https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96913
--- Comment #1 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- Created attachment 49178 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49178&action=edit _json.gcda Attaching _json.gcda in case it will shed the light if file was written incorrectly previously or it's a deserialization problem.