Do we need to do a loop invariant motion after loop interchange ?

[Richard Biener]

On Mon, Sep 7, 2020 at 11:43 AM HAO CHEN GUI via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Hi,
>
> I want to follow Lijia's work as I gained the performance benefit on
> some SPEC workloads by adding a im pass after loop interchange.  Could
> you send me the latest patches? I could do further testing. Thanks a lot.
>
> https://gcc.gnu.org/pipermail/gcc/2020-February/232091.html

Given the patches are quite complex I wonder if executing region-based LIM
from interchange makes more sense here.  Martin might want to work on this.

Richard.