[Webkit-unassigned] [Bug 274587] New: WebKit release build fails in WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR with gcc 14

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=274587

            Bug ID: 274587
           Summary: WebKit release build fails in
                    WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR with gcc 14
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: loic.yhuel at softathome.com

When building WPE in release mode on Fedora 40 (gcc 14.1.1) :
In member function ‘IntegralType WTF::SingleThreadIntegralWrapper<IntegralType>::valueWithoutThreadCheck() const [with IntegralType = unsigned int]’,
    inlined from ‘PtrCounterType WTF::CanMakeCheckedPtrBase<StorageType, PtrCounterType>::ptrCountWithoutThreadCheck() const [with StorageType = WTF::SingleThreadIntegralWrapper<unsigned int>; PtrCounterType = unsigned int]’ at webkit/WebKitBuild/WPE/Release/WTF/Headers/wtf/CheckedRef.h:295:51,
    inlined from ‘static void WebCore::DeviceMotionController::operator delete(WebCore::DeviceMotionController*, std::destroying_delete_t, size_t)’ at webkit/Source/WebCore/dom/DeviceMotionController.h:40:5,
    inlined from ‘virtual WebCore::DeviceMotionController::~DeviceMotionController()’ at webkit/Source/WebCore/dom/DeviceMotionController.h:43:13:
webkit/WebKitBuild/WPE/Release/WTF/Headers/wtf/SingleThreadIntegralWrapper.h:43:59: error: ‘((const WTF::SingleThreadIntegralWrapper<unsigned int>*)this)[2].WTF::SingleThreadIntegralWrapper<unsigned int>::m_value’ is used uninitialized [-Werror=uninitialized]
   43 |     IntegralType valueWithoutThreadCheck() const { return m_value; }
      | 
(and many other occurences)

It seems gcc doesn't like the use of member variables after the destructor, and reports it as -Wuninitialized.

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