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llvm / llvm-project / de61875e9d276cdb1899c2bea818bca86025b35a
commitde61875e9d276cdb1899c2bea818bca86025b35a[log] [tgz]
authorHugo Trachino <hugo.trachino@huawei.com>Wed Jul 17 10:22:25 2024 +0100
committerGitHub <noreply@github.com>Wed Jul 17 10:22:25 2024 +0100
treea114e45e640493d27f8e7392f502349bd3fc9c48
parentc7309dadbf5a07353fa18a712895e3cfb48a78e7 [diff]
[MLIR][Vector] Generalize DropUnitDimFromElementwiseOps to non leading / trailing dimensions. (#98455)

Generalizes DropUnitDimFromElementwiseOps to support inner unit
dimensions.
This change stems from improving lowering of contractionOps for Arm SME.
Where we end up with inner unit dimensions on MulOp, BroadcastOp and
TransposeOp, preventing the generation of outerproducts.
discussed
[here](https://discourse.llvm.org/t/on-improving-arm-sme-lowering-resilience-in-mlir/78543/17?u=nujaa).

Fix after : https://github.com/llvm/llvm-project/pull/97652 showed an
unhandled edge case when all dimensions are one. The generated target
VectorType would be `vector<f32>` which is apparently not supported by
the mulf.
In case all dimensions are dropped, the target vectorType is
vector<1xf32>

---------

Co-authored-by: Benjamin Maxwell <macdue@dueutil.tech>
2 files changed
tree: a114e45e640493d27f8e7392f502349bd3fc9c48
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. CODE_OF_CONDUCT.md
  34. CONTRIBUTING.md
  35. LICENSE.TXT
  36. pyproject.toml
  37. README.md
  38. SECURITY.md
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