1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/elemental_non_intrinsic_dummy_1.f90 b/gcc/testsuite/gfortran.dg/elemental_non_intrinsic_dummy_1.f90
new file mode 100644
index 000000000..207d76a4b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/elemental_non_intrinsic_dummy_1.f90
@@ -0,0 +1,23 @@
+! { dg-do compile }
+! Tests the fix for 20871, in which elemental non-intrinsic procedures were
+! permitted to be dummy arguments.
+!
+! Contributed by Joost VandeVondele  <jv244@cam.ac.uk>
+!
+MODULE TT
+CONTAINS
+   ELEMENTAL INTEGER FUNCTION two(N)
+     INTEGER, INTENT(IN) :: N
+     two=2**N
+   END FUNCTION
+END MODULE
+USE TT
+ INTEGER, EXTERNAL  :: SUB
+ write(6,*) SUB(two)    ! { dg-error "not allowed as an actual argument " }
+END
+INTEGER FUNCTION SUB(XX)
+  INTEGER :: XX
+  SUB=XX()
+END
+
+! { dg-final { cleanup-modules "TT" } }