[PATCH] D121448: [DAGCombine] fold (bitreverse(srl (bitreverse c), x)) -> (shl c, x)

[Chenbing.Zheng via Phabricator via llvm-commits]

Chenbing.Zheng updated this revision to Diff 414809.
Chenbing.Zheng added a comment.

rebase precommit tests D121507 <https://reviews.llvm.org/D121507>


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121448/new/

https://reviews.llvm.org/D121448

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/RISCV/bitreverse-srli-bitreverse.ll
  llvm/test/CodeGen/X86/combine-bitreverse.ll

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