[Webkit-unassigned] [Bug 157933] New: Incorrect handling of constant LHS *comma* expression in divide logic

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157933

            Bug ID: 157933
           Summary: Incorrect handling of constant LHS *comma* expression
                    in divide logic
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: NeedsRadar
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: oliver at apple.com
                CC: fpizlo at apple.com, ggaren at apple.com, sbarati at apple.com

Super simple test case:

for(;;)(1,1)/1

It looks (from the back trace) like some places are correctly considering (1,1) as constant, but other places aren't. The net effect is that we assert/emit breakpoint in a case where we think we should have constant folded (or something)

--Oliver

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