[all-commits] [llvm/llvm-project] b7a8f5: [SLP][NFC]Exit early from attempt-to-reorder, if i...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b7a8f5f4c978856852bc39dc3d29265756e37cfe
      https://github.com/llvm/llvm-project/commit/b7a8f5f4c978856852bc39dc3d29265756e37cfe
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-11-07 (Thu, 07 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

  Log Message:
  -----------
  [SLP][NFC]Exit early from attempt-to-reorder, if it is useless

Adds early exits, which just save compile time. It can exit earl, if the
total number of scalars is 2, or all scalars are constant, or the opcode
is the same and not alternate. In this case reordering will not happen
and compiler can exit early to save compile time



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