https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94690
--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Tobias Burnus from comment #0) > * pr66199-4.f90 + pr66199-5.f90 do not recognize 'collapse(2)' Turns out this is due to truncating of the line... EXPECTED: There is some diagnostic for free-form Fortran and for -Wline-truncation also for fixed-form Fortran source form.