[sanitizer] Add plumbing for -fsanitize-annotate-debug-info and partly replace '-mllvm -array-bounds-pseudofn' (#138577)

@fmayer introduced '-mllvm -array-bounds-pseudofn'
(https://github.com/llvm/llvm-project/pull/128977/) to make it easier to
see why crashes occurred, and to estimate with a profiler the cycles
spent on these array-bounds checks. This functionality could be usefully
generalized to other checks in future work.

This patch adds the plumbing for -fsanitize-annotate-debug-info, and
connects it to the existing array-bounds-pseudo-fn functionality i.e.,
-fsanitize-annotate-debug-info=array-bounds can be used as a replacement
for '-mllvm -array-bounds-pseudofn', though we do not yet delete the
latter.

Note: we replaced '-mllvm -array-bounds-pseudofn' in
clang/test/CodeGen/bounds-checking-debuginfo.c, because adding test
cases would modify the line numbers in the test assertions, and
therefore obscure that the test output is the same between '-mllvm
-array-bounds-pseudofn' and -fsanitize-annotate-debug-info=array-bounds.
8 files changed
tree: 1ce19e38bc9542c1808884f3610dbf44890b6b2d
  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

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