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llvm / llvm-project / 775ad3e49c83407b79dd5ad533204884cb8b23ce
commit775ad3e49c83407b79dd5ad533204884cb8b23ce[log] [tgz]
authorRazvan Lupusoru <razvan.lupusoru@gmail.com>Wed Jun 11 07:16:58 2025 -0700
committerGitHub <noreply@github.com>Wed Jun 11 07:16:58 2025 -0700
treec2942dd82ba6e63e6121ffed4fa07d9fc77176b1
parentfa9e1a1515549124dd76ddc55a8a532795d51fae [diff]
[flang][acc] Ensure all acc.loop get a default parallelism determination mode (#143623)

This PR updates the flang lowering to explicitly implement the OpenACC
rules:
- As per OpenACC 3.3 standard section 2.9.6 independent clause: A loop
construct with no auto or seq clause is treated as if it has the
independent clause when it is an orphaned loop construct or its parent
compute construct is a parallel construct.
- As per OpenACC 3.3 standard section 2.9.7 auto clause: When the parent
compute construct is a kernels construct, a loop construct with no
independent or seq clause is treated as if it has the auto clause.
- Loops in serial regions are `seq` if they have no other parallelism
marking such as gang, worker, vector.

For now the `acc.loop` verifier has not yet been updated to enforce
this.
7 files changed
tree: c2942dd82ba6e63e6121ffed4fa07d9fc77176b1
  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
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