https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108741
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
#pragma omp simd collapse(2) lastprivate(a0,a1,j)
for (a0 = 1; a0 <= 10; a0++)
for (j = 1; j <= 20; j++)
**a1 = a0; /// Segfaults here as *a0 points to invalid memory
You mean *a1. That testcase is invalid, when a1 is lastprivate, it's
privatized copy
is uninitialized at the start and a1 is assigned the last iteration's value.
