113 lines
4.6 KiB
Java
113 lines
4.6 KiB
Java
/*
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* Copyright (c) 2022, BELLSOFT. All rights reserved.
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* Copyright (c) 2022, 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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/**
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* @test
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* @bug 8153837
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* @summary Test integer min and max intrinsics
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* @requires vm.flavor == "server" & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 4)
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc
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*
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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*
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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* -server -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
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* compiler.intrinsics.math.TestMinMaxIntrinsics
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*/
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package compiler.intrinsics.math;
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import java.lang.reflect.Method;
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import java.util.function.IntUnaryOperator;
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import java.util.function.IntBinaryOperator;
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import jdk.test.whitebox.WhiteBox;
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import static jdk.test.lib.Asserts.assertEQ;
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import static jdk.test.lib.Asserts.assertTrue;
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import static compiler.whitebox.CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION;
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public class TestMinMaxIntrinsics {
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static WhiteBox wb = WhiteBox.getWhiteBox();
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static int[] intCases = { Integer.MIN_VALUE, -2, -1, 0, 1, 2, Integer.MAX_VALUE };
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public static long im3l = Integer.MIN_VALUE * 3L;
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static void test(IntUnaryOperator std, IntUnaryOperator alt) throws ReflectiveOperationException {
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for (int a : intCases) {
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assertEQ(std.applyAsInt(a), alt.applyAsInt(a), String.format("Failed on %d", a));
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}
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var method = alt.getClass().getDeclaredMethod("applyAsInt", int.class);
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wb.enqueueMethodForCompilation(method, COMP_LEVEL_FULL_OPTIMIZATION);
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assertTrue(wb.isMethodCompiled(method));
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for (int a : intCases) {
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assertEQ(std.applyAsInt(a), alt.applyAsInt(a), String.format("Failed on %d", a));
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}
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}
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static void test(IntBinaryOperator std, IntBinaryOperator alt) throws ReflectiveOperationException {
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for (int a : intCases) {
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for (int b : intCases) {
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assertEQ(std.applyAsInt(a, b), alt.applyAsInt(a, b), String.format("Failed on %d, %d", a, b));
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}
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}
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var method = alt.getClass().getDeclaredMethod("applyAsInt", int.class, int.class);
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wb.enqueueMethodForCompilation(method, COMP_LEVEL_FULL_OPTIMIZATION);
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assertTrue(wb.isMethodCompiled(method));
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for (int a : intCases) {
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for (int b : intCases) {
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assertEQ(std.applyAsInt(a, b), alt.applyAsInt(a, b), String.format("Failed on %d, %d", a, b));
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}
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}
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}
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static int maxL2I(long a, int b) {
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return Math.max((int) a, b);
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}
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static void testL2I() throws NoSuchMethodException {
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assertEQ(0, maxL2I(im3l, 0));
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var method = TestMinMaxIntrinsics.class.getDeclaredMethod("maxL2I", long.class, int.class);
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wb.enqueueMethodForCompilation(method, COMP_LEVEL_FULL_OPTIMIZATION);
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assertTrue(wb.isMethodCompiled(method));
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assertEQ(0, maxL2I(im3l, 0));
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}
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public static void main(String[] args) throws Exception {
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test(a -> (a <= 0) ? a : 0, a -> Math.min(a, 0));
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test(a -> (a <= 1) ? a : 1, a -> Math.min(a, 1));
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test(a -> (a <= -1) ? a : -1, a -> Math.min(a, -1));
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test(a -> (0 >= a) ? 0 : a, a -> Math.max(0, a));
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test(a -> (1 >= a) ? 1 : a, a -> Math.max(1, a));
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test(a -> (-1 >= a) ? -1 : a, a -> Math.max(-1, a));
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test((a, b) -> (a <= b) ? a : b, (a, b) -> Math.min(a, b));
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test((a, b) -> (a >= b) ? a : b, (a, b) -> Math.max(a, b));
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testL2I();
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}
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}
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