54 lines
1.9 KiB
Java
54 lines
1.9 KiB
Java
/*
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* Copyright (c) 2019, SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8220374
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* @summary C2: LoopStripMining doesn't strip as expected
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* @requires vm.compiler2.enabled
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*
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+SafepointTimeout -XX:+SafepointALot
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* -XX:+AbortVMOnSafepointTimeout -XX:SafepointTimeoutDelay=500 -XX:GuaranteedSafepointInterval=500
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* -XX:-TieredCompilation -XX:+UseCountedLoopSafepoints -XX:LoopStripMiningIter=1000
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* -XX:LoopUnrollLimit=0 -XX:CompileCommand=compileonly,CheckLoopStripMining::test_loop -Xcomp CheckLoopStripMining
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*
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*/
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public class CheckLoopStripMining {
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public static int test_loop(int x) {
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int sum = 0;
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if (x != 0) {
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for (int y = 1; y < Integer.MAX_VALUE; ++y) {
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if (y % x == 0) ++sum;
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}
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}
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return sum;
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}
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public static void main(String args[]) {
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int sum = test_loop(3);
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System.out.println("sum: " + sum);
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}
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}
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