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 import compiler.whitebox.CompilerWhiteBoxTest;
25
26 /*
27 * @test MakeMethodNotCompilableTest
28 * @bug 8012322 8006683 8007288 8022832
29 * @library /testlibrary /../../test/lib /
30 * @modules java.management
31 * @build MakeMethodNotCompilableTest
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * sun.hotspot.WhiteBox$WhiteBoxPermission
34 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCase$Helper::* MakeMethodNotCompilableTest
35 * @summary testing of WB::makeMethodNotCompilable()
36 * @author igor.ignatyev@oracle.com
37 */
38 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
39 private int bci;
40 public static void main(String[] args) throws Exception {
41 CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
42 }
43
44 private MakeMethodNotCompilableTest(TestCase testCase) {
45 super(testCase);
46 // to prevent inlining of #method
47 WHITE_BOX.testSetDontInlineMethod(method, true);
48 }
49
50 /**
51 * Tests {@code WB::makeMethodNotCompilable()} by calling it before
52 * compilation and checking that method isn't compiled. Also
53 * checks that WB::clearMethodState() clears no-compilable flags. For
54 * tiered, additional checks for all available levels are conducted.
55 *
56 * @throws Exception if one of the checks fails.
57 */
58 @Override
59 protected void test() throws Exception {
60 if (skipXcompOSR()) {
61 return;
62 }
63 checkNotCompiled();
64 if (!isCompilable()) {
65 throw new RuntimeException(method + " must be compilable");
66 }
67
68 bci = getBci();
69
70 if (TIERED_COMPILATION) {
71 final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
72 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
73 testTier(testedTier);
74 }
75 for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
76 makeNotCompilable(testedTier);
77 if (isCompilable(testedTier)) {
78 throw new RuntimeException(method
79 + " must be not compilable at level" + testedTier);
80 }
81 WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
82 checkNotCompiled();
83
84 if (!isCompilable()) {
85 System.out.println(method
86 + " is not compilable after level " + testedTier);
87 }
88 }
89 } else {
90 compile();
91 checkCompiled();
92 int compLevel = getCompLevel();
93 deoptimize();
94 makeNotCompilable(compLevel);
95 if (isCompilable(COMP_LEVEL_ANY)) {
96 throw new RuntimeException(method
97 + " must be not compilable at CompLevel::CompLevel_any,"
98 + " after it is not compilable at " + compLevel);
99 }
100
101 WHITE_BOX.clearMethodState(method);
102 if (!isCompilable()) {
103 throw new RuntimeException(method
104 + " is not compilable after clearMethodState()");
105 }
106
107 // nocompilable at opposite level must make no sense
108 int oppositeLevel;
109 if (isC1Compile(compLevel)) {
110 oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
111 } else {
112 oppositeLevel = COMP_LEVEL_SIMPLE;
113 }
114 makeNotCompilable(oppositeLevel);
115
116 if (!isCompilable(COMP_LEVEL_ANY)) {
117 throw new RuntimeException(method
118 + " must be compilable at CompLevel::CompLevel_any,"
119 + " even it is not compilable at opposite level ["
120 + compLevel + "]");
121 }
122
123 if (!isCompilable(compLevel)) {
124 throw new RuntimeException(method
125 + " must be compilable at level " + compLevel
126 + ", even it is not compilable at opposite level ["
127 + compLevel + "]");
128 }
129 }
130
131 // clearing after tiered/non-tiered tests
132 // WB.clearMethodState() must reset no-compilable flags
133 WHITE_BOX.clearMethodState(method);
134 if (!isCompilable()) {
135 throw new RuntimeException(method
136 + " is not compilable after clearMethodState()");
137 }
138 // Make method not (OSR-)compilable (depending on testCase.isOsr())
139 makeNotCompilable();
140 if (isCompilable()) {
141 throw new RuntimeException(method + " must be not compilable");
142 }
143 // Try to (OSR-)compile method
144 compile();
145 // Method should not be (OSR-)compiled
146 checkNotCompiled(testCase.isOsr());
147 if (isCompilable()) {
148 throw new RuntimeException(method + " must be not compilable");
149 }
150 // WB.clearMethodState() must reset no-compilable flags
151 WHITE_BOX.clearMethodState(method);
152 if (!isCompilable()) {
153 throw new RuntimeException(method
154 + " is not compilable after clearMethodState()");
155 }
156 compile();
157 checkCompiled();
158 }
159
160 // separately tests each tier
161 private void testTier(int testedTier) {
162 if (!isCompilable(testedTier)) {
163 throw new RuntimeException(method
164 + " is not compilable on start");
165 }
166 makeNotCompilable(testedTier);
167
168 // tests for all other tiers
169 for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
170 anotherTier < tierLimit; ++anotherTier) {
171 boolean isCompilable = isCompilable(anotherTier);
172 if (sameCompile(testedTier, anotherTier)) {
173 if (isCompilable) {
174 throw new RuntimeException(method
175 + " must be not compilable at level " + anotherTier
176 + ", if it is not compilable at " + testedTier);
177 }
178 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
179 checkNotCompiled();
180 } else {
181 if (!isCompilable) {
182 throw new RuntimeException(method
183 + " must be compilable at level " + anotherTier
184 + ", even if it is not compilable at "
185 + testedTier);
186 }
187 WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
188 checkCompiled();
189 deoptimize();
190 }
191
192 if (!isCompilable(COMP_LEVEL_ANY)) {
193 throw new RuntimeException(method
194 + " must be compilable at 'CompLevel::CompLevel_any'"
195 + ", if it is not compilable only at " + testedTier);
196 }
197 }
198
199 // clear state after test
200 WHITE_BOX.clearMethodState(method);
201 if (!isCompilable(testedTier)) {
202 throw new RuntimeException(method
203 + " is not compilable after clearMethodState()");
204 }
205 }
206
207 private boolean sameCompile(int level1, int level2) {
208 if (level1 == level2) {
209 return true;
210 }
211 if (isC1Compile(level1) && isC1Compile(level2)) {
212 return true;
213 }
214 if (isC2Compile(level1) && isC2Compile(level2)) {
215 return true;
216 }
217 return false;
218 }
219
220 private int getBci() {
221 compile();
222 checkCompiled();
223 int result = WHITE_BOX.getMethodEntryBci(method);
224 deoptimize();
225 WHITE_BOX.clearMethodState(method);
226 return result;
227 }
228 }