[all-commits] [llvm/llvm-project] e971ca: [TableGen] Simplify some code. NFC

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e971ca8765741b1d5c4d2d3b79c0be49a55a1b28
      https://github.com/llvm/llvm-project/commit/e971ca8765741b1d5c4d2d3b79c0be49a55a1b28
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-03-31 (Fri, 31 Mar 2023)

  Changed paths:
    M llvm/utils/TableGen/DAGISelMatcherGen.cpp

  Log Message:
  -----------
  [TableGen] Simplify some code. NFC

This code was creating 1 entry or 0 entry std::array to pass to
to ArrayRef arguments. ArrayRef has a constructor from a single
object and we can use std::nullopt for an empty ArrayRef.