| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| public class Main { |
| public static void main(String[] args) { |
| arraycopy(); |
| try { |
| arraycopy(new Object()); |
| throw new Error("Should not be here"); |
| } catch (ArrayStoreException ase) { |
| // Ignore. |
| } |
| try { |
| arraycopy(null); |
| throw new Error("Should not be here"); |
| } catch (NullPointerException npe) { |
| // Ignore. |
| } |
| |
| try { |
| arraycopy(new Object[1]); |
| throw new Error("Should not be here"); |
| } catch (ArrayIndexOutOfBoundsException aiooe) { |
| // Ignore. |
| } |
| |
| arraycopy(new Object[2]); |
| arraycopy(new Object[2], 0); |
| |
| try { |
| arraycopy(new Object[1], 1); |
| throw new Error("Should not be here"); |
| } catch (ArrayIndexOutOfBoundsException aiooe) { |
| // Ignore. |
| } |
| } |
| |
| /// CHECK-START-X86_64: void Main.arraycopy() disassembly (after) |
| /// CHECK: InvokeStaticOrDirect |
| /// CHECK-NOT: test |
| /// CHECK-NOT: call |
| /// CHECK: ReturnVoid |
| // Checks that the call is intrinsified and that there is no test instruction |
| // when we know the source and destination are not null. |
| public static void arraycopy() { |
| Object[] obj = new Object[4]; |
| System.arraycopy(obj, 1, obj, 0, 1); |
| } |
| |
| public static void arraycopy(Object obj) { |
| System.arraycopy(obj, 1, obj, 0, 1); |
| } |
| |
| public static void arraycopy(Object[] obj, int pos) { |
| System.arraycopy(obj, pos, obj, 0, obj.length); |
| } |
| } |