https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84121
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Marc Glisse from comment #1) > You can compile with -fsanitize=undefined then run your code, to understand > the issue. Oups, sorry, that doesn't show anything for your code, the problem is not what I thought, ignore my message.