https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88920
--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Various effective targets are checked already in the initialization of various *.exp, etc. E.g. struct-layout-1.exp checks check_effective_target_short_enums, gomp.exp checks check_effective_target_fopenmp, dfp.exp checks dfp effective target, lto.exp lto, sso.exp int32, ubsan.exp that -fsanitize=undefined works, many others. That is again normal and happens a lot. I really don't understand why you care about this. The log file is indeed verbose and prints everything that has been executed. Are you upset that there is fatal error: in there, or even error: would upset you (as I said above, that happens e.g. with ilp32 or lp64 etc. if those fail).
