https://bugs.kde.org/show_bug.cgi?id=432387
--- Comment #5 from Julian Seward <jsew...@acm.org> ---
(In reply to Andreas Arnez from comment #4)
> > + s390_insn_assert("vcdlg", m3 == 2 || m3 == 3);
> > (multiple times)
> > This will fail only on internal logic errors, correct? .. it can't fail only
> > because the insn can't be decoded, right?
> Actually, the latter. The s390_insn_assert macro passes a special kind of
> decoding failure (a "specification exception") up through the call chain
> if the asserted condition is not met.
So .. am a bit unclear about this, but it doesn't matter. It's enough to
say that it should be impossible to cause the front end to assert by feeding
it invalid instructions. Instead, all invalid insns should cause a SIGILL
to be handed to the guest (or whatever is appropriate on s390). So long
as the above holds, then I'm happy.
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