http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50982
--- Comment #50 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-12-22 19:03:02 UTC --- Those tests have a target selector, which doesn't include AIX: { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } So I should have realised they wouldn't run. Ideally we'd add AIX to all those files but I imagine not all of them will pass, so it would have to be removed again for the ones that fail, if the failure isn't something easily fixable