https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127339
Bug ID: 127339
Summary: GCC should allow using builtin type traits in mangled
names
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nikolasklauser at berlin dot de
Target Milestone: ---
Currently GCC doesn't mangle the builtin type traits (`__is_const`,
`__remove_cvref` etc.). This is quite unfortunate, since the builtin traits
tend to be a lot faster to evaluate than the standard library traits. libstdc++
already makes use of the builtins extensively in places where they aren't
mangled for improved compile times, and it would be great to allow them in
mangled names as well. Clang already allows mangling them, in which case we use
them through aliases in libc++ instead of going through a class template
instantiation.
