https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70341
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.9/5/6/7 Regression] Code |[4.9/5/6/7 Regression] cost
|size increase due to |model for addresses is
|earlier switch case |incorrect, slsr is using
|lowering. |reg + reg + CST for arm
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am suspecting what is happening on arm is the cost model for addresses is
incorrect and allowing [r1 + r2 + const] so slsr is picking that.
This is why it works correctly on aarch64 because the cost model is correct and
rejects that mode.
