https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110311
--- Comment #14 from Jürgen Reuter <juergen.reuter at desy dot de> --- Did anybody manage to reproduce this? Download https://whizard.hepforge.org/downloads/?f=whizard-3.1.2.tar.gz You need OCaml as a prerequisite, though. Then configure, make, cd tests/functional_tests make check TESTS=nlo_9.run This will fail, as there are NaNs produced in our RNG module which are presumably caused by this regression in the tree-optimizer. At the moment I am deeply struggling with generating a reproducer but I don't know how tbh.