[Bug c++/97771] gcc/g++ failed to generate proper .init_array entries for local scope function, should create "axG", .init_array comdat

[erstrauss at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97771

--- Comment #7 from Erez Strauss <erstrauss at gmail dot com> ---
Hi Andrew,

Here is a very simple test program, under clang++ its output is 3, as expected.
Its output is 2 in case of g++ 11.2.1 20210728 (Red Hat 11.2.1-1)

#include <iostream>

static int X;

typedef void (*funcP)();

static funcP g_init_func [[gnu::used, gnu::section(".init_array")]] {
[]()->void{++X;} };

void funcA() {
    static funcP init_func [[gnu::used, gnu::section(".init_array")]] {
[]()->void{++X;} };
}

template<typename T>
void funcB() {
    static funcP init_func [[gnu::used, gnu::section(".init_array")]] {
[]()->void{++X;} };
}

void testT() {
    funcB<int>();
}


int main()
{
    std::cout << X << std::endl;
    testT();
    return 0;
}


Please test the above to generate 3 as output with g++.
Thanks,
Erez