[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

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #43434|0                           |1
        is obsolete|                            |

--- Comment #9 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Created attachment 43435
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43435&action=edit
Possible patch v2

(In reply to Jakub Jelinek from comment #8)
> From the above comments, from_mode can be also MODE_INT and to_mode
> MODE_PARTIAL_INT, though I wonder how, because it clearly couldn't reach the
> PSImode by FOR_EACH_MODE.

Ah, missed that.  So in those cases, the limit mode should
be the containing MODE_INT rather than to_mode itself.

Second try.