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 * @ignore 8046268
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
137 makeNotCompilable();
138 if (isCompilable()) {
139 throw new RuntimeException(method + " must be not compilable");
140 }
141
142 compile();
143 checkNotCompiled();
144 if (isCompilable()) {
145 throw new RuntimeException(method + " must be not compilable");
146 }
147 // WB.clearMethodState() must reset no-compilable flags
148 WHITE_BOX.clearMethodState(method);
149 if (!isCompilable()) {
150 throw new RuntimeException(method
151 + " is not compilable after clearMethodState()");
152 }
153 compile();
154 checkCompiled();
155 }
156
157 // separately tests each tier
158 private void testTier(int testedTier) {
159 if (!isCompilable(testedTier)) {
160 throw new RuntimeException(method
161 + " is not compilable on start");
162 }
163 makeNotCompilable(testedTier);
164
165 // tests for all other tiers
166 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
167 anotherTier < tierLimit; ++anotherTier) {
168 boolean isCompilable = isCompilable(anotherTier);
169 if (sameCompile(testedTier, anotherTier)) {
170 if (isCompilable) {
171 throw new RuntimeException(method
172 + " must be not compilable at level " + anotherTier
173 + ", if it is not compilable at " + testedTier);
174 }
175 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
176 checkNotCompiled();
177 } else {
178 if (!isCompilable) {
179 throw new RuntimeException(method
180 + " must be compilable at level " + anotherTier
181 + ", even if it is not compilable at "
182 + testedTier);
183 }
184 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
185 checkCompiled();
186 deoptimize();
187 }
188
189 if (!isCompilable(COMP_LEVEL_ANY)) {
190 throw new RuntimeException(method
191 + " must be compilable at 'CompLevel::CompLevel_any'"
192 + ", if it is not compilable only at " + testedTier);
193 }
194 }
195
196 // clear state after test
197 WHITE_BOX.clearMethodState(method);
198 if (!isCompilable(testedTier)) {
199 throw new RuntimeException(method
200 + " is not compilable after clearMethodState()");
201 }
202 }
203
204 private boolean sameCompile(int level1, int level2) {
205 if (level1 == level2) {
206 return true;
207 }
208 if (isC1Compile(level1) && isC1Compile(level2)) {
209 return true;
210 }
211 if (isC2Compile(level1) && isC2Compile(level2)) {
212 return true;
213 }
214 return false;
215 }
216
217 private int getBci() {
218 compile();
219 checkCompiled();
220 int result = WHITE_BOX.getMethodEntryBci(method);
221 deoptimize();
222 WHITE_BOX.clearMethodState(method);
223 return result;
224 }
225 }