1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/ambiguous_specific_1.f90 b/gcc/testsuite/gfortran.dg/ambiguous_specific_1.f90
new file mode 100644
index 000000000..b5292b2dd
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/ambiguous_specific_1.f90
@@ -0,0 +1,38 @@
+! { dg-do compile }
+! Checks the fix for PR33542, in which the ambiguity in the specific
+! interfaces of foo was missed.
+!
+! Contributed by Tobias Burnus <burnus@gcc.gnu.org>
+!
+MODULE M1
+   INTERFACE FOO
+     MODULE PROCEDURE FOO
+   END INTERFACE
+CONTAINS
+   SUBROUTINE FOO(I)
+     INTEGER, INTENT(IN) :: I
+     WRITE(*,*) 'INTEGER'
+   END SUBROUTINE FOO
+END MODULE M1
+
+MODULE M2
+   INTERFACE FOO
+     MODULE PROCEDURE FOO
+   END INTERFACE
+CONTAINS
+   SUBROUTINE FOO(R)
+     REAL, INTENT(IN) :: R
+     WRITE(*,*) 'REAL'
+   END SUBROUTINE FOO
+END MODULE M2
+
+PROGRAM P
+   USE M1
+   USE M2
+   implicit none
+   external bar
+   CALL FOO(10)
+   CALL FOO(10.)
+   call bar (foo)  ! { dg-error "is ambiguous" }
+END PROGRAM P
+! { dg-final { cleanup-modules "m1 m2" } }