72 lines
2.3 KiB
Java
72 lines
2.3 KiB
Java
/*
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* Copyright (c) 2023, Oracle and/or its affiliates. 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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package compiler.c2;
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/*
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* @test
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* @bug 8314191
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* @summary Loop increment should not be transformed into unsigned comparison
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*
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* @run main/othervm -Xcomp -XX:-TieredCompilation
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* -XX:CompileCommand=compileonly,*MinValueStrideCountedLoop::test*
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* compiler.c2.MinValueStrideCountedLoop
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*/
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/*
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* @test
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* @bug 8316719
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* @summary Loop increment should not be transformed into unsigned comparison
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* @requires vm.compiler2.enabled
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* @run main/othervm -Xcomp -XX:-TieredCompilation -XX:-UseLoopPredicate
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* -XX:CompileCommand=compileonly,*MinValueStrideCountedLoop::test*
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* compiler.c2.MinValueStrideCountedLoop
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*/
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public class MinValueStrideCountedLoop {
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static int limit = 0;
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static int res = 0;
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static int[] array = new int[1];
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static boolean b;
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static void test1() {
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for (int i = 0; i >= limit + -2147483647; i += -2147483648) {
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res += 42;
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}
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}
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static int test2(int init, int limit) {
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int res = 0;
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int i = init;
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do {
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if (b) { }
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res += array[i];
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i += -2147483648;
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} while (i >= limit + -2147483647);
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return res;
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}
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public static void main(String[] args) {
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test1();
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test2(0, 0);
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}
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}
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