[Bug c++/70552] __builtin_constant_p fails to reflect the constness of constexpr calls

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70552

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
             Blocks|                            |55004
      Known to fail|                            |4.9.3, 5.3.0, 6.0

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
The test case aborts at runtime with all versions that support constexpr,
though with 5.1 and prior it also fails the second static_assert (i.e., the one
involving __builtin_constant_p), and optimization has no effect on it.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004
[Bug 55004] [meta-bug] constexpr issues