xref: /aosp_15_r20/art/test/402-optimizing-control-flow/src/Main.java (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
1*795d594fSAndroid Build Coastguard Worker /*
2*795d594fSAndroid Build Coastguard Worker  * Copyright (C) 2014 The Android Open Source Project
3*795d594fSAndroid Build Coastguard Worker  *
4*795d594fSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*795d594fSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*795d594fSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*795d594fSAndroid Build Coastguard Worker  *
8*795d594fSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*795d594fSAndroid Build Coastguard Worker  *
10*795d594fSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*795d594fSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*795d594fSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*795d594fSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*795d594fSAndroid Build Coastguard Worker  * limitations under the License.
15*795d594fSAndroid Build Coastguard Worker  */
16*795d594fSAndroid Build Coastguard Worker 
17*795d594fSAndroid Build Coastguard Worker // Note that $opt$ is a marker for the optimizing compiler to test
18*795d594fSAndroid Build Coastguard Worker // it does compile the method.
19*795d594fSAndroid Build Coastguard Worker 
20*795d594fSAndroid Build Coastguard Worker public class Main {
21*795d594fSAndroid Build Coastguard Worker 
expectEquals(int expected, int value)22*795d594fSAndroid Build Coastguard Worker   public static void expectEquals(int expected, int value) {
23*795d594fSAndroid Build Coastguard Worker     if (expected != value) {
24*795d594fSAndroid Build Coastguard Worker       throw new Error("Expected: " + expected + ", found: " + value);
25*795d594fSAndroid Build Coastguard Worker     }
26*795d594fSAndroid Build Coastguard Worker   }
27*795d594fSAndroid Build Coastguard Worker 
main(String[] args)28*795d594fSAndroid Build Coastguard Worker   public static void main(String[] args) {
29*795d594fSAndroid Build Coastguard Worker     int result = $opt$testIfEq1(42);
30*795d594fSAndroid Build Coastguard Worker     expectEquals(42, result);
31*795d594fSAndroid Build Coastguard Worker 
32*795d594fSAndroid Build Coastguard Worker     result = $opt$testIfEq2(42);
33*795d594fSAndroid Build Coastguard Worker     expectEquals(7, result);
34*795d594fSAndroid Build Coastguard Worker 
35*795d594fSAndroid Build Coastguard Worker     result = $opt$testWhileLoop(42);
36*795d594fSAndroid Build Coastguard Worker     expectEquals(45, result);
37*795d594fSAndroid Build Coastguard Worker 
38*795d594fSAndroid Build Coastguard Worker     result = $opt$testDoWhileLoop(42);
39*795d594fSAndroid Build Coastguard Worker     expectEquals(45, result);
40*795d594fSAndroid Build Coastguard Worker 
41*795d594fSAndroid Build Coastguard Worker     result = $opt$testForLoop(42);
42*795d594fSAndroid Build Coastguard Worker     expectEquals(44, result);
43*795d594fSAndroid Build Coastguard Worker 
44*795d594fSAndroid Build Coastguard Worker     result = $opt$testIfWithLocal(5);
45*795d594fSAndroid Build Coastguard Worker     expectEquals(7, result);
46*795d594fSAndroid Build Coastguard Worker   }
47*795d594fSAndroid Build Coastguard Worker 
$opt$testIfEq1(int a)48*795d594fSAndroid Build Coastguard Worker   static int $opt$testIfEq1(int a) {
49*795d594fSAndroid Build Coastguard Worker     if (a + 1 == 43) {
50*795d594fSAndroid Build Coastguard Worker       return 42;
51*795d594fSAndroid Build Coastguard Worker     } else {
52*795d594fSAndroid Build Coastguard Worker       return 7;
53*795d594fSAndroid Build Coastguard Worker     }
54*795d594fSAndroid Build Coastguard Worker   }
55*795d594fSAndroid Build Coastguard Worker 
$opt$testIfEq2(int a)56*795d594fSAndroid Build Coastguard Worker   static int $opt$testIfEq2(int a) {
57*795d594fSAndroid Build Coastguard Worker     if (a + 1 == 41) {
58*795d594fSAndroid Build Coastguard Worker       return 42;
59*795d594fSAndroid Build Coastguard Worker     } else {
60*795d594fSAndroid Build Coastguard Worker       return 7;
61*795d594fSAndroid Build Coastguard Worker     }
62*795d594fSAndroid Build Coastguard Worker   }
63*795d594fSAndroid Build Coastguard Worker 
$opt$testWhileLoop(int a)64*795d594fSAndroid Build Coastguard Worker   static int $opt$testWhileLoop(int a) {
65*795d594fSAndroid Build Coastguard Worker     while (a++ != 44) {}
66*795d594fSAndroid Build Coastguard Worker     return a;
67*795d594fSAndroid Build Coastguard Worker   }
68*795d594fSAndroid Build Coastguard Worker 
$opt$testDoWhileLoop(int a)69*795d594fSAndroid Build Coastguard Worker   static int $opt$testDoWhileLoop(int a) {
70*795d594fSAndroid Build Coastguard Worker     do {
71*795d594fSAndroid Build Coastguard Worker     } while (a++ != 44);
72*795d594fSAndroid Build Coastguard Worker     return a;
73*795d594fSAndroid Build Coastguard Worker   }
74*795d594fSAndroid Build Coastguard Worker 
$opt$testForLoop(int a)75*795d594fSAndroid Build Coastguard Worker   static int $opt$testForLoop(int a) {
76*795d594fSAndroid Build Coastguard Worker     for (; a != 44; a++) {}
77*795d594fSAndroid Build Coastguard Worker     return a;
78*795d594fSAndroid Build Coastguard Worker   }
79*795d594fSAndroid Build Coastguard Worker 
$opt$testIfWithLocal(int a)80*795d594fSAndroid Build Coastguard Worker   static int $opt$testIfWithLocal(int a) {
81*795d594fSAndroid Build Coastguard Worker     if (a == 5) {
82*795d594fSAndroid Build Coastguard Worker       int f = 2;
83*795d594fSAndroid Build Coastguard Worker       a += f;
84*795d594fSAndroid Build Coastguard Worker     }
85*795d594fSAndroid Build Coastguard Worker     // The SSA builder should not create a phi for f.
86*795d594fSAndroid Build Coastguard Worker 
87*795d594fSAndroid Build Coastguard Worker     return a;
88*795d594fSAndroid Build Coastguard Worker   }
89*795d594fSAndroid Build Coastguard Worker }
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