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.CodeReflection;
 25 import jdk.incubator.code.Op;
 26 import jdk.incubator.code.OpTransformer;
 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 TestForOp
 41  */
 42 
 43 public class TestForOp {
 44 
 45     @CodeReflection
 46     public static int f() {
 47         int j = 0;
 48         for (int i = 0; i < 10; i++) {
 49             j += i;
 50         }
 51         return j;
 52     }
 53 
 54     @Test
 55     public void testf() {
 56         CoreOp.FuncOp f = getFuncOp("f");
 57 
 58         System.out.println(f.toText());
 59 
 60         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
 61 
 62         System.out.println(lf.toText());
 63 
 64         Assertions.assertEquals(f(), Interpreter.invoke(MethodHandles.lookup(), lf));
 65     }
 66 
 67     @CodeReflection
 68     public static int f2() {
 69         int k = 0;
 70         for (int i = 0, j = 0; i < 10; i++, j++) {
 71             k += i;
 72             k += j;
 73         }
 74         return k;
 75     }
 76 
 77     @Test
 78     public void testf2() {
 79         CoreOp.FuncOp f = getFuncOp("f2");
 80 
 81         System.out.println(f.toText());
 82 
 83         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
 84 
 85         System.out.println(lf.toText());
 86 
 87         Assertions.assertEquals(f2(), Interpreter.invoke(MethodHandles.lookup(), lf));
 88     }
 89 
 90     @CodeReflection
 91     public static int f3() {
 92         int k = 0;
 93         int i = 0;
 94         int j = 0;
 95         for (i = 0, j = 0; i < 10; i++, j++) {
 96             k += i;
 97             k += j;
 98         }
 99         return k;
100     }
101 
102     @Test
103     public void testf3() {
104         CoreOp.FuncOp f = getFuncOp("f3");
105 
106         System.out.println(f.toText());
107 
108         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
109 
110         System.out.println(lf.toText());
111 
112         Assertions.assertEquals(f3(), Interpreter.invoke(MethodHandles.lookup(), lf));
113     }
114 
115     static CoreOp.FuncOp getFuncOp(String name) {
116         Optional<Method> om = Stream.of(TestForOp.class.getDeclaredMethods())
117                 .filter(m -> m.getName().equals(name))
118                 .findFirst();
119 
120         Method m = om.get();
121         return Op.ofMethod(m).get();
122     }
123 }