[Bug rtl-optimization/121648] [13/14/15/16 Regression] wrong code at -O{s, 2, 3} with "-fno-tree-loop-im -fno-gcse -fno-code-hoisting -fno-tree-fre -fno-tree-pre -fno-tree-dominator-opts" on x86_64-linux-gnu

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121648

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
My gut feeling is this is another REG_UNUSED issue but I could be wrong.
The div/mod here is an important.