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llvm / llvm-project / b487f9a7bd15e453a3ff7fcbfbc54e54eecf26d3
commitb487f9a7bd15e453a3ff7fcbfbc54e54eecf26d3[log] [tgz]
authorMichael Kruse <llvm-project@meinersbur.de>Tue Jul 22 11:39:01 2025 +0200
committerGitHub <noreply@github.com>Tue Jul 22 11:39:01 2025 +0200
treedaf992f89085201adbc8283457187a70b23e8f67
parent4b0625f05114af908283b4bc78321babfc03e252 [diff]
[Flang] Implement !$omp unroll using omp.unroll_heuristic (#144785)

Add support for `!$omp unroll` in Flang and basic MLIR
`omp.canonical_loop` modeling.

First step to add `omp.canonical_loop` modeling to the MLIR OpenMP
dialect with the goal of being more general than the current
`omp.loop_nest` approach:
 * Support for non-perfectly nested loops
 * Support for non-rectangular loops
 * Support for arbitrary compositions of loop transformations

This patch is functional end-to-end and adds support for `!$omp unroll`
to Flang. `!$omp unroll` is lowered to `omp.new_cli`,
`omp.canonical_loop`, and `omp.unroll_heuristic` in MLIR, which are
lowered to LLVM-IR using the OpenMPIRBuilder
(https://reviews.llvm.org/D107764).
7 files changed
tree: daf992f89085201adbc8283457187a70b23e8f67
  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. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-format-ignore
  29. .clang-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. pyproject.toml
  38. README.md
  39. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

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