1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8263707
* @summary Test range check for constant array and NewMultiArray is removed properly
* @author Hui Shi
*
* @requires vm.flagless
* @requires vm.debug == true & vm.compiler1.enabled
*
* @library /test/lib
*
* @run driver compiler.c1.TestRangeCheckEliminated
*/
package compiler.c1;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class TestRangeCheckEliminated {
static final String eliminated = "can be fully eliminated";
public static void main(String[] args) throws Throwable {
boolean error = false;
String[] procArgs = new String[] {
"-XX:CompileCommand=compileonly,*test_constant_array::constant_array_rc",
"-XX:TieredStopAtLevel=1",
"-XX:+TraceRangeCheckElimination",
"-XX:-BackgroundCompilation",
"-XX:CompileThreshold=500",
test_constant_array.class.getName()
};
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(procArgs);
String output = new OutputAnalyzer(pb.start()).getOutput();
// should have 2 "can be fully eliminated"
System.out.println(output);
if ((output.split(eliminated, -1).length - 1) == 2) {
System.out.println("test_constant_array pass");
} else {
System.out.println("test_constant_array fail");
error = true;
}
procArgs = new String[] {
"-XX:CompileCommand=compileonly,*test_multi_constant_array::multi_constant_array_rc",
"-XX:TieredStopAtLevel=1",
"-XX:+TraceRangeCheckElimination",
"-XX:-BackgroundCompilation",
"-XX:CompileThreshold=500",
test_multi_constant_array.class.getName()
};
pb = ProcessTools.createLimitedTestJavaProcessBuilder(procArgs);
output = new OutputAnalyzer(pb.start()).getOutput();
// should have 1 "can be fully eliminated"
System.out.println(output);
if ((output.split(eliminated, -1).length - 1) == 1) {
System.out.println("test_multi_constant_array pass");
} else {
System.out.println("test_multi_constant_array fail");
error = true;
}
procArgs = new String[] {
"-XX:CompileCommand=compileonly,*test_multi_new_array::multi_new_array_rc",
"-XX:TieredStopAtLevel=1",
"-XX:+TraceRangeCheckElimination",
"-XX:-BackgroundCompilation",
"-XX:CompileThreshold=500",
test_multi_new_array.class.getName()
};
pb = ProcessTools.createLimitedTestJavaProcessBuilder(procArgs);
output = new OutputAnalyzer(pb.start()).getOutput();
// should have 2 "can be fully eliminated"
System.out.println(output);
if ((output.split(eliminated, -1).length - 1) == 2) {
System.out.println("test_multi_new_array pass");
} else {
System.out.println("test_multi_new_array fail");
error = true;
}
if (error) {
throw new InternalError();
}
}
public static class test_constant_array {
static final int constant_array[] =
{50,60,55,67,70,62,65,70,70,81,72,66,77,80,69};
static void constant_array_rc() {
constant_array[1] += 5;
}
public static void main(String[] args) {
for(int i = 0; i < 1_000; i++) {
constant_array_rc();
}
}
}
public static class test_multi_constant_array {
static final int constant_multi_array[][] = {
{50,60,55,67,70}, {62,65,70,70,81}, {72,66,77,80,69}};
static void multi_constant_array_rc() {
constant_multi_array[2][3] += 5;
}
public static void main(String[] args) {
for(int i = 0; i < 1_000; i++) {
multi_constant_array_rc();
}
}
}
public static class test_multi_new_array {
static void foo(int i) {}
static void multi_new_array_rc(int index) {
int na[] = new int[800];
int nma[][] = new int[600][2];
nma[20][1] += 5; // optimize rc on NewMultiArray first dimension
nma[index][0] = 0; // index < 600 after this statement
foo(na[index]); // index must < 800, remove rc
}
public static void main(String[] args) {
for(int i = 0; i < 600; i++) {
multi_new_array_rc(i);
}
}
}
}
|
