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llvm / llvm-project / b64d7baf9c0d37893ebabbe2539e725eb70b46e9
commitb64d7baf9c0d37893ebabbe2539e725eb70b46e9[log] [tgz]
authorCraig Topper <craig.topper@sifive.com>Tue Jul 15 14:49:54 2025 -0700
committerGitHub <noreply@github.com>Tue Jul 15 14:49:54 2025 -0700
tree89344c8daadb77dd726a388cb6fadab1e3eb8b1b
parentbec508ad1719dfc8f0d85c5343ce44c3d1f326e1 [diff]
[RISCV] Change the InstFormat for Zicbop prefetch instructions to InstFormatOther. (#148934)

The lower 5-bits of the immediate are not part of the address unlike
other InstFormatS instructions.

We use InstFormatS in RISCVRegisterInfo::needsFrameBaseReg and
RISCVRegisterInfo::getFrameIndexInstrOffset which is not aware of this
special encoding. Force the format to InstFormatOther so those functions
will ignore it.

InstFormatS is also used by relocation emission, but I don't believe we
ever emit these instructions with a relocation because of the encoding.
2 files changed
tree: 89344c8daadb77dd726a388cb6fadab1e3eb8b1b
  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

OpenSSF Scorecard OpenSSF Best Practices libc++

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.