[Bug tree-optimization/90905] missing -Wreturn-local-addr returning a local std::string::c_str()

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90905

--- Comment #9 from Martin Sebor <msebor at gcc dot gnu.org> ---
This still isn't diagnosed by GCC 12 even with its -Wuse-after-free and
-Wdangling-pointer.