[Bug ipa/60854] [4.9/4.10 Regression] inline constructor of extern template

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60854

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-04-16
                 CC|                            |hubicka at gcc dot gnu.org
          Component|c++                         |ipa
   Target Milestone|---                         |4.9.1
            Summary|inline constructor of       |[4.9/4.10 Regression]
                   |extern template             |inline constructor of
                   |                            |extern template
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Not sure how the C++ 'extern template' explicit instantiation interacts with
the GCC always-inline extension.  But with always-inline it is an _error_
to have a function not inlined and thus we omit the body of the function.

Somehow early inlining doesn't see that MyClass::MyClass is always-inline,
this works in 4.8 and the constructor is always-inlined.

Honza?