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 /*
25 * @test MakeMethodNotCompilableTest
26 * @bug 8012322 8006683 8007288 8022832
27 * @summary testing of WB::makeMethodNotCompilable()
28 * @library /testlibrary /test/lib /
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 * @build compiler.whitebox.MakeMethodNotCompilableTest
32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
33 * sun.hotspot.WhiteBox$WhiteBoxPermission
34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
35 * -XX:+WhiteBoxAPI -Xmixed -XX:-UseCounterDecay
36 * compiler.whitebox.MakeMethodNotCompilableTest
37 */
38
39 package compiler.whitebox;
40
41 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
42 private int bci;
43 public static void main(String[] args) throws Exception {
44 String directive =
45 "[{ match:\"*SimpleTestCaseHelper.*\", BackgroundCompilation: false }, " +
46 " { match:\"*.*\", inline:\"-*SimpleTestCaseHelper.*\"}]";
47 if (WHITE_BOX.addCompilerDirective(directive) != 2) {
48 throw new RuntimeException("Could not add directive");
49 }
50 try {
51 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
52 } finally {
53 WHITE_BOX.removeCompilerDirective(2);
54 }
55 }
56
57 private MakeMethodNotCompilableTest(TestCase testCase) {
58 super(testCase);
59 // to prevent inlining of #method
60 WHITE_BOX.testSetDontInlineMethod(method, true);
61 }
62
63 /**
64 * Tests {@code WB::makeMethodNotCompilable()} by calling it before
65 * compilation and checking that method isn't compiled. Also
66 * checks that WB::clearMethodState() clears no-compilable flags. For
67 * tiered, additional checks for all available levels are conducted.
68 *
69 * @throws Exception if one of the checks fails.
70 */
71 @Override
72 protected void test() throws Exception {
73 if (skipXcompOSR()) {
74 return;
75 }
76 checkNotCompiled();
77 if (!isCompilable()) {
78 throw new RuntimeException(method + " must be compilable");
79 }
80
81 bci = getBci();
82
83 if (TIERED_COMPILATION) {
84 final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
85 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
86 testTier(testedTier);
87 }
88 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
89 makeNotCompilable(testedTier);
90 if (isCompilable(testedTier)) {
91 throw new RuntimeException(method
92 + " must be not compilable at level" + testedTier);
93 }
94 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
95 checkNotCompiled();
96
97 if (!isCompilable()) {
98 System.out.println(method
99 + " is not compilable after level " + testedTier);
100 }
101 }
102 } else {
103 compile();
104 checkCompiled();
105 int compLevel = getCompLevel();
106 deoptimize();
107 makeNotCompilable(compLevel);
108 if (isCompilable(COMP_LEVEL_ANY)) {
109 throw new RuntimeException(method
110 + " must be not compilable at CompLevel::CompLevel_any,"
111 + " after it is not compilable at " + compLevel);
112 }
113
114 WHITE_BOX.clearMethodState(method);
115 if (!isCompilable()) {
116 throw new RuntimeException(method
117 + " is not compilable after clearMethodState()");
118 }
119
120 // nocompilable at opposite level must make no sense
121 int oppositeLevel;
122 if (isC1Compile(compLevel)) {
123 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
124 } else {
125 oppositeLevel = COMP_LEVEL_SIMPLE;
126 }
127 makeNotCompilable(oppositeLevel);
128
129 if (!isCompilable(COMP_LEVEL_ANY)) {
130 throw new RuntimeException(method
131 + " must be compilable at CompLevel::CompLevel_any,"
132 + " even it is not compilable at opposite level ["
133 + compLevel + "]");
134 }
135
136 if (!isCompilable(compLevel)) {
137 throw new RuntimeException(method
138 + " must be compilable at level " + compLevel
139 + ", even it is not compilable at opposite level ["
140 + compLevel + "]");
141 }
142 }
143
144 // clearing after tiered/non-tiered tests
145 // WB.clearMethodState() must reset no-compilable flags
146 WHITE_BOX.clearMethodState(method);
147 if (!isCompilable()) {
148 throw new RuntimeException(method
149 + " is not compilable after clearMethodState()");
150 }
151 // Make method not (OSR-)compilable (depending on testCase.isOsr())
152 makeNotCompilable();
153 if (isCompilable()) {
154 throw new RuntimeException(method + " must be not compilable");
155 }
156 // Try to (OSR-)compile method
157 compile();
158 // Method should not be (OSR-)compiled
159 checkNotCompiled(testCase.isOsr());
160 if (isCompilable()) {
161 throw new RuntimeException(method + " must be not compilable");
162 }
163 // WB.clearMethodState() must reset no-compilable flags
164 WHITE_BOX.clearMethodState(method);
165 if (!isCompilable()) {
166 throw new RuntimeException(method
167 + " is not compilable after clearMethodState()");
168 }
169 compile();
170 checkCompiled();
171 }
172
173 // separately tests each tier
174 private void testTier(int testedTier) {
175 if (!isCompilable(testedTier)) {
176 throw new RuntimeException(method
177 + " is not compilable on start");
178 }
179 makeNotCompilable(testedTier);
180
181 // tests for all other tiers
182 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
183 anotherTier < tierLimit; ++anotherTier) {
184 boolean isCompilable = isCompilable(anotherTier);
185 if (sameCompile(testedTier, anotherTier)) {
186 if (isCompilable) {
187 throw new RuntimeException(method
188 + " must be not compilable at level " + anotherTier
189 + ", if it is not compilable at " + testedTier);
190 }
191 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
192 checkNotCompiled();
193 } else {
194 if (!isCompilable) {
195 throw new RuntimeException(method
196 + " must be compilable at level " + anotherTier
197 + ", even if it is not compilable at "
198 + testedTier);
199 }
200 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
201 checkCompiled();
202 deoptimize();
203 }
204
205 if (!isCompilable(COMP_LEVEL_ANY)) {
206 throw new RuntimeException(method
207 + " must be compilable at 'CompLevel::CompLevel_any'"
208 + ", if it is not compilable only at " + testedTier);
209 }
210 }
211
212 // clear state after test
213 WHITE_BOX.clearMethodState(method);
214 if (!isCompilable(testedTier)) {
215 throw new RuntimeException(method
216 + " is not compilable after clearMethodState()");
217 }
218 }
219
220 private boolean sameCompile(int level1, int level2) {
221 if (level1 == level2) {
222 return true;
223 }
224 if (isC1Compile(level1) && isC1Compile(level2)) {
225 return true;
226 }
227 if (isC2Compile(level1) && isC2Compile(level2)) {
228 return true;
229 }
230 return false;
231 }
232
233 private int getBci() throws Exception {
234 compile();
235 checkCompiled();
236 int result = WHITE_BOX.getMethodEntryBci(method);
237 deoptimize();
238 WHITE_BOX.clearMethodState(method);
239 return result;
240 }
241 }