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      1 /*
      2  * Copyright (C) 2017 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  * Tests of varying trip counts. Focused on testing
     19  * core and cleanup loop after vectorization.
     20  */
     21 public class Main {
     22 
     23   static int[] sA;
     24 
     25   static void init() {
     26     for (int i = 0; i < sA.length; i++)
     27       sA[i] = 100;
     28   }
     29 
     30   static void doitTo(int n) {
     31     for (int i = 0; i < n; i++)
     32       sA[i] += 1;
     33   }
     34 
     35   static void doitFrom(int n) {
     36     for (int i = n; i < sA.length; i++)
     37       sA[i] += 1;
     38   }
     39 
     40   static void verify(int n) {
     41     for (int i = 0; i < n; i++)
     42       if (sA[i] != 101)
     43         throw new Error("failed inside loop");
     44     for (int i = n; i < sA.length; i++)
     45       if (sA[i] != 100)
     46         throw new Error("failed outside loop");
     47   }
     48 
     49   static void verify() {
     50     for (int i = 0; i < sA.length; i++)
     51       if (sA[i] != 101)
     52         throw new Error("failed inside loop");
     53   }
     54 
     55   static void driver() {
     56     for (int n = 0; n <= sA.length; n++) {
     57       init();
     58       doitTo(n);
     59       verify(n);
     60       doitFrom(n);
     61       verify();
     62     }
     63   }
     64 
     65   public static void main(String[] args) {
     66     sA = new int[17];
     67     driver();
     68     sA = new int[32];
     69     driver();
     70     System.out.println("passed");
     71   }
     72 }
     73 
     74