Example usage for org.objectweb.asm Opcodes IF_ICMPLE

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

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Introduction

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

Prototype

int IF_ICMPLE

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

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Usage

From source file:com.mebigfatguy.exagent.StackTraceMethodVisitor.java

License:Apache License

private void injectCallStackPopulation() {

    // ExAgent.METHOD_INFO.get();
    super.visitFieldInsn(Opcodes.GETSTATIC, EXASUPPORT_CLASS_NAME, "METHOD_INFO",
            signaturizeClass(THREADLOCAL_CLASS_NAME));
    super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, THREADLOCAL_CLASS_NAME, "get", "()Ljava/lang/Object;", false);
    super.visitTypeInsn(Opcodes.CHECKCAST, LIST_CLASS_NAME);

    super.visitInsn(Opcodes.DUP);
    super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "size", "()I", true);
    super.visitVarInsn(Opcodes.ISTORE, depthLocalSlot);

    //new MethodInfo(cls, name, parmMap);
    super.visitTypeInsn(Opcodes.NEW, METHODINFO_CLASS_NAME);
    super.visitInsn(Opcodes.DUP);
    super.visitLdcInsn(clsName.replace('.', '/'));
    super.visitLdcInsn(methodName);

    if (parms.isEmpty()) {
        super.visitMethodInsn(Opcodes.INVOKESTATIC, COLLECTIONS_CLASS_NAME, "emptyList", "()Ljava/util/List;",
                false);//from   w w  w .ja v  a2s. c  o  m
    } else {
        super.visitTypeInsn(Opcodes.NEW, ARRAYLIST_CLASS_NAME);
        super.visitInsn(Opcodes.DUP);
        super.visitIntInsn(Opcodes.BIPUSH, parms.size());
        super.visitMethodInsn(Opcodes.INVOKESPECIAL, ARRAYLIST_CLASS_NAME, CTOR_NAME, "(I)V", false);

        for (Parm parm : parms) {
            super.visitInsn(Opcodes.DUP);

            switch (parm.signature) {

            case "C":
                super.visitVarInsn(Opcodes.ILOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(C)Ljava/lang/String;", false);
                break;

            case "Z":
                super.visitVarInsn(Opcodes.ILOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(Z)Ljava/lang/String;", false);
                break;

            case "B":
            case "S":
            case "I":
                super.visitVarInsn(Opcodes.ILOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(I)Ljava/lang/String;", false);
                break;

            case "J":
                super.visitVarInsn(Opcodes.LLOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(J)Ljava/lang/String;", false);
                break;

            case "F":
                super.visitVarInsn(Opcodes.FLOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(F)Ljava/lang/String;", false);
                break;

            case "D":
                super.visitVarInsn(Opcodes.DLOAD, parm.register);
                super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                        "(D)Ljava/lang/String;", false);
                break;

            default:
                super.visitVarInsn(Opcodes.ALOAD, parm.register);
                if (parm.signature.startsWith("[")) {
                    char arrayElemTypeChar = parm.signature.charAt(1);
                    if ((arrayElemTypeChar == 'L') || (arrayElemTypeChar == '[')) {
                        super.visitMethodInsn(Opcodes.INVOKESTATIC, ARRAYS_CLASS_NAME, "toString",
                                "([Ljava/lang/Object;)Ljava/lang/String;", false);
                    } else {
                        super.visitMethodInsn(Opcodes.INVOKESTATIC, ARRAYS_CLASS_NAME, "toString",
                                "([" + arrayElemTypeChar + ")Ljava/lang/String;", false);
                    }
                } else {
                    super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf",
                            "(Ljava/lang/Object;)Ljava/lang/String;", false);
                }
                break;
            }

            if (maxParmSize > 0) {
                super.visitInsn(Opcodes.DUP);
                super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, STRING_CLASS_NAME, "length", "()I", false);
                if (maxParmSize <= 127) {
                    super.visitIntInsn(Opcodes.BIPUSH, maxParmSize);
                } else {
                    super.visitLdcInsn(maxParmSize);
                }
                Label falseLabel = new Label();
                super.visitJumpInsn(Opcodes.IF_ICMPLE, falseLabel);
                super.visitIntInsn(Opcodes.BIPUSH, 0);
                super.visitLdcInsn(maxParmSize);
                super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, STRING_CLASS_NAME, "substring",
                        "(II)Ljava/lang/String;", false);
                super.visitLabel(falseLabel);
            }

            super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "add", "(Ljava/lang/Object;)Z",
                    true);
            super.visitInsn(Opcodes.POP);
        }
    }

    super.visitMethodInsn(Opcodes.INVOKESPECIAL, METHODINFO_CLASS_NAME, CTOR_NAME,
            "(Ljava/lang/String;Ljava/lang/String;Ljava/util/List;)V", false);

    //add(methodInfo);
    super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "add", "(Ljava/lang/Object;)Z", true);
    super.visitInsn(Opcodes.POP);
}

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();/* w w  w. j a va  2  s  .c  o 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.nginious.http.xsp.expr.LessOperator.java

License:Apache License

/**
 * Creates bytecode for evaluating the argument values as integers. The bytecode
 * is generated using the specified method visitor.
 * //  www  .  ja  v a  2  s.c om
 * @param visitor the method visitor
 */
private void compileInt(MethodVisitor visitor) {
    Label labelFalse = new Label();
    Label labelEnd = new Label();

    value2.compile(visitor, Type.INT);
    value1.compile(visitor, Type.INT);

    visitor.visitJumpInsn(Opcodes.IF_ICMPLE, labelFalse);

    // True
    visitor.visitLdcInsn(true);
    visitor.visitJumpInsn(Opcodes.GOTO, labelEnd);

    // False
    visitor.visitLabel(labelFalse);
    visitor.visitLdcInsn(false);

    visitor.visitLabel(labelEnd);
}

From source file:com.nginious.http.xsp.expr.MoreOperator.java

License:Apache License

/**
 * Creates bytecode for evaluating the argument values as integers. The bytecode
 * is generated using the specified method visitor.
 * //www.  j ava2  s. co  m
 * @param visitor the method visitor
 */
private void compileInt(MethodVisitor visitor) {
    Label labelFalse = new Label();
    Label labelEnd = new Label();

    value1.compile(visitor, Type.INT);
    value2.compile(visitor, Type.INT);

    visitor.visitJumpInsn(Opcodes.IF_ICMPLE, labelFalse);

    // True
    visitor.visitLdcInsn(true);
    visitor.visitJumpInsn(Opcodes.GOTO, labelEnd);

    // False
    visitor.visitLabel(labelFalse);
    visitor.visitLdcInsn(false);

    visitor.visitLabel(labelEnd);
}

From source file:com.retroduction.carma.transformer.asm.ror.IF_ICMPGT_2_IF_ICMPLE_Transition.java

License:Open Source License

public IF_ICMPGT_2_IF_ICMPLE_Transition() {
    super();
    this.sourceInstruction = Opcodes.IF_ICMPGT;
    this.targetInstruction = Opcodes.IF_ICMPLE;
}

From source file:com.retroduction.carma.transformer.asm.ror.IF_ICMPLE_2_IF_ICMPGT_Transition.java

License:Open Source License

public IF_ICMPLE_2_IF_ICMPGT_Transition() {
    super();
    this.sourceInstruction = Opcodes.IF_ICMPLE;
    this.targetInstruction = Opcodes.IF_ICMPGT;
}

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

License:Apache License

@Override
public void visitJumpInsn(int opcode, Label label) {
    int etype;/*  w w w .j  a v  a 2  s  .  c om*/
    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.
 *  //w ww  .  ja  v a2  s  .c o  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.scoopgmbh.copper.instrument.BuildStackInfoAdapter.java

License:Apache License

@Override
public void visitJumpInsn(int arg0, Label arg1) {
    savePreviousFrame();/*from   ww  w .ja  v  a2  s.c  o 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:/* www .  j a v a 2 s . c  om*/
        return false;
    }
}