[all-commits] [llvm/llvm-project] 18c61f: [SLP]Skip undefs trying to find perfect/shuffled t...

[cilkplus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 18c61fc498c764d71b4d89444406230f2c34c6bd
      https://github.com/llvm/llvm-project/commit/18c61fc498c764d71b4d89444406230f2c34c6bd
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2021-04-22 (Thu, 22 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/remark_extract_broadcast.ll

  Log Message:
  -----------
  [SLP]Skip undefs trying to find perfect/shuffled tree entries matching.

We can skip check for undefs trying to find perfect/shuffled tree
entries matching, they can be ignored completely improving the final
cost/vectorization results.

Differential Revision: https://reviews.llvm.org/D101061