[Bug tree-optimization/110248] ivopts could under-cost for some addressing modes on len_{load,store}

[juzhe.zhong at rivai dot ai via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110248

--- Comment #3 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
You mean add a default argument = nullptr to targethook legitimate_address_p to
let powerPC do more middle-end address ivopts analysis?

If yes, I am ok with that. Let's see Richard and Richi more comments.

Thanks.