1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/intrinsic_3.f90 b/gcc/testsuite/gfortran.dg/intrinsic_3.f90
new file mode 100644
index 00000000000..fcd40e94bbb
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+++ b/gcc/testsuite/gfortran.dg/intrinsic_3.f90
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+! { dg-do compile }
+! { dg-options "-std=f95" }
+!
+! PR 39876: module procedure name that collides with the GNU intrinsic
+!
+! Contributed by Alexei Matveev <alexei.matveev+gcc@gmail.com>
+
+module p                           
+  implicit none                                                                 
+
+  contains
+
+    subroutine test()
+      implicit none
+      print *, avg(erfc)
+    end subroutine test
+
+    function avg(f)
+      implicit none
+      double precision :: avg
+      interface
+        double precision function f(x)
+          implicit none
+          double precision, intent(in) :: x
+        end function f
+      end interface
+      avg = ( f(1.0D0) + f(2.0D0) ) / 2
+    end function avg
+
+    function erfc(x)
+      implicit none
+      double precision, intent(in) :: x
+      double precision             :: erfc
+      erfc = x
+    end function erfc
+
+end module p
+
+! { dg-final { cleanup-modules "p" } }
+