Mercurial > jdk8-mips64-public > hotspot / file revision
test/compiler/whitebox/IsMethodCompilableTest.java@f99558245e5c
test/compiler/whitebox/IsMethodCompilableTest.java
Wed, 14 Aug 2013 23:50:23 +0400
- author
- iignatyev
- date
- Wed, 14 Aug 2013 23:50:23 +0400
- changeset 5541
- f99558245e5c
- parent 5512
- 11237ee74aae
- child 5796
- 303826f477c6
- permissions
- -rw-r--r--
8022832: Add WB APIs for OSR compilation
Reviewed-by: kvn
1 /*
2 * Copyright (c) 2013, 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
28 * @build IsMethodCompilableTest
29 * @run main ClassFileInstaller sun.hotspot.WhiteBox
30 * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,TestCase$Helper::* IsMethodCompilableTest
31 * @summary testing of WB::isMethodCompilable()
32 * @author igor.ignatyev@oracle.com
33 */
34 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
35 /**
36 * Value of {@code -XX:PerMethodRecompilationCutoff}
37 */
38 protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
40 static {
41 long tmp = Long.parseLong(
42 getVMOption("PerMethodRecompilationCutoff", "400"));
43 if (tmp == -1) {
44 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
45 } else {
46 PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
47 }
48 }
50 public static void main(String[] args) throws Exception {
51 for (TestCase test : TestCase.values()) {
52 new IsMethodCompilableTest(test).runTest();
53 }
54 }
56 public IsMethodCompilableTest(TestCase testCase) {
57 super(testCase);
58 // to prevent inlining of #method
59 WHITE_BOX.testSetDontInlineMethod(method, true);
60 }
62 /**
63 * Tests {@code WB::isMethodCompilable()} by recompilation of tested method
64 * 'PerMethodRecompilationCutoff' times and checks compilation status. Also
65 * checks that WB::clearMethodState() clears no-compilable flags.
66 *
67 * @throws Exception if one of the checks fails.
68 */
69 @Override
70 protected void test() throws Exception {
71 if (!isCompilable()) {
72 throw new RuntimeException(method + " must be compilable");
73 }
74 System.out.println("PerMethodRecompilationCutoff = "
75 + PER_METHOD_RECOMPILATION_CUTOFF);
76 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
77 System.err.println(
78 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
79 return;
80 }
82 // deoptimize 'PerMethodRecompilationCutoff' times and clear state
83 for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
84 compileAndDeoptimize();
85 }
86 if (!testCase.isOsr && !isCompilable()) {
87 // in osr test case count of deopt maybe more than iterations
88 throw new RuntimeException(method + " is not compilable after "
89 + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");
90 }
91 WHITE_BOX.clearMethodState(method);
93 // deoptimize 'PerMethodRecompilationCutoff' + 1 times
94 long i;
95 for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
96 && isCompilable(); ++i) {
97 compileAndDeoptimize();
98 }
99 if (!testCase.isOsr && i != PER_METHOD_RECOMPILATION_CUTOFF) {
100 // in osr test case count of deopt maybe more than iterations
101 throw new RuntimeException(method + " is not compilable after "
102 + i + " iterations, but must only after "
103 + PER_METHOD_RECOMPILATION_CUTOFF);
104 }
105 if (isCompilable()) {
106 throw new RuntimeException(method + " is still compilable after "
107 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
108 }
109 compile();
110 checkNotCompiled();
112 // WB.clearMethodState() must reset no-compilable flags
113 WHITE_BOX.clearMethodState(method);
114 if (!isCompilable()) {
115 throw new RuntimeException(method
116 + " is not compilable after clearMethodState()");
117 }
118 compile();
119 checkCompiled();
120 }
122 private void compileAndDeoptimize() throws Exception {
123 compile();
124 waitBackgroundCompilation();
125 deoptimize();
126 }
127 }
