| /* |
| * Copyright (C) 2016 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 { |
| |
| static int static_variable = 0; |
| |
| /// CHECK-START-ARM64: int Main.arrayAccess() scheduler (before) |
| /// CHECK: <<Const1:i\d+>> IntConstant 1 |
| /// CHECK: <<i0:i\d+>> Phi |
| /// CHECK: <<res0:i\d+>> Phi |
| /// CHECK: <<Array:i\d+>> IntermediateAddress |
| /// CHECK: <<ArrayGet1:i\d+>> ArrayGet [<<Array>>,<<i0>>] |
| /// CHECK: <<res1:i\d+>> Add [<<res0>>,<<ArrayGet1>>] |
| /// CHECK: <<i1:i\d+>> Add [<<i0>>,<<Const1>>] |
| /// CHECK: <<ArrayGet2:i\d+>> ArrayGet [<<Array>>,<<i1>>] |
| /// CHECK: Add [<<res1>>,<<ArrayGet2>>] |
| |
| /// CHECK-START-ARM64: int Main.arrayAccess() scheduler (after) |
| /// CHECK: <<Const1:i\d+>> IntConstant 1 |
| /// CHECK: <<i0:i\d+>> Phi |
| /// CHECK: <<res0:i\d+>> Phi |
| /// CHECK: <<Array:i\d+>> IntermediateAddress |
| /// CHECK: <<ArrayGet1:i\d+>> ArrayGet [<<Array>>,<<i0>>] |
| /// CHECK: <<i1:i\d+>> Add [<<i0>>,<<Const1>>] |
| /// CHECK: <<ArrayGet2:i\d+>> ArrayGet [<<Array>>,<<i1>>] |
| /// CHECK: <<res1:i\d+>> Add [<<res0>>,<<ArrayGet1>>] |
| /// CHECK: Add [<<res1>>,<<ArrayGet2>>] |
| |
| public static int arrayAccess() { |
| int res = 0; |
| int [] array = new int[10]; |
| for (int i = 0; i < 9; i++) { |
| res += array[i]; |
| res += array[i + 1]; |
| } |
| return res; |
| } |
| |
| /// CHECK-START-ARM64: int Main.intDiv(int) scheduler (before) |
| /// CHECK: Sub |
| /// CHECK: DivZeroCheck |
| /// CHECK: Div |
| /// CHECK: StaticFieldSet |
| |
| /// CHECK-START-ARM64: int Main.intDiv(int) scheduler (after) |
| /// CHECK: Sub |
| /// CHECK-NOT: StaticFieldSet |
| /// CHECK: DivZeroCheck |
| /// CHECK-NOT: Sub |
| /// CHECK: Div |
| public static int intDiv(int arg) { |
| int res = 0; |
| int tmp = arg; |
| for (int i = 1; i < arg; i++) { |
| tmp -= i; |
| res = res / i; // div-zero check barrier. |
| static_variable++; |
| } |
| res += tmp; |
| return res; |
| } |
| |
| public static void main(String[] args) { |
| if ((arrayAccess() + intDiv(10)) != -35) { |
| System.out.println("FAIL"); |
| } |
| } |
| } |