Mercurial > hg > graal-jvmci-8
comparison test/compiler/whitebox/DeoptimizeMultipleOSRTest.java @ 20611:3c87c13918fb
8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
Summary: Fixed Whitebox.deoptimizeMethod() to deoptimize all OSR versions of the method.
Reviewed-by: kvn, iignatyev
author | thartmann |
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date | Thu, 30 Oct 2014 13:03:30 +0100 |
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20610:d4562805b030 | 20611:3c87c13918fb |
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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 import sun.hotspot.WhiteBox; | |
25 import java.lang.reflect.Executable; | |
26 import java.lang.reflect.Method; | |
27 | |
28 /* | |
29 * @test DeoptimizeMultipleOSRTest | |
30 * @bug 8061817 | |
31 * @library /testlibrary /testlibrary/whitebox | |
32 * @build DeoptimizeMultipleOSRTest | |
33 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
34 * sun.hotspot.WhiteBox$WhiteBoxPermission | |
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,DeoptimizeMultipleOSRTest::triggerOSR DeoptimizeMultipleOSRTest | |
36 * @summary testing of WB::deoptimizeMethod() | |
37 */ | |
38 public class DeoptimizeMultipleOSRTest { | |
39 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); | |
40 private static final long BACKEDGE_THRESHOLD = 150000; | |
41 private Method method; | |
42 private int counter = 0; | |
43 | |
44 public static void main(String[] args) throws Exception { | |
45 DeoptimizeMultipleOSRTest test = new DeoptimizeMultipleOSRTest(); | |
46 test.test(); | |
47 } | |
48 | |
49 /** | |
50 * Triggers two different OSR compilations for the same method and | |
51 * checks if WhiteBox.deoptimizeMethod() deoptimizes both. | |
52 * | |
53 * @throws Exception | |
54 */ | |
55 public void test() throws Exception { | |
56 method = DeoptimizeMultipleOSRTest.class.getDeclaredMethod("triggerOSR", boolean.class, long.class); | |
57 // Trigger two OSR compiled versions | |
58 triggerOSR(true, BACKEDGE_THRESHOLD); | |
59 triggerOSR(false, BACKEDGE_THRESHOLD); | |
60 // Wait for compilation | |
61 CompilerWhiteBoxTest.waitBackgroundCompilation(method); | |
62 // Deoptimize | |
63 WHITE_BOX.deoptimizeMethod(method, true); | |
64 if (WHITE_BOX.isMethodCompiled(method, true)) { | |
65 throw new AssertionError("Not all OSR compiled versions were deoptimized"); | |
66 } | |
67 } | |
68 | |
69 /** | |
70 * Triggers OSR compilations by executing loops. | |
71 * | |
72 * @param first Determines which loop to execute | |
73 * @param limit The number of loop iterations | |
74 */ | |
75 public void triggerOSR(boolean first, long limit) { | |
76 if (limit != 1) { | |
77 // Warmup method to avoid uncommon traps | |
78 for (int i = 0; i < limit; ++i) { | |
79 triggerOSR(first, 1); | |
80 } | |
81 CompilerWhiteBoxTest.waitBackgroundCompilation(method); | |
82 } | |
83 if (first) { | |
84 // Trigger OSR compilation 1 | |
85 for (int i = 0; i < limit; ++i) { | |
86 counter++; | |
87 } | |
88 } else { | |
89 // Trigger OSR compilation 2 | |
90 for (int i = 0; i < limit; ++i) { | |
91 counter++; | |
92 } | |
93 } | |
94 } | |
95 } |