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llvm / llvm-project / 5e28af04f32455f93975e227d08f502faa45247c
commit5e28af04f32455f93975e227d08f502faa45247c[log] [tgz]
authorAaron Ballman <aaron@aaronballman.com>Wed May 28 10:07:14 2025 -0400
committerGitHub <noreply@github.com>Wed May 28 10:07:14 2025 -0400
treeaae4a86be7e8ff83763a01ce63b1a9e8e45293af
parent2b1ebef8b8a5af7092de80daafd2743683d0e8c8 [diff]
[C] Fix parsing of [[clang::assume]] (#141747)

The assumption attribute is exposed with a Clang spelling, which means
we support __attribute__((assume)) as well as [[clang::assume]] as
spellings for the attribute.

In C++, the [[clang::assume]] spelling worked as expected. In C, that
spelling would emit an "unknown attribute ignored" diagnostic. This was
happening because we were failing to pass in the scope name and source
location when creating the attribute. In C++, this worked by chance
because [[assume]] is a known attribute in C++. But in C, where there is
thankfully no [[assume]] standard attribute, the lack of a scope meant
we would set the attribute kind to "unknown".
5 files changed
tree: aae4a86be7e8ff83763a01ce63b1a9e8e45293af
  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.

The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

Consult the Getting Started with LLVM page for information on building and running LLVM.

For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting in touch

Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.

The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.