[Bug libstdc++/103629] Possible miscompilation visible using pthread + exception

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103629

--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Inside the lambda run by std::call_once, the address of sTreeTypeName is
0x404098, but after std::call_once finishes, the address of the object being
dereferenced is 0x7ffff7fc2090