[Bug c++/24735] New: [gomp] "#pragma omp barrier" doesn't work in templates

["reichelt at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The following program doesn't work correctly when compiled with -fopenmp:

==============================
#include<cstdio>
#include<omp.h>
#include<unistd.h>

template<int> void foo()
{
    #pragma omp parallel
    {
        if (omp_get_thread_num()==0) sleep(1);
        printf("ONE\n");
        #pragma omp barrier
        printf("TWO\n");
    }
}

int main()
{
    foo<0>();
    return 0;
}
==============================

The output (with two threads) is:
ONE
TWO
ONE
TWO

If I make foo a non-template function, I get the correct output:
ONE
ONE
TWO
TWO

Maybe related to PR 24734.


-- 
           Summary: [gomp] "#pragma omp barrier" doesn't work in templates
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: wrong-code, openmp
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24735