[PATCH] D131131: [WebAssembly] Improve codegen for v128.bitselect

[Thomas Lively via Phabricator via llvm-commits]

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Add patterns selecting ((v1 ^ v2) & c) ^ v2 and ((v1 ^ v2) & ~c) ^ v2 to
v128.bitselect.

Resolves #56827.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131131

Files:
  llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td
  llvm/test/CodeGen/WebAssembly/simd-arith.ll

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