[Bug ipa/86590] Codegen is poor when passing std::string by value with _GLIBCXX_EXTERN_TEMPLATE undefined

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86590

--- Comment #37 from Jonathan Wakely <redi at gcc dot gnu.org> ---
_M_create is at line 144 of basic_string.tcc