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.base/jdk.internal.misc
31 * @modules java.management
32 * @build MakeMethodNotCompilableTest
33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
34 * sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xmixed -XX:-UseCounterDecay MakeMethodNotCompilableTest
36 * @summary testing of WB::makeMethodNotCompilable()
37 * @author igor.ignatyev@oracle.com
38 */
39 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
40 private int bci;
41 public static void main(String[] args) throws Exception {
42 String directive =
43 "[{ match:\"*SimpleTestCaseHelper.*\", BackgroundCompilation: false }, " +
44 " { match:\"*.*\", inline:\"-*SimpleTestCaseHelper.*\"}]";
45 if (WHITE_BOX.addCompilerDirective(directive) != 2) {
46 throw new RuntimeException("Could not add directive");
47 }
48 try {
49 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
50 } finally {
51 WHITE_BOX.removeCompilerDirective(2);
52 }
53 }
54
55 private MakeMethodNotCompilableTest(TestCase testCase) {
56 super(testCase);
57 // to prevent inlining of #method
58 WHITE_BOX.testSetDontInlineMethod(method, true);
59 }
60
61 /**
62 * Tests {@code WB::makeMethodNotCompilable()} by calling it before
63 * compilation and checking that method isn't compiled. Also
64 * checks that WB::clearMethodState() clears no-compilable flags. For
65 * tiered, additional checks for all available levels are conducted.
66 *
67 * @throws Exception if one of the checks fails.
68 */
69 @Override
70 protected void test() throws Exception {
71 if (skipXcompOSR()) {
72 return;
73 }
74 checkNotCompiled();
75 if (!isCompilable()) {
76 throw new RuntimeException(method + " must be compilable");
77 }
78
79 bci = getBci();
80
81 if (TIERED_COMPILATION) {
82 final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
83 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
84 testTier(testedTier);
85 }
86 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
87 makeNotCompilable(testedTier);
88 if (isCompilable(testedTier)) {
89 throw new RuntimeException(method
90 + " must be not compilable at level" + testedTier);
91 }
92 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
93 checkNotCompiled();
94
95 if (!isCompilable()) {
96 System.out.println(method
97 + " is not compilable after level " + testedTier);
98 }
99 }
100 } else {
101 compile();
102 checkCompiled();
103 int compLevel = getCompLevel();
104 deoptimize();
105 makeNotCompilable(compLevel);
106 if (isCompilable(COMP_LEVEL_ANY)) {
107 throw new RuntimeException(method
108 + " must be not compilable at CompLevel::CompLevel_any,"
109 + " after it is not compilable at " + compLevel);
110 }
111
112 WHITE_BOX.clearMethodState(method);
113 if (!isCompilable()) {
114 throw new RuntimeException(method
115 + " is not compilable after clearMethodState()");
116 }
117
118 // nocompilable at opposite level must make no sense
119 int oppositeLevel;
120 if (isC1Compile(compLevel)) {
121 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
122 } else {
123 oppositeLevel = COMP_LEVEL_SIMPLE;
124 }
125 makeNotCompilable(oppositeLevel);
126
127 if (!isCompilable(COMP_LEVEL_ANY)) {
128 throw new RuntimeException(method
129 + " must be compilable at CompLevel::CompLevel_any,"
130 + " even it is not compilable at opposite level ["
131 + compLevel + "]");
132 }
133
134 if (!isCompilable(compLevel)) {
135 throw new RuntimeException(method
136 + " must be compilable at level " + compLevel
137 + ", even it is not compilable at opposite level ["
138 + compLevel + "]");
139 }
140 }
141
142 // clearing after tiered/non-tiered tests
143 // WB.clearMethodState() must reset no-compilable flags
144 WHITE_BOX.clearMethodState(method);
145 if (!isCompilable()) {
146 throw new RuntimeException(method
147 + " is not compilable after clearMethodState()");
148 }
149 // Make method not (OSR-)compilable (depending on testCase.isOsr())
150 makeNotCompilable();
151 if (isCompilable()) {
152 throw new RuntimeException(method + " must be not compilable");
153 }
154 // Try to (OSR-)compile method
155 compile();
156 // Method should not be (OSR-)compiled
157 checkNotCompiled(testCase.isOsr());
158 if (isCompilable()) {
159 throw new RuntimeException(method + " must be not compilable");
160 }
161 // WB.clearMethodState() must reset no-compilable flags
162 WHITE_BOX.clearMethodState(method);
163 if (!isCompilable()) {
164 throw new RuntimeException(method
165 + " is not compilable after clearMethodState()");
166 }
167 compile();
168 checkCompiled();
169 }
170
171 // separately tests each tier
172 private void testTier(int testedTier) {
173 if (!isCompilable(testedTier)) {
174 throw new RuntimeException(method
175 + " is not compilable on start");
176 }
177 makeNotCompilable(testedTier);
178
179 // tests for all other tiers
180 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
181 anotherTier < tierLimit; ++anotherTier) {
182 boolean isCompilable = isCompilable(anotherTier);
183 if (sameCompile(testedTier, anotherTier)) {
184 if (isCompilable) {
185 throw new RuntimeException(method
186 + " must be not compilable at level " + anotherTier
187 + ", if it is not compilable at " + testedTier);
188 }
189 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
190 checkNotCompiled();
191 } else {
192 if (!isCompilable) {
193 throw new RuntimeException(method
194 + " must be compilable at level " + anotherTier
195 + ", even if it is not compilable at "
196 + testedTier);
197 }
198 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
199 checkCompiled();
200 deoptimize();
201 }
202
203 if (!isCompilable(COMP_LEVEL_ANY)) {
204 throw new RuntimeException(method
205 + " must be compilable at 'CompLevel::CompLevel_any'"
206 + ", if it is not compilable only at " + testedTier);
207 }
208 }
209
210 // clear state after test
211 WHITE_BOX.clearMethodState(method);
212 if (!isCompilable(testedTier)) {
213 throw new RuntimeException(method
214 + " is not compilable after clearMethodState()");
215 }
216 }
217
218 private boolean sameCompile(int level1, int level2) {
219 if (level1 == level2) {
220 return true;
221 }
222 if (isC1Compile(level1) && isC1Compile(level2)) {
223 return true;
224 }
225 if (isC2Compile(level1) && isC2Compile(level2)) {
226 return true;
227 }
228 return false;
229 }
230
231 private int getBci() throws Exception {
232 compile();
233 checkCompiled();
234 int result = WHITE_BOX.getMethodEntryBci(method);
235 deoptimize();
236 WHITE_BOX.clearMethodState(method);
237 return result;
238 }
239 }