1 /* 2 * Copyright (c) 2013, 2014, 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 24 /* 25 * @test MakeMethodNotCompilableTest 26 * @bug 8012322 8006683 8007288 8022832 27 * @library /testlibrary /testlibrary/whitebox 28 * @build MakeMethodNotCompilableTest 29 * @run main ClassFileInstaller sun.hotspot.WhiteBox 30 * sun.hotspot.WhiteBox$WhiteBoxPermission 31 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* MakeMethodNotCompilableTest 32 * @summary testing of WB::makeMethodNotCompilable() 33 * @author igor.ignatyev@oracle.com 34 */ 35 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest { 36 private int bci; 37 public static void main(String[] args) throws Exception { 38 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args); 39 } 40 41 private MakeMethodNotCompilableTest(TestCase testCase) { 42 super(testCase); 43 // to prevent inlining of #method 44 WHITE_BOX.testSetDontInlineMethod(method, true); 45 } 46 47 /** 48 * Tests {@code WB::makeMethodNotCompilable()} by calling it before 49 * compilation and checking that method isn't compiled. Also 50 * checks that WB::clearMethodState() clears no-compilable flags. For 51 * tiered, additional checks for all available levels are conducted. 52 * 53 * @throws Exception if one of the checks fails. 54 */ 55 @Override 56 protected void test() throws Exception { 57 if (skipXcompOSR()) { 58 return; 59 } 60 checkNotCompiled(); 61 if (!isCompilable()) { 62 throw new RuntimeException(method + " must be compilable"); 63 } 64 65 bci = getBci(); 66 67 if (TIERED_COMPILATION) { 68 final int tierLimit = TIERED_STOP_AT_LEVEL + 1; 69 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) { 70 testTier(testedTier); 71 } 72 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) { 73 makeNotCompilable(testedTier); 74 if (isCompilable(testedTier)) { 75 throw new RuntimeException(method 76 + " must be not compilable at level" + testedTier); 77 } 78 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci); 79 checkNotCompiled(); 80 81 if (!isCompilable()) { 82 System.out.println(method 83 + " is not compilable after level " + testedTier); 84 } 85 } 86 } else { 87 compile(); 88 checkCompiled(); 89 int compLevel = getCompLevel(); 90 deoptimize(); 91 makeNotCompilable(compLevel); 92 if (isCompilable(COMP_LEVEL_ANY)) { 93 throw new RuntimeException(method 94 + " must be not compilable at CompLevel::CompLevel_any," 95 + " after it is not compilable at " + compLevel); 96 } 97 98 WHITE_BOX.clearMethodState(method); 99 if (!isCompilable()) { 100 throw new RuntimeException(method 101 + " is not compilable after clearMethodState()"); 102 } 103 104 // nocompilable at opposite level must make no sense 105 int oppositeLevel; 106 if (isC1Compile(compLevel)) { 107 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION; 108 } else { 109 oppositeLevel = COMP_LEVEL_SIMPLE; 110 } 111 makeNotCompilable(oppositeLevel); 112 113 if (!isCompilable(COMP_LEVEL_ANY)) { 114 throw new RuntimeException(method 115 + " must be compilable at CompLevel::CompLevel_any," 116 + " even it is not compilable at opposite level [" 117 + compLevel + "]"); 118 } 119 120 if (!isCompilable(compLevel)) { 121 throw new RuntimeException(method 122 + " must be compilable at level " + compLevel 123 + ", even it is not compilable at opposite level [" 124 + compLevel + "]"); 125 } 126 } 127 128 // clearing after tiered/non-tiered tests 129 // WB.clearMethodState() must reset no-compilable flags 130 WHITE_BOX.clearMethodState(method); 131 if (!isCompilable()) { 132 throw new RuntimeException(method 133 + " is not compilable after clearMethodState()"); 134 } 135 136 makeNotCompilable(); 137 if (isCompilable()) { 138 throw new RuntimeException(method + " must be not compilable"); 139 } 140 141 compile(); 142 checkNotCompiled(); 143 if (isCompilable()) { 144 throw new RuntimeException(method + " must be not compilable"); 145 } 146 // WB.clearMethodState() must reset no-compilable flags 147 WHITE_BOX.clearMethodState(method); 148 if (!isCompilable()) { 149 throw new RuntimeException(method 150 + " is not compilable after clearMethodState()"); 151 } 152 compile(); 153 checkCompiled(); 154 } 155 156 // separately tests each tier 157 private void testTier(int testedTier) { 158 if (!isCompilable(testedTier)) { 159 throw new RuntimeException(method 160 + " is not compilable on start"); 161 } 162 makeNotCompilable(testedTier); 163 164 // tests for all other tiers 165 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1; 166 anotherTier < tierLimit; ++anotherTier) { 167 boolean isCompilable = isCompilable(anotherTier); 168 if (sameCompile(testedTier, anotherTier)) { 169 if (isCompilable) { 170 throw new RuntimeException(method 171 + " must be not compilable at level " + anotherTier 172 + ", if it is not compilable at " + testedTier); 173 } 174 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci); 175 checkNotCompiled(); 176 } else { 177 if (!isCompilable) { 178 throw new RuntimeException(method 179 + " must be compilable at level " + anotherTier 180 + ", even if it is not compilable at " 181 + testedTier); 182 } 183 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci); 184 checkCompiled(); 185 deoptimize(); 186 } 187 188 if (!isCompilable(COMP_LEVEL_ANY)) { 189 throw new RuntimeException(method 190 + " must be compilable at 'CompLevel::CompLevel_any'" 191 + ", if it is not compilable only at " + testedTier); 192 } 193 } 194 195 // clear state after test 196 WHITE_BOX.clearMethodState(method); 197 if (!isCompilable(testedTier)) { 198 throw new RuntimeException(method 199 + " is not compilable after clearMethodState()"); 200 } 201 } 202 203 private boolean sameCompile(int level1, int level2) { 204 if (level1 == level2) { 205 return true; 206 } 207 if (isC1Compile(level1) && isC1Compile(level2)) { 208 return true; 209 } 210 if (isC2Compile(level1) && isC2Compile(level2)) { 211 return true; 212 } 213 return false; 214 } 215 216 private int getBci() { 217 compile(); 218 checkCompiled(); 219 int result = WHITE_BOX.getMethodEntryBci(method); 220 deoptimize(); 221 WHITE_BOX.clearMethodState(method); 222 return result; 223 } 224 }