https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86973
--- Comment #4 from Michael Matz <matz at gcc dot gnu.org> --- FWIW, the testcase is broken since it can be compiled, namely since the two attributes ms_abi and sysv_abi are accepted, which is r137525 from 2008. Only broken with -mno-accumulate-outgoing-args of course. So, I guess we can safely say that this is no regression in all sensible definitions of the word.
