[Webkit-unassigned] [Bug 169823] New: It's not obvious why addSpillAndFill has to reject storing to wider spill slots

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=169823

            Bug ID: 169823
           Summary: It's not obvious why addSpillAndFill has to reject
                    storing to wider spill slots
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

The allocateStack fixes up ZDefs that are too narrow, so it seems weird that we need that escape hatch.

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