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
|
/*
* Copyright (c) 2015, 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 8131969
* @summary assert in register allocation code when vector Phi for a loop is
* processed because code assumes all inputs already processed
*
* @run main/othervm -Xbatch compiler.regalloc.TestVectorRegAlloc
*/
package compiler.regalloc;
public class TestVectorRegAlloc {
static int test_helper_i;
static boolean test_helper() {
test_helper_i++;
return (test_helper_i & 7) != 0;
}
static void test(double[] src, double[] dst, boolean flag) {
double j = 0.0;
while(test_helper()) {
for (int i = 0; i < src.length; i++) {
dst[i] = src[i] + j;
}
// Loop will be unswitched and ReplicateD of zero will be
// split through the Phi of outer loop
for (int i = 0; i < src.length; i++) {
double k;
if (flag) {
k = j;
} else {
k = 0;
}
dst[i] = src[i] + k;
}
j++;
}
}
static public void main(String[] args) {
double[] src = new double[10];
double[] dst = new double[10];
for (int i = 0; i < 20000; i++) {
test(src, dst, (i % 2) == 0);
}
}
}
|
