1 /*
 2  * Copyright (c) 2024, 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.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
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24  */
25 package hat.backend.ffi;
26 
27 import java.lang.reflect.Method;
28 import jdk.incubator.code.Op;
29 import jdk.incubator.code.dialect.core.CoreOp;
30 import jdk.incubator.code.CodeReflection;
31 
32 
33 public class TestIt {
34 
35         @CodeReflection
36         public static void matrixMultiply(float[] a, float[] b, float[] c, int size) {
37             for (int i = 0; i < size; i++) {
38                 for (int j = 0; j < size; j++) {
39                     float sum = 0f;
40                     for (int k = 0; k < size; k++) {
41                         sum += a[i * size + k] * b[k * size + j];
42                     }
43                     c[i * size + j] = sum;
44                 }
45             }
46         }
47 
48 
49         static public void main(String[] args) throws Exception {
50             String methodName = "matrixMultiply";
51             Method method = TestIt.class.getDeclaredMethod(methodName, float[].class, float[].class, float[].class, int.class);
52 
53             CoreOp.FuncOp javaFunc = Op.ofMethod(method).get();
54 
55             // convert the kernel javaFunc to a mock backend compatible
56         }
57 }
58