[PATCH] D142656: [SVE][codegen] Add pattern for SVE multiply-add accumulate

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

and one more request, which I forgot to add earlier:

> The patch aims at:
>
> 1. Try to generate multiply-accumulate instructions post-isel at more places
> 2. Improving the current functionality of 'mad' instruction(which only kicks in if intrinsic is used)
> 3. with 'mla' instruction, it has been observed at multiple places that it generates extra register moves especially if the added is constant. This patch aims to improve this.

We should be doing one thing at a time. This patch is about 'mad' instruction selection, so please remove anything related to 3. in this patch, if possible, and prepare a follow up patch for that.


Repository:
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https://reviews.llvm.org/D142656