[Bug fortran/86116] [6/7/8/9 Regression] Ambiguous generic interface not recognised

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86116

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.8.5
           Keywords|                            |accepts-invalid
   Last reconfirmed|                            |2018-06-13
     Ever confirmed|0                           |1
            Summary|Ambiguous generic interface |[6/7/8/9 Regression]
                   |not recognised              |Ambiguous generic interface
                   |                            |not recognised
   Target Milestone|---                         |6.5
      Known to fail|                            |4.9.3, 5.5.0, 6.4.0, 7.3.0,
                   |                            |8.1.0, 9.0

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed from 4.9.3 up to trunk (9.0), compiling the test with 4.8.5 gives

pr86116.f90:11.25:

      module procedure s2
                         1
Error: Ambiguous interfaces 's2' and 's1' in generic interface 'sub' at (1)