[Bug c++/57979] G++ accepts constant expression defined using floating point non-constexpr glvalue

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57979

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jason at gcc dot gnu.org

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
This was introduced by the fix for bug 21089; decay_conversion and
convert_like_real shouldn't be pulling values out of variables that are not
decl_const_var_p.  The trick is fixing that without breaking the static
initialization optimization that 21089 is about.  I guess allowing
maybe_constant_init to be more aggressive than *_constant_value is the way to
approach this.