1 /* 2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.jtt.backend; 24 25 import static org.graalvm.compiler.api.directives.GraalDirectives.LIKELY_PROBABILITY; 26 import static org.graalvm.compiler.api.directives.GraalDirectives.injectBranchProbability; 27 28 import java.lang.reflect.Method; 29 30 import org.junit.Test; 31 32 import org.graalvm.compiler.core.common.GraalOptions; 33 import org.graalvm.compiler.jtt.JTTTest; 34 import org.graalvm.compiler.options.OptionValue; 35 import org.graalvm.compiler.options.OptionValue.OverrideScope; 36 37 public class ConstantPhiTest extends JTTTest { 38 39 public static int test(int i, int x) throws Throwable { 40 int r; 41 if (injectBranchProbability(LIKELY_PROBABILITY, i < 0)) { 42 r = 42; 43 } else { 44 r = x; 45 } 46 destroyCallerSavedValues(); 47 return r; 48 } 49 50 protected static void destroyCallerSavedValues() throws Throwable { 51 Class<ConstantPhiTest> c = ConstantPhiTest.class; 52 Method m = c.getMethod("destroyCallerSavedValues0"); 53 m.invoke(null); 54 } 55 56 public static void destroyCallerSavedValues0() { 57 } 58 59 @Test 60 @SuppressWarnings("try") 61 public void run0() { 62 try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) { 63 runTest("test", 0, 0xDEADDEAD); 64 } 65 } 66 67 @Test 68 @SuppressWarnings("try") 69 public void run1() { 70 try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) { 71 runTest("test", -1, 0xDEADDEAD); 72 } 73 } 74 75 @Test 76 @SuppressWarnings("try") 77 public void run2() { 78 try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) { 79 runTest("test", 1, 0xDEADDEAD); 80 } 81 } 82 }