https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103676
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |10.4 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Known to fail| |10.3.0 Last reconfirmed|2021-12-12 00:00:00 |2021-12-14 Known to work| |9.3.0 Summary|internal compiler error: in |[10/11/12 Regression] |extract_constrain_insn, at |internal compiler error: in |recog.c:2671 |extract_constrain_insn, at | |recog.c:2671 --- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. It looks like it worked in GCC 9.3.0 (note remove -std=c++20 as it is no longer needed).