[Bug c++/81314] [6/7/8 Regression] Undefined reference to a function with -fopenmp

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81314

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Testcase without STL:
// { dg-do link }

template <int N>
struct S {
  S () { s = 0; }
  S (const S &x) { s = x.s; }
  ~S () {}
  int s;
};

void
foo (S<2> &x)
{
  #pragma omp taskloop
  for (int i = 0; i < 100; ++i)
    x.s++;
}

int
main ()
{
  S<2> s;
  #pragma omp parallel
  #pragma omp master
  foo (s);
}