1 /*
2 * Copyright (c) 2013, 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 ClassFileInstaller sun.hotspot.WhiteBox
30 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* MakeMethodNotCompilableTest
31 * @summary testing of WB::makeMethodNotCompilable()
32 * @author igor.ignatyev@oracle.com
33 */
34 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
35 private int bci;
36 public static void main(String[] args) throws Exception {
37 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
38 }
39
40 private MakeMethodNotCompilableTest(TestCase testCase) {
41 super(testCase);
42 // to prevent inlining of #method
43 WHITE_BOX.testSetDontInlineMethod(method, true);
44 }
45
46 /**
47 * Tests {@code WB::makeMethodNotCompilable()} by calling it before
48 * compilation and checking that method isn't compiled. Also
49 * checks that WB::clearMethodState() clears no-compilable flags. For
50 * tiered, additional checks for all available levels are conducted.
51 *
52 * @throws Exception if one of the checks fails.
53 */
54 @Override
55 protected void test() throws Exception {
56 if (skipXcompOSR()) {
57 return;
58 }
59 checkNotCompiled();
60 if (!isCompilable()) {
61 throw new RuntimeException(method + " must be compilable");
62 }
63
64 bci = getBci();
65
66 if (TIERED_COMPILATION) {
67 final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
68 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
69 testTier(testedTier);
70 }
71 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
72 makeNotCompilable(testedTier);
73 if (isCompilable(testedTier)) {
74 throw new RuntimeException(method
75 + " must be not compilable at level" + testedTier);
76 }
77 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
78 checkNotCompiled();
79
80 if (!isCompilable()) {
81 System.out.println(method
82 + " is not compilable after level " + testedTier);
83 }
84 }
85 } else {
86 compile();
87 checkCompiled();
88 int compLevel = getCompLevel();
89 deoptimize();
90 makeNotCompilable(compLevel);
91 if (isCompilable(COMP_LEVEL_ANY)) {
92 throw new RuntimeException(method
93 + " must be not compilable at CompLevel::CompLevel_any,"
94 + " after it is not compilable at " + compLevel);
95 }
96
97 WHITE_BOX.clearMethodState(method);
98 if (!isCompilable()) {
99 throw new RuntimeException(method
100 + " is not compilable after clearMethodState()");
101 }
102
103 // nocompilable at opposite level must make no sense
104 int oppositeLevel;
105 if (isC1Compile(compLevel)) {
106 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
107 } else {
108 oppositeLevel = COMP_LEVEL_SIMPLE;
109 }
110 makeNotCompilable(oppositeLevel);
111
112 if (!isCompilable(COMP_LEVEL_ANY)) {
113 throw new RuntimeException(method
114 + " must be compilable at CompLevel::CompLevel_any,"
115 + " even it is not compilable at opposite level ["
116 + compLevel + "]");
117 }
118
119 if (!isCompilable(compLevel)) {
120 throw new RuntimeException(method
121 + " must be compilable at level " + compLevel
122 + ", even it is not compilable at opposite level ["
123 + compLevel + "]");
124 }
125 }
126
127 // clearing after tiered/non-tiered tests
128 // WB.clearMethodState() must reset no-compilable flags
129 WHITE_BOX.clearMethodState(method);
130 if (!isCompilable()) {
131 throw new RuntimeException(method
132 + " is not compilable after clearMethodState()");
133 }
134
135 makeNotCompilable();
136 if (isCompilable()) {
137 throw new RuntimeException(method + " must be not compilable");
138 }
139
140 compile();
141 checkNotCompiled();
142 if (isCompilable()) {
143 throw new RuntimeException(method + " must be not compilable");
144 }
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 compile();
152 checkCompiled();
153 }
154
155 // separately tests each tier
156 private void testTier(int testedTier) {
157 if (!isCompilable(testedTier)) {
158 throw new RuntimeException(method
159 + " is not compilable on start");
160 }
161 makeNotCompilable(testedTier);
162
163 // tests for all other tiers
164 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
165 anotherTier < tierLimit; ++anotherTier) {
166 boolean isCompilable = isCompilable(anotherTier);
167 if (sameCompile(testedTier, anotherTier)) {
168 if (isCompilable) {
169 throw new RuntimeException(method
170 + " must be not compilable at level " + anotherTier
171 + ", if it is not compilable at " + testedTier);
172 }
173 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
174 checkNotCompiled();
175 } else {
176 if (!isCompilable) {
177 throw new RuntimeException(method
178 + " must be compilable at level " + anotherTier
179 + ", even if it is not compilable at "
180 + testedTier);
181 }
182 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
183 checkCompiled();
184 deoptimize();
185 }
186
187 if (!isCompilable(COMP_LEVEL_ANY)) {
188 throw new RuntimeException(method
189 + " must be compilable at 'CompLevel::CompLevel_any'"
190 + ", if it is not compilable only at " + testedTier);
191 }
192 }
193
194 // clear state after test
195 WHITE_BOX.clearMethodState(method);
196 if (!isCompilable(testedTier)) {
197 throw new RuntimeException(method
198 + " is not compilable after clearMethodState()");
199 }
200 }
201
202 private boolean sameCompile(int level1, int level2) {
203 if (level1 == level2) {
204 return true;
205 }
206 if (isC1Compile(level1) && isC1Compile(level2)) {
207 return true;
208 }
209 if (isC2Compile(level1) && isC2Compile(level2)) {
210 return true;
211 }
212 return false;
213 }
214
215 private int getBci() {
216 compile();
217 checkCompiled();
218 int result = WHITE_BOX.getMethodEntryBci(method);
219 deoptimize();
220 WHITE_BOX.clearMethodState(method);
221 return result;
222 }
223 }