[all-commits] [llvm/llvm-project] a054e9: [SLP]Merge reorder and reuse shuffles.

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a054e94e9ea26b2aab85de02177e06b90ad8eef0
      https://github.com/llvm/llvm-project/commit/a054e94e9ea26b2aab85de02177e06b90ad8eef0
  Author: Alexey Bataev <alexey.bataev at intel.com>
  Date:   2021-03-02 (Tue, 02 Mar 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/AArch64/PR38339.ll
    M llvm/test/Transforms/SLPVectorizer/X86/PR32086.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shrink_after_reorder.ll

  Log Message:
  -----------
  [SLP]Merge reorder and reuse shuffles.

It is possible to merge reuse and reorder shuffles and reduce the total
cost of the vectorization tree/number of final instructions.

Differential Revision: https://reviews.llvm.org/D94992