https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67239
--- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Richard Biener from comment #13) > > Can you check whether disabling PRE fixes the runtime failure? > -O1: OK. -O1 -finline-small-functions: Bad. -O1 -fno-tree-fre -finline-small-functions: Bad.