https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114403
--- Comment #4 from Sam James <sjames at gcc dot gnu.org> --- Created attachment 57752 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57752&action=edit EarlyCSE.cpp.ii.xz The bad object seems to be EarlyCSE.cpp.o. Building it with -O0 makes things work.