https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82094
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Richard Biener from comment #4) > Probably requires the target hook to also return a diagnostic substring. We have #define TARGET_OPTION_PRINT ix86_function_specific_print which is quite close what we would need.