[Webkit-unassigned] [Bug 163900] New: [DOMJIT] Tell IDL result type to DFG to drop type checks in AI

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=163900

            Bug ID: 163900
           Summary: [DOMJIT] Tell IDL result type to DFG to drop type
                    checks in AI
    Classification: Unclassified
           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: utatane.tea at gmail.com

We use heap prediction in propagation phase since it is more accurate,
but we can use IDL result type in AI to drop type checks.

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