[Bug target/126118] [16/17 Regression][SH] Redundant movt tst sequence

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126118

--- Comment #3 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Drea Pinski from comment #2)
> (clobber:QI (const_int 0 [0]))
> Happens when creating the subreg:
> (subreg:QI (reg:SI 147 t) 0)
> fails.
> 
> 
> Which most likely points to r16-718-geb2ea476db2182 causing the difference.
> See PR 119966 also.

Thanks for the pointer.

Any suggestion how/what to adjust in the SH backend?