[Bug target/63805] ICE: in extract_insn, at recog.c:2327 with -mcpu=power8

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63805

--- Comment #14 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
>From correspondence with Uli Weigand, it appears that the code is valid even
with misaligned data, but a locking implementation is needed.  I haven't
checked whether other targets succeed here; that would be interesting to know.