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 * @library /testlibrary /test/lib
28 * @modules java.management
29 * @build MakeMethodNotCompilableTest
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* MakeMethodNotCompilableTest
33 * @summary testing of WB::makeMethodNotCompilable()
34 * @author igor.ignatyev@oracle.com
35 */
36 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
37 private int bci;
38 public static void main(String[] args) throws Exception {
39 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
40 }
41
42 private MakeMethodNotCompilableTest(TestCase testCase) {
43 super(testCase);
44 // to prevent inlining of #method
45 WHITE_BOX.testSetDontInlineMethod(method, true);
46 }
47
48 /**
49 * Tests {@code WB::makeMethodNotCompilable()} by calling it before
50 * compilation and checking that method isn't compiled. Also
51 * checks that WB::clearMethodState() clears no-compilable flags. For
52 * tiered, additional checks for all available levels are conducted.
53 *
54 * @throws Exception if one of the checks fails.
55 */
56 @Override
57 protected void test() throws Exception {
58 if (skipXcompOSR()) {
59 return;
60 }
61 checkNotCompiled();
62 if (!isCompilable()) {
63 throw new RuntimeException(method + " must be compilable");
64 }
65
66 bci = getBci();
67
68 if (TIERED_COMPILATION) {
69 final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
70 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
71 testTier(testedTier);
72 }
73 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
74 makeNotCompilable(testedTier);
75 if (isCompilable(testedTier)) {
76 throw new RuntimeException(method
77 + " must be not compilable at level" + testedTier);
78 }
79 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
80 checkNotCompiled();
81
82 if (!isCompilable()) {
83 System.out.println(method
84 + " is not compilable after level " + testedTier);
85 }
86 }
87 } else {
88 compile();
89 checkCompiled();
90 int compLevel = getCompLevel();
91 deoptimize();
92 makeNotCompilable(compLevel);
93 if (isCompilable(COMP_LEVEL_ANY)) {
94 throw new RuntimeException(method
95 + " must be not compilable at CompLevel::CompLevel_any,"
96 + " after it is not compilable at " + compLevel);
97 }
98
99 WHITE_BOX.clearMethodState(method);
100 if (!isCompilable()) {
101 throw new RuntimeException(method
102 + " is not compilable after clearMethodState()");
103 }
104
105 // nocompilable at opposite level must make no sense
106 int oppositeLevel;
107 if (isC1Compile(compLevel)) {
108 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
109 } else {
110 oppositeLevel = COMP_LEVEL_SIMPLE;
111 }
112 makeNotCompilable(oppositeLevel);
113
114 if (!isCompilable(COMP_LEVEL_ANY)) {
115 throw new RuntimeException(method
116 + " must be compilable at CompLevel::CompLevel_any,"
117 + " even it is not compilable at opposite level ["
118 + compLevel + "]");
119 }
120
121 if (!isCompilable(compLevel)) {
122 throw new RuntimeException(method
123 + " must be compilable at level " + compLevel
124 + ", even it is not compilable at opposite level ["
125 + compLevel + "]");
126 }
127 }
128
129 // clearing after tiered/non-tiered tests
130 // WB.clearMethodState() must reset no-compilable flags
131 WHITE_BOX.clearMethodState(method);
132 if (!isCompilable()) {
133 throw new RuntimeException(method
134 + " is not compilable after clearMethodState()");
135 }
136 // Make method not (OSR-)compilable (depending on testCase.isOsr())
137 makeNotCompilable();
138 if (isCompilable()) {
139 throw new RuntimeException(method + " must be not compilable");
140 }
141 // Try to (OSR-)compile method
142 compile();
143 // Method should not be (OSR-)compiled
144 checkNotCompiled(testCase.isOsr());
145 if (isCompilable()) {
146 throw new RuntimeException(method + " must be not compilable");
147 }
148 // WB.clearMethodState() must reset no-compilable flags
149 WHITE_BOX.clearMethodState(method);
150 if (!isCompilable()) {
151 throw new RuntimeException(method
152 + " is not compilable after clearMethodState()");
153 }
154 compile();
155 checkCompiled();
156 }
157
158 // separately tests each tier
159 private void testTier(int testedTier) {
160 if (!isCompilable(testedTier)) {
161 throw new RuntimeException(method
162 + " is not compilable on start");
163 }
164 makeNotCompilable(testedTier);
165
166 // tests for all other tiers
167 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
168 anotherTier < tierLimit; ++anotherTier) {
169 boolean isCompilable = isCompilable(anotherTier);
170 if (sameCompile(testedTier, anotherTier)) {
171 if (isCompilable) {
172 throw new RuntimeException(method
173 + " must be not compilable at level " + anotherTier
174 + ", if it is not compilable at " + testedTier);
175 }
176 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
177 checkNotCompiled();
178 } else {
179 if (!isCompilable) {
180 throw new RuntimeException(method
181 + " must be compilable at level " + anotherTier
182 + ", even if it is not compilable at "
183 + testedTier);
184 }
185 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
186 checkCompiled();
187 deoptimize();
188 }
189
190 if (!isCompilable(COMP_LEVEL_ANY)) {
191 throw new RuntimeException(method
192 + " must be compilable at 'CompLevel::CompLevel_any'"
193 + ", if it is not compilable only at " + testedTier);
194 }
195 }
196
197 // clear state after test
198 WHITE_BOX.clearMethodState(method);
199 if (!isCompilable(testedTier)) {
200 throw new RuntimeException(method
201 + " is not compilable after clearMethodState()");
202 }
203 }
204
205 private boolean sameCompile(int level1, int level2) {
206 if (level1 == level2) {
207 return true;
208 }
209 if (isC1Compile(level1) && isC1Compile(level2)) {
210 return true;
211 }
212 if (isC2Compile(level1) && isC2Compile(level2)) {
213 return true;
214 }
215 return false;
216 }
217
218 private int getBci() {
219 compile();
220 checkCompiled();
221 int result = WHITE_BOX.getMethodEntryBci(method);
222 deoptimize();
223 WHITE_BOX.clearMethodState(method);
224 return result;
225 }
226 }