[Webkit-unassigned] [Bug 80415] New: Eliminate redundant Phis in DFG

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80415

           Summary: Eliminate redundant Phis in DFG
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: yuqiang.xian at intel.com
                CC: barraclough at apple.com, fpizlo at apple.com


Although this may not have any advantage at current stage, this is towards minimal SSA to make more high level optimizations (like bug 76770) easier.
We have the choices either to build minimal SSA from scratch or to keep current simple Phi insertion mechanism and remove the redundancy in another phase. Currently we choose the latter because the change could be smaller.

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