1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/f2c_9.f90 b/gcc/testsuite/gfortran.dg/f2c_9.f90
new file mode 100644
index 000000000..59c3fbe8b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/f2c_9.f90
@@ -0,0 +1,52 @@
+! { dg-do run }
+! { dg-options "-ff2c" }
+! PR 34868
+
+function f(a) result(res)
+  implicit none
+  real(8), intent(in) :: a(:)
+  complex(8) :: res
+
+  res = cmplx(sum(a),product(a),8)
+end function f
+
+function g(a)
+  implicit none
+  real(8), intent(in) :: a(:)
+  complex(8) :: g
+
+  g = cmplx(sum(a),product(a),8)
+end function g
+
+program test
+  real(8) :: a(1,5)
+  complex(8) :: c
+  integer :: i
+
+  interface
+    complex(8) function f(a)
+      real(8), intent(in) :: a(:)
+    end function f
+    function g(a) result(res)
+      real(8), intent(in) :: a(:)
+      complex(8) :: res
+    end function g
+  end interface
+
+  do i = 1, 5
+    a(1,i) = sqrt(real(i,kind(a)))
+  end do
+
+  c = f(a(1,:))
+  call check (real(c), sum(a))
+  call check (imag(c), product(a))
+
+  c = g(a(1,:))
+  call check (real(c), sum(a))
+  call check (imag(c), product(a))
+contains
+  subroutine check (a, b)
+    real(8), intent(in) :: a, b
+    if (abs(a - b) > 1.e-10_8) call abort
+  end subroutine check
+end program test