https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63156
--- Comment #6 from Carrot <carrot at google dot com> --- (In reply to Steven Bosscher from comment #5) > (In reply to Carrot from comment #4) > > For a AUTOINC rtl expression, we create two refs, one def and one use, but > > only the def gets the flag DF_REF_READ_WRITE, the use doesn't have this > > flag. > > Then this is fall-out of PR32339. Since it is intentionally to remove flag DF_REF_READ_WRITE on use, in web_main we should also check all defs with flag DF_REF_READ_WRITE, union it with corresponding use.
