[all-commits] [llvm/llvm-project] 2ff731: [clang] Track function template instantiation from...

[Matheus Izvekov via All-commits]

  Branch: refs/heads/users/mizvekov/clang-fix-GH55509
  Home:   https://github.com/llvm/llvm-project
  Commit: 2ff73103c3f9cd61d1d829393d940fd95a751932
      https://github.com/llvm/llvm-project/commit/2ff73103c3f9cd61d1d829393d940fd95a751932
  Author: Matheus Izvekov <mizvekov at gmail.com>
  Date:   2025-01-30 (Thu, 30 Jan 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/AST/Decl.h
    M clang/include/clang/AST/DeclBase.h
    M clang/include/clang/AST/DeclTemplate.h
    M clang/lib/AST/Decl.cpp
    M clang/lib/Sema/SemaTemplateDeduction.cpp
    M clang/lib/Sema/SemaTemplateInstantiate.cpp
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/lib/Serialization/ASTReaderDecl.cpp
    M clang/lib/Serialization/ASTWriterDecl.cpp
    A clang/test/SemaTemplate/GH55509.cpp

  Log Message:
  -----------
  [clang] Track function template instantiation from definition

This fixes instantiation of definition for friend function templates,
when the declaration found and the one containing the definition
have different template contexts.

In these cases, the the function declaration corresponding to the
definition is not available; it may not even be instantiated at all.

So this patch adds a bit which tracks which function template
declaration was instantiated from the member template.
It's used to find which primary template serves as a context
for the purpose of obtainining the template arguments needed
to instantiate the definition.

Fixes #55509


  Commit: 30b035933ec601e0fdff07500813ca69dabb6aa9
      https://github.com/llvm/llvm-project/commit/30b035933ec601e0fdff07500813ca69dabb6aa9
  Author: Matheus Izvekov <mizvekov at gmail.com>
  Date:   2025-01-31 (Fri, 31 Jan 2025)

  Changed paths:
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/test/SemaTemplate/GH55509.cpp

  Log Message:
  -----------
  fixup


Compare: https://github.com/llvm/llvm-project/compare/2ff73103c3f9%5E...30b035933ec6

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