[Bug rtl-optimization/113280] Strange error for empty inline assembly with +X constraint

[segher at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113280

--- Comment #10 from Segher Boessenkool <segher at gcc dot gnu.org> ---
> But the dump from combine does not make sense:

What about this does not make sense to you?
> Failed to match this instruction:
and then still doing stuff?  That is normal.  I'll work on making that look
better / make more sense, it always irked me as well.