--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/Float/BitwiseConversion.java	Mon Jan 26 19:49:26 2009 -0800
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 5037596
+ * @summary Verify bitwise conversion works for non-canonical NaN values
+ * @author Joseph D. Darcy
+ */
+
+import static java.lang.Float.*;
+import static sun.misc.FloatConsts.*;
+
+public class BitwiseConversion {
+    static int testNanCase(int x) {
+        int errors  = 0;
+        // Strip out sign and exponent bits
+        int y = x & SIGNIF_BIT_MASK;
+
+        float values[] = {
+            intBitsToFloat(EXP_BIT_MASK | y),
+            intBitsToFloat(SIGN_BIT_MASK | EXP_BIT_MASK | y)
+        };
+
+        for(float value: values) {
+            if (!isNaN(value)) {
+                throw new RuntimeException("Invalid input " + y +
+                                           "yielded non-NaN" + value);
+            }
+            int converted = floatToIntBits(value);
+            if (converted != 0x7fc00000) {
+                errors++;
+                System.err.format("Non-canoncial NaN bits returned: %x%n",
+                                  converted);
+            }
+        }
+        return errors;
+    }
+
+    public static void main(String... argv) {
+        int errors = 0;
+
+        for (int i = 0; i < SIGNIFICAND_WIDTH-1; i++) {
+            errors += testNanCase(1<<i);
+        }
+
+        if (floatToIntBits(Float.POSITIVE_INFINITY)
+                != 0x7F800000) {
+            errors++;
+            System.err.println("Bad conversion for +infinity.");
+        }
+
+        if (floatToIntBits(Float.NEGATIVE_INFINITY)
+                != 0xFF800000) {
+            errors++;
+            System.err.println("Bad conversion for -infinity.");
+        }
+
+        if (errors > 0)
+            throw new RuntimeException();
+    }
+}