1 files changed, 73 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/f2c_1.f90 b/gcc/testsuite/gfortran.dg/f2c_1.f90
new file mode 100644
index 000000000..9f45d05bf
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/f2c_1.f90
@@ -0,0 +1,73 @@
+! Make sure the f2c calling conventions work
+! { dg-do run }
+! { dg-options "-ff2c" }
+
+function f(x)
+  f = x
+end function f
+
+complex function c(a,b)
+  c = cmplx (a,b)
+end function c
+
+double complex function d(e,f)
+  double precision e, f
+  d = cmplx (e, f, kind(d))
+end function d
+
+subroutine test_with_interface()
+  interface
+     real function f(x)
+       real::x
+     end function f
+  end interface
+
+  interface
+     complex function c(a,b)
+       real::a,b
+     end function c
+  end interface
+
+  interface
+     double complex function d(e,f)
+       double precision::e,f
+     end function d
+  end interface
+  
+  double precision z, w
+
+  x = 8.625
+  if (x /= f(x)) call abort ()
+  y = f(x)
+  if (x /= y) call abort ()
+
+  a = 1.
+  b = -1.
+  if (c(a,b) /= cmplx(a,b)) call abort ()
+
+  z = 1.
+  w = -1.
+  if (d(z,w) /= cmplx(z,w, kind(z))) call abort ()
+end subroutine test_with_interface
+
+external f, c, d
+real f
+complex c
+double complex d
+double precision z, w
+
+x = 8.625
+if (x /= f(x)) call abort ()
+y = f(x)
+if (x /= y) call abort ()
+
+a = 1.
+b = -1.
+if (c(a,b) /= cmplx(a,b)) call abort ()
+
+z = 1.
+w = -1.
+if (d(z,w) /= cmplx(z,w, kind(z))) call abort ()
+
+call test_with_interface ()
+end