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/*
* Copyright (c) 2013, 2020, 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
* @key randomness
* @bug 8026844
* @summary Test repeating subtractExact
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
*
* @run main compiler.intrinsics.mathexact.SubExactIRepeatTest
*/
package compiler.intrinsics.mathexact;
import jdk.test.lib.Utils;
import java.util.Random;
public class SubExactIRepeatTest {
public static void main(String[] args) {
runTest(new Verify.SubExactI());
}
public static int nonExact(int x, int y, Verify.BinaryMethod method) {
int result = method.unchecked(x, y);
result += method.unchecked(x, y);
result += method.unchecked(x, y);
result += method.unchecked(x, y);
return result;
}
public static void runTest(Verify.BinaryMethod method) {
Random rnd = Utils.getRandomInstance();
for (int i = 0; i < 50000; ++i) {
int x = Integer.MIN_VALUE + 10;
int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5);
int c = rnd.nextInt() / 2;
int d = rnd.nextInt() / 2;
int a = catchingExact(x, y, method);
if (a != 36) {
throw new RuntimeException("a != 36 : " + a);
}
int b = nonExact(c, d, method);
int n = exact(c, d, method);
if (n != b) {
throw new RuntimeException("n != b : " + n + " != " + b);
}
}
}
public static int exact(int x, int y, Verify.BinaryMethod method) {
int result = 0;
result += method.checkMethod(x, y);
result += method.checkMethod(x, y);
result += method.checkMethod(x, y);
result += method.checkMethod(x, y);
return result;
}
public static int catchingExact(int x, int y, Verify.BinaryMethod method) {
int result = 0;
try {
result += 5;
result = method.checkMethod(x, y);
} catch (ArithmeticException e) {
result += 1;
}
try {
result += 6;
result += method.checkMethod(x, y);
} catch (ArithmeticException e) {
result += 2;
}
try {
result += 7;
result += method.checkMethod(x, y);
} catch (ArithmeticException e) {
result += 3;
}
try {
result += 8;
result += method.checkMethod(x, y);
} catch (ArithmeticException e) {
result += 4;
}
return result;
}
}
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