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llvm / llvm-project / 9b4de7d8850d0e66cd49224cef8de17a41e1746a
commit9b4de7d8850d0e66cd49224cef8de17a41e1746a[log] [tgz]
authorPhilip Reames <preames@rivosinc.com>Thu May 22 08:29:05 2025 -0700
committerGitHub <noreply@github.com>Thu May 22 08:29:05 2025 -0700
tree3800842d392f83a858047153d16ba029c1f7094b
parentc432936b05d9e47c23dbbbe00ba02e11384fe6ff [diff]
[RISCV] Lower PARTIAL_REDUCE_[S/U]MLA via zvqdotq (#140950)

The semantics of the PARTIAL_REDUCE_SMLA with i32 result element, and i8
sources corresponds to vqdot. Analogously PARTIAL_REDUCE_UMLA
corresponds to vqdotu. There is currently no vqdotsu equivalent.

This patch is a starting place. We can extend this quite a bit more, and
I plan to take a look at the fixed vector lowering, the TTI hook to
drive loop vectorizer, and to try to integrate the reduction based
lowering I'd added for zvqdotq into this flow.
3 files changed
tree: 3800842d392f83a858047153d16ba029c1f7094b
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-format-ignore
  30. .clang-tidy
  31. .git-blame-ignore-revs
  32. .gitattributes
  33. .gitignore
  34. .mailmap
  35. CODE_OF_CONDUCT.md
  36. CONTRIBUTING.md
  37. LICENSE.TXT
  38. pyproject.toml
  39. README.md
  40. SECURITY.md
README.md

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