[llvm-bugs] [Bug 41040] New: ICE in infinite instantiation of recursive template member function

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=41040

            Bug ID: 41040
           Summary: ICE in infinite instantiation of recursive template
                    member function
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: andrey.a.davydov at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

struct CallMe  {
    template <typename Arg>
    auto operator()(Arg arg)
        -> decltype((*this)(arg));
        // The issue is that Clang considers class `CallMe`
        // as callable in this point, if replace `(*this)(arg)`
        // to explicit function call `this->operator()(arg)`
        // the issue will be resolved.
};

void test(CallMe f) {
    f(239);
}

https://godbolt.org/z/QghBya

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