TestCompare.java

/*
 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
 *
 *  This file is licensed to You under the Eclipse Public License (EPL);
 *  You may not use this file except in compliance with the License. You
 *  may obtain a copy of the License at
 *
 *      http://www.opensource.org/licenses/eclipse-1.0.php
 *
 *  See the COPYRIGHT.txt file distributed with this work for information
 *  regarding copyright ownership.
 */
package test.org.jikesrvm.basic.core.bytecode;

public class TestCompare {
  public static void main(String[] args) {
    zero_cmp();
    i_cmp();
    l_cmp();
    f_cmp();
    d_cmp();
    a_cmp();
    null_cmp();
    str_cmp();
  }

  static void zero_cmp() {
    int i = -1;

    System.out.print("zero_cmp Expected: 100110 Actual: ");
    if (i != 0) System.out.print(1); else System.out.print(0); // ifeq
    if (i == 0) System.out.print(1); else System.out.print(0); // ifne
    if (i >= 0) System.out.print(1); else System.out.print(0); // iflt
    if (i <  0) System.out.print(1); else System.out.print(0); // ifge
    if (i <= 0) System.out.print(1); else System.out.print(0); // ifgt
    if (i >  0) System.out.print(1); else System.out.print(0); // ifle
    System.out.println();
  }

  static void i_cmp() {
    int i = -1;
    int j = 0;

    System.out.print("i_cmp Expected: 100110 Actual: ");
    if (i != j) System.out.print(1); else System.out.print(0); // if_icmpeq
    if (i == j) System.out.print(1); else System.out.print(0); // if_icmpne
    if (i >= j) System.out.print(1); else System.out.print(0); // if_icmplt
    if (i <  j) System.out.print(1); else System.out.print(0); // if_icmpge
    if (i <= j) System.out.print(1); else System.out.print(0); // if_icmpgt
    if (i >  j) System.out.print(1); else System.out.print(0); // if_icmple
    System.out.println();
  }

  static void l_cmp() {
    long a = 1;
    long b = 2;

    System.out.print("l_cmp Expected: 100010001 Actual: ");

    if (a <  b) System.out.print(1); else System.out.print(0); // lcmp(-1)
    if (a == b) System.out.print(1); else System.out.print(0);
    if (a >  b) System.out.print(1); else System.out.print(0);

    if (a <  a) System.out.print(1); else System.out.print(0);
    if (a == a) System.out.print(1); else System.out.print(0); // lcmp(0)
    if (a >  a) System.out.print(1); else System.out.print(0);

    if (b <  a) System.out.print(1); else System.out.print(0);
    if (b == a) System.out.print(1); else System.out.print(0);
    if (b >  a) System.out.print(1); else System.out.print(0); // lcmp(1)

    System.out.println();
  }

  static void f_cmp() {
    float a = 1;
    float b = 2;

    System.out.print("f_cmp Expected: 100010001 Actual: ");

    if (a <  b) System.out.print(1); else System.out.print(0); // fcmp[lg](-1)
    if (a == b) System.out.print(1); else System.out.print(0);
    if (a >  b) System.out.print(1); else System.out.print(0);

    if (a <  a) System.out.print(1); else System.out.print(0);
    if (a == a) System.out.print(1); else System.out.print(0); // fcmp[lg](0)
    if (a >  a) System.out.print(1); else System.out.print(0);

    if (b <  a) System.out.print(1); else System.out.print(0);
    if (b == a) System.out.print(1); else System.out.print(0);
    if (b >  a) System.out.print(1); else System.out.print(0); // fcmp[lg](1)

    System.out.println();
  }

  static void d_cmp() {
    double a = 1;
    double b = 2;

    System.out.print("d_cmp Expected: 100010001 Actual: ");

    if (a <  b) System.out.print(1); else System.out.print(0); // dcmp[lg](-1)
    if (a == b) System.out.print(1); else System.out.print(0);
    if (a >  b) System.out.print(1); else System.out.print(0);

    if (a <  a) System.out.print(1); else System.out.print(0);
    if (a == a) System.out.print(1); else System.out.print(0); // dcmp[lg](0)
    if (a >  a) System.out.print(1); else System.out.print(0);

    if (b <  a) System.out.print(1); else System.out.print(0);
    if (b == a) System.out.print(1); else System.out.print(0);
    if (b >  a) System.out.print(1); else System.out.print(0); // dcmp[lg](1)

    System.out.println();
  }

  static void a_cmp() {
    Object a = null;
    Object b = null;
    System.out.print("a_cmp Expected: 10 Actual: ");
    if (a == b) System.out.print(1); else System.out.print(0); // if_acmpne
    if (a != b) System.out.print(1); else System.out.print(0); // if_acmpeq
    System.out.println();
  }

  static void null_cmp() {
    Object o = null;
    System.out.print("null_cmp Expected: 10 Actual: ");
    if (o == null) System.out.print(1); else System.out.print(0); // ifnonnull
    if (o != null) System.out.print(1); else System.out.print(0); // ifnull
    System.out.println();
   }

  static void str_cmp() {
    String s1 = "abc";
    String s2 = "abc";
    String s3 = "ab";
    s3 = s3 + "c";
    System.out.println("str_cmp Expected: true,false Actual: " + (s1 == s2) + "," + (s1 == s3));
  }
}