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...nal.vm.compiler.test/src/org/graalvm/compiler/core/test/ConditionalEliminationTest17.java
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| /* | ||
| * Copyright (c) 2019, 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. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * 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 org.graalvm.compiler.core.test; | ||
|
|
||
| import java.util.EnumSet; | ||
|
|
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| import org.graalvm.compiler.api.directives.GraalDirectives; | ||
| import org.graalvm.compiler.core.common.GraalOptions; | ||
| import org.graalvm.compiler.options.OptionValues; | ||
| import org.junit.Test; | ||
|
|
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| import jdk.vm.ci.meta.DeoptimizationReason; | ||
|
|
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| public class ConditionalEliminationTest17 extends ConditionalEliminationTestBase { | ||
|
|
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| static final class A { | ||
| } | ||
|
|
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| static final class B { | ||
| int value = 1337; | ||
|
|
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| int value() { | ||
| return value; | ||
| } | ||
| } | ||
|
|
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| private static boolean equals(byte[] a, byte[] b) { | ||
| if (a == b) { | ||
| return true; | ||
| } else if (a.length != b.length) { | ||
| return false; | ||
| } else { | ||
| for (int i = 0; i < a.length; i++) { | ||
| if (a[i] != b[i]) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
| } | ||
|
|
||
| private static final Object X = new Object(); | ||
| private static final Object Y = new Object(); | ||
|
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| public static int test1Snippet(byte[][] haystack, byte[] needle, Object[] otherValues) { | ||
| Object someValue = otherValues[0]; | ||
| Object anotherValue1 = otherValues[1]; | ||
| Object anotherValue2 = otherValues[2]; | ||
| if (haystack.length != 0) { | ||
| for (int i = 0; i < haystack.length; i++) { | ||
| byte[] hay = haystack[i]; | ||
| if (equals(hay, needle)) { | ||
| int result = 42; | ||
| if (anotherValue1 == X) { | ||
| if (anotherValue2 == Y) { | ||
| result++; | ||
| GraalDirectives.controlFlowAnchor(); | ||
| } | ||
| GraalDirectives.controlFlowAnchor(); | ||
| } | ||
| if (someValue.getClass() != A.class) { | ||
| GraalDirectives.deoptimizeAndInvalidate(); | ||
| } | ||
| GraalDirectives.controlFlowAnchor(); | ||
| return result; | ||
| } | ||
| } | ||
| } | ||
| return ((B) someValue).value(); | ||
| } | ||
|
|
||
| @Test | ||
| public void test1() { | ||
| Object[] args = {new byte[][]{"foo".getBytes(), "bar".getBytes()}, "neither".getBytes(), new Object[]{new B(), X, Y}}; | ||
| test(getInitialOptions(), EnumSet.allOf(DeoptimizationReason.class), "test1Snippet", args); | ||
| } | ||
|
|
||
| public static int test2Snippet(byte[][] haystack, byte[] needle, Object[] otherValues) { | ||
| Object someValue = otherValues[0]; | ||
| Object anotherValue1 = otherValues[1]; | ||
| Object anotherValue2 = otherValues[2]; | ||
| if (haystack.length != 0) { | ||
| for (int i = 0; i < haystack.length; i++) { | ||
| byte[] hay = haystack[i]; | ||
| if (equals(hay, needle)) { | ||
| int result = 42; | ||
| if (anotherValue1 == X) { | ||
| if (anotherValue2 == Y) { | ||
| result++; | ||
| GraalDirectives.controlFlowAnchor(); | ||
| } | ||
| GraalDirectives.controlFlowAnchor(); | ||
| } | ||
| if (someValue == null || someValue.getClass() != A.class) { | ||
| GraalDirectives.deoptimizeAndInvalidate(); | ||
| } | ||
| GraalDirectives.controlFlowAnchor(); | ||
| return result; | ||
| } | ||
| } | ||
| } | ||
| return ((B) someValue).value(); | ||
| } | ||
|
|
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| @Test | ||
| public void test2() { | ||
| Object[] args = {new byte[][]{"foo".getBytes(), "bar".getBytes()}, "bad".getBytes(), new Object[]{new B(), X, Y}}; | ||
| test(getInitialOptions(), EnumSet.allOf(DeoptimizationReason.class), "test2Snippet", args); | ||
| } | ||
|
|
||
| // simplified and reduced version of equals (semantics of this method is not relevant, only IR | ||
| // shape) | ||
| private static boolean simpleEquals(byte[][] a) { | ||
| for (int i = 0; i < a.length; i++) { | ||
| if (GraalDirectives.sideEffect(i) == 123) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
|
|
||
| } | ||
|
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| // simplified and reduced version of test1Snippet (semantics of this method is not relevant, | ||
| // only IR shape) | ||
| @SuppressWarnings("unused") | ||
| public static int test3Snippet(byte[][] haystack, byte[] needle, Object someValue, Object anotherValue1) { | ||
| for (int i = 0; i < haystack.length; i++) { | ||
| if (simpleEquals(haystack)) { | ||
| int result = 42; | ||
| if (anotherValue1 == X) { | ||
| GraalDirectives.controlFlowAnchor(); | ||
| } | ||
| if (someValue.getClass() != A.class) { | ||
| GraalDirectives.deoptimizeAndInvalidate(); | ||
| } | ||
| return result; | ||
| } | ||
| } | ||
| return 0; | ||
| } | ||
|
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| @Test | ||
| public void test3() { | ||
| Object[] args = {new byte[][]{"foo".getBytes(), "bar".getBytes()}, "neither".getBytes(), X, Y}; | ||
| OptionValues opt = new OptionValues(getInitialOptions(), GraalOptions.OptFloatingReads, false); | ||
| test(opt, EnumSet.allOf(DeoptimizationReason.class), "test3Snippet", args); | ||
| } | ||
|
|
||
| } |
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