Mercurial > jdk8-mips64-public > hotspot / file revision
test/compiler/whitebox/IsMethodCompilableTest.java@e5d5e7922283
test/compiler/whitebox/IsMethodCompilableTest.java
Mon, 09 Jun 2014 10:32:49 +0200
- author
- neliasso
- date
- Mon, 09 Jun 2014 10:32:49 +0200
- changeset 6725
- e5d5e7922283
- parent 6612
- 5e6f84e7a942
- child 6876
- 710a3c8b516e
- child 7365
- 600c44255e5f
- permissions
- -rw-r--r--
8040244: compiler/whitebox/IsMethodCompilableTest.java fails
Summary: Prevent from running with Xcomp
Reviewed-by: kvn, twisti
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 */
24 /*
25 * @test IsMethodCompilableTest
26 * @bug 8007270 8006683 8007288 8022832
27 * @library /testlibrary /testlibrary/whitebox /testlibrary/com/oracle/java/testlibrary
28 * @build IsMethodCompilableTest
29 * @run main ClassFileInstaller sun.hotspot.WhiteBox
30 * @run main ClassFileInstaller com.oracle.java.testlibrary.Platform
31 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:PerMethodRecompilationCutoff=3 -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* IsMethodCompilableTest
32 * @summary testing of WB::isMethodCompilable()
33 * @author igor.ignatyev@oracle.com
34 */
36 import com.oracle.java.testlibrary.Platform;
38 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
39 /**
40 * Value of {@code -XX:PerMethodRecompilationCutoff}
41 */
42 protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
44 static {
45 long tmp = Long.parseLong(
46 getVMOption("PerMethodRecompilationCutoff", "400"));
47 if (tmp == -1) {
48 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
49 } else {
50 PER_METHOD_RECOMPILATION_CUTOFF = (0xFFFFFFFFL & tmp);
51 }
52 }
54 public static void main(String[] args) throws Exception {
55 CompilerWhiteBoxTest.main(IsMethodCompilableTest::new, args);
56 }
58 private IsMethodCompilableTest(TestCase testCase) {
59 super(testCase);
60 // to prevent inlining of #method
61 WHITE_BOX.testSetDontInlineMethod(method, true);
62 }
64 /**
65 * Tests {@code WB::isMethodCompilable()} by recompilation of tested method
66 * 'PerMethodRecompilationCutoff' times and checks compilation status. Also
67 * checks that WB::clearMethodState() clears no-compilable flags. Only
68 * applicable to c2 compiled methods.
69 *
70 * @throws Exception if one of the checks fails.
71 */
72 @Override
73 protected void test() throws Exception {
74 // Only c2 compilations can be disabled through PerMethodRecompilationCutoff
75 if (!Platform.isServer()) {
76 return;
77 }
79 if (skipXcompOSR()) {
80 return;
81 }
82 if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
83 throw new RuntimeException(method + " must be compilable");
84 }
85 System.out.println("PerMethodRecompilationCutoff = "
86 + PER_METHOD_RECOMPILATION_CUTOFF);
87 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
88 System.err.println(
89 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
90 return;
91 }
93 // deoptimize 'PerMethodRecompilationCutoff' times
94 for (long attempts = 0, successes = 0;
95 (successes < PER_METHOD_RECOMPILATION_CUTOFF) &&
96 (attempts < PER_METHOD_RECOMPILATION_CUTOFF*2) &&
97 isCompilable(COMP_LEVEL_FULL_OPTIMIZATION); attempts++) {
98 if (compileAndDeoptimize() == COMP_LEVEL_FULL_OPTIMIZATION) {
99 successes++;
100 }
101 }
103 if (!testCase.isOsr() && !isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
104 // in osr test case count of deopt maybe more than iterations
105 throw new RuntimeException(method + " is not compilable after "
106 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
107 }
109 // Now compile once more
110 compileAndDeoptimize();
112 if (isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
113 throw new RuntimeException(method + " is still compilable after "
114 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
115 }
116 checkNotCompiled();
117 compile();
118 waitBackgroundCompilation();
119 checkNotCompiled(COMP_LEVEL_FULL_OPTIMIZATION);
121 // WB.clearMethodState() must reset no-compilable flags
122 WHITE_BOX.clearMethodState(method);
123 if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
124 throw new RuntimeException(method
125 + " is not compilable after clearMethodState()");
126 }
127 compile();
128 checkCompiled();
129 }
131 private int compileAndDeoptimize() throws Exception {
132 compile();
133 waitBackgroundCompilation();
134 int compLevel = getCompLevel();
135 deoptimize();
136 return compLevel;
137 }
138 }
