[all-commits] [llvm/llvm-project] 954c1e: [SLP] Adjust debug output for store vectorization ...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 954c1ed009d423ca9593ee63479a9394a23864fd
      https://github.com/llvm/llvm-project/commit/954c1ed009d423ca9593ee63479a9394a23864fd
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2022-09-23 (Fri, 23 Sep 2022)

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

  Log Message:
  -----------
  [SLP] Adjust debug output for store vectorization failure

When store vectorization is infeasible, it's helpful to have a debug logging indication of why.  A case I've hit a couple times now is accidentally using -march instead of -mtriple and getting the default TTI results.  This causes max-vf to become 1, and thus hits the added logging line.