1 /* 2 * Copyright (C) 2014 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 { main(String[] args)18 public static void main(String[] args) { 19 $opt$TestSlowPath(); 20 } 21 $opt$TestSlowPath()22 public static void $opt$TestSlowPath() { 23 Object[] o = bar(); 24 assertEquals(0, o.length); 25 // The slowpath of the instanceof requires the live register 26 // holding `o` to be saved before going into runtime. The linear 27 // scan register allocator used to miscompute the number of 28 // live registers at a safepoint, so the place at which the register 29 // was saved was wrong. 30 doCall(o instanceof Interface[], o); 31 } 32 assertEquals(int a, int b)33 public static void assertEquals(int a, int b) {} doCall(boolean val, Object o)34 public static boolean doCall(boolean val, Object o) { return val; } 35 bar()36 static Object[] bar() { return new Object[0]; } 37 38 static interface Interface {} 39 } 40