[PATCH] D32219: [X86][SSE] Improve DIV/SQRT throughput estimates for SB/HW schedule models

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In https://reviews.llvm.org/D32219#733371, @avt77 wrote:

> What are your plans here? I've just checked (with help of "-print-schedule=true") IMUL and LEA for Jaguar: they are completely wrong if we compare with numbers from http://www.agner.org/optimize/instruction_tables.pdf. Are we going to change all these things step-by-step?


The basic process will be: add thorough tests, identify issues, fix issues (either direct commit or reviewed patch if it warrants discussion). I'm intending to initially focus on the SSE/AVX instructions so if you want to add scheduler tests for the mul/imul/lea/etc. instructions then I say go for it.


Repository:
  rL LLVM

https://reviews.llvm.org/D32219