1 /*
2 * Copyright (c) 2018, 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 8189439
27 * @summary Parameters type profiling is not performed from aarch64 interpreter
28 * @requires vm.flavor == "server" & vm.compMode == "Xmixed" & !vm.emulatedClient & !vm.graal.enabled
29 * @library /test/lib /
30 * @build sun.hotspot.WhiteBox
31 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
33 * -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
34 * -XX:CompileThreshold=10000
35 * -server -XX:-TieredCompilation -XX:TypeProfileLevel=020
36 * compiler.profiling.TestTypeProfiling
37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
38 * -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
39 * -XX:CompileThreshold=10000
40 * -server -XX:-TieredCompilation -XX:TypeProfileLevel=200
41 * compiler.profiling.TestTypeProfiling
42 */
43
44 package compiler.profiling;
45
46 import jdk.test.lib.Platform;
47 import sun.hotspot.WhiteBox;
48 import compiler.whitebox.CompilerWhiteBoxTest;
49 import java.lang.reflect.Method;
50
51 public class TestTypeProfiling {
52
53 public static int[] mParamTypeCheck(Object in) {
54 try {
55 return (int[]) in;
56 } catch (ClassCastException cce) {
57 return null;
58 }
59 }
60
61 static Object x2(Object src) {
62 return src;
63 }
64
65 public static int[] mRetTypeCheck(Object in) {
66 try {
67 Object out = x2(in);
68 return (int[]) out;
69 } catch (ClassCastException cce) {
70 return null;
71 }
72 }
73
74 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
75 private static final int TIERED_STOP_AT_LEVEL = WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue();
76
77 static boolean deoptimize(Method method, Object src_obj) throws Exception {
78 for (int i = 0; i < 10; i++) {
79 method.invoke(null, src_obj);
80 if (!WHITE_BOX.isMethodCompiled(method)) {
81 return true;
82 }
83 }
84 return false;
85 }
86
87 static public void main(String[] args) throws Exception {
88 if (!Platform.isServer() || Platform.isEmulatedClient()) {
89 throw new Error("TESTBUG: Not server mode");
90 }
91 // Only execute if C2 is available
92 if (TIERED_STOP_AT_LEVEL != CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION) {
93 throw new RuntimeException("please enable C2");
94 }
95
96 Method method;
97 if (WHITE_BOX.getUintxVMFlag("TypeProfileLevel") == 20) {
98 method = TestTypeProfiling.class.getMethod("mRetTypeCheck", Object.class);
99 } else
100 if (WHITE_BOX.getUintxVMFlag("TypeProfileLevel") == 200) {
101 method = TestTypeProfiling.class.getMethod("mParamTypeCheck", Object.class);
102 } else {
103 throw new RuntimeException("please setup method return/params type profilation: -XX:TypeProfileLevel=020/200");
104 }
105
106 int[] src = new int[10];
107 Object src_obj = new Object();
108
109 // Warm up & make sure we collect type profiling
110 for (int i = 0; i < 20000; i++) {
111 mParamTypeCheck(src);
112 mRetTypeCheck(src);
113 }
114
115 // And make sure the method is compiled by C2
116 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
117 if (!WHITE_BOX.isMethodCompiled(method)) {
118 throw new RuntimeException(method.getName() + " is not compiled");
119 }
120
121 // should deoptimize for speculative type check
122 // Intepreter will also add actual type check trap information into MDO
123 // when it throw ClassCastException
124 if (!deoptimize(method, src_obj)) {
125 throw new RuntimeException(method.getName() + " is not deoptimized");
126 }
127
128 // compile again
129 // c2 will generate throw instead of uncommon trap because
130 // actual type check trap information is present in MDO
131 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
132 if (!WHITE_BOX.isMethodCompiled(method)) {
133 throw new RuntimeException(method.getName() + " is not recompiled");
134 }
135
136 // this time new parameter type should not force deoptimization
137 if (deoptimize(method, src_obj)) {
138 throw new RuntimeException(method.getName() + " is deoptimized again");
139 }
140 }
141 }