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 /*
25  * @test
26  * @modules jdk.incubator.code
27  * @run testng TestNaming
28  */
29 
30 import org.testng.Assert;
31 import org.testng.annotations.Test;
32 
33 import java.io.StringWriter;
34 import java.lang.reflect.Method;
35 import jdk.incubator.code.CodeItem;
36 import jdk.incubator.code.Op;
37 import jdk.incubator.code.OpTransformer;
38 import jdk.incubator.code.analysis.SSA;
39 import jdk.incubator.code.op.CoreOp;
40 import jdk.incubator.code.writer.OpWriter;
41 import jdk.incubator.code.CodeReflection;
42 import java.util.Map;
43 import java.util.Optional;
44 import java.util.function.Function;
45 import java.util.stream.Stream;
46 
47 public class TestNaming {
48 
49     @CodeReflection
50     static int f(int n, int m) {
51         int sum = 0;
52         for (int i = 0; i < n; i++) {
53             for (int j = 0; j < n; j++) {
54                 sum += i;
55                 sum += j;
56             }
57         }
58         return sum;
59     }
60 
61     @Test
62     public void testHigh() {
63         CoreOp.FuncOp f = getFuncOp("f");
64 
65         testModel(f);
66     }
67 
68     @Test
69     public void testLow() {
70         CoreOp.FuncOp f = getFuncOp("f");
71 
72         f = f.transform(OpTransformer.LOWERING_TRANSFORMER);
73 
74         f = SSA.transform(f);
75 
76         testModel(f);
77     }
78 
79     static void testModel(Op op) {
80         Function<CodeItem, String> cNamer = OpWriter.computeGlobalNames(op);
81 
82         String actual = OpWriter.toText(op, OpWriter.CodeItemNamerOption.of(cNamer));
83         String expected = op.toText();
84 
85         Assert.assertEquals(actual, expected);
86     }
87 
88     static CoreOp.FuncOp getFuncOp(String name) {
89         Optional<Method> om = Stream.of(TestNaming.class.getDeclaredMethods())
90                 .filter(m -> m.getName().equals(name))
91                 .findFirst();
92 
93         Method m = om.get();
94         return Op.ofMethod(m).get();
95     }
96 }