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llvm / llvm-project / 523e249a6aed29fd2c36000c87838eface7324b4
commit523e249a6aed29fd2c36000c87838eface7324b4[log] [tgz]
authorChaitanya <Krishna.Sankisa@amd.com>Wed Apr 09 11:55:55 2025 +0530
committerGitHub <noreply@github.com>Wed Apr 09 11:55:55 2025 +0530
tree8eb1c5c1c4de43f117bc5ee4bd910e28fbe313f6
parente348173bef7182c7cc609d0f000452d3acf4b65c [diff]
[AMDGPU] Lower LDS in functions without sanitize_address in amdgpu-sw-lower-lds. (#131147)

Background:
"amdgpu-sw-lower-lds" pass lowers LDS accesses based on
"sanitize_address" attribute being tagged to kernel or non-kernels.
"amdgpu-sw-lower-lds" pass ideally should either lower all LDS accesses
or should not lower any based on if asan is enabled.

Issue:
But there has been cases when instrumented and non instrumented bitcodes
are linked and this is leading to few LDS being lowered correctly while
others are not. This typically leads to below error in the subsequent
pass.
"Module cannot mix absolute and non-absolute LDS GVs"

Fix:
This patch fixes this issue, by checking if any kernels in module are
tagged with "sanitize_address" attribute and then lowers all the LDS
accesses in all other kernels and non-kernels even though they do not
have "sanitize_address" attribute.
5 files changed
tree: 8eb1c5c1c4de43f117bc5ee4bd910e28fbe313f6
  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-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

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