[Webkit-unassigned] [Bug 145496] New: Any exit from any JIT due to profiling for an inline cache should force all future compilations to be weary

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=145496

            Bug ID: 145496
           Summary: Any exit from any JIT due to profiling for an inline
                    cache should force all future compilations to be weary
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

Previously we had this thing where the FTL would ignore non-FTL exit sites.  That seemed like a good idea at the time, but there are some pathologies that we found in Speedometer where this isn't so good.  For example we might have an exit from the DFG that happened just after the FTL compilation was enqueued.

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