https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63844
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Valid testcase (well, assign sth useful to g...)
#define N 10000000
int a[N], b[N], c[N];
main()
{
int i, g;
#pragma omp parallel for num_threads(4)
for (i = 0; i < N; i++) {
a[i] = b[i] + c[i] + g;
}
}
in the OMP fn we fail to hoist the load of .omp_child_i->g out of the
loop and thus generate inferior code.
