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 public static int $inline$method() { 20 return 5; 21 } 22 23 /// CHECK-START: int Main.wholeSwitchDead(int) dead_code_elimination_final (before) 24 /// CHECK-DAG: PackedSwitch 25 26 /// CHECK-START: int Main.wholeSwitchDead(int) dead_code_elimination_final (after) 27 /// CHECK-DAG: <<Const100:i\d+>> IntConstant 100 28 /// CHECK-DAG: Return [<<Const100>>] 29 30 /// CHECK-START: int Main.wholeSwitchDead(int) dead_code_elimination_final (after) 31 /// CHECK-NOT: PackedSwitch 32 33 public static int wholeSwitchDead(int j) { 34 int i = $inline$method(); 35 int l = 100; 36 if (i > 100) { 37 switch(j) { 38 case 1: 39 i++; 40 break; 41 case 2: 42 i = 99; 43 break; 44 case 3: 45 i = 100; 46 break; 47 case 4: 48 i = -100; 49 break; 50 case 5: 51 i = 7; 52 break; 53 case 6: 54 i = -9; 55 break; 56 } 57 l += i; 58 } 59 60 return l; 61 } 62 63 /// CHECK-START: int Main.constantSwitch_InRange() dead_code_elimination_final (before) 64 /// CHECK-DAG: PackedSwitch 65 66 /// CHECK-START: int Main.constantSwitch_InRange() dead_code_elimination_final (after) 67 /// CHECK-DAG: <<Const7:i\d+>> IntConstant 7 68 /// CHECK-DAG: Return [<<Const7>>] 69 70 /// CHECK-START: int Main.constantSwitch_InRange() dead_code_elimination_final (after) 71 /// CHECK-NOT: PackedSwitch 72 73 public static int constantSwitch_InRange() { 74 int i = $inline$method(); 75 switch(i) { 76 case 1: 77 i++; 78 break; 79 case 2: 80 i = 99; 81 break; 82 case 3: 83 i = 100; 84 break; 85 case 4: 86 i = -100; 87 break; 88 case 5: 89 i = 7; 90 break; 91 case 6: 92 i = -9; 93 break; 94 } 95 96 return i; 97 } 98 99 /// CHECK-START: int Main.constantSwitch_AboveRange() dead_code_elimination_final (before) 100 /// CHECK-DAG: PackedSwitch 101 102 /// CHECK-START: int Main.constantSwitch_AboveRange() dead_code_elimination_final (after) 103 /// CHECK-DAG: <<Const15:i\d+>> IntConstant 15 104 /// CHECK-DAG: Return [<<Const15>>] 105 106 /// CHECK-START: int Main.constantSwitch_AboveRange() dead_code_elimination_final (after) 107 /// CHECK-NOT: PackedSwitch 108 109 public static int constantSwitch_AboveRange() { 110 int i = $inline$method() + 10; 111 switch(i) { 112 case 1: 113 i++; 114 break; 115 case 2: 116 i = 99; 117 break; 118 case 3: 119 i = 100; 120 break; 121 case 4: 122 i = -100; 123 break; 124 case 5: 125 i = 7; 126 break; 127 case 6: 128 i = -9; 129 break; 130 } 131 132 return i; 133 } 134 135 /// CHECK-START: int Main.constantSwitch_BelowRange() dead_code_elimination_final (before) 136 /// CHECK-DAG: PackedSwitch 137 138 /// CHECK-START: int Main.constantSwitch_BelowRange() dead_code_elimination_final (after) 139 /// CHECK-DAG: <<ConstM5:i\d+>> IntConstant -5 140 /// CHECK-DAG: Return [<<ConstM5>>] 141 142 /// CHECK-START: int Main.constantSwitch_BelowRange() dead_code_elimination_final (after) 143 /// CHECK-NOT: PackedSwitch 144 145 public static int constantSwitch_BelowRange() { 146 int i = $inline$method() - 10; 147 switch(i) { 148 case 1: 149 i++; 150 break; 151 case 2: 152 i = 99; 153 break; 154 case 3: 155 i = 100; 156 break; 157 case 4: 158 i = -100; 159 break; 160 case 5: 161 i = 7; 162 break; 163 case 6: 164 i = -9; 165 break; 166 } 167 168 return i; 169 } 170 171 public static void main(String[] args) throws Exception { 172 int ret_val = wholeSwitchDead(10); 173 if (ret_val != 100) { 174 throw new Error("Incorrect return value from wholeSwitchDead:" + ret_val); 175 } 176 177 ret_val = constantSwitch_InRange(); 178 if (ret_val != 7) { 179 throw new Error("Incorrect return value from constantSwitch_InRange:" + ret_val); 180 } 181 182 ret_val = constantSwitch_AboveRange(); 183 if (ret_val != 15) { 184 throw new Error("Incorrect return value from constantSwitch_AboveRange:" + ret_val); 185 } 186 187 ret_val = constantSwitch_BelowRange(); 188 if (ret_val != -5) { 189 throw new Error("Incorrect return value from constantSwitch_BelowRange:" + ret_val); 190 } 191 } 192 } 193