[llvm-bugs] [Bug 48687] New: Compiler frontend segfault on explicit template instantiation

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48687

            Bug ID: 48687
           Summary: Compiler frontend segfault on explicit template
                    instantiation
           Product: clang
           Version: 11.0
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: C++17
          Assignee: unassignedclangbugs at nondot.org
          Reporter: plasmacel at gmail.com
                CC: blitzrakete at gmail.com, erik.pilkington at gmail.com,
                    llvm-bugs at lists.llvm.org, richard-llvm at metafoo.co.uk

The following minimal example is enough to reproduce the problem on clang 11.0,
using the clang-cl interface on x86_64-pc-windows-msvc, regardless the
optimization level.

// A.h

template <typename T>
class A
{
public:

    T value;

    static constexpr auto address = &A<T>::value;
};

extern template class A<float>;

// A.cpp

#include "A.h"

template class A<float>;

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