[all-commits] [llvm/llvm-project] e2723c: [InitUndef] Only compute DeadLaneDetector if subre...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e2723c2a8af69677d68e9c11a394f08e6c205153
      https://github.com/llvm/llvm-project/commit/e2723c2a8af69677d68e9c11a394f08e6c205153
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-09-12 (Thu, 12 Sep 2024)

  Changed paths:
    M llvm/lib/CodeGen/InitUndef.cpp

  Log Message:
  -----------
  [InitUndef] Only compute DeadLaneDetector if subreg liveness enabled (NFC) (#108279)

InitUndef currently always computes DeadLaneDetector, but only actually
uses it if subreg liveness is enabled for the target. Make the
calculation optional to avoid an unnecessary compile-time impact for
targets that don't enable subreg liveness.



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