[PATCH] D116105: [AArch64] Add a tablegen pattern for SQXTN2.

[Alexandros Lamprineas via Phabricator via llvm-commits]

labrinea created this revision.
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Converts concat_vectors(Vd, trunc(smin(smax Vm, -2^n), 2^n-1) to sqxtn2(Vd, Vm). Deliberately not handling v2i64->v2i32 as the min/max nodes are not legal (same as https://reviews.llvm.org/D103263).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116105

Files:
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/fpclamptosat_vec.ll
  llvm/test/CodeGen/AArch64/sqxtn2.ll

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