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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 public class Main {
     19 
     20   public static void assertIntEquals(int expected, int result) {
     21     if (expected != result) {
     22       throw new Error("Expected: " + expected + ", found: " + result);
     23     }
     24   }
     25 
     26   public static int Inline(int x, int y) {
     27     int result;
     28     if (x <= y) {
     29       result = x * y;
     30     } else {
     31       result = 0;
     32     }
     33     return result;
     34   }
     35 
     36   /// CHECK-START: int Main.NestedLoop(int, int) inliner (before)
     37   /// CHECK-NOT:     Mul
     38 
     39   /// CHECK-START: int Main.NestedLoop(int, int) inliner (after)
     40   /// CHECK:         Mul
     41   /// CHECK-NOT:     Mul
     42 
     43   public static int NestedLoop(int max_x, int max_y) {
     44     int total = 0;
     45     for (int x = 0; x < max_x; ++x) {
     46       for (int y = 0; y < max_y; ++y) {
     47         total += Inline(x, y);
     48       }
     49     }
     50     return total;
     51   }
     52 
     53   public static void main(String[] args) {
     54     assertIntEquals(0, NestedLoop(1, 1));
     55     assertIntEquals(3, NestedLoop(2, 3));
     56   }
     57 }
     58