[Bug rtl-optimization/69806] [6 Regression][SH] Combine doesn't see constant

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69806

--- Comment #7 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #6)
> r233159 was reverted in r233356.  Does this problem still happen?

Yes, problem is still there, because ...

(In reply to Jakub Jelinek from comment #5)
> I think you should bisect it to the exact commit.
> The only combine.c change in that range is r233159, but there is e.g.
> r233133 cse.c change too etc.

I can confirm that r233133 is the actual cause.