1 /* 2 * Copyright (C) 2015 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 public class Main { 18 19 // Check that we don't put a null check in the card marking code. 20 21 /// CHECK-START: void Main.test() instruction_simplifier (before) 22 /// CHECK: ArraySet value_can_be_null:true 23 24 /// CHECK-START: void Main.test() instruction_simplifier (after) 25 /// CHECK: ArraySet value_can_be_null:false 26 27 /// CHECK-START-X86: void Main.test() disassembly (after) 28 /// CHECK: ArraySet value_can_be_null:false 29 /// CHECK-NOT: test 30 /// CHECK: ReturnVoid 31 public static void test() { 32 Object[] array = new Object[2]; 33 // Storing to static to avoid some lse optimization. 34 sArray = array; 35 Object nonNull = array[0]; 36 nonNull.getClass(); // Ensure nonNull has an implicit null check. 37 array[1] = nonNull; 38 } 39 40 public static void main(String[] args) {} 41 42 static Object[] sArray; 43 } 44
