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llvm / llvm-project / c792b25e47e00dbf2cd9654bf806fe5f9de6e44e
commitc792b25e47e00dbf2cd9654bf806fe5f9de6e44e[log] [tgz]
authorPierre van Houtryve <pierre.vanhoutryve@amd.com>Fri Apr 25 12:10:02 2025 +0200
committerGitHub <noreply@github.com>Fri Apr 25 12:10:02 2025 +0200
treee362040e718e7f98f8d6016b3cea076e035255d1
parent6738cfe0a40af2754000346ff090ebb2115ce15f [diff]
[GlobalISel] Add `combine` action for C++ combine rules (#135941)

Adds a `combine` action (DAG operator) which allows for easy definition of
combine rule that only match one or more instructions, and defer all remaining
match/apply logic to C++ code.

This avoids the need for split match/apply function in such cases. One function
can do the trick as long as it returns `true` if it changed any code.

This is implemented as syntactic sugar over match/apply. The combine rule is
just a match pattern BUT every C++ pattern inside is treated as an "apply" function.
This makes it fit seamlessly with the current backend.

Fixes #92410
6 files changed
tree: e362040e718e7f98f8d6016b3cea076e035255d1
  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

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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