https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64727
--- Comment #16 from howarth at bromo dot med.uc.edu --- (In reply to Jason Merrill from comment #15) > Should be fixed now. Confirmed on x86_64-apple-darwin14 with... make -k check RUNTESTFLAGS="dg-torture.exp=darwin-cfstring-3.C --target_board=unix'{-m32,-m64}'"