https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83515
--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- With the patch in comment 8 all the tests compile and the original test in comment 0 gives ta runtime gfc::bank testing status: 0 (PASSED): Performance: 3532045.4736842103 gfc::vector testing status: 0 (PASSED): Performance: 2515463.5218254919 gfc::list testing status: 0 (PASSED): Performance: 2515463.5218254919 gfc::tree testing status: 0 (PASSED): Performance: 1045525.1575901519 gfc::dictionary testing status: 0 (PASSED): Performance: 836199.51143490721 gfc::graph testing status: 0 (PASSED): Performance: 118470.61398863114 Multi-index sort testing status: 0 (PASSED): Performance: 239778.83863299151 Dynamic type inferrence slowdown: 0.1258 67109934.2342983 0.1312 67109934.2342983 1.0432470247796064 > However, I do not have a working code sample to run The original test is not suitable for the test suite, but the author can probably reduce it.