[all-commits] [llvm/llvm-project] 45e41f: [SLP] Compute a shuffle mask for SK_InsertSubvecto...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 45e41f9686ee9fbc0598da2acb8316cdfd12e08d
      https://github.com/llvm/llvm-project/commit/45e41f9686ee9fbc0598da2acb8316cdfd12e08d
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2024-03-15 (Fri, 15 Mar 2024)

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

  Log Message:
  -----------
  [SLP] Compute a shuffle mask for SK_InsertSubvector (#85408)

This is the third of a series of small patches to compute shuffle masks
for the couple of cases where we call getShuffleCost without one. My
goal is to add an invariant that all calls to getShuffleCost for fixed
length vectors have a mask.

After this change, there is one SK_InsertSubvector case left. I excluded
it from this patch just because I thought it worthy of individual
attention and review.

---------

Co-authored-by: Alexey Bataev <a.bataev at gmx.com>



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