[llvm-bugs] [Bug 30712] clang ignores constexpr for static members of objects with reference template type

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30712

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|---                         |INVALID

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
Clang is correct. In order for a call to a constexpr function to be evaluated
at compile time, it must be possible to (symbolically) evaluate all of its
arguments. In the failing case, it is not possible to evaluate the value of the
implicit 'this' parameter. In the successful case, it evaluates symbolically to
the address of the caller's parameter.

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