https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102162
--- Comment #17 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to dave.anglin from comment #14) > On 2021-09-01 6:35 p.m., dave.anglin at bell dot net wrote: > > We only get correct code at -O0. > Maybe cpymemsi expander is problem. It can't be as that is only used for !TARGET_64BIT and this is a TARGET_64BIT as obvious by "LEVEL 2.0w".