[Bug target/84406] [8 Regression][MSP430] ICE on valid code in find_widening_optab_handler_and_mode, at optabs-query.c:476

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84406

--- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 
---
(In reply to Jakub Jelinek from comment #4)
> I think Richard needs to explain why he changed the function from using
> GET_MODE_WIDER_MODE to the assert + simple iteration on modes, it isn't
> clear from his patch why it was changed.  Does that not really work with the
> variable sized modes on SVE?

FOR_EACH_MODE does use GET_MODE_WIDER_MODE.  I think problem is just
with the assertion.