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
|
/*
* Copyright (c) 2022, 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.
*/
package compiler.c2.irTests;
import jdk.test.lib.Asserts;
import compiler.lib.ir_framework.*;
/*
* @test
* @bug 8297384
* @summary Test that Ideal transformations of RotateLeftNode* are being performed as expected.
* @library /test/lib /
* @run driver compiler.c2.irTests.RotateLeftNodeIntIdealizationTests
* @requires os.arch == "x86_64" | os.arch == "aarch64" | (os.arch == "riscv64" & vm.cpu.features ~= ".*zbb.*")
*/
public class RotateLeftNodeIntIdealizationTests {
public static void main(String[] args) {
TestFramework.run();
}
@Run(test = { "test1" })
public void runMethod() {
int a = RunInfo.getRandom().nextInt();
int min = Integer.MIN_VALUE;
int max = Integer.MAX_VALUE;
assertResult(0);
assertResult(a);
assertResult(min);
assertResult(max);
}
@DontCompile
public void assertResult(int a) {
Asserts.assertEQ(Integer.rotateLeft(a, 2022), test1(a));
}
@Test
@IR(failOn = { IRNode.ROTATE_LEFT })
@IR(counts = { IRNode.ROTATE_RIGHT, "1" })
// Checks Integer.rotateLeft(x, 2022) => Integer.rotateRight(x, C) where C = 32 - (2022 & 31)
public int test1(int x) {
return Integer.rotateLeft(x, 2022);
}
}
|
