[PATCH] D51492: [X86][BtVer2] Fix WriteFShuffle256 schedule write info.
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 30 09:25:16 PDT 2018
RKSimon added a comment.
In https://reviews.llvm.org/D51492#1219429, @lebedev.ri wrote:
> Really ignorant question: how do you decide what is the right values?
> Is there some documentation?
AMD's Fam16h SOG which includes a latency spreadsheet - https://developer.amd.com/resources/developer-guides-manuals/
The Fam15h SOG have similar charts at the back of the PDF as do many of the Intel CPUs in their AOM docs
https://reviews.llvm.org/D51492
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