https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116907
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Sam James from comment #7) > Under gdb, I get: > ``` > during IPA pass: modref > /tmp/b.ii:81:3: internal compiler error: tree code ‘ggc_freed’ is not > supported in LTO streams Something is definitely being freed when it is still in reference. After I finish reducing this other testcase let me see if I can reduce this one further.