1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 import java.lang.reflect.Method; 18 19 public class Main { 20 static long smallLong = 42L; 21 static long smallLongShlOne = 84L; 22 static long smallLongShrOne = 21L; 23 static long smallLongUShrOne = 21L; 24 static long longLong = 123456789123456789L; 25 static long longLongShlOne = 246913578246913578L; 26 static long longLongShrOne = 61728394561728394L; 27 static long longLongUShrOne = 61728394561728394L; 28 29 static long negativeSmallLong = -42L; 30 static long negativeSmallLongShlOne = -84L; 31 static long negativeSmallLongShrOne = -21L; 32 static long negativeSmallLongUShrOne = 9223372036854775787L; 33 static long negativeLongLong = -123456789123456789L; 34 static long negativeLongLongShlOne = -246913578246913578L; 35 static long negativeLongLongShrOne = -61728394561728395L; 36 static long negativeLongLongUShrOne = 9161643642293047413L; 37 38 private static void assertEquals(long expected, long actual) { 39 if (expected != actual) { 40 throw new Error("Expected " + expected + ", got " + actual); 41 } 42 } 43 44 public static void main(String[] args) throws Exception { 45 Class<?> c = Class.forName("Test"); 46 Method m = c.getMethod("shlZero", long.class); 47 assertEquals(smallLong, (Long)m.invoke(null, smallLong)); 48 assertEquals(longLong, (Long)m.invoke(null, longLong)); 49 50 m = c.getMethod("shrZero", long.class); 51 assertEquals(smallLong, (Long)m.invoke(null, smallLong)); 52 assertEquals(longLong, (Long)m.invoke(null, longLong)); 53 54 m = c.getMethod("ushrZero", long.class); 55 assertEquals(smallLong, (Long)m.invoke(null, smallLong)); 56 assertEquals(longLong, (Long)m.invoke(null, longLong)); 57 58 m = c.getMethod("shlOne", long.class); 59 assertEquals(smallLongShlOne, (Long)m.invoke(null, smallLong)); 60 assertEquals(longLongShlOne, (Long)m.invoke(null, longLong)); 61 62 m = c.getMethod("shrOne", long.class); 63 assertEquals(smallLongShrOne, (Long)m.invoke(null, smallLong)); 64 assertEquals(longLongShrOne, (Long)m.invoke(null, longLong)); 65 66 m = c.getMethod("ushrOne", long.class); 67 assertEquals(smallLongUShrOne, (Long)m.invoke(null, smallLong)); 68 assertEquals(longLongUShrOne, (Long)m.invoke(null, longLong)); 69 70 // Test with negative numbers. 71 72 m = c.getMethod("shlZero", long.class); 73 assertEquals(negativeSmallLong, (Long)m.invoke(null, negativeSmallLong)); 74 assertEquals(negativeLongLong, (Long)m.invoke(null, negativeLongLong)); 75 76 m = c.getMethod("shrZero", long.class); 77 assertEquals(negativeSmallLong, (Long)m.invoke(null, negativeSmallLong)); 78 assertEquals(negativeLongLong, (Long)m.invoke(null, negativeLongLong)); 79 80 m = c.getMethod("ushrZero", long.class); 81 assertEquals(negativeSmallLong, (Long)m.invoke(null, negativeSmallLong)); 82 assertEquals(negativeLongLong, (Long)m.invoke(null, negativeLongLong)); 83 84 m = c.getMethod("shlOne", long.class); 85 assertEquals(negativeSmallLongShlOne, (Long)m.invoke(null, negativeSmallLong)); 86 assertEquals(negativeLongLongShlOne, (Long)m.invoke(null, negativeLongLong)); 87 88 m = c.getMethod("shrOne", long.class); 89 assertEquals(negativeSmallLongShrOne, (Long)m.invoke(null, negativeSmallLong)); 90 assertEquals(negativeLongLongShrOne, (Long)m.invoke(null, negativeLongLong)); 91 92 m = c.getMethod("ushrOne", long.class); 93 assertEquals(negativeSmallLongUShrOne, (Long)m.invoke(null, negativeSmallLong)); 94 assertEquals(negativeLongLongUShrOne, (Long)m.invoke(null, negativeLongLong)); 95 } 96 } 97
