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llvm / llvm-project / 8e4dd21e6362ca161b7fda4fe7c5fa20f72ffab2
commit8e4dd21e6362ca161b7fda4fe7c5fa20f72ffab2[log] [tgz]
authorFinn Plummer <canadienfinn@gmail.com>Wed Apr 30 09:41:08 2025 -0700
committerGitHub <noreply@github.com>Wed Apr 30 09:41:08 2025 -0700
tree82f4ac3cae695ae38246a692542cfbe64ede5659
parentea3959e841367ef691472ccf78ec25252dbfe288 [diff]
[HLSL][RootSignature] Add lexing support for floating points (#137720)

- this takes care to add support to match the [behaviour of
DXC](https://github.com/microsoft/DirectXShaderCompiler/blob/34b6d0f91e6afd523bdc574836093f021713cce7/tools/clang/lib/Parse/HLSLRootSignature.cpp#L74)
acceptable floating point integers

Namely:
- Allow for specifying the decimal '.'
- Allow for specifying exponents with 'e' or 'E' and allow for 'f' to
denote an otherwise interpreted integer as a float

This pr is simply responsible of creating a token that could be
interpeted as a floating point integer by `NumericLiteralParser`. As
such, we are not required to validate that the special characters only
occur once and that 'f' is only at the end of the string. These will be
validated when invoking `NumericLiteralParser` during parsing.

Resolves #126565
3 files changed
tree: 82f4ac3cae695ae38246a692542cfbe64ede5659
  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.