--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/floatingpoint/NaNTest.java Wed Aug 19 08:55:18 2015 +0200
@@ -0,0 +1,69 @@
+/*
+ * 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 8076373
+ * @summary Verify if signaling NaNs are preserved.
+ * @run main NaNTest
+ */
+public class NaNTest {
+ static void testFloat() {
+ int originalValue = 0x7f800001;
+ int readBackValue = Float.floatToRawIntBits(Float.intBitsToFloat(originalValue));
+ if (originalValue != readBackValue) {
+ String errorMessage = String.format("Original and read back float values mismatch\n0x%X 0x%X\n",
+ originalValue,
+ readBackValue);
+ throw new RuntimeException(errorMessage);
+ } else {
+ System.out.printf("Written and read back float values match\n0x%X 0x%X\n",
+ originalValue,
+ readBackValue);
+ }
+ }
+
+ static void testDouble() {
+ long originalValue = 0xFFF0000000000001L;
+ long readBackValue = Double.doubleToRawLongBits(Double.longBitsToDouble(originalValue));
+ if (originalValue != readBackValue) {
+ String errorMessage = String.format("Original and read back double values mismatch\n0x%X 0x%X\n",
+ originalValue,
+ readBackValue);
+ throw new RuntimeException(errorMessage);
+ } else {
+ System.out.printf("Written and read back double values match\n0x%X 0x%X\n",
+ originalValue,
+ readBackValue);
+ }
+
+ }
+
+ public static void main(String args[]) {
+ System.out.println("### NanTest started");
+
+ testFloat();
+ testDouble();
+
+ System.out.println("### NanTest ended");
+ }
+}