[Bug fortran/82796] [6/7/8 Regression] Private+equivalence in used module breaks compilation of pure function

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82796

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-11-01
      Known to work|                            |4.9.3
            Summary|Private+equivalence in used |[6/7/8 Regression]
                   |module breaks compilation   |Private+equivalence in used
                   |of pure function            |module breaks compilation
                   |                            |of pure function
     Ever confirmed|0                           |1
      Known to fail|                            |5.5.0, 6.4.0, 7.2.0, 8.0

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The behavior changed between revisions r224148 (2015-06-05, OK) and r224160
(2015-06-05, error) likely r224159.

Note that the error appeared only once up to revision r227398 + two patches
(2015-09-02).