https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109715
Bug ID: 109715
Summary: abi_tag attribute is not applied to variable templates
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: barry.revzin at gmail dot com
Target Milestone: ---
Given:
template <class T>
[[gnu::abi_tag("ABI")]] inline int value = 0;
int get() {
return value<int>;
}
gcc mangles the variable value<int> as _Z5valueIiE, instead of
_Z5valueB3ABIIiE. That is, there is no "[abi:ABI]" tag.
clang does propagate this attribute as expected.
gcc does include the abi_tag in the mangling in other template cases (static
data member of a class template, static local variable of a function template,
etc.)
This is a related (but, I'm guessing, much easier) problem to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88061.
