https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103221
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2021-11-15 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- IIRC this is simplify_stmt_using_ranges not being applied during propagation and thus the copy not being recorded. At elimination time we are not recording new equivalences.