https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106955
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Martin Liška from comment #3) > Started with r13-674-g8ccdc7ce33f5e7ca, but I don't think it's the root > cause. Certainly not, when the preprocessed code from comment 0 doesn't produce a -fcompare-debug failure for GCC 12.