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comparison test/compiler/whitebox/IsMethodCompilableTest.java @ 8051:12e01444ca2d

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8006683: Add WhiteBox API to testing of compiler Reviewed-by: kvn, vlivanov
author iignatyev
date Wed, 13 Feb 2013 08:29:04 -0800
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children 1b0dc9f87e75
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8050:aaad39923cdb 8051:12e01444ca2d
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 */
23
24 /*
25 * @test IsMethodCompilableTest
26 * @bug 8007270
27 * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI CompilerWhiteBoxTest.java
28 * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI IsMethodCompilableTest.java
29 * @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
30 * @author igor.ignatyev@oracle.com
31 */
32 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
33 protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
34
35 static {
36 long tmp = Long.parseLong(
37 getVMOption("PerMethodRecompilationCutoff", "400"));
38 if (tmp == -1) {
39 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
40 } else {
41 PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
42 }
43 }
44
45 public static void main(String[] args) throws Exception {
46 new IsMethodCompilableTest().runTest();
47 }
48
49 protected void test() throws Exception {
50 if (!WHITE_BOX.isMethodCompilable(METHOD)) {
51 throw new RuntimeException(METHOD + " must be compilable");
52 }
53 System.out.println("PerMethodRecompilationCutoff = "
54 + PER_METHOD_RECOMPILATION_CUTOFF);
55 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
56 System.err.println(
57 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
58 return;
59 }
60 // to prevent inlining #method into #compile()
61 WHITE_BOX.setDontInlineMethod(METHOD, true);
62 boolean madeNotCompilable = false;
63
64 for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
65 compile();
66 waitBackgroundCompilation(METHOD);
67 WHITE_BOX.deoptimizeMethod(METHOD);
68 if (!WHITE_BOX.isMethodCompilable(METHOD)) {
69 madeNotCompilable = true;
70 break;
71 }
72 }
73 if (!madeNotCompilable) {
74 throw new RuntimeException(METHOD + " is still compilable after "
75 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
76 }
77 compile();
78 if (WHITE_BOX.isMethodCompiled(METHOD)) {
79 printInfo(METHOD);
80 throw new RuntimeException(
81 METHOD + " is not compilable but compiled");
82 }
83 }
84 }