[Bug target/18343] mmix-knuth-mmixware testsuite failure: gcc.dg/builtin-return-1.c

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18343

--- Comment #5 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Woops, this PR was actually for an *identical* file in gcc.dg.  Anyway, that
test passes without the patch these days so let's keep this PR closed.