[PATCH, testsuite, fortran] fix invalid testcases (missing MOLD argument to NULL)

[Harald Anlauf <anlauf@gmx.de>]

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Dear all,

testcases assumed_rank_8.f90 and assumed_rank_10.f90 are invalid:
NULL() is passed without MOLD to an assumed-rank dummy argument.

This is detected by NAG, but not yet by gfortran (see pr104819).
gfortran even ignores the MOLD argument; the dump-tree is identical
if MOLD is there or not.

Now these testcases are { dg-do run }.  Therefore I would like to
fix these testcases, independent of the work on fixing pr104819.

Comments?

Thanks,
Harald


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From cbb0c61f9d6f06667666a33da6e6ce3213a92248 Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Wed, 22 Nov 2023 21:45:46 +0100
Subject: [PATCH] testsuite: fortran: fix invalid testcases (missing MOLD
 argument to NULL)

The Fortran standard requires that NULL() passed to an assumed-rank
dummy argument has a MOLD argument.

gcc/testsuite/ChangeLog:

	PR fortran/104819
	* gfortran.dg/assumed_rank_10.f90: Add MOLD argument to NULL().
	* gfortran.dg/assumed_rank_8.f90: Likewise.
---
 gcc/testsuite/gfortran.dg/assumed_rank_10.f90 | 6 +++---
 gcc/testsuite/gfortran.dg/assumed_rank_8.f90  | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/gcc/testsuite/gfortran.dg/assumed_rank_10.f90 b/gcc/testsuite/gfortran.dg/assumed_rank_10.f90
index 6a3cc94483e..f22d43ab955 100644
--- a/gcc/testsuite/gfortran.dg/assumed_rank_10.f90
+++ b/gcc/testsuite/gfortran.dg/assumed_rank_10.f90
@@ -50,9 +50,9 @@ program test

  is_present = .false.

- call fpa(null(), null()) ! No copy back
- call fpi(null(), null()) ! No copy back
- call fno(null(), null()) ! No copy back
+ call fpa(null(iip), null(jjp)) ! No copy back
+ call fpi(null(iip), null(jjp)) ! No copy back
+ call fno(null(iip), null(jjp)) ! No copy back

  call fno() ! No copy back

diff --git a/gcc/testsuite/gfortran.dg/assumed_rank_8.f90 b/gcc/testsuite/gfortran.dg/assumed_rank_8.f90
index 5873296a7a5..34ff42c0be2 100644
--- a/gcc/testsuite/gfortran.dg/assumed_rank_8.f90
+++ b/gcc/testsuite/gfortran.dg/assumed_rank_8.f90
@@ -22,13 +22,13 @@ program main
   call f (ii)
   call f (489)
   call f ()
-  call f (null())
+  call f (null(kk))
   call f (kk)
   if (j /= 2) STOP 1

   j = 0
   nullify (ll)
-  call g (null())
+  call g (null(ll))
   call g (ll)
   call g (ii)
   if (j /= 1) STOP 2
--
2.35.3