On Wed, 26 Jul 2023, Jeff Law wrote: > > > On 7/26/23 07:27, Richard Biener via Gcc-patches wrote: > > The following patch makes sure to elide a redundant permute that > > can be merged with existing splats represented as load permutations > > as we now do for non-grouped SLP loads. This is the last bit > > missing to fix this PR where the main fix was already done by > > r14-2117-gdd86a5a69cbda4 > > > > Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. > > > > PR tree-optimization/106081 > > * tree-vect-slp.cc (vect_optimize_slp_pass::start_choosing_layouts): > > Assign layout -1 to splats. > > > > * gcc.dg/vect/pr106081.c: New testcase. > :-) Glad to see how easy this ended up being after the work you put > into pushing permutes around a couple years ago.
And of course Richard S. refactoring and improving this a lot after that. Richard.
