[PATCH] D136554: Implement CWG2631

[David Blaikie via Phabricator via cfe-commits]

dblaikie added subscribers: rsmith, dblaikie.
dblaikie added a comment.

fwiw, @rsmith came up with a crasher reproducer from this patch here:

  template<typename T> struct F {
      template<typename U> F(const U&) {}
  };
  
  struct A {
      static constexpr auto x = [] {};
      F<int> f = x;
  };
  
  void f(A a = A()) { }
  
  int main() {
      f();

This was still failing at52ffc728181bc2d3c889f7f80c252c3433b9e7b6 immediately 
prior to the revert.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136554/new/

https://reviews.llvm.org/D136554

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