https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81805
--- Comment #10 from Tom de Vries <vries at gcc dot gnu.org> --- [ Redoing https://gcc.gnu.org/ml/gcc-bugs/2017-08/msg01333.html, using PR81875 instead of PR81844, since PR81844 was overwritten ] Filed comment 3 as PR81875 - omp for loop optimized away This PR remains for the analysis of the test-case from comment 0.