[all-commits] [llvm/llvm-project] de528d: [Clang] Handle default template arguments for alia...

[Younan Zhang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: de528d689f3a2305c051528993fe30295f2a0cd9
      https://github.com/llvm/llvm-project/commit/de528d689f3a2305c051528993fe30295f2a0cd9
  Author: Younan Zhang <zyn7109 at gmail.com>
  Date:   2025-04-17 (Thu, 17 Apr 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaTemplateDeductionGuide.cpp
    M clang/test/SemaTemplate/deduction-guide.cpp

  Log Message:
  -----------
  [Clang] Handle default template arguments for alias CTAD guides (#134807)

It's possible that some deduced template arguments come from default
arguments, not just from the return type. So we need to recursively
visit the default arguments of the parameter if it's referenced, thereby
the template parameter referenced by the defualt arguments could come
along to the synthesized deduction guide.

Fixes https://github.com/llvm/llvm-project/issues/134471



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