[all-commits] [llvm/llvm-project] b24650: Reapply "[Clang][Sema] Always use latest redeclara...

[Krystian Stasiowski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b24650e814e55d90acfc40acf045456c98f32b9c
      https://github.com/llvm/llvm-project/commit/b24650e814e55d90acfc40acf045456c98f32b9c
  Author: Krystian Stasiowski <sdkrystian at gmail.com>
  Date:   2024-11-01 (Fri, 01 Nov 2024)

  Changed paths:
    M clang/include/clang/AST/DeclTemplate.h
    M clang/lib/AST/ASTImporter.cpp
    M clang/lib/AST/Decl.cpp
    M clang/lib/AST/DeclCXX.cpp
    M clang/lib/AST/DeclTemplate.cpp
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaInit.cpp
    M clang/lib/Sema/SemaTemplateInstantiate.cpp
    M clang/test/AST/ast-dump-decl.cpp
    A clang/test/ASTMerge/class-template-spec/Inputs/class-template-spec.cpp
    A clang/test/ASTMerge/class-template-spec/test.cpp
    M clang/test/CXX/temp/temp.spec/temp.expl.spec/p7.cpp

  Log Message:
  -----------
  Reapply "[Clang][Sema] Always use latest redeclaration of primary template" (#114569)

This patch reapplies #114258, fixing an infinite recursion bug in
`ASTImporter` that occurs when importing the primary template of a class
template specialization when the latest redeclaration of that template
is a friend declaration in the primary template.



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