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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/105138] [7,8,9,10,11,12,F95] Bogus error when function
 name does not shadow an intrinsic when RESULT clause is used
Date: Sat, 02 Apr 2022 16:49:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105138

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |kargl at gcc dot gnu.org
   Target Milestone|---                         |13.0
   Last reconfirmed|                            |2022-04-02

--- Comment #3 from kargl at gcc dot gnu.org ---
F2018, 15.6.2.2, page 319

If RESULT appears, the name of the function result of the
function is result-name and all occurrences of the function
name in execution-part statements in its scope refer to the
function itself.

If I change COMPLEX to REAL in the first example, I get



% gfcx -c -fdump-parse-tree

Namespace: A-H: (REAL 4) I-N: (INTEGER 4) O-Z: (REAL 4)
procedure name =3D log_gamma
  symtree: 'log_gamma'   || symbol: 'log_gamma'=20=20=20=20
    type spec : (REAL 4)
    attributes: (PROCEDURE INTRINSIC-PROC  FUNCTION RECURSIVE)
    result: res
    Formal arglist: z
  symtree: 'res'         || symbol: 'res'=20=20=20=20=20=20=20=20=20=20
    type spec : (REAL 4)
    attributes: (VARIABLE  RESULT)
  symtree: 'z'           || symbol: 'z'=20=20=20=20=20=20=20=20=20=20=20=20
    type spec : (REAL 4)
    attributes: (VARIABLE  DUMMY(IN))

  code:
  ASSIGN log_gamma:res __lgamma_4[[((log_gamma:z))]]



The attributes for log_gamma includes INTRINSIC-PROC, which is
clearly wrong.=