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comparison test/compiler/profiling/TestUnexpectedProfilingMismatch.java @ 13078:e6ba215af802

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8027631: "unexpected profiling mismatch" error with new type profiling Summary: inlined method handle calls can call methods with different signatures Reviewed-by: kvn, iveresov
author roland
date Wed, 13 Nov 2013 09:45:58 +0100
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13075:144b23411b51 13078:e6ba215af802
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
26 * @bug 8027631
27 * @summary profiling of arguments at calls cannot rely on signature of callee for types
28 * @run main/othervm -XX:-BackgroundCompilation -XX:TieredStopAtLevel=3 -XX:TypeProfileLevel=111 -XX:Tier3InvocationThreshold=200 -XX:Tier0InvokeNotifyFreqLog=7 TestUnexpectedProfilingMismatch
29 *
30 */
31
32 import java.lang.invoke.*;
33
34 public class TestUnexpectedProfilingMismatch {
35
36 static class A {
37 }
38
39 static class B {
40 }
41
42 static void mA(A a) {
43 }
44
45 static void mB(B b) {
46 }
47
48 static final MethodHandle mhA;
49 static final MethodHandle mhB;
50 static {
51 MethodHandles.Lookup lookup = MethodHandles.lookup();
52 MethodType mt = MethodType.methodType(void.class, A.class);
53 MethodHandle res = null;
54 try {
55 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mA", mt);
56 } catch(NoSuchMethodException ex) {
57 } catch(IllegalAccessException ex) {
58 }
59 mhA = res;
60 mt = MethodType.methodType(void.class, B.class);
61 try {
62 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mB", mt);
63 } catch(NoSuchMethodException ex) {
64 } catch(IllegalAccessException ex) {
65 }
66 mhB = res;
67 }
68
69 void m1(A a, boolean doit) throws Throwable {
70 if (doit) {
71 mhA.invoke(a);
72 }
73 }
74
75 void m2(B b) throws Throwable {
76 mhB.invoke(b);
77 }
78
79 static public void main(String[] args) {
80 TestUnexpectedProfilingMismatch tih = new TestUnexpectedProfilingMismatch();
81 A a = new A();
82 B b = new B();
83 try {
84 for (int i = 0; i < 256 - 1; i++) {
85 tih.m1(a, true);
86 }
87 // Will trigger the compilation but will also run once
88 // more interpreted with a non null MDO which it will
89 // update. Make it skip the body of the method.
90 tih.m1(a, false);
91 // Compile this one as well and do the profiling
92 for (int i = 0; i < 256; i++) {
93 tih.m2(b);
94 }
95 // Will run and see a conflict
96 tih.m1(a, true);
97 } catch(Throwable ex) {
98 ex.printStackTrace();
99 }
100 System.out.println("TEST PASSED");
101 }
102 }