[Webkit-unassigned] [Bug 191012] New: Add support for GetStack FlushedDouble

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191012

            Bug ID: 191012
           Summary: Add support for GetStack FlushedDouble
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tzagallo at apple.com

LowerDFGToB3::compileGetStack assumed that we would not emit GetStack for doubles, but it turns out it may arise from the PutStack sinking phase: if we sink a PutStack into a successor block, other predecessors will emit a GetStack followed by a Upsilon.

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