diff test/compiler/intrinsics/mathexact/RepeatTest.java @ 12888:4a2acfb16e97

8025657: compiler/intrinsics/mathexact/ConstantTest.java fails on assert in lcm.cpp on solaris x64 Reviewed-by: kvn, twisti
author rbackman
date Fri, 11 Oct 2013 12:06:14 +0200
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/intrinsics/mathexact/RepeatTest.java	Fri Oct 11 12:06:14 2013 +0200
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2013, 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 8025657
+ * @summary Test repeating addExact
+ * @compile RepeatTest.java
+ * @run main RepeatTest
+ *
+ */
+
+import java.lang.ArithmeticException;
+
+public class RepeatTest {
+  public static void main(String[] args) {
+    java.util.Random rnd = new java.util.Random();
+    for (int i = 0; i < 50000; ++i) {
+      int x = Integer.MAX_VALUE - 10;
+      int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); //rnd.nextInt() / 2;
+
+      int c = rnd.nextInt() / 2;
+      int d = rnd.nextInt() / 2;
+
+      int a = addExact(x, y);
+
+      if (a != 36) {
+          throw new RuntimeException("a != 0 : " + a);
+      }
+
+      int b = nonExact(c, d);
+      int n = addExact2(c, d);
+
+
+      if (n != b) {
+        throw new RuntimeException("n != b : " + n + " != " + b);
+      }
+    }
+  }
+
+  public static int addExact2(int x, int y) {
+      int result = 0;
+      result += java.lang.Math.addExact(x, y);
+      result += java.lang.Math.addExact(x, y);
+      result += java.lang.Math.addExact(x, y);
+      result += java.lang.Math.addExact(x, y);
+      return result;
+  }
+
+  public static int addExact(int x, int y) {
+    int result = 0;
+    try {
+        result += 5;
+        result = java.lang.Math.addExact(x, y);
+    } catch (ArithmeticException e) {
+        result += 1;
+    }
+    try {
+        result += 6;
+
+        result += java.lang.Math.addExact(x, y);
+    } catch (ArithmeticException e) {
+        result += 2;
+    }
+    try {
+        result += 7;
+        result += java.lang.Math.addExact(x, y);
+    } catch (ArithmeticException e) {
+        result += 3;
+    }
+    try {
+        result += 8;
+        result += java.lang.Math.addExact(x, y);
+    } catch (ArithmeticException e) {
+        result += 4;
+    }
+    return result;
+  }
+
+  public static int nonExact(int x, int y) {
+    int result = x + y;
+    result += x + y;
+    result += x + y;
+    result += x + y;
+    return result;
+  }
+}