diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite
index ac1c4d6cfab..4d7b11dec07 100644
--- a/gcc/ChangeLog.graphite
+++ b/gcc/ChangeLog.graphite
@@ -1,3 +1,8 @@
+2009-12-17  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR middle-end/42186
+	* testsuite/gfortran.dg/graphite/pr42186.f90: New.
+
 2009-12-17  Sebastian Pop  <sebastian.pop@amd.com>
 
 	PR middle-end/42205
diff --git a/gcc/testsuite/gfortran.dg/graphite/pr42186.f90 b/gcc/testsuite/gfortran.dg/graphite/pr42186.f90
new file mode 100644
index 00000000000..9e488f4f189
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/graphite/pr42186.f90
@@ -0,0 +1,14 @@
+! { dg-options "-fgraphite-identity -g -O3 -ffast-math" }
+MODULE erf_fn
+CONTAINS
+  SUBROUTINE CALERF(ARG,RESULT,JINT)
+    DIMENSION A(5),B(4),C(9),D(8),P(6),Q(5)
+    IF (Y <= THRESH) THEN
+       DO I = 1, 3
+          XNUM = (XNUM + A(I)) * YSQ
+          XDEN = (XDEN + B(I)) * YSQ
+       END DO
+       RESULT = X * (XNUM + A(4)) / (XDEN + B(4))
+    END IF
+  END SUBROUTINE CALERF
+END MODULE erf_fn