[Webkit-unassigned] [Bug 67956] New: DFG JIT always speculates that ValueAdd is a numeric addition

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67956

           Summary: DFG JIT always speculates that ValueAdd is a numeric
                    addition
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fpizlo at apple.com


DFG JIT always speculates that ValueAdd is a numerical addition even when there is evidence to the contrary.  This causes all uses of "+" for string concatenation to fall off the speculative path.

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