https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52473
--- Comment #17 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- Large-scale cshift is OK now. The original test case, or inlining something like b = cshift(a,-1) - 2*a + cshift(a,1) to efficiently calculate a second derivative on a circular array would be quite nice.