[PATCH] D82091: [ARM][CostModel] Select instruction costs.

[Sam Parker via Phabricator via llvm-commits]

samparker added a comment.

> Can you explain where the cost of 2 is coming form?

Well the IT isn't guaranteed to be free, it still takes up code size and, of course, it doesn't even exist for T1. But in my testing, a few months ago, it wasn't worth differentiating between M-profile versions - but I will double check. The cmsis numbers for the M33 look good, it doesn't effect many kernels but they're all decent improvements.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D82091/new/

https://reviews.llvm.org/D82091