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llvm / llvm-project / 69abfd31419d94857b89e1c54bf551f43a19f657
commit69abfd31419d94857b89e1c54bf551f43a19f657[log] [tgz]
authorFabian Ritter <fabian.ritter@amd.com>Tue Oct 22 09:33:21 2024 +0200
committerGitHub <noreply@github.com>Tue Oct 22 09:33:21 2024 +0200
tree1160c055ac8eb8aab146bdf3be5bd0d578a3a117
parentb735c66da9c9ae752b88941d466895a0b696c75e [diff]
[AMDGPU] Allow casts between the Global and Constant Addr Spaces in isValidAddrSpaceCast (#112493)

So far, isValidAddrSpaceCast only allows casts to the flat address
space and between the constant(32) address spaces. It does not allow
casting between the global and constant address spaces, even though they
alias. That affects, e.g., the lowering of memmoves from the constant to
the global address space in LowerMemIntrinsics, since that requires
aliasing address spaces to be castable.

This patch relaxes isValidAddrSpaceCast and allows such casts. It also
includes a memmove test that would crash with the previous
implementation because the memmove IR lowering would not be
applicable for the move from constant AS to global AS.
3 files changed
tree: 1160c055ac8eb8aab146bdf3be5bd0d578a3a117
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. CODE_OF_CONDUCT.md
  34. CONTRIBUTING.md
  35. LICENSE.TXT
  36. pyproject.toml
  37. README.md
  38. 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.