https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93364
anlauf at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |anlauf at gcc dot gnu.org --- Comment #2 from anlauf at gcc dot gnu.org --- The following patch would avoid the ICE: diff --git a/gcc/fortran/array.c b/gcc/fortran/array.c index 57972bc9176..471523fb767 100644 --- a/gcc/fortran/array.c +++ b/gcc/fortran/array.c @@ -864,6 +864,10 @@ gfc_set_array_spec (gfc_symbol *sym, gfc_array_spec *as, locus *error_loc) return false; } + /* Check F2018:C822. */ + if (sym->as->rank + sym->as->corank > GFC_MAX_DIMENSIONS) + goto too_many; + if (as->corank) { sym->as->cotype = as->cotype; I have a gut feeling that this kind of check should trigger earlier, but cannot find this place.