content: /*
   * Copyright (C) 2017 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.
   */
  
  /**
   * Functional tests for SIMD vectorization.
   */
  public class Main {
  
    static boolean[] a;
  
    //
    // Arithmetic operations.
    //
  
    /// CHECK-START: void Main.and(boolean) loop_optimization (before)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
    //
    /// CHECK-START-ARM64: void Main.and(boolean) loop_optimization (after)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecAnd   loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
    static void and(boolean x) {
      for (int i = 0; i < 128; i++)
        a[i] &= x;  // NOTE: bitwise and, not the common &&
    }
  
    /// CHECK-START: void Main.or(boolean) loop_optimization (before)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
    //
    /// CHECK-START-ARM64: void Main.or(boolean) loop_optimization (after)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecOr    loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
    static void or(boolean x) {
      for (int i = 0; i < 128; i++)
        a[i] |= x;  // NOTE: bitwise or, not the common ||
    }
  
    /// CHECK-START: void Main.xor(boolean) loop_optimization (before)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
    //
    /// CHECK-START-ARM64: void Main.xor(boolean) loop_optimization (after)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecXor   loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
    static void xor(boolean x) {
      for (int i = 0; i < 128; i++)
        a[i] ^= x;  // NOTE: bitwise xor
    }
  
    /// CHECK-START: void Main.not() loop_optimization (before)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
    //
    /// CHECK-START-ARM64: void Main.not() loop_optimization (after)
    /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
    /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
    /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
    static void not() {
      for (int i = 0; i < 128; i++)
        a[i] = !a[i];
    }
  
    //
    // Test Driver.
    //
  
    public static void main(String[] args) {
      // Set up.
      a = new boolean[128];
      for (int i = 0; i < 128; i++) {
        a[i] = (i & 1) == 0;
      }
      // Arithmetic operations.
      and(true);
      for (int i = 0; i < 128; i++) {
        expectEquals((i & 1) == 0, a[i], "and-true");
      }
      xor(true);
      for (int i = 0; i < 128; i++) {
        expectEquals((i & 1) != 0, a[i], "xor-true");
      }
      xor(false);
      for (int i = 0; i < 128; i++) {
        expectEquals((i & 1) != 0, a[i], "xor-false");
      }
      not();
      for (int i = 0; i < 128; i++) {
        expectEquals((i & 1) == 0, a[i], "not");
      }
      or(true);
      for (int i = 0; i < 128; i++) {
        expectEquals(true, a[i], "or-true");
      }
      and(false);
      for (int i = 0; i < 128; i++) {
        expectEquals(false, a[i], "and-false");
      }
      or(false);
      for (int i = 0; i < 128; i++) {
        expectEquals(false, a[i], "or-false");
      }
      // Done.
      System.out.println("passed");
    }
  
    private static void expectEquals(boolean expected, boolean result, String action) {
      if (expected != result) {
        throw new Error("Expected: " + expected + ", found: " + result + " for " + action);
      }
    }
  }
  