part is `new RegExp(...)` where parameters are already proven (LazyJSConstant string and String constant).
We can completely eliminate this thing's RegExp allocation (RegExpObject could be allocated, but RegExp can be cached if we handle RegExpConstructor InternalFunction call in DFG).

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