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.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:+WhiteBoxAPI -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
33 * -server -XX:-TieredCompilation -XX:TypeProfileLevel=020
34 * compiler.profiling.TestTypeProfiling
35 * @run main/othervm -Xbootclasspath/a:. -XX:+WhiteBoxAPI -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
36 * -server -XX:-TieredCompilation -XX:TypeProfileLevel=200
37 * compiler.profiling.TestTypeProfiling
38 */
39
40 package compiler.profiling;
41
42 import jdk.test.lib.Platform;
43 import sun.hotspot.WhiteBox;
44 import compiler.whitebox.CompilerWhiteBoxTest;
45 import java.lang.reflect.Method;
46
47 public class TestTypeProfiling {
48
49 public static int[] mParamTypeCheck(Object in) {
50 try {
51 return (int[]) in;
52 } catch (ClassCastException cce) {
53 return null;
54 }
55 }
56
57 static Object x2(Object src) {
58 return src;
59 }
60
61 public static int[] mRetTypeCheck(Object in) {
62 try {
63 Object out = x2(in);
64 return (int[]) out;
65 } catch (ClassCastException cce) {
66 return null;
67 }
68 }
69
70 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
71 private static final int TIERED_STOP_AT_LEVEL = WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue();
72
73 static boolean deoptimize(Method method, Object src_obj) throws Exception {
74 for (int i = 0; i < 10; i++) {
75 method.invoke(null, src_obj);
76 if (!WHITE_BOX.isMethodCompiled(method)) {
77 return true;
78 }
79 }
80 return false;
81 }
82
83 static public void main(String[] args) throws Exception {
84 if (!Platform.isServer() || Platform.isEmulatedClient()) {
85 throw new Error("TESTBUG: Not server mode");
86 }
87 // Only execute if C2 is available
88 if (TIERED_STOP_AT_LEVEL != CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION) {
89 throw new RuntimeException("please enable C2");
90 }
91
92 Method method;
93 if (WHITE_BOX.getUintxVMFlag("TypeProfileLevel") == 20) {
94 method = TestTypeProfiling.class.getMethod("mRetTypeCheck", Object.class);
95 } else
96 if (WHITE_BOX.getUintxVMFlag("TypeProfileLevel") == 200) {
97 method = TestTypeProfiling.class.getMethod("mParamTypeCheck", Object.class);
98 } else {
99 throw new RuntimeException("please setup method return/params type profilation: -XX:TypeProfileLevel=020/200");
100 }
101
102 int[] src = new int[10];
103 Object src_obj = new Object();
104
105 // Warm up & make sure we collect type profiling
106 for (int i = 0; i < 20000; i++) {
107 mParamTypeCheck(src);
108 mRetTypeCheck(src);
109 }
110
111 // And make sure the method is compiled by C2
112 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
113 if (!WHITE_BOX.isMethodCompiled(method)) {
114 throw new RuntimeException(method.getName() + " is not compiled");
115 }
116
117 // should deoptimize for speculative type check
118 if (!deoptimize(method, src_obj)) {
119 throw new RuntimeException(method.getName() + " is not deoptimized");
120 }
121
122 // compile again
123 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
124 if (!WHITE_BOX.isMethodCompiled(method)) {
125 throw new RuntimeException(method.getName() + " is not recompiled");
126 }
127
128 // should deoptimize for actual type check
129 if (!deoptimize(method, src_obj)) {
130 throw new RuntimeException(method.getName() + " is not deoptimized (should deoptimize for actual type check)");
131 }
132
133 // compile once again
134 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
135 if (!WHITE_BOX.isMethodCompiled(method)) {
136 throw new RuntimeException(method.getName() + " is not recompiled");
137 }
138
139 // this time new parameter type should not force deoptimization
140 if (deoptimize(method, src_obj)) {
141 throw new RuntimeException(method.getName() + " is deoptimized again");
142 }
143 }
144 }