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