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    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Infinite recursion during template instantiation"
   href="https://llvm.org/bugs/show_bug.cgi?id=27173">27173</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Infinite recursion during template instantiation
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Frontend
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>rtrieu@google.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>$ cat bind.cc
template <typename _Tp> _Tp declval();

template <typename _Signature>
struct _Bind;

template <typename _Functor, typename T>
struct _Bind<_Functor(T)> {
  template <typename Arg, typename _Result = decltype(
                              declval<_Functor>()(declval<volatile T>()))>
  void operator()(Arg&& arg) {}
};

template <typename _Func, typename _Arg>
inline _Bind<_Func(_Arg)>
bind(_Func&& __f, _Arg&& __args) {}


struct A {
  template <typename T> A(T t);
};

template <typename T>
struct B {
  B(T&& arg);
};

template <typename T>
B<T> get_B();

void g(A a) {}

void test() {
  bind(g, get_B<A>());
}
$ clang -cc1 -std=c++11 bind.cc
Segmentation fault (core dumped)

>From the backtrace, these 4 functions are repeated:
clang::Sema::PerformCopyInitialization
clang::Sema::GatherArgumentsForCall
clang::Sema::CompleteConstructorCall
clang::InitializationSequence::Perform</pre>
        </div>
      </p>
      <hr>
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