--- /dev/null	2015-03-30 19:43:05.000000000 -0700
+++ new/test/compiler/loopopts/superword/SumRed_Double.java	2015-03-30 19:43:05.000000000 -0700
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 8074981
+ * @summary Add C2 x86 Superword support for scalar sum reduction optimizations : double test
+ *
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 SumRed_Double
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 SumRed_Double
+ *
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 SumRed_Double
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 SumRed_Double
+ *
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 SumRed_Double
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 SumRed_Double
+ *
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 SumRed_Double
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 SumRed_Double
+ */
+
+public class SumRed_Double
+{
+  public static void main(String[] args) throws Exception {
+    double[] a = new double[256*1024];
+    double[] b = new double[256*1024];
+    double[] c = new double[256*1024];
+    double[] d = new double[256*1024];
+    sumReductionInit(a,b,c);
+    double total = 0;
+    double valid = 3.602859086516129E20;
+    for(int j = 0; j < 20000; j++) {
+      total = sumReductionImplement(a,b,c,d,total);
+    }
+    if(total == valid) {
+      System.out.println("Success");
+    } else {
+      System.out.println("Invalid sum of elements variable in total: " + total);
+      System.out.println("Expected value = " + valid);
+      throw new Exception("Failed");
+    }
+  }
+
+  public static void sumReductionInit(
+    double[] a,
+    double[] b,
+    double[] c)
+  {
+    for(int j = 0; j < 1; j++)
+    {
+      for(int i = 0; i < a.length; i++)
+      {
+        a[i] = i * 1 + j;
+        b[i] = i * 1 - j;
+        c[i] = i + j;
+      }
+    }
+  }
+
+  public static double sumReductionImplement(
+    double[] a,
+    double[] b,
+    double[] c,
+    double[] d,
+    double total)
+  {
+    for(int i = 0; i < a.length; i++)
+    {
+      d[i]= (a[i] * b[i]) + (a[i] * c[i]) + (b[i] * c[i]);
+      total += d[i];
+    }
+    return total;
+  }
+
+}