[all-commits] [llvm/llvm-project] 09a29f: [VPlan] Don't collect live-ins in collectUsersInEx...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 09a29fcc8dbbb2cc1c0fdf26ef4f8fafab4e03d9
      https://github.com/llvm/llvm-project/commit/09a29fcc8dbbb2cc1c0fdf26ef4f8fafab4e03d9
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-01-27 (Mon, 27 Jan 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.h
    M llvm/test/Transforms/LoopVectorize/single_early_exit_live_outs.ll

  Log Message:
  -----------
  [VPlan] Don't collect live-ins in collectUsersInExitBlocks. (NFC) (#123819)

Live-ins don't need to be handled, other than adding to the exit phi
recipe. Do that early and assert that otherwise the exit value is
defined in the vector loop region.

This should enable simply skipping other exit values that do not need
further fixing, e.g. if handling the exit value from the early exit
directly in handleUncountableEarlyExit.

PR: https://github.com/llvm/llvm-project/pull/123819



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