[all-commits] [llvm/llvm-project] 22c017: [AArch64][NEON] Match (or (and -a b) (and (a+1) b)...

[Bradley Smith via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 22c017f0f902598505b57a9a7147278a7b4dad87
      https://github.com/llvm/llvm-project/commit/22c017f0f902598505b57a9a7147278a7b4dad87
  Author: Bradley Smith <bradley.smith at arm.com>
  Date:   2021-04-15 (Thu, 15 Apr 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    A llvm/test/CodeGen/AArch64/neon-bitselect.ll

  Log Message:
  -----------
  [AArch64][NEON] Match (or (and -a b) (and (a+1) b)) => bit select

With this patch vbslq_f32(vnegq_s32(a), b, c) lowers to a BIT instruction.

Co-authored-by: Paul Walker <paul.walker at arm.com>

Differential Revision: https://reviews.llvm.org/D100304