[Bug fortran/50525] gfortran should not allow early reference to entry dummy argument (r178939)

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50525

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |accepts-invalid
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-09-27 07:56:20 UTC ---
NAG has:

Error: test.f90, line 2: Dummy arg X used before first occurrence in an
argument list


And ifort has:

h4j.f90(2): error #6482: An ENTRY dummy argument is referenced in an executable
statement before it appears in any ENTRY statement.   [X]
      f(y)=x ! this is wrong
-----------^


The easiest fix is probably to check whether the symbol is already defined when
parsing "entry e(x)" (or adding attr.dummy).