content: /*
   * 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 intrinsic:SystemArrayCopy
    /// CHECK-NOT:      test {{^[^\[].*}}, {{^[^\[].*}}
    /// CHECK-NOT:      call
    /// CHECK:          ReturnVoid
    // Checks that the call is intrinsified and that there is no register 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);
    }
  
    // Test case for having enough registers on x86 for the arraycopy intrinsic.
    /// CHECK-START-X86: void Main.arraycopy(java.lang.Object[], int) disassembly (after)
    /// CHECK:          InvokeStaticOrDirect intrinsic:SystemArrayCopy
    /// CHECK-NOT:      mov {{[a-z]+}}, [esp + {{[0-9]+}}]
    /// CHECK:          ReturnVoid
    public static void arraycopy(Object[] obj, int pos) {
      System.arraycopy(obj, pos, obj, 0, obj.length);
    }
  
    // Test case for having enough registers on x86 for the arraycopy intrinsic
    // when an input is passed twice.
    /// CHECK-START-X86: int Main.arraycopy2(java.lang.Object[], int) disassembly (after)
    /// CHECK:          InvokeStaticOrDirect intrinsic:SystemArrayCopy
    /// CHECK-NOT:      mov {{[a-z]+}}, [esp + {{[0-9]+}}]
    /// CHECK:          Return
    public static int arraycopy2(Object[] obj, int pos) {
      System.arraycopy(obj, pos, obj, pos - 1, obj.length);
      return pos;
    }
  
    // Test case for not having enough registers on x86. The arraycopy intrinsic
    // will ask for length to be in stack and load it.
    /// CHECK-START-X86: int Main.arraycopy3(java.lang.Object[], java.lang.Object[], int, int, int) disassembly (after)
    /// CHECK:          InvokeStaticOrDirect intrinsic:SystemArrayCopy
    /// CHECK:          mov {{[a-z]+}}, [esp + {{[0-9]+}}]
    /// CHECK:          Return
    public static int arraycopy3(Object[] obj1, Object[] obj2, int input1, int input3, int input4) {
      System.arraycopy(obj1, input1, obj2, input3, input4);
      System.out.println(obj1);
      System.out.println(obj2);
      return input1 + input3 + input4;
    }
  }
  