1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/pure_byref_3.f90 b/gcc/testsuite/gfortran.dg/pure_byref_3.f90
new file mode 100644
index 000000000..a9d860bf0
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pure_byref_3.f90
@@ -0,0 +1,35 @@
+! { dg-do run }
+! PR 22607: External/module pure return-by-reference functions
+
+pure function hoj()
+    integer :: hoj(3)
+    hoj = (/1, 2, 3/)
+end function hoj
+
+module huj_mod
+contains
+    pure function huj()
+        integer :: huj(3)
+        huj = (/1, 2, 3/)
+    end function huj
+end module huj_mod
+
+program pure_byref_3
+    use huj_mod
+    implicit none
+
+    interface
+        pure function hoj()
+            integer :: hoj(3)
+        end function hoj
+    end interface
+    integer :: a(3)
+
+    a = huj()
+    if (.not. all(a == (/1, 2, 3/))) call abort()
+
+    a = hoj()
+    if (.not. all(a == (/1, 2, 3/))) call abort()
+end program pure_byref_3
+
+! { dg-final { cleanup-modules "huj_mod" } }