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
|
/*
* Copyright (c) 2025, Arm Limited. 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 compiler.lib.ir_framework.*;
import jdk.incubator.vector.Float16;
import static jdk.incubator.vector.Float16.*;
import java.util.Random;
import jdk.test.lib.Asserts;
/*
* @test
* @bug 8336406
* @summary Test that Ideal transformations of MulHFNode are being performed as expected.
* @modules jdk.incubator.vector
* @library /test/lib /
* @run driver compiler.c2.irTests.MulHFNodeIdealizationTests
*/
public class MulHFNodeIdealizationTests {
private Float16 src;
private Float16 dst;
private Random rng;
public static void main(String[] args) {
TestFramework.runWithFlags("--add-modules=jdk.incubator.vector");
}
public MulHFNodeIdealizationTests() {
rng = new Random(25);
src = valueOf(rng.nextFloat());
dst = valueOf(rng.nextFloat());
}
@Test
@Warmup(value = 10000)
@IR(counts = {IRNode.ADD_HF, "1"},
applyIfCPUFeatureOr = {"avx512_fp16", "true", "zfh", "true"},
failOn = {IRNode.MUL_HF})
@IR(counts = {IRNode.ADD_HF, "1"},
applyIfCPUFeatureAnd = {"fphp", "true", "asimdhp", "true"},
failOn = {IRNode.MUL_HF})
// Test if x * 2 is optimized to x + x
public void test1() {
dst = multiply(src, valueOf(2.0f));
}
@Check(test="test1")
public void checkTest1() {
Float16 expected = valueOf(src.floatValue() * 2.0f);
if (float16ToRawShortBits(expected) != float16ToRawShortBits(dst)) {
throw new RuntimeException("Invalid result: dst = " + float16ToRawShortBits(dst) + " != " + float16ToRawShortBits(expected));
}
}
}
|
