[Webkit-unassigned] [Bug 220432] New: Work around Clang bug in __builtin_return_address().

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220432

            Bug ID: 220432
           Summary: Work around Clang bug in __builtin_return_address().
           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

Clang's __builtin_return_address() currently sometimes returns a PAC signed pointer and sometimes not.  This patch works around that by always ensuring that the pointer is not signed.

rdar://71648468

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