67 lines
2.6 KiB
Java
67 lines
2.6 KiB
Java
/*
|
|
* Copyright (c) 2021, 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.
|
|
*/
|
|
|
|
package compiler.exceptions;
|
|
|
|
/**
|
|
* @test
|
|
* @key stress randomness
|
|
* @bug 8263227
|
|
* @summary Tests that users of return values from exception-throwing method
|
|
* calls are not duplicated in the call's exception path. The second
|
|
* run with a variable seed is added for test robustness.
|
|
* @library /test/lib /
|
|
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions
|
|
* -XX:+UnlockDiagnosticVMOptions
|
|
* -Xbatch -XX:+StressGCM -XX:StressSeed=0
|
|
* -XX:+VerifyRegisterAllocator
|
|
* -XX:CompileCommand=dontinline,java.lang.Integer::*
|
|
* compiler.exceptions.TestSpilling
|
|
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions
|
|
* -XX:+UnlockDiagnosticVMOptions
|
|
* -Xbatch -XX:+StressGCM
|
|
* -XX:+VerifyRegisterAllocator
|
|
* -XX:CompileCommand=dontinline,java.lang.Integer::*
|
|
* compiler.exceptions.TestSpilling
|
|
*/
|
|
|
|
public class TestSpilling {
|
|
|
|
public static void test() {
|
|
int a = Integer.valueOf(42).intValue();
|
|
// After global code motion, the logic below should only be placed in
|
|
// the fall-through path of java.lang.Integer::intValue(). Otherwise,
|
|
// live range splitting might create uses without reaching definitions
|
|
// if 'a' is spilled.
|
|
int b = (((a & 0x0000F000)) + 1);
|
|
int c = a / b + ((a % b > 0) ? 1 : 0);
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
for (int i = 0; i < 10_000; i++) {
|
|
test();
|
|
}
|
|
}
|
|
|
|
}
|