Re: [PATCH] RFC: Extend SLP permutation optimisations

2022-08-04 Thread Richard Sandiford via Gcc-patches
Richard Biener writes: > On Tue, 2 Aug 2022, Richard Sandiford wrote: > >> Currently SLP tries to force permute operations "down" the graph >> from loads in the hope of reducing the total number of permutes >> needed or (in the best case) removing the need for the permutes >> entirely. This patch

Re: [PATCH] RFC: Extend SLP permutation optimisations

2022-08-03 Thread Richard Biener via Gcc-patches
On Tue, 2 Aug 2022, Richard Sandiford wrote: > Currently SLP tries to force permute operations "down" the graph > from loads in the hope of reducing the total number of permutes > needed or (in the best case) removing the need for the permutes > entirely. This patch tries to extend it as follows: