1 /* 2 * Copyright (c) 2013, 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 24 import compiler.whitebox.CompilerWhiteBoxTest; 25 26 /* 27 * @test MakeMethodNotCompilableTest 28 * @bug 8012322 8006683 8007288 8022832 29 * @library /testlibrary /test/lib / 30 * @modules java.management 31 * @build MakeMethodNotCompilableTest 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xmixed MakeMethodNotCompilableTest 35 * @summary testing of WB::makeMethodNotCompilable() 36 * @author igor.ignatyev@oracle.com 37 */ 38 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest { 39 private int bci; 40 public static void main(String[] args) throws Exception { 41 String directive = 42 "[{ match:\"*SimpleTestCaseHelper.*\", BackgroundCompilation: false }, " + 43 " { match:\"*.*\", inline:\"-*SimpleTestCaseHelper.*\"}]"; 44 if (WHITE_BOX.addCompilerDirective(directive) != 2) { 45 throw new RuntimeException("Could not add directive"); 46 } 47 try { 48 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args); 49 } finally { 50 WHITE_BOX.removeCompilerDirective(2); 51 } 52 } 53 54 private MakeMethodNotCompilableTest(TestCase testCase) { 55 super(testCase); 56 // to prevent inlining of #method 57 WHITE_BOX.testSetDontInlineMethod(method, true); 58 } 59 60 /** 61 * Tests {@code WB::makeMethodNotCompilable()} by calling it before 62 * compilation and checking that method isn't compiled. Also 63 * checks that WB::clearMethodState() clears no-compilable flags. For 64 * tiered, additional checks for all available levels are conducted. 65 * 66 * @throws Exception if one of the checks fails. 67 */ 68 @Override 69 protected void test() throws Exception { 70 if (skipXcompOSR()) { 71 return; 72 } 73 checkNotCompiled(); 74 if (!isCompilable()) { 75 throw new RuntimeException(method + " must be compilable"); 76 } 77 78 bci = getBci(); 79 80 if (TIERED_COMPILATION) { 81 final int tierLimit = TIERED_STOP_AT_LEVEL + 1; 82 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) { 83 testTier(testedTier); 84 } 85 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) { 86 makeNotCompilable(testedTier); 87 if (isCompilable(testedTier)) { 88 throw new RuntimeException(method 89 + " must be not compilable at level" + testedTier); 90 } 91 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci); 92 checkNotCompiled(); 93 94 if (!isCompilable()) { 95 System.out.println(method 96 + " is not compilable after level " + testedTier); 97 } 98 } 99 } else { 100 compile(); 101 checkCompiled(); 102 int compLevel = getCompLevel(); 103 deoptimize(); 104 makeNotCompilable(compLevel); 105 if (isCompilable(COMP_LEVEL_ANY)) { 106 throw new RuntimeException(method 107 + " must be not compilable at CompLevel::CompLevel_any," 108 + " after it is not compilable at " + compLevel); 109 } 110 111 WHITE_BOX.clearMethodState(method); 112 if (!isCompilable()) { 113 throw new RuntimeException(method 114 + " is not compilable after clearMethodState()"); 115 } 116 117 // nocompilable at opposite level must make no sense 118 int oppositeLevel; 119 if (isC1Compile(compLevel)) { 120 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION; 121 } else { 122 oppositeLevel = COMP_LEVEL_SIMPLE; 123 } 124 makeNotCompilable(oppositeLevel); 125 126 if (!isCompilable(COMP_LEVEL_ANY)) { 127 throw new RuntimeException(method 128 + " must be compilable at CompLevel::CompLevel_any," 129 + " even it is not compilable at opposite level [" 130 + compLevel + "]"); 131 } 132 133 if (!isCompilable(compLevel)) { 134 throw new RuntimeException(method 135 + " must be compilable at level " + compLevel 136 + ", even it is not compilable at opposite level [" 137 + compLevel + "]"); 138 } 139 } 140 141 // clearing after tiered/non-tiered tests 142 // WB.clearMethodState() must reset no-compilable flags 143 WHITE_BOX.clearMethodState(method); 144 if (!isCompilable()) { 145 throw new RuntimeException(method 146 + " is not compilable after clearMethodState()"); 147 } 148 // Make method not (OSR-)compilable (depending on testCase.isOsr()) 149 makeNotCompilable(); 150 if (isCompilable()) { 151 throw new RuntimeException(method + " must be not compilable"); 152 } 153 // Try to (OSR-)compile method 154 compile(); 155 // Method should not be (OSR-)compiled 156 checkNotCompiled(testCase.isOsr()); 157 if (isCompilable()) { 158 throw new RuntimeException(method + " must be not compilable"); 159 } 160 // WB.clearMethodState() must reset no-compilable flags 161 WHITE_BOX.clearMethodState(method); 162 if (!isCompilable()) { 163 throw new RuntimeException(method 164 + " is not compilable after clearMethodState()"); 165 } 166 compile(); 167 checkCompiled(); 168 } 169 170 // separately tests each tier 171 private void testTier(int testedTier) { 172 if (!isCompilable(testedTier)) { 173 throw new RuntimeException(method 174 + " is not compilable on start"); 175 } 176 makeNotCompilable(testedTier); 177 178 // tests for all other tiers 179 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1; 180 anotherTier < tierLimit; ++anotherTier) { 181 boolean isCompilable = isCompilable(anotherTier); 182 if (sameCompile(testedTier, anotherTier)) { 183 if (isCompilable) { 184 throw new RuntimeException(method 185 + " must be not compilable at level " + anotherTier 186 + ", if it is not compilable at " + testedTier); 187 } 188 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci); 189 checkNotCompiled(); 190 } else { 191 if (!isCompilable) { 192 throw new RuntimeException(method 193 + " must be compilable at level " + anotherTier 194 + ", even if it is not compilable at " 195 + testedTier); 196 } 197 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci); 198 checkCompiled(); 199 deoptimize(); 200 } 201 202 if (!isCompilable(COMP_LEVEL_ANY)) { 203 throw new RuntimeException(method 204 + " must be compilable at 'CompLevel::CompLevel_any'" 205 + ", if it is not compilable only at " + testedTier); 206 } 207 } 208 209 // clear state after test 210 WHITE_BOX.clearMethodState(method); 211 if (!isCompilable(testedTier)) { 212 throw new RuntimeException(method 213 + " is not compilable after clearMethodState()"); 214 } 215 } 216 217 private boolean sameCompile(int level1, int level2) { 218 if (level1 == level2) { 219 return true; 220 } 221 if (isC1Compile(level1) && isC1Compile(level2)) { 222 return true; 223 } 224 if (isC2Compile(level1) && isC2Compile(level2)) { 225 return true; 226 } 227 return false; 228 } 229 230 private int getBci() { 231 compile(); 232 checkCompiled(); 233 int result = WHITE_BOX.getMethodEntryBci(method); 234 deoptimize(); 235 WHITE_BOX.clearMethodState(method); 236 return result; 237 } 238 }