https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
Gilles Gouaillardet <gilles.gouaillardet at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |gilles.gouaillardet at gmail dot c | |om --- Comment #2 from Gilles Gouaillardet <gilles.gouaillardet at gmail dot com> --- This is the libc subroutine void sync(void); The point here is any subroutine (that will not cause a crash) can be used to evidence the issue.