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1 files changed, 36 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/userdef_operator_1.f90 b/gcc/testsuite/gfortran.dg/userdef_operator_1.f90
new file mode 100644
index 000000000..e8af3720a
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/userdef_operator_1.f90
@@ -0,0 +1,36 @@
+! { dg-do compile }
+! Testcase from PR 25396: User defined operators returning arrays.
+module geometry
+
+  implicit none
+
+  interface operator(.cross.)
+     module procedure cross
+  end interface
+
+contains
+
+    ! Cross product between two 3d vectors.
+    pure function cross(a, b)
+      real, dimension(3), intent(in) :: a,b
+      real, dimension(3) :: cross
+
+     cross = (/ a(2) * b(3) - a(3) * b(2), &
+           a(3) * b(1) - a(1) * b(3), &
+           a(1) * b(2) - a(2) * b(1) /)
+    end function cross
+
+end module geometry
+
+program opshape
+  use geometry
+
+  implicit none
+
+  real :: t(3,3), a
+
+  a = dot_product (t(:,1), t(:,2) .cross. t(:,3))
+
+end program opshape
+
+! { dg-final { cleanup-modules "geometry" } }