https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88730
--- Comment #5 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- In both GCC 9.0.1 20190404 (experimental) and GCC 8.3.1 20190223 (Red Hat 8.3.1-2) I get <optimized out> for j outside the innermost loop. Does anyone still observe the problem in GCC8 or elsewhere?