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llvm / llvm-project / 37b4df434d2cf82feb3672eeeb469e54ee8f7ff2
commit37b4df434d2cf82feb3672eeeb469e54ee8f7ff2[log] [tgz]
authorYounan Zhang <zyn7109@gmail.com>Fri Nov 08 14:04:57 2024 +0800
committerGitHub <noreply@github.com>Fri Nov 08 14:04:57 2024 +0800
tree97277233c0829762f63a2b5ab763c0dc85c8edca
parent2f40e3e713efb550c05ff5f911ab4ce2e4a8dddf [diff]
[Clang] Remove the wrong assumption when rebuilding SizeOfPackExprs for constraint normalization (#115120)

In 463a4f150, we assumed that all the template argument packs are of
size 1 when normalizing a constraint expression because I mistakenly
thought those packs were obtained from their injected template
parameters. This was wrong because we might be checking constraints when
instantiating a friend declaration within a class template
specialization, where the parent class template is specialized with
non-dependent template arguments.

In that sense, we shouldn't assume any pack size nor expand anything in
such a scenario. Moreover, there are no intermediate (substituted but
unexpanded) AST nodes for template template parameters, so we have to
special-case their transformations by looking into the instantiation
scope instead of extracting anything from template arguments.

Fixes #115098
3 files changed
tree: 97277233c0829762f63a2b5ab763c0dc85c8edca
  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.

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