[Webkit-unassigned] [Bug 70460] New: DFG JIT 32_64 - remove unnecessary double unboxings in fillDouble/fillSpeculateDouble

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70460

           Summary: DFG JIT 32_64 - remove unnecessary double unboxings in
                    fillDouble/fillSpeculateDouble
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          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


As pointed out by Gavin in bug #70418, when a value is already in memory we can avoid loading it to two GPRs at first and then unboxing them to a FPR.

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