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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/105329] [12/13 Regression] Bogus restrict
 warning when assigning 1-char string literal to std::string since
 r12-3347-g8af8abfbbace49e6
Date: Mon, 02 May 2022 16:04:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105329

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, while the patch makes the warning go away, it exports
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE15_M_replace_coldEPcmP=
Kcmm@@GLIBCXX_3.4.21
_ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE15_M_replace_coldEPwmP=
Kwmm@@GLIBCXX_3.4.21
which is certainly undesirable.  Either we'd need to make sure it isn't
exported, or export @@GLIBCXX_3.4.30 instead and somehow arrange for out of
line copy being used from libstdc++ rather than emitted into every library =
or
binary that uses it.=