[all-commits] [llvm/llvm-project] 63ea5a: [clang] Invalidate the alias template decl if it h...

[Haojian Wu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 63ea5a4088ff73a47cd3411fad3b42c92a3c64f0
      https://github.com/llvm/llvm-project/commit/63ea5a4088ff73a47cd3411fad3b42c92a3c64f0
  Author: Haojian Wu <hokein.wu at gmail.com>
  Date:   2024-03-28 (Thu, 28 Mar 2024)

  Changed paths:
    M clang/lib/Sema/SemaDeclCXX.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    M clang/test/AST/ast-dump-invalid.cpp
    M clang/test/SemaCXX/cxx20-ctad-type-alias.cpp

  Log Message:
  -----------
  [clang] Invalidate the alias template decl if it has multiple written template parameter lists. (#85413)

Fixes #85406.

- Set the invalid bit for alias template decl where it has multiple
written template parameter lists (as the AST node is ill-formed)
- don't perform CTAD for invalid alias template decls



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