[Webkit-unassigned] [Bug 193978] New: ValueRecovery::recover() should purify NaN values it recovers.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jan 29 13:38:28 PST 2019


https://bugs.webkit.org/show_bug.cgi?id=193978

            Bug ID: 193978
           Summary: ValueRecovery::recover() should purify NaN values it
                    recovers.
           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: mark.lam at apple.com

According to DFG::OSRExit::executeOSRExit() and DFG::OSRExit::compileExit(), recovered DoubleDisplacedInJSStack values need to be purified.  ValueRecovery::recover() should do the same.

<rdar://problem/47625488>

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