[PATCH] D117269: [RISCV] Optimize some special mul operation in Zba extension

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

I don't understand the problem with 27, 45, and 81. There shouldn't be a problem generating two same instructions. X86 does it in multiple places. Can you explain more?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D117269/new/

https://reviews.llvm.org/D117269