[Bug rtl-optimization/87761] [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87761

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #7)
> truncate:SI of ashift:DI looks wrong already; I'd expect ashift:SI of a
> subreg?

But then it would be a simplify-rtx.c issue.  Though, not sure if it isn't too
late to change simplify-rtx.c to simplify that differently now.