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.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import jdk.incubator.code.Reflect;
25 import jdk.incubator.code.Op;
26 import jdk.incubator.code.CodeTransformer;
27 import jdk.incubator.code.dialect.core.CoreOp;
28 import jdk.incubator.code.interpreter.Interpreter;
29 import org.junit.jupiter.api.Assertions;
30 import org.junit.jupiter.api.Test;
31 
32 import java.lang.invoke.MethodHandles;
33 import java.lang.reflect.Method;
34 import java.util.Optional;
35 import java.util.stream.Stream;
36 
37 /*
38  * @test
39  * @modules jdk.incubator.code
40  * @run junit TestIfOp
41  */
42 
43 public class TestIfOp {
44 
45     @Reflect
46     public static String f(int i) {
47         String s;
48         if (i <= 1) {
49             s = "<=ONE";
50         } else if (i == 2) {
51             s = "TWO";
52         } else if (i == 3) {
53             s = "THREE";
54         } else if (i == 4) {
55             s = "FOUR";
56         } else {
57             s = ">=FIVE";
58         }
59         return s;
60     }
61 
62     static CoreOp.FuncOp getFuncOp(String name) {
63         Optional<Method> om = Stream.of(TestIfOp.class.getDeclaredMethods())
64                 .filter(m -> m.getName().equals(name))
65                 .findFirst();
66 
67         Method m = om.get();
68         return Op.ofMethod(m).get();
69     }
70 
71     @Test
72     public void testf() {
73         CoreOp.FuncOp f = getFuncOp("f");
74 
75         System.out.println(f.toText());
76 
77         CoreOp.FuncOp lf = f.transform(CodeTransformer.LOWERING_TRANSFORMER);
78 
79         System.out.println(lf.toText());
80 
81         for (int i = 0; i < 6; i++) {
82             Assertions.assertEquals(f(i), Interpreter.invoke(MethodHandles.lookup(), lf, i));
83         }
84     }
85 }