[llvm-bugs] [Bug 25333] New: name mangling of lambda default arguments in explicitly instantiated template

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=25333

            Bug ID: 25333
           Summary: name mangling of lambda default arguments in
                    explicitly instantiated template
           Product: clang
           Version: 3.7
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: h.bruintjes at gmail.com
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

The following fails to compile with the error
"error: definition with same mangled name as another definition"
pointing to the lambda of g().

#include <functional>

template<typename T>
class P {
public:
    void f(std::function<void ()> = [] {}) {
    };
    void g(std::function<void ()> = [] {}) {
    }
};

template class P<int>;

It seems related to the explicit instantiation of P<int>, calling both
overloads of f() and g() directly does not trigger the error.

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