Example usage for org.objectweb.asm Opcodes RETURN

List of usage examples for org.objectweb.asm Opcodes RETURN

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Prototype

int RETURN

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Usage

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreterTest.java

License:Open Source License

/**
 * Tests that arithmeticExpressionInterpreter() of the Testobject is working correctly
 * for logical xor expressions.//from w w w . ja va2 s .c om
 */
@Test
public void testArithmeticExpressionInterpreterLogicalIntXOr() {
    // INIT
    builder.addInsn(new InsnNode(Opcodes.ICONST_1)).//
            addInsn(new InsnNode(Opcodes.ICONST_2)).//
            addInsn(new InsnNode(Opcodes.IXOR)).//
            addInsn(new InsnNode(Opcodes.RETURN));

    final InsnList optimized = interpreter.optimize(builder.getMethod("testMethod").instructions,
            builder.getMethod("testMethod"));

    assertEquals(2, optimized.size());
    assertEquals(3, NodeHelper.getNumberValue(optimized.get(0)));
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreterTest.java

License:Open Source License

/**
 * Tests that arithmeticExpressionInterpreter() of the Testobject is working correctly
 * for logical and expressions.//from   www.  j  a v a  2s  .  c om
 */
@Test
public void testArithmeticExpressionInterpreterLogicalIntAnd() {
    // INIT
    builder.addInsn(new InsnNode(Opcodes.ICONST_1)).//
            addInsn(new InsnNode(Opcodes.ICONST_2)).//
            addInsn(new InsnNode(Opcodes.IAND)).//
            addInsn(new InsnNode(Opcodes.RETURN));

    final InsnList optimized = interpreter.optimize(builder.getMethod("testMethod").instructions,
            builder.getMethod("testMethod"));

    assertEquals(2, optimized.size());
    assertEquals(0, NodeHelper.getNumberValue(optimized.get(0)));
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreterTest.java

License:Open Source License

/**
 * Tests that arithmeticExpressionInterpreter() of the Testobject is working correctly
 * for logical or expressions.//from  w  ww  .ja va  2  s.  c o m
 */
@Test
public void testArithmeticExpressionInterpreterLogicalLongOr() {
    // INIT
    builder.addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LOR)).//
            addInsn(new InsnNode(Opcodes.RETURN));

    final InsnList optimized = interpreter.optimize(builder.getMethod("testMethod").instructions,
            builder.getMethod("testMethod"));

    assertEquals(2, optimized.size());
    assertEquals(1l, NodeHelper.getNumberValue(optimized.get(0)));
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreterTest.java

License:Open Source License

/**
 * Tests that arithmeticExpressionInterpreter() of the Testobject is working correctly
 * for logical xor expressions.//from   w w w . j  a v  a2  s.c o  m
 */
@Test
public void testArithmeticExpressionInterpreterLogicalLongXOr() {
    // INIT
    builder.addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LXOR)).//
            addInsn(new InsnNode(Opcodes.RETURN));

    final InsnList optimized = interpreter.optimize(builder.getMethod("testMethod").instructions,
            builder.getMethod("testMethod"));

    assertEquals(2, optimized.size());
    assertEquals(0l, NodeHelper.getNumberValue(optimized.get(0)));
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreterTest.java

License:Open Source License

/**
 * Tests that arithmeticExpressionInterpreter() of the Testobject is working correctly
 * for logical and expressions./*  w w w  .  jav a 2s.  c om*/
 */
@Test
public void testArithmeticExpressionInterpreterLogicalLongAnd() {
    // INIT
    builder.addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LCONST_1)).//
            addInsn(new InsnNode(Opcodes.LAND)).//
            addInsn(new InsnNode(Opcodes.RETURN));

    final InsnList optimized = interpreter.optimize(builder.getMethod("testMethod").instructions,
            builder.getMethod("testMethod"));

    assertEquals(2, optimized.size());
    assertEquals(1l, NodeHelper.getNumberValue(optimized.get(0)));
}

From source file:de.tuberlin.uebb.jbop.optimizer.ClassNodeBuilder.java

License:Open Source License

/**
 * Appends a Constructor with the given descriptors.
 * //from   w  ww  .jav  a2s. c  o m
 * @param constructorDesc
 *          the constructor desc
 * @param superConstructorDesc
 *          the super constructor desc
 * @return the class node builder
 */
public ClassNodeBuilder addConstructor(final String constructorDesc, final String superConstructorDesc) {
    if (isInterface) {
        return this;
    }
    addMethod("<init>", constructorDesc);//
    lastConstructorVarIndex = 1;
    final InsnList list = new InsnList();
    list.add(new VarInsnNode(Opcodes.ALOAD, 0));
    final Type methodType = Type.getMethodType(superConstructorDesc);
    for (final Type parameterType : methodType.getArgumentTypes()) {
        list.add(new VarInsnNode(parameterType.getOpcode(ILOAD), lastConstructorVarIndex));
        lastConstructorVarIndex += parameterType.getSize();
    }
    list.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, classNode.superName, "<init>", superConstructorDesc));
    list.add(new InsnNode(Opcodes.RETURN));
    addToConstructor(list);
    return this;
}

From source file:de.tuberlin.uebb.jbop.optimizer.ClassNodeBuilder.java

License:Open Source License

/**
 * Creates a setter for the last added field.
 * /*from  w w  w .  java  2 s.  c  o  m*/
 * @return the class node builder
 */
public ClassNodeBuilder withSetter() {
    if (isInterface) {
        return this;
    }
    final String name = lastField.name;
    final String desc = lastField.desc;
    addMethod("set" + Character.toUpperCase(name.charAt(0)) + name.substring(1), "(" + desc + ")V");
    final Type type = Type.getType(desc);
    addInsn(new VarInsnNode(Opcodes.ALOAD, 0));
    addInsn(new VarInsnNode(type.getOpcode(Opcodes.ILOAD), 1));
    addInsn(new FieldInsnNode(Opcodes.PUTFIELD, classNode.name, name, desc));
    addInsn(new InsnNode(Opcodes.RETURN));
    return this;
}

From source file:de.tuberlin.uebb.jbop.optimizer.ClassNodeBuilder.java

License:Open Source License

/**
 * adds a new empty void-method containing only the returnstatement.
 * /*  ww w . j a  v  a  2 s. c om*/
 * @param methodName
 *          the method name
 * @return the class node builder
 */
public ClassNodeBuilder addEmptyMethod(final String methodName) {
    if ("<init>".equals(methodName)) {
        return this;
    }
    addMethod(methodName, "()V");
    if (isInterface) {
        return this;
    }
    addInsn(new InsnNode(Opcodes.RETURN));
    return this;
}

From source file:de.tuberlin.uebb.jbop.optimizer.controlflow.ConstantIfInlinerTest.java

License:Open Source License

/**
 * Tests that constantIfInliner is working correctly.
 * /* ww  w.  j  a  v a 2 s .c om*/
 * Input is
 * 
 * <pre>
 * if(1<2)
 * ...
 * </pre>
 * 
 * @throws JBOPClassException
 *           the jBOP class exception
 */

@Test
public void testConstantIfInlinerIF_CMPEG() throws JBOPClassException {
    // INIT
    final LabelNode label = new LabelNode();
    builder.addInsn(new InsnNode(Opcodes.ICONST_1)).//
            addInsn(new InsnNode(Opcodes.ICONST_2)).//
            addInsn(new JumpInsnNode(Opcodes.IF_ICMPGE, label)).//
            addInsn(new InsnNode(Opcodes.NOP)).//
            addInsn(label).//
            addInsn(new InsnNode(Opcodes.RETURN));

    // RUN
    assertEquals(6, method.instructions.size());
    final InsnList optimized = constantIfInliner.optimize(method.instructions, method);

    // ASSERT
    assertEquals(3, optimized.size());
    assertEquals(Opcodes.NOP, optimized.get(0).getOpcode());
}

From source file:de.tuberlin.uebb.jbop.optimizer.controlflow.ConstantIfInlinerTest.java

License:Open Source License

/**
 * Tests that constantIfInliner is working correctly.
 * /*from  w ww  . jav  a 2 s  .  c o m*/
 * Input is
 * 
 * <pre>
 * if(1<=2)
 * ...
 * </pre>
 * 
 * @throws JBOPClassException
 *           the jBOP class exception
 */

@Test
public void testConstantIfInlinerIF_ICMPGT() throws JBOPClassException {
    // INIT
    final LabelNode label = new LabelNode();
    builder.addInsn(new InsnNode(Opcodes.ICONST_1)).//
            addInsn(new InsnNode(Opcodes.ICONST_2)).//
            addInsn(new JumpInsnNode(Opcodes.IF_ICMPGT, label)).//
            addInsn(new InsnNode(Opcodes.NOP)).//
            addInsn(label).//
            addInsn(new InsnNode(Opcodes.RETURN));

    // RUN
    assertEquals(6, method.instructions.size());
    final InsnList optimized = constantIfInliner.optimize(method.instructions, method);

    // ASSERT
    assertEquals(3, optimized.size());
    assertEquals(Opcodes.NOP, optimized.get(0).getOpcode());
}