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llvm / llvm-project / c2f0af514beb7618660cf8d145fa9e49fb78869c
commitc2f0af514beb7618660cf8d145fa9e49fb78869c[log] [tgz]
authorAlexander Richardson <alexrichardson@google.com>Wed Jun 11 10:47:17 2025 -0700
committerGitHub <noreply@github.com>Wed Jun 11 10:47:17 2025 -0700
tree9286c2b6b7dabda816628f63a4b74a4cc159ef03
parent66f533e7e34d6f6d0e293a67dd54be9e4c240ddd [diff]
[GISelValueTracking] Add test case for G_PTRTOINT

While we can only reason about the index/address, the G_PTRTOINT
operations returns all representation bits, so we can't assume the
remaining ones are all zeroes. This behaviour was clarified as part of
the discussion in https://discourse.llvm.org/t/clarifiying-the-semantics-of-ptrtoint/83987/54.
The LangRef semantics of ptrtoint being a full representation bitcast
were documented in https://github.com/llvm/llvm-project/pull/139349.

Prior to 77c8d214131e951e3d3a07b45a7436f54988d6f3 we were incorrectly
assuming known zeroes beyond the index size even if the input was
completely unknown. This commit adds a test case for G_PTRTOINT which
was omitted from that change.

See https://github.com/llvm/llvm-project/issues/139598

Reviewed By: arsenm

Pull Request: https://github.com/llvm/llvm-project/pull/139608
1 file changed
tree: 9286c2b6b7dabda816628f63a4b74a4cc159ef03
  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.

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