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 // Note that $opt$reg$ is a marker for the optimizing compiler to test 18 // it does use its register allocator. 19 20 public class Main { 21 public static void main(String[] args) { 22 23 expectEquals(4, $opt$reg$TestLostCopy()); 24 expectEquals(-10, $opt$reg$TestTwoLive()); 25 expectEquals(-20, $opt$reg$TestThreeLive()); 26 expectEquals(5, $opt$reg$TestFourLive()); 27 expectEquals(10, $opt$reg$TestMultipleLive()); 28 expectEquals(1, $opt$reg$TestWithBreakAndContinue()); 29 expectEquals(-15, $opt$reg$testSpillInIf(5, 6, 7)); 30 expectEquals(-567, $opt$reg$TestAgressiveLive1(1, 2, 3, 4, 5, 6, 7)); 31 expectEquals(-77, $opt$reg$TestAgressiveLive2(1, 2, 3, 4, 5, 6, 7)); 32 } 33 34 public static int $opt$reg$TestLostCopy() { 35 int a = 0; 36 int b = 0; 37 do { 38 b = a; 39 a++; 40 } while (a != 5); 41 return b; 42 } 43 44 public static int $opt$reg$TestTwoLive() { 45 int a = 0; 46 int b = 0; 47 do { 48 a++; 49 b += 3; 50 } while (a != 5); 51 return a - b; 52 } 53 54 public static int $opt$reg$TestThreeLive() { 55 int a = 0; 56 int b = 0; 57 int c = 0; 58 do { 59 a++; 60 b += 3; 61 c += 2; 62 } while (a != 5); 63 return a - b - c; 64 } 65 66 public static int $opt$reg$TestFourLive() { 67 int a = 0; 68 int b = 0; 69 int c = 0; 70 int d = 0; 71 do { 72 a++; 73 b += 3; 74 c += 2; 75 d++; 76 } while (a != 5); 77 return d; 78 } 79 80 public static int $opt$reg$TestMultipleLive() { 81 int a = 0; 82 int b = 0; 83 int c = 0; 84 int d = 0; 85 int e = 0; 86 int f = 0; 87 int g = 0; 88 do { 89 a++; 90 b++; 91 c++; 92 d++; 93 e += 3; 94 f += 2; 95 g += 2; 96 } while (a != 5); 97 return f; 98 } 99 100 public static int $opt$reg$TestWithBreakAndContinue() { 101 int a = 0; 102 int b = 0; 103 do { 104 a++; 105 if (a == 2) { 106 continue; 107 } 108 b++; 109 if (a == 5) { 110 break; 111 } 112 } while (true); 113 return a - b; 114 } 115 116 public static int $opt$reg$testSpillInIf(int a, int b, int c) { 117 int d = 0; 118 int e = 0; 119 if (a == 5) { 120 b++; 121 c++; 122 d += 2; 123 e += 3; 124 } 125 126 return a - b - c - d - e; 127 } 128 129 public static int $opt$reg$TestAgressiveLive1(int a, int b, int c, int d, int e, int f, int g) { 130 int h = a - b; 131 int i = c - d; 132 int j = e - f; 133 int k = 42 + g - a; 134 do { 135 b++; 136 while (k != 1) { 137 --k; 138 ++i; 139 if (i == 9) { 140 ++i; 141 } 142 j += 5; 143 } 144 k = 9; 145 h++; 146 } while (h != 5); 147 return a - b - c - d - e - f - g - h - i - j - k; 148 } 149 150 public static int $opt$reg$TestAgressiveLive2(int a, int b, int c, int d, int e, int f, int g) { 151 int h = a - b; 152 int i = c - d; 153 int j = e - f; 154 int k = 42 + g - a; 155 do { 156 h++; 157 } while (h != 5); 158 return a - b - c - d - e - f - g - h - i - j - k; 159 } 160 161 public static void expectEquals(int expected, int value) { 162 if (expected != value) { 163 throw new Error("Expected: " + expected + ", got: " + value); 164 } 165 } 166 } 167
