https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93856
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Last reconfirmed| |2020-02-24 CC| |msebor at gcc dot gnu.org Resolution|INVALID |--- Ever confirmed|0 |1 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Actually no, you're right, this exact one is not covered and likely is unreachable, because error ("attribute %<%E(%s)%> missing an argument", name, access_str); will return earlier if there are no arguments and so the only way to have idxnodes[0] NULL would be if there is an argument, but with NULL TREE_VALUE, which I think isn't possible.