[PATCH] D145578: [AArch64] Cost-model vector splat LD1Rs to avoid unprofitable SLP vectorisation

Fri Mar 17 03:49:40 PDT 2023

SjoerdMeijer added a comment.

In D145578#4201717 <https://reviews.llvm.org/D145578#4201717>, @fhahn wrote:

> Just a heads up with are seeing a 10% regression caused by this change in a very SLP sensitive workload (the original source for the `slp-fma-loss.ll` tests). I still have to double check where the slowdown is coming from exactly.

I thought we were helping your case, not regress it. :(
But thanks for the heads up, am happy to look at it.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145578/new/

https://reviews.llvm.org/D145578