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 org.testng.Assert; 25 import org.testng.annotations.Test; 26 27 import java.lang.reflect.code.OpTransformer; 28 import java.lang.reflect.code.op.CoreOp; 29 import java.lang.reflect.code.Op; 30 import java.lang.reflect.code.interpreter.Interpreter; 31 import java.lang.reflect.Method; 32 import java.lang.runtime.CodeReflection; 33 import java.util.Optional; 34 import java.util.stream.Stream; 35 36 /* 37 * @test 38 * @run testng TestForOp 39 */ 40 41 public class TestForOp { 42 43 @CodeReflection 44 public static int f() { 45 int j = 0; 46 for (int i = 0; i < 10; i++) { 47 j += i; 48 } 49 return j; 50 } 51 52 @Test 53 public void testf() { 54 CoreOp.FuncOp f = getFuncOp("f"); 55 56 f.writeTo(System.out); 57 58 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER); 59 60 lf.writeTo(System.out); 61 62 Assert.assertEquals(Interpreter.invoke(lf), f()); 63 } 64 65 @CodeReflection 66 public static int f2() { 67 int k = 0; 68 for (int i = 0, j = 0; i < 10; i++, j++) { 69 k += i; 70 k += j; 71 } 72 return k; 73 } 74 75 @Test 76 public void testf2() { 77 CoreOp.FuncOp f = getFuncOp("f2"); 78 79 f.writeTo(System.out); 80 81 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER); 82 83 lf.writeTo(System.out); 84 85 Assert.assertEquals(Interpreter.invoke(lf), f2()); 86 } 87 88 @CodeReflection 89 public static int f3() { 90 int k = 0; 91 int i = 0; 92 int j = 0; 93 for (i = 0, j = 0; i < 10; i++, j++) { 94 k += i; 95 k += j; 96 } 97 return k; 98 } 99 100 @Test 101 public void testf3() { 102 CoreOp.FuncOp f = getFuncOp("f3"); 103 104 f.writeTo(System.out); 105 106 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER); 107 108 lf.writeTo(System.out); 109 110 Assert.assertEquals(Interpreter.invoke(lf), f3()); 111 } 112 113 static CoreOp.FuncOp getFuncOp(String name) { 114 Optional<Method> om = Stream.of(TestForOp.class.getDeclaredMethods()) 115 .filter(m -> m.getName().equals(name)) 116 .findFirst(); 117 118 Method m = om.get(); 119 return m.getCodeModel().get(); 120 } 121 }