jdk-24/test/hotspot/jtreg/compiler/loopopts/TestEmptyPreLoopForDifferentMainLoop.java
2024-03-14 07:12:16 +00:00

58 lines
1.9 KiB
Java

/*
* Copyright (c) 2024, 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
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*/
/*
* @test
* @bug 8327423
* @summary Test empty loop removal of pre-loop, with different main-loop after it.
* @run main/othervm -Xcomp
* -XX:CompileCommand=compileonly,compiler.loopopts.TestEmptyPreLoopForDifferentMainLoop::test
* compiler.loopopts.TestEmptyPreLoopForDifferentMainLoop
* @run main compiler.loopopts.TestEmptyPreLoopForDifferentMainLoop
*/
package compiler.loopopts;
public class TestEmptyPreLoopForDifferentMainLoop {
static int sink;
public static void main(String args[]) {
test(false);
}
static void test(boolean flag) {
int x = 8;
for (int j = 0; j < 100; j++) {
for (int k = 0; k < 100; k++) {
if (flag) {
x += k;
sink = 42;
}
}
if (flag) {
break;
}
}
}
}