Example usage for org.objectweb.asm Opcodes IF_ACMPEQ

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes IF_ACMPEQ.

Prototype

int IF_ACMPEQ

To view the source code for org.objectweb.asm Opcodes IF_ACMPEQ.

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Usage

From source file:com.google.test.metric.asm.MethodVisitorBuilder.java

License:Apache License

public void visitJumpInsn(final int opcode, final Label label) {
    if (opcode == Opcodes.GOTO) {
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Transform(lineNumber, "GOTO", null, null, null));
                block.unconditionalGoto(label);
            }/*ww w .ja  va 2 s  .c o m*/
        });
    } else if (opcode == Opcodes.JSR) {
        recorder.add(new Runnable() {
            public void run() {
                block.jumpSubroutine(label, lineNumber);
            }
        });
    } else {
        recorder.add(new Runnable() {
            public void run() {
                cyclomaticComplexity.add(lineNumber);
                switch (opcode) {
                case Opcodes.IFEQ:
                    if1("IFEQ");
                    break;
                case Opcodes.IFNE:
                    if1("IFNE");
                    break;
                case Opcodes.IFLT:
                    if1("IFLT");
                    break;
                case Opcodes.IFGE:
                    if1("IFGE");
                    break;
                case Opcodes.IFGT:
                    if1("IFGT");
                    break;
                case Opcodes.IFLE:
                    if1("IFLE");
                    break;
                case Opcodes.IFNONNULL:
                    if1("IFNONNULL");
                    break;
                case Opcodes.IFNULL:
                    if1("IFNULL");
                    break;
                case Opcodes.IF_ACMPEQ:
                    if2("IF_ACMPEQ");
                    break;
                case Opcodes.IF_ACMPNE:
                    if2("IF_ACMPNE");
                    break;
                case Opcodes.IF_ICMPEQ:
                    if2("IF_ICMPEQ");
                    break;
                case Opcodes.IF_ICMPGE:
                    if2("IF_ICMPGE");
                    break;
                case Opcodes.IF_ICMPGT:
                    if2("IF_ICMPGT");
                    break;
                case Opcodes.IF_ICMPLE:
                    if2("IF_ICMPLE");
                    break;
                case Opcodes.IF_ICMPLT:
                    if2("IF_ICMPLT");
                    break;
                case Opcodes.IF_ICMPNE:
                    if2("IF_ICMPNE");
                    break;
                default:
                    throw new UnsupportedOperationException("" + opcode);
                }
                block.conditionalGoto(label);
            }

            private void if1(String name) {
                block.addOp(new Transform(lineNumber, name, JavaType.INT, null, null));
            }

            private void if2(String name) {
                block.addOp(new Transform(lineNumber, name, JavaType.INT, JavaType.INT, null));
            }
        });
    }
}

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From source file:com.mebigfatguy.junitflood.jvm.OperandStack.java

License:Apache License

public void performJumpInsn(int opcode, Label label) {
    switch (opcode) {
    case Opcodes.IFEQ:
    case Opcodes.IFNE:
    case Opcodes.IFLT:
    case Opcodes.IFGE:
    case Opcodes.IFGT:
    case Opcodes.IFLE:
    case Opcodes.IFNULL:
    case Opcodes.IFNONNULL:
        pop();/*from  w  w  w  .j  a v a2 s  .co  m*/
        break;

    case Opcodes.IF_ICMPEQ:
    case Opcodes.IF_ICMPNE:
    case Opcodes.IF_ICMPLT:
    case Opcodes.IF_ICMPGE:
    case Opcodes.IF_ICMPGT:
    case Opcodes.IF_ICMPLE:
    case Opcodes.IF_ACMPEQ:
    case Opcodes.IF_ACMPNE:
        pop2();
        break;

    case Opcodes.GOTO:
        //nop
        break;

    case Opcodes.JSR:
        //nop -- a fudge
        break;
    }
}

---

From source file:com.retroduction.carma.transformer.asm.ror.IF_ACMPEQ_2_IF_ACMPNE_Transition.java

License:Open Source License

public IF_ACMPEQ_2_IF_ACMPNE_Transition() {
    super();
    this.sourceInstruction = Opcodes.IF_ACMPEQ;
    this.targetInstruction = Opcodes.IF_ACMPNE;
}

---

From source file:com.retroduction.carma.transformer.asm.ror.IF_ACMPNE_2_IF_ACMPEQ_Transition.java

License:Open Source License

public IF_ACMPNE_2_IF_ACMPEQ_Transition() {
    super();
    this.sourceInstruction = Opcodes.IF_ACMPNE;
    this.targetInstruction = Opcodes.IF_ACMPEQ;
}

---

From source file:com.trigersoft.jaque.expression.ExpressionMethodVisitor.java

License:Apache License

@Override
public void visitJumpInsn(int opcode, Label label) {
    int etype;//from  ww  w .j a v  a 2s.c o  m
    switch (opcode) {
    case Opcodes.GOTO:

        go(label);

        return;
    default:
    case Opcodes.JSR:
        throw notLambda(opcode);
    case Opcodes.IFEQ:
        etype = ExpressionType.NotEqual; // Equal
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IFNE:
        etype = ExpressionType.Equal; // NotEqual
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IFLT:
        etype = ExpressionType.GreaterThanOrEqual; // LessThan
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IFGE:
        etype = ExpressionType.LessThan; // GreaterThanOrEqual
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IFGT:
        etype = ExpressionType.LessThanOrEqual; // GreaterThan
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IFLE:
        etype = ExpressionType.GreaterThan; // LessThanOrEqual
        pushZeroConstantOrReduce();
        break;
    case Opcodes.IF_ICMPEQ:
    case Opcodes.IF_ACMPEQ: // ??
        etype = ExpressionType.NotEqual; // Equal
        break;
    case Opcodes.IF_ICMPNE:
    case Opcodes.IF_ACMPNE: // ??
        etype = ExpressionType.Equal; // NotEqual
        break;
    case Opcodes.IF_ICMPLT:
        etype = ExpressionType.GreaterThanOrEqual; // LessThan
        break;
    case Opcodes.IF_ICMPGE:
        etype = ExpressionType.LessThan; // GreaterThanOrEqual
        break;
    case Opcodes.IF_ICMPGT:
        etype = ExpressionType.LessThanOrEqual; // GreaterThan
        break;
    case Opcodes.IF_ICMPLE:
        etype = ExpressionType.GreaterThan; // LessThanOrEqual
        break;
    case Opcodes.IFNULL:
    case Opcodes.IFNONNULL:
        Expression e = Expression.isNull(_exprStack.pop());
        if (opcode == Opcodes.IFNULL) // IFNONNULL
            e = Expression.logicalNot(e);

        branch(label, e);

        return;
    }

    Expression second = _exprStack.pop();
    Expression first = _exprStack.pop();
    Expression e = Expression.binary(etype, first, second);

    branch(label, e);
}

---

From source file:de.codesourcery.asm.util.ASMUtil.java

License:Apache License

/**
 * Check whether an instruction is a conditional branch operation.
 *  /*from w  w w . ja  v  a 2  s .  co m*/
 * @param node
 * @return
 */
public static boolean isConditionalJump(AbstractInsnNode node) {
    if (node.getType() == AbstractInsnNode.JUMP_INSN) {
        switch (node.getOpcode()) {
        case Opcodes.IFEQ:
        case Opcodes.IFNE:
        case Opcodes.IFLT:
        case Opcodes.IFGE:
        case Opcodes.IFGT:
        case Opcodes.IFLE:
        case Opcodes.IF_ICMPEQ:
        case Opcodes.IF_ICMPNE:
        case Opcodes.IF_ICMPLT:
        case Opcodes.IF_ICMPGE:
        case Opcodes.IF_ICMPGT:
        case Opcodes.IF_ICMPLE:
        case Opcodes.IF_ACMPEQ:
        case Opcodes.IF_ACMPNE:
        case Opcodes.IFNULL:
        case Opcodes.IFNONNULL:
            return true;
        }
    }
    return false;
}

---

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static void transformIsValidArmor(MethodNode method) {
    InsnList needle = new InsnList();
    needle.add(new LabelNode());
    needle.add(new LineNumberNode(-1, new LabelNode()));
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETSTATIC, ASMNames.FD_ITEMS_IRON_HORSE_ARMOR));
    needle.add(new JumpInsnNode(Opcodes.IF_ACMPEQ, new LabelNode()));

    AbstractInsnNode node = ASMHelper.findFirstNodeFromNeedle(method.instructions, needle);

    InsnList newInstr = new InsnList();
    newInstr.add(new LabelNode());
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(new TypeInsnNode(Opcodes.INSTANCEOF, ASMNames.CL_ITEM_HORSE_ARMOR));
    LabelNode ln = new LabelNode();
    newInstr.add(new JumpInsnNode(Opcodes.IFEQ, ln));
    newInstr.add(new LabelNode());
    newInstr.add(new InsnNode(Opcodes.ICONST_1));
    newInstr.add(new InsnNode(Opcodes.IRETURN));
    newInstr.add(ln);//from  w  w  w  .  j ava  2 s.c o  m

    method.instructions.insertBefore(node, newInstr);
}

---

From source file:de.scoopgmbh.copper.instrument.BuildStackInfoAdapter.java

License:Apache License

@Override
public void visitJumpInsn(int arg0, Label arg1) {
    savePreviousFrame();//  ww  w. ja v  a2 s.  co m
    switch (arg0) {
    case Opcodes.IF_ACMPEQ:
    case Opcodes.IF_ACMPNE:
    case Opcodes.IF_ICMPEQ:
    case Opcodes.IF_ICMPGE:
    case Opcodes.IF_ICMPGT:
    case Opcodes.IF_ICMPLE:
    case Opcodes.IF_ICMPLT:
    case Opcodes.IF_ICMPNE:
        currentFrame.popStack();
    case Opcodes.IFEQ:
    case Opcodes.IFGE:
    case Opcodes.IFGT:
    case Opcodes.IFLE:
    case Opcodes.IFLT:
    case Opcodes.IFNE:
    case Opcodes.IFNONNULL:
    case Opcodes.IFNULL:
        currentFrame.popStack();
    case Opcodes.GOTO:
        forwardFrames.put(arg1, new StackInfo(currentFrame));
        break;
    case Opcodes.JSR:
        currentFrame.pushStack(retAddressType);
        forwardFrames.put(arg1, new StackInfo(currentFrame));
        break;
    default:
        logger.debug("Unhandled: ");
    }
    if (logger.isDebugEnabled())
        logger.debug("jumpInsn " + getOpCode(arg0) + " " + arg1);
    delegate.visitJumpInsn(arg0, arg1);
}

---

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

License:Open Source License

private boolean evalTwoOpValue(final Number op1, final Number op2, final int opcode) {
    switch (opcode) {
    case Opcodes.IF_ICMPEQ:
        return op1.intValue() == op2.intValue();
    case Opcodes.IF_ICMPNE:
        return op1.intValue() != op2.intValue();
    case Opcodes.IF_ICMPLT:
        return op1.intValue() < op2.intValue();
    case Opcodes.IF_ICMPGE:
        return op1.intValue() >= op2.intValue();
    case Opcodes.IF_ICMPGT:
        return op1.intValue() > op2.intValue();
    case Opcodes.IF_ICMPLE:
        return op1.intValue() <= op2.intValue();
    case Opcodes.IF_ACMPEQ:
        return op1 == op2;
    case Opcodes.IF_ACMPNE:
        return op1 != op2;
    default:/*from   ww w  .  j  a va 2  s  . co m*/
        return false;
    }
}

---

From source file:de.unisb.cs.st.javaslicer.common.classRepresentation.instructions.JumpInstruction.java

License:Open Source License

@Override
public String toString() {
    String condition;//ww  w.  java 2s  . c o  m
    switch (getOpcode()) {
    case Opcodes.IFEQ:
        condition = "IFEQ";
        break;
    case Opcodes.IFNE:
        condition = "IFNE";
        break;
    case Opcodes.IFLT:
        condition = "IFLT";
        break;
    case Opcodes.IFGE:
        condition = "IFGE";
        break;
    case Opcodes.IFGT:
        condition = "IFGT";
        break;
    case Opcodes.IFLE:
        condition = "IFLE";
        break;
    case Opcodes.IF_ICMPEQ:
        condition = "IF_ICMPEQ";
        break;
    case Opcodes.IF_ICMPNE:
        condition = "IF_ICMPNE";
        break;
    case Opcodes.IF_ICMPLT:
        condition = "IF_ICMPLT";
        break;
    case Opcodes.IF_ICMPGE:
        condition = "IF_ICMPGE";
        break;
    case Opcodes.IF_ICMPGT:
        condition = "IF_ICMPGT";
        break;
    case Opcodes.IF_ICMPLE:
        condition = "IF_ICMPLE";
        break;
    case Opcodes.IF_ACMPEQ:
        condition = "IF_ACMPEQ";
        break;
    case Opcodes.IF_ACMPNE:
        condition = "IF_ACMPNE";
        break;
    case Opcodes.GOTO:
        condition = "GOTO";
        break;
    case Opcodes.JSR:
        condition = "JSR";
        break;
    case Opcodes.IFNULL:
        condition = "IFNULL";
        break;
    case Opcodes.IFNONNULL:
        condition = "IFNONNULL";
        break;
    default:
        assert false;
        condition = "--ERROR--";
        break;
    }

    return condition + " " + this.label;
}

---

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