https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77734
--- Comment #8 from John David Anglin <danglin at gcc dot gnu.org> --- Commit in comment #7 fixes failure on hppa-linux. The hppa64-*-* target doesn't support sibcalls, so test failure is expected. I think test needs to be skipped like thumb1 in plugin.exp.