[PATCH] D99317: [RISCV] Add RISCVISD opcodes for CLZW and CTZW.

[Alex Bradbury via Phabricator via llvm-commits]

asb accepted this revision.
asb added a comment.

LGTM, this seems the right direction to go in.

In theory I much prefer patterns in .td files wherever possible (shorter pattern description, harder for silly logic mistakes to hide within boilerplate etc). But the reality is obviously they can become brittle if above a certain level of complexity, as with many RV64 '*W' patterns.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D99317/new/

https://reviews.llvm.org/D99317