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
23  * questions.
24  */
25 
26 /*
27  * @test
28  * @modules jdk.incubator.code
29  * @run main TestAnfBasicFuns
30  */
31 
32 import jdk.incubator.code.CodeReflection;
33 import jdk.incubator.code.Op;
34 import jdk.incubator.code.OpTransformer;
35 import jdk.incubator.code.analysis.NormalizeBlocksTransformer;
36 import jdk.incubator.code.analysis.SSA;
37 import jdk.incubator.code.dialect.core.CoreOp;
38 
39 import java.lang.reflect.Method;
40 import java.util.List;
41 
42 
43 
44 public class TestAnfBasicFuns {
45 
46     @CodeReflection
47     public static int test2(int arg1, int arg2) {
48         if (arg1 > arg2) {
49             return arg1 + 21;
50         } else {
51             return arg2 + 42;
52         }
53     }
54 
55     public static void main(String[] args) {
56 
57         testRun("test2", List.of(int.class, int.class), 20, 1);
58 
59     }
60 
61     private static void testRun(String methodName, List<Class<?>> params, Object...args) {
62         try {
63             Class<TestAnfBasicFuns> clazz = TestAnfBasicFuns.class;
64             Method method = clazz.getDeclaredMethod(methodName,params.toArray(new Class[params.size()]));
65             CoreOp.FuncOp f = Op.ofMethod(method).orElseThrow();
66 
67             //Ensure we're fully lowered before testing.
68             var fz = f.transform(OpTransformer.LOWERING_TRANSFORMER);
69             fz = SSA.transform(fz);
70             fz = NormalizeBlocksTransformer.transform(fz);
71 
72             System.out.println(fz.toText());
73 
74             var res = new AnfTransformer(fz).transform();
75             System.out.println("---------------------");
76             System.out.println(res.toText());
77 
78         } catch (NoSuchMethodException e) {
79             throw new RuntimeException(e);
80         }
81     }
82 }