[all-commits] [llvm/llvm-project] 12a8c4: [VPlan] Simplify extract-lane from same single-sca...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 12a8c418b4df10ae6241e26e9e114935656f197f
      https://github.com/llvm/llvm-project/commit/12a8c418b4df10ae6241e26e9e114935656f197f
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2026-09-24 (Thu, 24 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/early-exit-live-out-extract-lane.ll
    M llvm/test/Transforms/LoopVectorize/narrow-to-single-scalar.ll

  Log Message:
  -----------
  [VPlan] Simplify extract-lane from same single-scalar. (#226102)

Generalize extract-lane(idx, single-scalar) -> single-scalar to also
apply if there are multiple vectors to extract and all values are the
same single-scalar.

PR: https://github.com/llvm/llvm-project/pull/226102



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