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