https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61218
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Looks like LTO needs the cilk builtins.
- [Bug lto/61218] New: lto ICE building libcilk... ncahill_alt at yahoo dot com
- [Bug lto/61218] lto ICE building libcilk... rguenth at gcc dot gnu.org
