https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107197
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> --- Build with -O2 demonstrates the same valgrind problem, so someone this week, between the two git hashes mentioned, has broken the -O2 build. I haven't got the compute power here to do the bisect. Advice sought.
