xref: /aosp_15_r20/art/test/646-checker-arraycopy-large-cst-pos/src/Main.java (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
1*795d594fSAndroid Build Coastguard Worker /*
2*795d594fSAndroid Build Coastguard Worker  * Copyright (C) 2017 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 public class Main {
18*795d594fSAndroid Build Coastguard Worker 
main(String[] args)19*795d594fSAndroid Build Coastguard Worker   public static void main(String[] args) {
20*795d594fSAndroid Build Coastguard Worker     System.out.println("passed");
21*795d594fSAndroid Build Coastguard Worker   }
22*795d594fSAndroid Build Coastguard Worker 
23*795d594fSAndroid Build Coastguard Worker   /// CHECK-START-ARM64: void Main.test() disassembly (after)
24*795d594fSAndroid Build Coastguard Worker   /// CHECK: InvokeStaticOrDirect method_name:java.lang.System.arraycopy intrinsic:SystemArrayCopy
25*795d594fSAndroid Build Coastguard Worker   /// CHECK-NOT:    blr
26*795d594fSAndroid Build Coastguard Worker   /// CHECK: ReturnVoid
27*795d594fSAndroid Build Coastguard Worker 
test()28*795d594fSAndroid Build Coastguard Worker   static void test() {
29*795d594fSAndroid Build Coastguard Worker     Object[] src = new Object[1024];
30*795d594fSAndroid Build Coastguard Worker     Object[] dst = new Object[2048];
31*795d594fSAndroid Build Coastguard Worker     // The length of the copied data must not be too large (smaller
32*795d594fSAndroid Build Coastguard Worker     // than kSystemArrayCopyThreshold = 128) for the call to
33*795d594fSAndroid Build Coastguard Worker     // System.arraycopy to be intrinsified.
34*795d594fSAndroid Build Coastguard Worker     System.arraycopy(src, 0, dst, 1024, 64);
35*795d594fSAndroid Build Coastguard Worker   }
36*795d594fSAndroid Build Coastguard Worker 
37*795d594fSAndroid Build Coastguard Worker }
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