https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114751
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> --- I don't know of any difference compared to older compilers but gcov isn't my main expertise. I fear you have to dig into the gcov code to see where and how we exactly invent the stamp to see where it goes wrong for you. It might be possible to ask on the gcc-help@ mailinglist as well as that might receive a wider audience than bugzilla.