[Webkit-unassigned] [Bug 64068] New: DFG JIT unnecessarily boxes and unboxes values during silent spilling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64068

           Summary: DFG JIT unnecessarily boxes and unboxes values during
                    silent spilling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fpizlo at apple.com


DFG silent spilling is performed for guarded slow-path C function calls.  There is a one-to-one relationship between each silent spill and silent fill.  Hence, there is no need to box and unbox values, yet the DFG JIT boxes and unboxes anyway.

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.