[gcc(refs/vendors/ARM/heads/arm-perf-staging)] Added test case from PR 94737.

[Tamar Christina]

https://gcc.gnu.org/g:870923cd48e1e715120ff68425437e5b346283a1

commit 870923cd48e1e715120ff68425437e5b346283a1
Author: Thomas Koenig <tkoenig@gcc.gnu.org>
Date:   Sun Apr 26 14:57:16 2020 +0200

    Added test case from PR 94737.
    
    2020-04-26  Thomas Koenig  <tkoenig@gcc.gnu.org>
    
            PR fortran/94737
            * gfortran.dg/binding_label_tests_34.f90: New test case.

Diff:
---
 gcc/testsuite/ChangeLog                            |  5 +++++
 .../gfortran.dg/binding_label_tests_34.f90         | 25 ++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cce59449cb0..c4f5f83552e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-04-26  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/94737
+	* gfortran.dg/binding_label_tests_34.f90: New test case.
+
 2020-04-25  David Edelsohn  <dje.gcc@gmail.com>
 
 	* g++.dg/debug/dwarf2/pr61433.C: Unfail AIX.
diff --git a/gcc/testsuite/gfortran.dg/binding_label_tests_34.f90 b/gcc/testsuite/gfortran.dg/binding_label_tests_34.f90
new file mode 100644
index 00000000000..f4f18626ed8
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/binding_label_tests_34.f90
@@ -0,0 +1,25 @@
+! { dg-do compile }
+! PR 94737 - global symbols are case-insensitive; an error should be
+! reported if they match (see F2018, 9.2, paragraph 2).  Original
+! test case by Lee Busby.
+
+module foo
+
+interface
+function func1(ii) result (k) bind(c, name="c_func")
+  integer :: ii
+  integer :: k
+end function func1
+subroutine sub1(ii,jj) bind(c, name="c_Func") ! { dg-error "Global binding name" }
+  integer :: ii,jj
+end subroutine sub1
+end interface
+
+contains
+
+function func2(ii) result (k) 
+  integer :: ii
+  integer :: k
+  k = func1(ii) ! { dg-error "Global binding name" }
+end function func2
+end module foo