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/*
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* Copyright (c) 2015, 2019, 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 org.graalvm.compiler.core.test;
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import org.graalvm.compiler.debug.DebugContext;
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import org.graalvm.compiler.nodes.StructuredGraph;
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import org.graalvm.compiler.nodes.ValueNode;
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import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
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import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin;
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import org.graalvm.compiler.nodes.spi.CoreProviders;
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import org.graalvm.compiler.phases.common.CanonicalizerPhase;
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import org.junit.Ignore;
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import org.junit.Test;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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public class ConditionalEliminationTest13 extends ConditionalEliminationTestBase {
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@Override
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protected InlineInvokePlugin.InlineInfo bytecodeParserShouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
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return InlineInvokePlugin.InlineInfo.createStandardInlineInfo(method);
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}
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public static void referenceSnippet1(int a) {
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if (Integer.compareUnsigned(a, a + 1) < 0) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet1(int a) {
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if (Integer.compareUnsigned(a, a + 1) < 0 || a == 0) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void referenceSnippet2(int a) {
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if (0 < a) {
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet2(int a) {
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if (0 < a) {
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if (a == -1) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet3(int a) {
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if (0 < a) {
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if (a == 1) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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@SuppressWarnings("unused")
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public static void referenceSnippet4(int a) {
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sink1 = 0;
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}
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public static void testSnippet4(int a) {
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if (Integer.compareUnsigned(a - 1, a) < 0 || a == 0) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet5(int a) {
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if (a < 0) {
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if (a == -1) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void referenceSnippet6(int a) {
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if (a < 0) {
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet6(int a) {
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if (a < 0) {
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if (a == 0) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet7(int a) {
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if (0 < a) {
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if (a == 0) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet8(int a) {
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if (Integer.compareUnsigned(a, a + 1) < 0 || a == 0xffff_ffff) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void referenceSnippet9(int a) {
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if (Integer.compareUnsigned(a - 1, a) < 0) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet9(int a) {
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if (Integer.compareUnsigned(a - 1, a) < 0 || a == 0xffff_ffff) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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private static int either(int a, int b) {
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return (sink0 + sink1 + sink2) == 0 ? a : b;
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}
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public static void testSnippet10(int a) {
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if (Integer.compareUnsigned(a, a + either(1, 2)) < 0 || a == 0xffff_ffff || a == 0xffff_fffe) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void referenceSnippet11(int a) {
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if (Integer.compareUnsigned(a, Integer.MAX_VALUE + 1) > 0) {
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void testSnippet11(int a) {
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if (Integer.compareUnsigned(a, Integer.MAX_VALUE + 1) > 0) {
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if (Integer.compareUnsigned(a, 42) <= 0) {
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sink2 = -2;
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}
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sink1 = 0;
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}
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sink0 = -1;
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}
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public static void referenceSnippet12(int a) {
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if (Integer.compareUnsigned(a, 0xffff_ffff) >= 0) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet12(int a) {
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if (Integer.compareUnsigned(a, 0xffff_ffff) >= 0 && a == 0xffff_ffff) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet13(int a) {
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int x = either(0, 1);
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if (a <= a + x) {
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if (a == Integer.MAX_VALUE) {
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sink2 = -2;
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}
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void referenceSnippet14(int a) {
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int x = either(0, 1);
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if (a < a + x) {
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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public static void testSnippet14(int a) {
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int x = either(0, 1);
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if (a < a + x) {
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if (a == Integer.MAX_VALUE) {
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sink2 = -2;
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}
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sink1 = 0;
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} else {
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sink0 = -1;
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}
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}
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@Test
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public void test1() {
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testConditionalElimination("testSnippet1", "referenceSnippet1");
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}
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@Test
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public void test2() {
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testConditionalElimination("testSnippet2", "referenceSnippet2");
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}
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@Test
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public void test3() {
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testConditionalElimination("testSnippet3", "testSnippet3");
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}
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@Test
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public void test4() {
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testConditionalElimination("testSnippet4", "referenceSnippet4");
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}
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@Test
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public void test5() {
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testConditionalElimination("testSnippet5", "testSnippet5");
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}
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@Test
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public void test6() {
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testConditionalElimination("testSnippet6", "referenceSnippet6");
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}
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@Test
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public void test7() {
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testConditionalElimination("testSnippet7", "referenceSnippet2");
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}
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@Test
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public void test8() {
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testConditionalElimination("testSnippet8", "referenceSnippet4");
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}
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@Test
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public void test9() {
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testConditionalElimination("testSnippet9", "referenceSnippet9");
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}
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@Ignore("Need better unsigned stamps for this conditional elimination to work.")
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@Test
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public void test10() {
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testConditionalElimination("testSnippet10", "referenceSnippet4");
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}
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@Test
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public void test11() {
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testConditionalElimination("testSnippet11", "referenceSnippet11");
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}
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@Test
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public void test12() {
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testConditionalElimination("testSnippet12", "referenceSnippet12");
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}
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@Test
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public void test13() {
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testConditionalElimination("testSnippet13", "testSnippet13");
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}
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@Test
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public void test14() {
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testConditionalElimination("testSnippet14", "referenceSnippet14");
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}
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@Override
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protected void prepareGraph(StructuredGraph graph, CanonicalizerPhase canonicalizer, CoreProviders context, boolean applyLowering) {
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super.prepareGraph(graph, canonicalizer, context, applyLowering);
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graph.clearAllStateAfter();
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graph.setGuardsStage(StructuredGraph.GuardsStage.AFTER_FSA);
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DebugContext debug = graph.getDebug();
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debug.dump(DebugContext.BASIC_LEVEL, graph, "After preparation");
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canonicalizer.apply(graph, context);
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}
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}
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